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Windows2003-3790/enduser/netmeeting/av/codecs/dec/dech261/sv_api.c
Microsoft 50969b0ea2 First commit
2020-09-30 16:53:55 +02:00

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/*
* @DEC_COPYRIGHT@
*/
/*
* HISTORY
* $Log: sv_api.c,v $
* Revision 1.1.8.11 1996/10/28 17:32:51 Hans_Graves
* MME-01402. Changed SvGet/SetParamInt() to qwords to allow for timestamps.
* [1996/10/28 17:09:33 Hans_Graves]
*
* Revision 1.1.8.10 1996/10/12 17:19:24 Hans_Graves
* Added initialization of SV_PARAM_SKIPPEL and SV_PARAM_HALFPEL to MPEG encode.
* [1996/10/12 17:16:28 Hans_Graves]
*
* Revision 1.1.8.9 1996/09/29 22:19:56 Hans_Graves
* Added stride to ScYuv411ToRgb() calls.
* [1996/09/29 21:34:40 Hans_Graves]
*
* Revision 1.1.8.8 1996/09/25 19:17:01 Hans_Graves
* Fix up support for YUY2 under MPEG.
* [1996/09/25 19:03:17 Hans_Graves]
*
* Revision 1.1.8.7 1996/09/18 23:51:11 Hans_Graves
* Added JPEG 4:1:1 to 4:2:2 conversions. Added BI_YVU9SEP and BI_RGB 24 support in MPEG decode.
* [1996/09/18 22:16:08 Hans_Graves]
*
* Revision 1.1.8.6 1996/07/30 20:25:50 Wei_Hsu
* Add Logarithmetic search for motion estimation.
* [1996/07/30 15:57:59 Wei_Hsu]
*
* Revision 1.1.8.5 1996/05/24 22:22:26 Hans_Graves
* Add GetImageSize MPEG support for BI_DECYUVDIB
* [1996/05/24 22:14:20 Hans_Graves]
*
* Revision 1.1.8.4 1996/05/08 16:24:32 Hans_Graves
* Put BITSTREAM_SUPPORT around BSIn in SvDecompress
* [1996/05/08 16:24:15 Hans_Graves]
*
* Revision 1.1.8.3 1996/05/07 21:24:05 Hans_Graves
* Add missing break in switch statement in SvRegisterCallback
* [1996/05/07 21:19:50 Hans_Graves]
*
* Revision 1.1.8.2 1996/05/07 19:56:46 Hans_Graves
* Added HUFF_SUPPORT. Remove NT warnings.
* [1996/05/07 17:27:18 Hans_Graves]
*
* Revision 1.1.6.12 1996/04/23 18:51:10 Karen_Dintino
* Fix the memory alloc for the ref buffer for WIN32
* [1996/04/23 18:49:23 Karen_Dintino]
*
* Revision 1.1.6.11 1996/04/17 23:44:35 Karen_Dintino
* added initializations for H.261/WIN32
* [1996/04/17 23:43:20 Karen_Dintino]
*
* Revision 1.1.6.10 1996/04/11 22:54:43 Karen_Dintino
* added casting for in SetFrameRate
* [1996/04/11 22:52:29 Karen_Dintino]
*
* Revision 1.1.6.9 1996/04/11 14:14:14 Hans_Graves
* Fix NT warnings
* [1996/04/11 14:09:53 Hans_Graves]
*
* Revision 1.1.6.8 1996/04/10 21:48:09 Hans_Graves
* Added SvGet/SetBoolean() functions.
* [1996/04/10 21:28:13 Hans_Graves]
*
* Revision 1.1.6.7 1996/04/09 20:50:44 Karen_Dintino
* Adding WIN32 support
* [1996/04/09 20:47:26 Karen_Dintino]
*
* Revision 1.1.6.6 1996/04/09 16:05:00 Hans_Graves
* Add some abs() around height params. SvRegisterCallback() cleanup
* [1996/04/09 15:39:31 Hans_Graves]
*
* Revision 1.1.6.5 1996/04/04 23:35:27 Hans_Graves
* Removed BI_YU16SEP support from MPEG decomp.
* [1996/04/04 23:12:02 Hans_Graves]
*
* Fixed up Multibuf size (MPEG) related stuff
* [1996/04/04 23:08:55 Hans_Graves]
*
* Revision 1.1.6.4 1996/04/01 15:17:47 Bjorn_Engberg
* Got rid of a compiler warning.
* [1996/04/01 15:02:35 Bjorn_Engberg]
*
* Revision 1.1.6.3 1996/03/29 22:22:36 Hans_Graves
* -Added JPEG_SUPPORT ifdefs.
* -Changed JPEG related structures to fit naming conventions.
* [1996/03/29 21:59:08 Hans_Graves]
*
* Revision 1.1.6.2 1996/03/16 20:13:51 Karen_Dintino
* Adding NT port changes for H.261
* [1996/03/16 19:48:31 Karen_Dintino]
*
* Revision 1.1.4.12 1996/02/26 18:42:32 Karen_Dintino
* fix PTT 01106 server crash in ICCompress
* [1996/02/26 18:41:33 Karen_Dintino]
*
* Revision 1.1.4.11 1996/02/22 17:35:19 Bjorn_Engberg
* Added support for JPEG Mono to BI_BITFIELDS 16 decompression on NT.
* [1996/02/22 17:34:53 Bjorn_Engberg]
*
* Revision 1.1.4.10 1996/02/08 13:48:44 Bjorn_Engberg
* Get rid of int to float compiler warning.
* [1996/02/08 13:48:20 Bjorn_Engberg]
*
* Revision 1.1.4.9 1996/02/07 23:24:08 Hans_Graves
* MPEG Key frame stats initialization
* [1996/02/07 23:14:41 Hans_Graves]
*
* Revision 1.1.4.8 1996/02/06 22:54:17 Hans_Graves
* Added SvGet/SetParam functions
* [1996/02/06 22:51:19 Hans_Graves]
*
* Revision 1.1.4.7 1996/01/08 20:19:33 Bjorn_Engberg
* Got rid of more compiler warnings.
* [1996/01/08 20:19:13 Bjorn_Engberg]
*
* Revision 1.1.4.6 1996/01/08 16:42:47 Hans_Graves
* Added MPEG II decoding support
* [1996/01/08 15:41:37 Hans_Graves]
*
* Revision 1.1.4.5 1996/01/02 18:32:14 Bjorn_Engberg
* Got rid of compiler warnings: Added Casts, Removed unused variables.
* [1996/01/02 17:26:21 Bjorn_Engberg]
*
* Revision 1.1.4.4 1995/12/28 18:40:06 Bjorn_Engberg
* IsSupported() sometimes returned garbage and thus a false match.
* SvDecompressQuery() and SvCompressQuery() were using the
* wrong lookup tables.
* [1995/12/28 18:39:30 Bjorn_Engberg]
*
* Revision 1.1.4.3 1995/12/08 20:01:30 Hans_Graves
* Added SvSetRate() and SvSetFrameRate() to H.261 compression open
* [1995/12/08 19:58:32 Hans_Graves]
*
* Revision 1.1.4.2 1995/12/07 19:32:17 Hans_Graves
* Added MPEG I & II Encoding support
* [1995/12/07 18:43:45 Hans_Graves]
*
* Revision 1.1.2.46 1995/11/30 20:17:06 Hans_Graves
* Added BI_DECGRAYDIB handling for JPEG decompression, used with Mono JPEG
* [1995/11/30 20:12:24 Hans_Graves]
*
* Revision 1.1.2.45 1995/11/29 17:53:26 Hans_Graves
* Added JPEG_DIB 8-bit to BI_DECGRAYDIB as supported format
* [1995/11/29 17:53:00 Hans_Graves]
*
* Revision 1.1.2.44 1995/11/28 22:47:33 Hans_Graves
* Added BI_BITFIELDS as supported decompression format for H261 and MPEG
* [1995/11/28 22:39:25 Hans_Graves]
*
* Revision 1.1.2.43 1995/11/17 21:31:28 Hans_Graves
* Added checks on ImageSize in SvDecompress()
* [1995/11/17 21:27:19 Hans_Graves]
*
* Query cleanup - Added lookup tables for supportted formats
* [1995/11/17 20:53:54 Hans_Graves]
*
* Revision 1.1.2.42 1995/11/03 16:36:25 Paul_Gauthier
* Reject requests to scale MPEG input during decompression
* [1995/11/03 16:34:01 Paul_Gauthier]
*
* Revision 1.1.2.41 1995/10/25 18:19:22 Bjorn_Engberg
* What was allocated with ScPaMalloc() must be freed with ScPaFree().
* [1995/10/25 18:02:04 Bjorn_Engberg]
*
* Revision 1.1.2.40 1995/10/25 17:38:04 Hans_Graves
* Removed some memory freeing calls on image memory in SvCloseCodec for H261 decoding. The app allocates the image buffer.
* [1995/10/25 17:37:35 Hans_Graves]
*
* Revision 1.1.2.39 1995/10/13 16:57:19 Bjorn_Engberg
* Added a cast to get rid of a compiler warning.
* [1995/10/13 16:56:29 Bjorn_Engberg]
*
* Revision 1.1.2.38 1995/10/06 20:51:47 Farokh_Morshed
* Enhance to handle BI_BITFIELDS for input to compression
* [1995/10/06 20:49:10 Farokh_Morshed]
*
* Revision 1.1.2.37 1995/10/02 19:31:03 Bjorn_Engberg
* Clarified what formats are supported and not.
* [1995/10/02 18:51:49 Bjorn_Engberg]
*
* Revision 1.1.2.36 1995/09/28 20:40:09 Farokh_Morshed
* Handle negative Height
* [1995/09/28 20:39:45 Farokh_Morshed]
*
* Revision 1.1.2.35 1995/09/26 17:49:47 Paul_Gauthier
* Fix H.261 output conversion to interleaved YUV
* [1995/09/26 17:49:20 Paul_Gauthier]
*
* Revision 1.1.2.34 1995/09/26 15:58:44 Paul_Gauthier
* Fix mono JPEG to interlaced 422 YUV conversion
* [1995/09/26 15:58:16 Paul_Gauthier]
*
* Revision 1.1.2.33 1995/09/25 21:18:14 Paul_Gauthier
* Added interleaved YUV output to decompression
* [1995/09/25 21:17:42 Paul_Gauthier]
*
* Revision 1.1.2.32 1995/09/22 12:58:50 Bjorn_Engberg
* More NT porting work; Added MPEG_SUPPORT and H261_SUPPORT.
* [1995/09/22 12:26:14 Bjorn_Engberg]
*
* Revision 1.1.2.31 1995/09/20 19:35:02 Hans_Graves
* Cleaned-up debugging statements
* [1995/09/20 19:33:07 Hans_Graves]
*
* Revision 1.1.2.30 1995/09/20 18:22:53 Karen_Dintino
* Free temp buffer after convert
* [1995/09/20 18:22:37 Karen_Dintino]
*
* Revision 1.1.2.29 1995/09/20 17:39:22 Karen_Dintino
* {** Merge Information **}
* {** Command used: bsubmit **}
* {** Ancestor revision: 1.1.2.27 **}
* {** Merge revision: 1.1.2.28 **}
* {** End **}
* Add RGB support to JPEG
* [1995/09/20 17:37:41 Karen_Dintino]
*
* Revision 1.1.2.28 1995/09/20 15:00:03 Bjorn_Engberg
* Port to NT
* [1995/09/20 14:43:15 Bjorn_Engberg]
*
* Revision 1.1.2.27 1995/09/13 19:42:44 Paul_Gauthier
* Added TGA2 support (direct 422 interleaved output from JPEG codec
* [1995/09/13 19:15:47 Paul_Gauthier]
*
* Revision 1.1.2.26 1995/09/11 18:53:45 Farokh_Morshed
* {** Merge Information **}
* {** Command used: bsubmit **}
* {** Ancestor revision: 1.1.2.24 **}
* {** Merge revision: 1.1.2.25 **}
* {** End **}
* Support BI_BITFIELDS format
* [1995/09/11 18:52:08 Farokh_Morshed]
*
* Revision 1.1.2.25 1995/09/05 14:05:01 Paul_Gauthier
* Add ICMODE_OLDQ flag on ICOpen for softjpeg to use old quant tables
* [1995/08/31 20:58:06 Paul_Gauthier]
*
* Revision 1.1.2.24 1995/08/16 19:56:46 Hans_Graves
* Fixed RELEASE_BUFFER callbacks for Images
* [1995/08/16 19:54:40 Hans_Graves]
*
* Revision 1.1.2.23 1995/08/15 19:14:18 Karen_Dintino
* pass H261 struct to inithuff & freehuff
* [1995/08/15 19:10:58 Karen_Dintino]
*
* Revision 1.1.2.22 1995/08/14 19:40:36 Hans_Graves
* Add CB_CODEC_DONE callback. Fixed Memory allocation and freeing under H261.
* [1995/08/14 18:45:22 Hans_Graves]
*
* Revision 1.1.2.21 1995/08/04 17:22:49 Hans_Graves
* Make END_SEQ callback happen after any H261 decompress error.
* [1995/08/04 17:20:55 Hans_Graves]
*
* Revision 1.1.2.20 1995/08/04 16:32:46 Karen_Dintino
* Free Huffman codes on end of Encode and Decode
* [1995/08/04 16:25:59 Karen_Dintino]
*
* Revision 1.1.2.19 1995/07/31 21:11:14 Karen_Dintino
* {** Merge Information **}
* {** Command used: bsubmit **}
* {** Ancestor revision: 1.1.2.17 **}
* {** Merge revision: 1.1.2.18 **}
* {** End **}
* Add 411YUVSEP Support
* [1995/07/31 20:41:28 Karen_Dintino]
*
* Revision 1.1.2.18 1995/07/31 20:19:58 Hans_Graves
* Set Format parameter in Frame callbacks
* [1995/07/31 20:16:06 Hans_Graves]
*
* Revision 1.1.2.17 1995/07/28 20:58:40 Hans_Graves
* Added Queue debugging messages.
* [1995/07/28 20:49:15 Hans_Graves]
*
* Revision 1.1.2.16 1995/07/28 17:36:10 Hans_Graves
* Fixed up H261 Compression and Decompression.
* [1995/07/28 17:26:17 Hans_Graves]
*
* Revision 1.1.2.15 1995/07/27 18:28:55 Hans_Graves
* Fixed AddBuffer() so it works with H261.
* [1995/07/27 18:24:37 Hans_Graves]
*
* Revision 1.1.2.14 1995/07/26 17:49:04 Hans_Graves
* Fixed SvCompressBegin() JPEG initialization. Added ImageQ support.
* [1995/07/26 17:41:24 Hans_Graves]
*
* Revision 1.1.2.13 1995/07/25 22:00:33 Hans_Graves
* Fixed H261 image size logic in SvCompressQuery().
* [1995/07/25 21:59:08 Hans_Graves]
*
* Revision 1.1.2.12 1995/07/21 17:41:20 Hans_Graves
* Renamed Callback related stuff.
* [1995/07/21 17:26:11 Hans_Graves]
*
* Revision 1.1.2.11 1995/07/18 17:26:56 Hans_Graves
* Fixed QCIF width parameter checking.
* [1995/07/18 17:24:55 Hans_Graves]
*
* Revision 1.1.2.10 1995/07/17 22:01:45 Hans_Graves
* Removed defines for CIF_WIDTH, CIF_HEIGHT, etc.
* [1995/07/17 21:48:51 Hans_Graves]
*
* Revision 1.1.2.9 1995/07/17 16:12:37 Hans_Graves
* H261 Cleanup.
* [1995/07/17 15:50:51 Hans_Graves]
*
* Revision 1.1.2.8 1995/07/12 19:48:30 Hans_Graves
* Fixed up some H261 Queue/Callback bugs.
* [1995/07/12 19:31:51 Hans_Graves]
*
* Revision 1.1.2.7 1995/07/11 22:12:00 Karen_Dintino
* Add SvCompressQuery, SvDecompressQuery support
* [1995/07/11 21:57:21 Karen_Dintino]
*
* Revision 1.1.2.6 1995/07/01 18:43:49 Karen_Dintino
* Add support for H.261 Decompress
* [1995/07/01 18:26:18 Karen_Dintino]
*
* Revision 1.1.2.5 1995/06/19 20:31:51 Karen_Dintino
* Adding support for H.261 Codec
* [1995/06/19 19:25:27 Karen_Dintino]
*
* Revision 1.1.2.4 1995/06/09 18:33:34 Hans_Graves
* Added SvGetInputBitstream(). Changed SvDecompressBegin() to handle NULL Image formats.
* [1995/06/09 16:35:29 Hans_Graves]
*
* Revision 1.1.2.3 1995/06/05 21:07:20 Hans_Graves
* Fixed logic in SvRegisterCallback().
* [1995/06/05 20:04:30 Hans_Graves]
*
* Revision 1.1.2.2 1995/05/31 18:12:42 Hans_Graves
* Inclusion in new SLIB location.
* [1995/05/31 17:18:53 Hans_Graves]
*
* Revision 1.1.2.10 1995/02/02 19:26:01 Paul_Gauthier
* Fix to blank bottom strip & server crash for softjpeg compress
* [1995/02/02 19:12:58 Paul_Gauthier]
*
* Revision 1.1.2.9 1995/01/20 21:45:57 Jim_Ludwig
* Add support for 16 bit YUV
* [1995/01/20 21:28:49 Jim_Ludwig]
*
* Revision 1.1.2.8 1994/12/12 15:38:54 Paul_Gauthier
* Merge changes from other SLIB versions
* [1994/12/12 15:34:21 Paul_Gauthier]
*
* Revision 1.1.2.7 1994/11/18 18:48:36 Paul_Gauthier
* Cleanup & bug fixes
* [1994/11/18 18:44:02 Paul_Gauthier]
*
* Revision 1.1.2.6 1994/10/28 19:56:30 Paul_Gauthier
* Additional Clean Up
* [1994/10/28 19:54:35 Paul_Gauthier]
*
* Revision 1.1.2.5 1994/10/17 19:03:28 Paul_Gauthier
* Fixed reversed Quality scale
* [1994/10/17 19:02:50 Paul_Gauthier]
*
* Revision 1.1.2.4 1994/10/13 20:34:27 Paul_Gauthier
* MPEG cleanup
* [1994/10/13 20:23:23 Paul_Gauthier]
*
* Revision 1.1.2.3 1994/10/10 21:45:50 Tom_Morris
* Rename Status to not conflict with X11
* [1994/10/10 21:44:16 Tom_Morris]
*
* Revision 1.1.2.2 1994/10/07 14:39:25 Paul_Gauthier
* SLIB v3.0 incl. MPEG Decode
* [1994/10/07 13:53:40 Paul_Gauthier]
*
* ******************************************************************
* Changes from original brance merged into this file 11/30/94 PSG
* ******************************************************************
* Revision 1.1.2.10 1994/08/11 21:27:24 Leela_Obilichetti
* Added in width and height checks into SvDecompressQuery and SvCompressQuery.
* [1994/08/11 21:03:38 Leela_Obilichetti]
*
* Revision 1.1.2.9 1994/08/09 18:52:40 Ken_Chiquoine
* set mode type in decode as well as encode
* [1994/08/09 18:52:17 Ken_Chiquoine]
*
* Revision 1.1.2.8 1994/08/04 22:06:33 Leela_Obilichetti
* oops, removed fprintf.
* [1994/08/04 21:54:11 Leela_Obilichetti]
*
* Revision 1.1.2.7 1994/08/04 21:34:04 Leela_Obilichetti
* v1 drop.
* [1994/08/04 21:05:01 Leela_Obilichetti]
*
* Revision 1.1.2.6 1994/07/15 23:31:43 Leela_Obilichetti
* added new stuff for compression - v4 of SLIB.
* [1994/07/15 23:29:17 Leela_Obilichetti]
*
* Revision 1.1.2.5 1994/06/08 16:44:28 Leela_Obilichetti
* fixes for YUV_to_RGB for OSF/1. Haven't tested on Microsoft.
* [1994/06/08 16:42:46 Leela_Obilichetti]
*
* Revision 1.1.2.4 1994/06/03 21:11:14 Leela_Obilichetti
* commment out the code to let in DECYUVDIB
* free memory that is allocated for YUV
* add in code to convert from DECSEPYUV to DECYUV -
* shouldn't get there since se don't allow YUV anymore
* [1994/06/03 21:03:42 Leela_Obilichetti]
*
* Revision 1.1.2.3 1994/05/11 21:02:17 Leela_Obilichetti
* bug fix for NT
* [1994/05/11 20:56:16 Leela_Obilichetti]
*
* Revision 1.1.2.2 1994/05/09 22:06:07 Leela_Obilichetti
* V3 drop
* [1994/05/09 21:51:30 Leela_Obilichetti]
*
* $EndLog$
*/
/*
**++
** FACILITY: Workstation Multimedia (WMM) v1.0
**
** FILE NAME:
** MODULE NAME:
**
** MODULE DESCRIPTION:
**
** DESIGN OVERVIEW:
**
**--
*/
/*****************************************************************************
** Copyright (c) Digital Equipment Corporation, 1994 **
** **
** All Rights Reserved. Unpublished rights reserved under the copyright **
** laws of the United States. **
** **
** The software contained on this media is proprietary to and embodies **
** the confidential technology of Digital Equipment Corporation. **
** Possession, use, duplication or dissemination of the software and **
** media is authorized only pursuant to a valid written license from **
** Digital Equipment Corporation. **
** **
** RESTRICTED RIGHTS LEGEND Use, duplication, or disclosure by the U.S. **
** Government is subject to restrictions as set forth in Subparagraph **
** (c)(1)(ii) of DFARS 252.227-7013, or in FAR 52.227-19, as applicable. **
******************************************************************************/
/*-------------------------------------------------------------------------
* Modification History: sv_api.c
*
* 08-Sep-94 PSG Added MPEG decode support
* 29-Jul-94 VB Added restrictions for compression
* 21-Jul-94 VB Rewrote/cleaned up sections of JPEG decompression
* 13-Jul-94 PSG Added support for encode/decode of grayscale only
* 07-Jul-94 PSG Converted to single Info structure (cmp/dcmp)
* 14-Jun-94 VB Added JPEG compression support
* 08-Jun-94 PSG Added support for BI_DECXIMAGEDIB (B,G,R,0)
* 06-Jun-94 PSG Bring code up to SLIB v0.04 spec
* 15-Apr-94 VB Added support for 24-bit,16-bit and 15-bit RGB output
* 24-Feb-94 PSG Bring code up to SLIB v0.02 spec
* 20-Jan-94 PSG added a number of new SLIB routines
* 12-Jan-94 VB Created (from SLIB spec.)
*
* Author(s):
* VB - Victor Bahl
* PSG - Paul Gauthier
--------------------------------------------------------------------------*/
/*
#define _SLIBDEBUG_
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "SV.h"
#include "sv_intrn.h"
#ifdef JPEG_SUPPORT
/*
* More JPEG code needs to be moved to sv_jpeg_init file
*/
#include "sv_jpeg_tables.h"
#endif /* JPEG_SUPPORT */
#include "sv_proto.h"
#include "SC.h"
#include "SC_conv.h"
#include "SC_err.h"
#ifdef WIN32
#include <mmsystem.h>
#endif
#ifdef _SLIBDEBUG_
#define _DEBUG_ 1 /* detailed debuging statements */
#define _VERBOSE_ 1 /* show progress */
#define _VERIFY_ 1 /* verify correct operation */
#define _WARN_ 0 /* warnings about strange behavior */
#endif
static void sv_copy_bmh (
BITMAPINFOHEADER *ImgFrom,
BITMAPINFOHEADER *ImgTo);
typedef struct SupportList_s {
int InFormat; /* Input format */
int InBits; /* Input number of bits */
int OutFormat; /* Output format */
int OutBits; /* Output number of bits */
} SupportList_t;
/*
** Input & Output Formats supported by SLIB Compression
*/
static SupportList_t _SvCompressionSupport[] = {
BI_DECYUVDIB, 16, JPEG_DIB, 8, /* YUV 4:2:2 Packed */
BI_DECYUVDIB, 16, JPEG_DIB, 24, /* YUV 4:2:2 Packed */
BI_DECYUVDIB, 16, MJPG_DIB, 24, /* YUV 4:2:2 Packed */
BI_YUY2, 16, JPEG_DIB, 8, /* YUV 4:2:2 Packed */
BI_YUY2, 16, JPEG_DIB, 24, /* YUV 4:2:2 Packed */
BI_YUY2, 16, MJPG_DIB, 24, /* YUV 4:2:2 Packed */
BI_S422, 16, JPEG_DIB, 8, /* YUV 4:2:2 Packed */
BI_S422, 16, JPEG_DIB, 24, /* YUV 4:2:2 Packed */
BI_S422, 16, MJPG_DIB, 24, /* YUV 4:2:2 Packed */
BI_BITFIELDS, 32, JPEG_DIB, 8, /* BITFIELDS */
BI_BITFIELDS, 32, JPEG_DIB, 24, /* BITFIELDS */
BI_BITFIELDS, 32, MJPG_DIB, 24, /* BITFIELDS */
BI_DECSEPRGBDIB, 32, JPEG_DIB, 8, /* RGB 32 Planar */
BI_DECSEPRGBDIB, 32, JPEG_DIB, 24, /* RGB 32 Planar */
BI_DECSEPRGBDIB, 32, MJPG_DIB, 24, /* RGB 32 Planar */
#ifdef WIN32
BI_RGB, 24, JPEG_DIB, 8, /* RGB 24 */
BI_RGB, 24, JPEG_DIB, 24, /* RGB 24 */
BI_RGB, 24, MJPG_DIB, 24, /* RGB 24 */
BI_RGB, 32, JPEG_DIB, 8, /* RGB 32 */
BI_RGB, 32, JPEG_DIB, 24, /* RGB 32 */
BI_RGB, 32, MJPG_DIB, 24, /* RGB 32 */
#endif /* WIN32 */
#ifndef WIN32
BI_DECGRAYDIB, 8, JPEG_DIB, 8, /* Gray 8 */
BI_DECXIMAGEDIB, 24, JPEG_DIB, 8, /* XIMAGE 24 */
BI_DECXIMAGEDIB, 24, JPEG_DIB, 24, /* XIMAGE 24 */
BI_DECXIMAGEDIB, 24, MJPG_DIB, 24, /* XIMAGE 24 */
#endif /* !WIN32 */
#ifdef H261_SUPPORT
BI_DECYUVDIB, 16, BI_DECH261DIB, 24, /* YUV 4:2:2 Packed */
BI_YU12SEP, 24, BI_DECH261DIB, 24, /* YUV 4:1:1 Planar */
BI_DECSEPYUV411DIB, 24, BI_DECH261DIB, 24, /* YUV 4:1:1 Planar */
BI_YU16SEP, 24, BI_DECH261DIB, 24, /* YUV 4:2:2 Planar */
BI_DECSEPYUVDIB, 24, BI_DECH261DIB, 24, /* YUV 4:2:2 Planar */
#endif /* H261_SUPPORT */
#ifdef H263_SUPPORT
BI_DECYUVDIB, 16, BI_DECH263DIB, 24, /* YUV 4:2:2 Packed */
BI_YU12SEP, 24, BI_DECH263DIB, 24, /* YUV 4:1:1 Planar */
BI_DECSEPYUV411DIB, 24, BI_DECH263DIB, 24, /* YUV 4:1:1 Planar */
BI_YU16SEP, 24, BI_DECH263DIB, 24, /* YUV 4:2:2 Planar */
BI_DECSEPYUVDIB, 24, BI_DECH263DIB, 24, /* YUV 4:2:2 Planar */
#endif /* H263_SUPPORT */
#ifdef MPEG_SUPPORT
BI_DECYUVDIB, 16, BI_DECMPEGDIB, 24, /* YUV 4:2:2 Packed */
BI_YU12SEP, 24, BI_DECMPEGDIB, 24, /* YUV 4:1:1 Planar */
BI_DECSEPYUV411DIB, 24, BI_DECMPEGDIB, 24, /* YUV 4:1:1 Planar */
BI_YU16SEP, 24, BI_DECMPEGDIB, 24, /* YUV 4:2:2 Planar */
BI_DECSEPYUVDIB, 24, BI_DECMPEGDIB, 24, /* YUV 4:2:2 Planar */
BI_YVU9SEP, 24, BI_DECMPEGDIB, 24, /* YUV 16:1:1 Planar */
BI_RGB, 24, BI_DECMPEGDIB, 24, /* RGB 24 */
#endif /* MPEG_SUPPORT */
#ifdef HUFF_SUPPORT
BI_DECYUVDIB, 16, BI_DECHUFFDIB, 24, /* YUV 4:2:2 Packed */
BI_YU12SEP, 24, BI_DECHUFFDIB, 24, /* YUV 4:1:1 Planar */
BI_DECSEPYUV411DIB, 24, BI_DECHUFFDIB, 24, /* YUV 4:1:1 Planar */
BI_YU16SEP, 24, BI_DECHUFFDIB, 24, /* YUV 4:2:2 Planar */
BI_DECSEPYUVDIB, 24, BI_DECHUFFDIB, 24, /* YUV 4:2:2 Planar */
#endif /* HUFF_SUPPORT */
0, 0, 0, 0
};
/*
** Input & Output Formats supported by SLIB Decompression
*/
static SupportList_t _SvDecompressionSupport[] = {
#ifdef JPEG_SUPPORT
JPEG_DIB, 8, BI_DECSEPYUVDIB, 24, /* YUV 4:2:2 Planar */
JPEG_DIB, 24, BI_DECSEPYUVDIB, 24, /* YUV 4:2:2 Planar */
MJPG_DIB, 24, BI_DECSEPYUVDIB, 24, /* YUV 4:2:2 Planar */
JPEG_DIB, 8, BI_YU16SEP, 24, /* YUV 4:2:2 Planar */
JPEG_DIB, 24, BI_YU16SEP, 24, /* YUV 4:2:2 Planar */
MJPG_DIB, 24, BI_YU16SEP, 24, /* YUV 4:2:2 Planar */
JPEG_DIB, 8, BI_DECYUVDIB, 16, /* YUV 4:2:2 Packed */
JPEG_DIB, 24, BI_DECYUVDIB, 16, /* YUV 4:2:2 Packed */
MJPG_DIB, 24, BI_DECYUVDIB, 16, /* YUV 4:2:2 Packed */
JPEG_DIB, 8, BI_YUY2, 16, /* YUV 4:2:2 Packed */
JPEG_DIB, 24, BI_YUY2, 16, /* YUV 4:2:2 Packed */
MJPG_DIB, 24, BI_YUY2, 16, /* YUV 4:2:2 Packed */
JPEG_DIB, 8, BI_BITFIELDS, 32, /* BITFIELDS */
JPEG_DIB, 24, BI_BITFIELDS, 32, /* BITFIELDS */
MJPG_DIB, 24, BI_BITFIELDS, 32, /* BITFIELDS */
JPEG_DIB, 8, BI_DECGRAYDIB, 8, /* Gray 8 */
#endif /* JPEG_SUPPORT */
#ifdef WIN32
JPEG_DIB, 8, BI_RGB, 16, /* RGB 16 */
JPEG_DIB, 24, BI_RGB, 16, /* RGB 16 */
MJPG_DIB, 24, BI_RGB, 16, /* RGB 16 */
JPEG_DIB, 8, BI_RGB, 24, /* RGB 24 */
JPEG_DIB, 24, BI_RGB, 24, /* RGB 24 */
MJPG_DIB, 24, BI_RGB, 24, /* RGB 24 */
JPEG_DIB, 8, BI_RGB, 32, /* RGB 32 */
JPEG_DIB, 24, BI_RGB, 32, /* RGB 32 */
MJPG_DIB, 24, BI_RGB, 32, /* RGB 32 */
JPEG_DIB, 8, BI_BITFIELDS, 16, /* BITFIELDS */
#ifdef H261_SUPPORT
BI_DECH261DIB, 24, BI_RGB, 16, /* RGB 16 */
BI_DECH261DIB, 24, BI_RGB, 24, /* RGB 24 */
BI_DECH261DIB, 24, BI_RGB, 32, /* RGB 32 */
#endif /* H261_SUPPORT */
#ifdef MPEG_SUPPORT
BI_DECMPEGDIB, 24, BI_RGB, 16, /* RGB 16 */
BI_DECMPEGDIB, 24, BI_RGB, 24, /* RGB 24 */
BI_DECMPEGDIB, 24, BI_RGB, 32, /* RGB 32 */
#endif /* MPEG_SUPPORT */
#endif /* WIN32 */
#ifndef WIN32
JPEG_DIB, 8, BI_DECXIMAGEDIB, 24, /* XIMAGE 24 */
JPEG_DIB, 24, BI_DECXIMAGEDIB, 24, /* XIMAGE 24 */
MJPG_DIB, 24, BI_DECXIMAGEDIB, 24, /* XIMAGE 24 */
#ifdef H261_SUPPORT
BI_DECH261DIB, 24, BI_DECXIMAGEDIB, 24, /* XIMAGE 24 */
#endif /* H261_SUPPORT */
#ifdef MPEG_SUPPORT
BI_DECMPEGDIB, 24, BI_DECXIMAGEDIB, 24, /* XIMAGE 24 */
#endif /* MPEG_SUPPORT */
#endif /* !WIN32 */
#ifdef H261_SUPPORT
BI_DECH261DIB, 24, BI_YU12SEP, 24, /* YUV 4:1:1 Planar */
BI_DECH261DIB, 24, BI_DECSEPYUV411DIB, 24, /* YUV 4:1:1 Planar */
BI_DECH261DIB, 24, BI_DECYUVDIB, 16, /* YUV 4:2:2 Packed */
BI_DECH261DIB, 24, BI_BITFIELDS, 32, /* BITFIELDS */
#endif /* H261_SUPPORT */
#ifdef H263_SUPPORT
BI_DECH263DIB, 24, BI_YU12SEP, 24, /* YUV 4:1:1 Planar */
BI_DECH263DIB, 24, BI_DECSEPYUV411DIB, 24, /* YUV 4:1:1 Planar */
BI_DECH263DIB, 24, BI_YUY2, 16, /* YUV 4:2:2 Packed */
BI_DECH263DIB, 24, BI_DECYUVDIB, 16, /* YUV 4:2:2 Packed */
#endif /* H263_SUPPORT */
#ifdef MPEG_SUPPORT
BI_DECMPEGDIB, 24, BI_YU12SEP, 24, /* YUV 4:1:1 Planar */
BI_DECMPEGDIB, 24, BI_DECSEPYUV411DIB, 24, /* YUV 4:1:1 Planar */
BI_DECMPEGDIB, 24, BI_DECYUVDIB, 16, /* YUV 4:2:2 Packed */
BI_DECMPEGDIB, 24, BI_YUY2, 16, /* YUV 4:2:2 Packed */
BI_DECMPEGDIB, 24, BI_YU16SEP, 24, /* YUV 4:2:2 Planar */
BI_DECMPEGDIB, 24, BI_BITFIELDS, 32, /* BITFIELDS */
#endif /* MPEG_SUPPORT */
#ifdef HUFF_SUPPORT
BI_DECHUFFDIB, 24, BI_YU12SEP, 24, /* YUV 4:1:1 Planar */
BI_DECHUFFDIB, 24, BI_DECSEPYUV411DIB, 24, /* YUV 4:1:1 Planar */
BI_DECHUFFDIB, 24, BI_DECYUVDIB, 16, /* YUV 4:2:2 Packed */
#endif /* HUFF_SUPPORT */
0, 0, 0, 0
};
/*
** Name: IsSupported
** Desc: Lookup the a given input and output format to see if it
** exists in a SupportList.
** Note: If OutFormat==-1 and OutBits==-1 then only input format
** is checked for support.
** If InFormat==-1 and InBits==-1 then only output format
** is checked for support.
** Return: NULL Formats not supported.
** not NULL A pointer to the list entry.
*/
static SupportList_t *IsSupported(SupportList_t *list,
int InFormat, int InBits,
int OutFormat, int OutBits)
{
if (OutFormat==-1 && OutBits==-1) /* Looking up only the Input format */
{
while (list->InFormat || list->InBits)
if (list->InFormat == InFormat && list->InBits==InBits)
return(list);
else
list++;
return(NULL);
}
if (InFormat==-1 && InBits==-1) /* Looking up only the Output format */
{
while (list->InFormat || list->InBits)
if (list->OutFormat == OutFormat && list->OutBits==OutBits)
return(list);
else
list++;
return(NULL);
}
/* Looking up both Input and Output */
while (list->InFormat || list->InBits)
if (list->InFormat == InFormat && list->InBits==InBits &&
list->OutFormat == OutFormat && list->OutBits==OutBits)
return(list);
else
list++;
return(NULL);
}
/*
** Name: SvOpenCodec
** Purpose: Open the specified codec. Return stat code.
**
** Args: CodecType = i.e. SV_JPEG_ENCODE, SV_JPEG_DECODE, etc.
** Svh = handle to software codec's Info structure.
*/
SvStatus_t SvOpenCodec (SvCodecType_e CodecType, SvHandle_t *Svh)
{
SvCodecInfo_t *Info = NULL;
_SlibDebug(_DEBUG_, printf("SvOpenCodec()\n") );
/* check if CODEC is supported */
switch (CodecType)
{
#ifdef JPEG_SUPPORT
case SV_JPEG_DECODE:
case SV_JPEG_ENCODE:
break;
#endif /* JPEG_SUPPORT */
#ifdef H261_SUPPORT
case SV_H261_ENCODE:
case SV_H261_DECODE:
break;
#endif /* H261_SUPPORT */
#ifdef H263_SUPPORT
case SV_H263_ENCODE:
case SV_H263_DECODE:
break;
#endif /* H263_SUPPORT */
#ifdef MPEG_SUPPORT
case SV_MPEG_ENCODE:
case SV_MPEG_DECODE:
case SV_MPEG2_ENCODE:
case SV_MPEG2_DECODE:
break;
#endif /* MPEG_SUPPORT */
#ifdef HUFF_SUPPORT
case SV_HUFF_ENCODE:
case SV_HUFF_DECODE:
break;
#endif /* HUFF_SUPPORT */
default:
return(SvErrorCodecType);
}
if (!Svh)
return (SvErrorBadPointer);
/*
** Allocate memory for the Codec Info structure:
*/
if ((Info = (SvCodecInfo_t *) ScAlloc(sizeof(SvCodecInfo_t))) == NULL)
return (SvErrorMemory);
memset (Info, 0, sizeof(SvCodecInfo_t));
Info->BSIn=NULL;
Info->BSOut=NULL;
Info->mode = CodecType;
Info->started = FALSE;
/*
** Allocate memory for Info structure and clear it
*/
switch (CodecType)
{
#ifdef JPEG_SUPPORT
case SV_JPEG_DECODE:
if ((Info->jdcmp = (SvJpegDecompressInfo_t *)
ScAlloc(sizeof(SvJpegDecompressInfo_t))) == NULL)
return(SvErrorMemory);
memset (Info->jdcmp, 0, sizeof(SvJpegDecompressInfo_t));
break;
case SV_JPEG_ENCODE:
if ((Info->jcomp = (SvJpegCompressInfo_t *)
ScAlloc(sizeof(SvJpegCompressInfo_t))) == NULL)
return (SvErrorMemory);
memset (Info->jcomp, 0, sizeof(SvJpegCompressInfo_t));
break;
#endif /* JPEG_SUPPORT */
#ifdef MPEG_SUPPORT
case SV_MPEG_DECODE:
case SV_MPEG2_DECODE:
if ((Info->mdcmp = (SvMpegDecompressInfo_t *)
ScAlloc(sizeof(SvMpegDecompressInfo_t))) == NULL)
return(SvErrorMemory);
memset (Info->mdcmp, 0, sizeof(SvMpegDecompressInfo_t));
Info->mdcmp->timecode0 = 0;
Info->mdcmp->timecode_state = MPEG_TIMECODE_START;
Info->mdcmp->timecodefps = 0.0F;
Info->mdcmp->fps = 0.0F;
Info->mdcmp->twostreams = 0;
Info->mdcmp->verbose=FALSE;
Info->mdcmp->quiet=TRUE;
ScBufQueueCreate(&Info->BufQ);
ScBufQueueCreate(&Info->ImageQ);
break;
case SV_MPEG_ENCODE:
case SV_MPEG2_ENCODE:
if ((Info->mcomp = (SvMpegCompressInfo_t *)
ScAlloc(sizeof(SvMpegCompressInfo_t))) == NULL)
return(SvErrorMemory);
memset (Info->mcomp, 0, sizeof(SvMpegCompressInfo_t));
Info->mcomp->quiet=1;
SvSetParamInt((SvHandle_t)Info, SV_PARAM_QUALITY, 100);
SvSetParamBoolean((SvHandle_t)Info, SV_PARAM_FASTENCODE, FALSE);
SvSetParamBoolean((SvHandle_t)Info, SV_PARAM_FASTDECODE, FALSE);
SvSetParamInt((SvHandle_t)Info, SV_PARAM_MOTIONALG, 0);
SvSetParamInt((SvHandle_t)Info, SV_PARAM_ALGFLAGS,
PARAM_ALGFLAG_HALFPEL);
SvSetParamInt((SvHandle_t)Info, SV_PARAM_BITRATE, 1152000);
SvSetParamFloat((SvHandle_t)Info, SV_PARAM_FPS, (float)25.0);
SvSetParamInt((SvHandle_t)Info, SV_PARAM_KEYSPACING, 12);
SvSetParamInt((SvHandle_t)Info, SV_PARAM_SUBKEYSPACING, 4);
ScBufQueueCreate(&Info->BufQ);
ScBufQueueCreate(&Info->ImageQ);
break;
#endif /* MPEG_SUPPORT */
#ifdef H261_SUPPORT
case SV_H261_DECODE:
if ((Info->h261 = (SvH261Info_t *)
ScAlloc(sizeof(SvH261Info_t))) == NULL)
return(SvErrorMemory);
memset (Info->h261, 0, sizeof(SvH261Info_t));
Info->h261->inited=FALSE;
SvSetParamInt((SvHandle_t)Info, SV_PARAM_QUALITY, 100);
ScBufQueueCreate(&Info->BufQ);
ScBufQueueCreate(&Info->ImageQ);
break;
case SV_H261_ENCODE:
if ((Info->h261 = (SvH261Info_t *)
ScAlloc(sizeof(SvH261Info_t))) == NULL)
return(SvErrorMemory);
memset (Info->h261, 0, sizeof(SvH261Info_t));
Info->h261->inited=FALSE;
SvSetParamInt((SvHandle_t)Info, SV_PARAM_QUALITY, 100);
SvSetParamInt((SvHandle_t)Info, SV_PARAM_MOTIONALG, ME_BRUTE);
SvSetParamInt((SvHandle_t)Info, SV_PARAM_MOTIONSEARCH, 5);
SvSetParamInt((SvHandle_t)Info, SV_PARAM_MOTIONTHRESH, 600);
SvSetParamInt((SvHandle_t)Info, SV_PARAM_ALGFLAGS, 0);
SvSetParamInt((SvHandle_t)Info, SV_PARAM_BITRATE, 352000);
SvSetParamInt((SvHandle_t)Info, SV_PARAM_QUANTI, 10); /* for VBR */
SvSetParamInt((SvHandle_t)Info, SV_PARAM_QUANTP, 10);
SvSetParamInt((SvHandle_t)Info, SV_PARAM_PACKETSIZE, 512);
SvSetParamFloat((SvHandle_t)Info, SV_PARAM_FPS, (float)15.0);
ScBufQueueCreate(&Info->BufQ);
ScBufQueueCreate(&Info->ImageQ);
break;
#endif /* H261_SUPPORT */
#ifdef H263_SUPPORT
case SV_H263_DECODE:
if ((Info->h263dcmp = (SvH263DecompressInfo_t *)
ScAlloc(sizeof(SvH263DecompressInfo_t))) == NULL)
return(SvErrorMemory);
memset (Info->h263dcmp, 0, sizeof(SvH263DecompressInfo_t));
Info->h263dcmp->inited=FALSE;
ScBufQueueCreate(&Info->BufQ);
ScBufQueueCreate(&Info->ImageQ);
break;
case SV_H263_ENCODE:
if ((Info->h263comp = (SvH263CompressInfo_t *)
ScAlloc(sizeof(SvH263CompressInfo_t))) == NULL)
return(SvErrorMemory);
memset (Info->h263comp, 0, sizeof(SvH263CompressInfo_t));
Info->h263comp->inited=FALSE;
SvSetParamInt((SvHandle_t)Info, SV_PARAM_MOTIONALG, 0);
SvSetParamInt((SvHandle_t)Info, SV_PARAM_BITRATE, 0);
SvSetParamFloat((SvHandle_t)Info, SV_PARAM_FPS, (float)30.0);
SvSetParamInt((SvHandle_t)Info, SV_PARAM_ALGFLAGS, 0);
SvSetParamInt((SvHandle_t)Info, SV_PARAM_PACKETSIZE, 512);
SvSetParamInt((SvHandle_t)Info, SV_PARAM_QUANTI, 10);
SvSetParamInt((SvHandle_t)Info, SV_PARAM_QUANTP, 10);
SvSetParamInt((SvHandle_t)Info, SV_PARAM_QUALITY, 0);
SvSetParamInt((SvHandle_t)Info, SV_PARAM_KEYSPACING, 120);
ScBufQueueCreate(&Info->BufQ);
ScBufQueueCreate(&Info->ImageQ);
break;
#endif /* H263_SUPPORT */
#ifdef HUFF_SUPPORT
case SV_HUFF_DECODE:
case SV_HUFF_ENCODE:
if ((Info->huff = (SvHuffInfo_t *)
ScAlloc(sizeof(SvHuffInfo_t))) == NULL)
return(SvErrorMemory);
memset (Info->huff, 0, sizeof(SvHuffInfo_t));
ScBufQueueCreate(&Info->BufQ);
ScBufQueueCreate(&Info->ImageQ);
break;
#endif /* HUFF_SUPPORT */
}
*Svh = (SvHandle_t) Info; /* Return handle */
_SlibDebug(_DEBUG_, printf("SvOpenCodec() returns Svh=%p\n", *Svh) );
return(NoErrors);
}
/*
** Name: SvCloseCodec
** Purpose: Closes the specified codec. Free the Info structure
**
** Args: Svh = handle to software codec's Info structure.
**
** XXX - needs to change since now we have compression also, i.e.
** Svh should be handle to the CodecInfo structure. (VB)
*/
SvStatus_t SvCloseCodec (SvHandle_t Svh)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
_SlibDebug(_DEBUG_, printf("SvCloseCodec()\n") );
if (!Info)
return(SvErrorCodecHandle);
if (Info->BSIn)
ScBSDestroy(Info->BSIn);
if (Info->BSOut)
ScBSDestroy(Info->BSOut);
if (Info->BufQ);
ScBufQueueDestroy(Info->BufQ);
if (Info->ImageQ);
ScBufQueueDestroy(Info->ImageQ);
switch (Info->mode) /* free all associated codec memory */
{
#ifdef JPEG_SUPPORT
case SV_JPEG_DECODE:
{
int i;
for (i = 0; i < 4; i++) {
if (Info->jdcmp->DcHt[i])
ScPaFree(Info->jdcmp->DcHt[i]);
if (Info->jdcmp->AcHt[i])
ScPaFree(Info->jdcmp->AcHt[i]);
}
if (Info->jdcmp->compinfo)
ScFree(Info->jdcmp->compinfo);
if (Info->jdcmp) {
if (Info->jdcmp->TempImage)
ScPaFree(Info->jdcmp->TempImage);
if (Info->jdcmp->_SvBlockPtr)
ScFree(Info->jdcmp->_SvBlockPtr);
ScFree(Info->jdcmp);
}
}
break;
case SV_JPEG_ENCODE:
{
int i;
for (i = 0 ; i < Info->jcomp->NumComponents ; i++)
if (Info->jcomp->Qt[i])
ScPaFree(Info->jcomp->Qt[i]);
for (i = 0; i < 4; i++) {
if (Info->jcomp->DcHt[i])
ScPaFree(Info->jcomp->DcHt[i]);
if (Info->jcomp->AcHt[i])
ScPaFree(Info->jcomp->AcHt[i]);
}
if (Info->jcomp->compinfo)
ScFree(Info->jcomp->compinfo);
if (Info->jcomp) {
if (Info->jcomp->BlkBuffer)
ScPaFree(Info->jcomp->BlkBuffer);
if (Info->jcomp->BlkTable)
ScPaFree(Info->jcomp->BlkTable);
ScFree(Info->jcomp);
}
}
break;
#endif /* JPEG_SUPPORT */
#ifdef H261_SUPPORT
case SV_H261_ENCODE:
if (Info->h261)
{
svH261CompressFree(Info);
ScFree(Info->h261);
}
break;
case SV_H261_DECODE:
if (Info->h261)
{
svH261DecompressFree(Info);
ScFree(Info->h261);
}
break;
#endif /* H261_SUPPORT */
#ifdef H263_SUPPORT
case SV_H263_DECODE:
if (Info->h263dcmp)
{
svH263FreeDecompressor(Info);
ScFree(Info->h263dcmp);
}
break;
case SV_H263_ENCODE:
if (Info->h263comp)
{
svH263FreeCompressor(Info);
ScFree(Info->h263comp);
}
break;
#endif /* H263_SUPPORT */
#ifdef MPEG_SUPPORT
case SV_MPEG_DECODE:
case SV_MPEG2_DECODE:
if (Info->mdcmp) {
sv_MpegFreeDecoder(Info);
ScFree(Info->mdcmp);
}
break;
case SV_MPEG_ENCODE:
case SV_MPEG2_ENCODE:
if (Info->mcomp) {
ScFree(Info->mcomp);
}
break;
#endif /* MPEG_SUPPORT */
#ifdef HUFF_SUPPORT
case SV_HUFF_DECODE:
case SV_HUFF_ENCODE:
if (Info->huff) {
sv_HuffFreeDecoder(Info);
ScFree(Info->huff);
}
break;
break;
#endif /* HUFF_SUPPORT */
}
/*
** Free Info structure
*/
ScFree(Info);
return(NoErrors);
}
/*
** Name: SvDecompressBegin
** Purpose: Initialize the Decompression Codec. Call after SvOpenCodec &
** before SvDecompress (SvDecompress will call SvDecompressBegin
** on first call to codec after open if user doesn't call it)
**
** Args: Svh = handle to software codec's Info structure.
** ImgIn = format of input (uncompressed) image
** ImgOut = format of output (compressed) image
*/
SvStatus_t SvDecompressBegin (SvHandle_t Svh, BITMAPINFOHEADER *ImgIn,
BITMAPINFOHEADER *ImgOut)
{
int stat;
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
_SlibDebug(_DEBUG_, printf("SvDecompressBegin()\n") );
if (!Info)
return(SvErrorCodecHandle);
if (Info->started)
return(SvErrorNone);
/* if no Image header provided, use previous headers */
if (!ImgIn)
ImgIn = &Info->InputFormat;
if (!ImgOut)
ImgOut = &Info->OutputFormat;
stat=SvDecompressQuery (Svh, ImgIn, ImgOut);
RETURN_ON_ERROR(stat);
/*
** Save input & output formats for SvDecompress
*/
sv_copy_bmh(ImgIn, &Info->InputFormat);
sv_copy_bmh(ImgOut, &Info->OutputFormat);
Info->Width = Info->InputFormat.biWidth;
Info->Height = abs(Info->InputFormat.biHeight);
switch (Info->mode)
{
#ifdef JPEG_SUPPORT
case SV_JPEG_DECODE:
{
SvJpegDecompressInfo_t *DInfo;
/*
** Load the default Huffman tablse
*/
stat = sv_LoadDefaultHTable (Info);
RETURN_ON_ERROR (stat);
stat = sv_InitJpegDecoder (Info);
RETURN_ON_ERROR (stat);
/*
** Video-specific information will be filled in during processing
** of first frame
*/
DInfo = Info->jdcmp;
DInfo->InfoFilled = 0;
DInfo->ReInit = 1;
DInfo->DecompressStarted = TRUE;
DInfo->TempImage = NULL;
break;
}
#endif
#ifdef MPEG_SUPPORT
case SV_MPEG_DECODE:
case SV_MPEG2_DECODE:
Info->mdcmp->DecompressStarted = TRUE;
/* the default data source is the buffer queue */
if (Info->BSIn)
ScBSReset(Info->BSIn);
else
stat=SvSetDataSource (Svh, SV_USE_BUFFER_QUEUE, 0, NULL, 0);
RETURN_ON_ERROR (stat);
stat = sv_MpegInitDecoder(Info);
RETURN_ON_ERROR (stat);
break;
#endif /* MPEG_SUPPORT */
#ifdef H261_SUPPORT
case SV_H261_DECODE:
stat = svH261Init(Info);
RETURN_ON_ERROR (stat);
break;
#endif /* H261_SUPPORT */
#ifdef H263_SUPPORT
case SV_H263_DECODE:
stat = svH263InitDecompressor(Info);
RETURN_ON_ERROR (stat);
break;
#endif /* H263_SUPPORT */
#ifdef HUFF_SUPPORT
case SV_HUFF_DECODE:
Info->huff->DecompressStarted = TRUE;
/* the default data source is the buffer queue */
if (Info->BSIn)
ScBSReset(Info->BSIn);
else
stat=SvSetDataSource (Svh, SV_USE_BUFFER_QUEUE, 0, NULL, 0);
RETURN_ON_ERROR (stat);
stat = sv_HuffInitDecoder(Info);
RETURN_ON_ERROR (stat);
break;
#endif /* HUFF_SUPPORT */
}
Info->started=TRUE;
return (NoErrors);
}
/*
** Name: SvGetDecompressSize
** Purpose: Return minimum data buffer size to receive decompressed data
** for current settings on codec
**
** Args: Svh = handle to software codec's Info structure.
** MinSize = Returns minimum buffer size required
*/
SvStatus_t SvGetDecompressSize (SvHandle_t Svh, int *MinSize)
{
int pixels,lines;
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
if (!Info)
return(SvErrorCodecHandle);
switch (Info->mode) /* check that decompressor was started */
{
#ifdef JPEG_SUPPORT
case SV_JPEG_DECODE:
if (!Info->jdcmp->DecompressStarted)
return(SvErrorDcmpNotStarted);
break;
#endif /* JPEG_SUPPORT */
#ifdef MPEG_SUPPORT
case SV_MPEG_DECODE:
case SV_MPEG2_DECODE:
if (!Info->mdcmp->DecompressStarted)
return(SvErrorDcmpNotStarted);
break;
#endif /* MPEG_SUPPORT */
default:
break;
}
if (!MinSize)
return(SvErrorBadPointer);
pixels = Info->OutputFormat.biWidth;
lines = Info->OutputFormat.biHeight;
if (lines < 0) lines = -lines;
_SlibDebug(_VERBOSE_,
printf("OutputFormat.biWidth=%d OutputFormat.biHeight=%d\n",
pixels, lines) );
switch (Info->mode)
{
#ifdef JPEG_SUPPORT
case SV_JPEG_DECODE:
/*
** On output, accept: 8, 16 or 24 bit uncompressed RGB
** or YUV formats, 32 bit uncompressed RGB
*/
if (Info->OutputFormat.biBitCount == 8)
*MinSize = pixels * lines;
else if (Info->OutputFormat.biBitCount == 24) {
if (Info->OutputFormat.biCompression == BI_RGB)
*MinSize = 3 * pixels * lines;
else if (Info->OutputFormat.biCompression == BI_DECSEPRGBDIB)
*MinSize = 3 * pixels * lines;
else if (IsYUV422Packed(Info->OutputFormat.biCompression))
*MinSize = 2 * pixels * lines;
else if (Info->OutputFormat.biCompression == BI_DECXIMAGEDIB)
*MinSize = 4 * pixels * lines;
else if (IsYUV422Sep(Info->OutputFormat.biCompression))
*MinSize = 2 * pixels * lines;
else if (IsYUV411Sep(Info->OutputFormat.biCompression))
*MinSize = 2 * pixels * lines;
else
return(SvErrorUnrecognizedFormat);
}
else if (Info->OutputFormat.biBitCount == 16) {
if (IsYUV422Packed(Info->OutputFormat.biCompression))
*MinSize = 2 * pixels * lines;
else if (Info->OutputFormat.biCompression == BI_RGB)
*MinSize = 2 * pixels * lines;
}
else if (Info->OutputFormat.biBitCount == 32) {
if (Info->OutputFormat.biCompression == BI_RGB ||
Info->OutputFormat.biCompression == BI_BITFIELDS)
*MinSize = 4 * pixels * lines;
}
break;
#endif /* JPEG_SUPPORT */
#ifdef MPEG_SUPPORT
case SV_MPEG_DECODE:
case SV_MPEG2_DECODE:
/*
** MPEG multibuffer size = 3 pictures*(1Y + 1/4 U + 1/4 V)*imagesize
*/
if (IsYUV422Sep(SvGetParamInt(Svh, SV_PARAM_FINALFORMAT)) ||
IsYUV422Packed(SvGetParamInt(Svh, SV_PARAM_FINALFORMAT)))
*MinSize = 3 * pixels * lines * 2; /* 4:2:2 */
else
*MinSize = 3 * (pixels * lines * 3)/2; /* 4:1:1 */
break;
#endif /* MPEG_SUPPORT */
#ifdef H261_SUPPORT
case SV_H261_DECODE:
*MinSize = 3 * (pixels * lines * 3)/2; /* 4:1:1 */
break;
#endif /* H261_SUPPORT */
#ifdef H263_SUPPORT
case SV_H263_DECODE:
*MinSize = 3 * (pixels * lines * 3)/2; /* 4:1:1 */
break;
#endif /* H263_SUPPORT */
default:
return(SvErrorUnrecognizedFormat);
}
return(NoErrors);
}
/*
** Name: SvDecompressQuery
** Purpose: Determine if Codec can decompress desired format
**
** Args: Svh = handle to software codec's Info structure.
** ImgIn = Pointer to BITMAPINFOHEADER structure describing format
** ImgOut = Pointer to BITMAPINFOHEADER structure describing format
*/
SvStatus_t SvDecompressQuery (SvHandle_t Svh, BITMAPINFOHEADER *ImgIn,
BITMAPINFOHEADER *ImgOut)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
if (!Info)
return(SvErrorCodecHandle);
if (!ImgIn && !ImgOut)
return(SvErrorBadPointer);
if (!IsSupported(_SvDecompressionSupport,
ImgIn ? ImgIn->biCompression : -1,
ImgIn ? ImgIn->biBitCount : -1,
ImgOut ? ImgOut->biCompression : -1,
ImgOut ? ImgOut->biBitCount : -1))
return(SvErrorUnrecognizedFormat);
if (ImgOut) /* Query output format */
{
/*
** XXX - check to see if the # of output lines/# of output
** pixels/line are a multiple of 8. If not can't decompress
** Note: This is an artifical restriction since the JPEG
** bitream will always be a multiple of 8x8, so we
** should have no problems decoding, only on the
** output will be have to add an extra copy operation
** XXX - will address/remove this restriction in the
** later release (VB)
*/
if (ImgOut->biWidth <= 0 || ImgOut->biHeight == 0)
return(SvErrorBadImageSize);
switch (Info->mode)
{
#ifdef JPEG_SUPPORT
case SV_JPEG_DECODE: /* 8x8 restriction */
if ((ImgOut->biWidth%8) || (ImgOut->biHeight%8))
return(SvErrorBadImageSize);
break;
#endif /* JPEG_SUPPORT */
#ifdef MPEG_SUPPORT
case SV_MPEG_DECODE:
case SV_MPEG2_DECODE:
/* MPEG 16x16 - because of Software Renderer YUV limitation */
if ((ImgOut->biWidth%16) || (ImgOut->biHeight%16))
return(SvErrorBadImageSize);
/* Reject requests to scale during decompression - renderer's job */
if (ImgIn && ImgOut &&
(ImgIn->biWidth != ImgOut->biWidth) ||
(abs(ImgIn->biHeight) != abs(ImgOut->biHeight)))
return (SvErrorBadImageSize);
break;
#endif /* MPEG_SUPPORT */
#ifdef H261_SUPPORT
case SV_H261_DECODE:
/* H261 16x16 - because of Software Renderer YUV limitation */
if ((ImgOut->biWidth%16) || (ImgOut->biHeight%16))
return(SvErrorBadImageSize);
if ((ImgOut->biWidth!=CIF_WIDTH && ImgOut->biWidth!=QCIF_WIDTH) ||
(abs(ImgOut->biHeight)!=CIF_HEIGHT && abs(ImgOut->biHeight)!=QCIF_HEIGHT))
return (SvErrorBadImageSize);
/* Reject requests to scale during decompression - renderer's job */
if (ImgIn && ImgOut &&
(ImgIn->biWidth != ImgOut->biWidth) ||
(abs(ImgIn->biHeight) != abs(ImgOut->biHeight)))
return (SvErrorBadImageSize);
break;
#endif /* H261_SUPPORT */
default:
break;
}
if (ImgOut->biCompression == BI_BITFIELDS &&
ValidateBI_BITFIELDS(ImgOut) == InvalidBI_BITFIELDS)
return (SvErrorUnrecognizedFormat);
}
if (ImgIn) /* Query input format also */
{
if (ImgIn->biWidth <= 0 || ImgIn->biHeight == 0)
return(SvErrorBadImageSize);
}
return(NoErrors);
}
/*
** Name: SvDecompress
** Purpose: Decompress a frame CompData -> YUV or RGB
**
** Args: Svh = handle to software codec's Info structure.
** Data = For JPEG points to compressed data (INPUT)
** For MPEG & H261, points to MultiBuf
** MaxDataSize = Length of Data buffer
** Image = buffer for decompressed data (OUTPUT)
** MaxImageSize = Size of output image buffer
**
*/
SvStatus_t SvDecompress(SvHandle_t Svh, u_char *Data, int MaxDataSize,
u_char *Image, int MaxImageSize)
{
int stat=NoErrors, UsedQ=FALSE, ImageSize;
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
u_char *YData=NULL, *CbData=NULL, *CrData=NULL;
int pixels, lines;
SvCallbackInfo_t CB;
u_char *ReturnImage=NULL;
_SlibDebug(_VERBOSE_, printf("SvDecompress() In\n") );
if (!Info)
return(SvErrorCodecHandle);
if (!Info->started)
return(SvErrorDcmpNotStarted);
if (!Data && !Info->BSIn)
return(SvErrorBadPointer);
/*
** If no image buffer is supplied, see if the Image Queue
** has any. If not do a callback to get a buffer.
*/
if (Image == NULL && Info->ImageQ)
{
if (ScBufQueueGetNum(Info->ImageQ))
{
ScBufQueueGetHead(Info->ImageQ, &Image, &MaxImageSize);
ScBufQueueRemove(Info->ImageQ);
UsedQ = TRUE;
_SlibDebug(_VERBOSE_, printf("SvDecompress() Got Image %p from Q\n",
Image) );
}
else if (Info->CallbackFunction)
{
CB.Message = CB_END_BUFFERS;
CB.Data = NULL;
CB.DataSize = 0;
CB.DataUsed = 0;
CB.DataType = CB_DATA_IMAGE;
CB.UserData = Info->BSIn?Info->BSIn->UserData:NULL;
CB.Action = CB_ACTION_CONTINUE;
_SlibDebug(_VERBOSE_,
printf("SvDecompress() Calling callback for Image\n") );
(*(Info->CallbackFunction))(Svh, &CB, NULL);
if (CB.Action == CB_ACTION_END)
{
_SlibDebug(_DEBUG_,
printf("SvDecompress() CB.Action = CB_ACTION_END\n") );
return(SvErrorClientEnd);
}
else if (ScBufQueueGetNum(Info->ImageQ))
{
ScBufQueueGetHead(Info->ImageQ, &Image, &MaxImageSize);
ScBufQueueRemove(Info->ImageQ);
UsedQ = TRUE;
_SlibDebug(_VERBOSE_,
printf("SvDecompress() Got Image %p from Q\n", Image) );
}
else
return(SvErrorNoImageBuffer);
}
}
if (!Image)
return(SvErrorNoImageBuffer);
ImageSize=MaxImageSize;
pixels = Info->OutputFormat.biWidth;
lines = Info->OutputFormat.biHeight;
if (lines<0) lines=-lines;
/*
** Decompress an image
*/
switch (Info->mode)
{
#ifdef MPEG_SUPPORT
case SV_MPEG_DECODE:
case SV_MPEG2_DECODE:
{
SvMpegDecompressInfo_t *MDInfo;
_SlibDebug(_DEBUG_, printf("SvDecompress() SV_MPEG_DECODE\n") );
if (!(MDInfo = Info->mdcmp))
return(SvErrorBadPointer);
if (!MDInfo->DecompressStarted)
return(SvErrorDcmpNotStarted);
if (MaxDataSize < MDInfo->finalbufsize)
return(SvErrorSmallBuffer);
if (!Data)
return(SvErrorBadPointer);
stat = sv_MpegDecompressFrame(Info, Data, &ReturnImage);
RETURN_ON_ERROR(stat);
/*
** Because the ReturnImage is a pointer into Data
** we need to copy it (do a format conversion if necessary).
*/
switch (Info->OutputFormat.biCompression)
{
case BI_YU12SEP:
/* native format is 4:1:1 planar, just copy */
ImageSize=(3 * lines * pixels)/2;
if (ImageSize > MaxImageSize)
return(SvErrorSmallBuffer);
memcpy(Image, ReturnImage, ImageSize);
break;
case BI_DECYUVDIB:
case BI_YUY2:
case BI_S422: /* 4:1:1 planar -> 4:2:2 interleaved */
ImageSize=(3 * lines * pixels)/2;
if (ImageSize > MaxImageSize)
return(SvErrorSmallBuffer);
ScSepYUVto422i(Image, Image+(lines*pixels),
Image+(lines*pixels*5)/4,
ReturnImage, pixels, lines);
break;
default: /* 4:1:1 planar -> RGB */
if (Info->OutputFormat.biCompression==BI_DECXIMAGEDIB)
ImageSize=lines*pixels *
(Info->OutputFormat.biBitCount==24 ? 4 : 1);
else
ImageSize=lines*pixels * (Info->OutputFormat.biBitCount/8);
if (ImageSize > MaxImageSize)
return(SvErrorSmallBuffer);
YData = ReturnImage;
CbData = YData + (pixels * lines);
CrData = CbData + (pixels * lines)/4;
ScYuv411ToRgb(&Info->OutputFormat, YData, CbData, CrData,
Image, pixels, lines, pixels);
break;
}
}
break;
#endif /* MPEG_SUPPORT */
#ifdef H261_SUPPORT
case SV_H261_DECODE:
{
SvH261Info_t *H261 = Info->h261;
_SlibDebug(_DEBUG_, printf("SvDecompress() SV_H261_DECODE\n") );
if (!H261)
return(SvErrorBadPointer);
if (!Data)
return(SvErrorBadPointer);
_SlibDebug(_DEBUG_, printf("sv_DecompressH261(Data=%p)\n",Data) );
stat=svH261Decompress(Info, Data, &ReturnImage);
if (stat==NoErrors)
{
/*
** Because the ReturnImage is a pointer into Data
** we need to copy it (do a format conversion if necessary).
*/
switch (Info->OutputFormat.biCompression)
{
case BI_YU12SEP:
/* native format is 4:1:1 planar, just copy */
ImageSize=(3 * lines * pixels)/2;
if (ImageSize > MaxImageSize)
return(SvErrorSmallBuffer);
memcpy(Image, ReturnImage, ImageSize);
break;
case BI_DECYUVDIB:
case BI_YUY2:
case BI_S422:
/* 4:1:1 planar -> 4:2:2 interleaved */
ImageSize=(3 * lines * pixels)/2;
if (ImageSize > MaxImageSize)
return(SvErrorSmallBuffer);
ScSepYUVto422i(Image, Image+(lines*pixels),
Image+(lines*pixels*5)/4,
ReturnImage, pixels, lines);
break;
default:
if (Info->OutputFormat.biCompression==BI_DECXIMAGEDIB)
ImageSize=lines*pixels *
(Info->OutputFormat.biBitCount==24 ? 4 : 1);
else
ImageSize=lines*pixels * (Info->OutputFormat.biBitCount/8);
if (ImageSize > MaxImageSize)
return(SvErrorSmallBuffer);
YData = ReturnImage;
CbData = YData + (pixels * lines * sizeof(u_char));
CrData = CbData + ((pixels * lines * sizeof(u_char))/4);
ScYuv411ToRgb(&Info->OutputFormat, YData, CbData, CrData,
Image, pixels, lines, pixels);
break;
}
}
else
{
ImageSize=0;
if (Info->CallbackFunction)
{
CB.Message = CB_SEQ_END;
CB.Data = NULL;
CB.DataSize = 0;
CB.DataType = CB_DATA_NONE;
CB.UserData = Info->BSIn?Info->BSIn->UserData:NULL;
CB.Action = CB_ACTION_CONTINUE;
(*Info->CallbackFunction)(Svh, &CB, NULL);
_SlibDebug(_DEBUG_,
printf("H261 Callback: CB_SEQ_END Data = 0x%x Action = %d\n",
CB.Data, CB.Action) );
if (CB.Action == CB_ACTION_END)
return (ScErrorClientEnd);
}
}
}
break;
#endif /* H261_SUPPORT */
#ifdef H263_SUPPORT
case SV_H263_DECODE:
{
SvH263DecompressInfo_t *H263Info = Info->h263dcmp;
_SlibDebug(_DEBUG_, printf("SvDecompress() SV_H261_DECODE\n") );
if (!H263Info)
return(SvErrorBadPointer);
_SlibDebug(_DEBUG_, printf("svH263Decompress(Data=%p)\n",Data) );
stat=svH263Decompress(Info, &ReturnImage);
if (stat==NoErrors)
{
/*
** Because the ReturnImage is a pointer into Data
** we need to copy it (do a format conversion if necessary).
*/
switch (Info->OutputFormat.biCompression)
{
case BI_YU12SEP:
/* native format is 4:1:1 planar, just copy */
ImageSize=(3 * lines * pixels)/2;
if (ImageSize > MaxImageSize)
return(SvErrorSmallBuffer);
memcpy(Image, ReturnImage, ImageSize);
break;
case BI_DECYUVDIB:
case BI_YUY2:
case BI_S422:
/* 4:1:1 planar -> 4:2:2 interleaved */
ImageSize=(3 * lines * pixels)/2;
if (ImageSize > MaxImageSize)
return(SvErrorSmallBuffer);
ScSepYUVto422i(Image, Image+(lines*pixels),
Image+(lines*pixels*5)/4,
ReturnImage, pixels, lines);
break;
default:
if (Info->OutputFormat.biCompression==BI_DECXIMAGEDIB)
ImageSize=lines*pixels *
(Info->OutputFormat.biBitCount==24 ? 4 : 1);
else
ImageSize=lines*pixels * (Info->OutputFormat.biBitCount/8);
if (ImageSize > MaxImageSize)
return(SvErrorSmallBuffer);
YData = ReturnImage;
CbData = YData + (pixels * lines * sizeof(u_char));
CrData = CbData + ((pixels * lines * sizeof(u_char))/4);
ScYuv411ToRgb(&Info->OutputFormat, YData, CbData, CrData,
Image, pixels, lines, pixels);
break;
}
}
else
{
ImageSize=0;
if (Info->CallbackFunction)
{
CB.Message = CB_SEQ_END;
CB.Data = NULL;
CB.DataSize = 0;
CB.DataType = CB_DATA_NONE;
CB.UserData = Info->BSIn?Info->BSIn->UserData:NULL;
CB.Action = CB_ACTION_CONTINUE;
(*Info->CallbackFunction)(Svh, &CB, NULL);
_SlibDebug(_DEBUG_,
printf("H263 Callback: CB_SEQ_END Data = 0x%x Action = %d\n",
CB.Data, CB.Action) );
if (CB.Action == CB_ACTION_END)
return (ScErrorClientEnd);
}
}
}
break;
#endif /* H263_SUPPORT */
#ifdef JPEG_SUPPORT
case SV_JPEG_DECODE:
{
SvJpegDecompressInfo_t *DInfo;
register int i;
JPEGINFOHEADER *jpegbm;
int maxMcu;
EXBMINFOHEADER * exbi;
_SlibDebug(_DEBUG_, printf("SvDecompress() SV_JPEG_DECODE\n") );
if (!(DInfo = Info->jdcmp))
return(SvErrorBadPointer);
exbi = (EXBMINFOHEADER *)&Info->InputFormat;
jpegbm = (JPEGINFOHEADER *)(
(unsigned long)exbi + exbi->biExtDataOffset);
/*
** In case the application forgot to call SvDecompressBegin().
*/
if (!DInfo->DecompressStarted)
return(SvErrorDcmpNotStarted);
/*
** If desired output is not separate YUV components, we have to
** convert from Sep. YUV to desired format. Create intermediate image.
*/
_SlibDebug(_DEBUG_, printf ("JPEGBitsPerSample %d \n",
jpegbm->JPEGBitsPerSample) );
if (lines < 0) lines = -lines;
_SlibDebug(_DEBUG_,
printf ("JPEG_RGB : %d - ", JPEG_RGB);
if (jpegbm->JPEGColorSpaceID == JPEG_RGB)
printf ("Color Space is RGB \n");
else
printf ("Color Space is %d \n", jpegbm->JPEGColorSpaceID) );
if (!IsYUV422Sep(Info->OutputFormat.biCompression) &&
!IsYUV411Sep(Info->OutputFormat.biCompression) &&
Info->OutputFormat.biCompression != BI_DECGRAYDIB)
{
/*
** should be done only once for each instance of the CODEC.
** - Note: this forces us to check the size parameters (pixels &
** lines) for each image to be decompressed. Should we
** support sequences that do not have constant frame sizes?
*/
if (!DInfo->TempImage) {
DInfo->TempImage = (u_char *)ScPaMalloc (3 * pixels * lines);
if (DInfo->TempImage == NULL)
return(SvErrorMemory);
}
YData = DInfo->TempImage;
CbData = YData + (pixels * lines * sizeof(u_char));
CrData = CbData + (pixels * lines * sizeof(u_char));
}
else {
/*
** For YUV Planar formats, no need to translate.
** Get pointers to individual components.
*/
_SlibDebug(_DEBUG_, printf ("sv_GetYUVComponentPointers\n") );
stat = sv_GetYUVComponentPointers(Info->OutputFormat.biCompression,
pixels, lines, Image, MaxImageSize,
&YData, &CbData, &CrData);
RETURN_ON_ERROR (stat);
}
_SlibDebug(_DEBUG_, printf ("sv_ParseFrame\n") );
stat = sv_ParseFrame (Data, MaxDataSize, Info);
RETURN_ON_ERROR (stat);
/*
** Fill Info structure with video-specific data on first frame
*/
if (!DInfo->InfoFilled) {
_SlibDebug(_DEBUG_, printf ("sv_InitJpegDecoder\n") );
stat = sv_InitJpegDecoder (Info);
RETURN_ON_ERROR (stat);
DInfo->InfoFilled = 1;
/*
** Error checking:
** make the assumption that for MJPEG we need to check for
** valid subsampling only once at the start of the seqence
*/
_SlibDebug(_DEBUG_, printf ("sv_CheckChroma\n") );
stat = sv_CheckChroma(Info);
RETURN_ON_ERROR (stat);
}
/*
** Decompress everything into MCU's
*/
if (!DInfo->ReInit) /* Reset the JPEG compressor */
sv_ReInitJpegDecoder (Info);
maxMcu = DInfo->MCUsPerRow * DInfo->MCUrowsInScan;
if (DInfo->ReInit)
DInfo->ReInit = 0;
DInfo->CurrBlockNumber = 0;
/*
** Create the BlockPtr array for the output buffers
*/
if ((YData != DInfo->Old_YData) ||
(CbData != DInfo->Old_CbData) ||
(CrData != DInfo->Old_CrData))
{
DInfo->Old_YData =YData;
DInfo->Old_CbData=CbData;
DInfo->Old_CrData=CrData;
stat = sv_MakeDecoderBlkTable (Info);
RETURN_ON_ERROR (stat);
}
CB.Message = CB_PROCESSING;
for (i = 0; i < maxMcu; i++) {
#if 0
if ((Info->CallbackFunction) && ((i % MCU_CALLBACK_COUNT) == 0)) {
(*Info->CallbackFunction)(Svh, &CB, &PictureInfo);
if (CB.Action == CB_ACTION_END)
return(SvErrorClientEnd);
}
#endif
_SlibDebug(_DEBUG_, printf ("sv_DecodeJpeg\n") );
stat = sv_DecodeJpeg (Info);
RETURN_ON_ERROR (stat);
}
#if 0
/*
** Check for multiple scans in the JPEG file
** - we do not support multiple scans
*/
if (sv_ParseScanHeader (Info) != SvErrorEOI)
_SlibDebug(_DEBUG_ || _WARN_ || _VERBOSE_,
printf(" *** Warning ***, Multiple Scans detected, unsupported\n") );
#endif
if (DInfo->compinfo[0].Vsf==2) /* 4:1:1->4:2:2 */
{
if (IsYUV422Packed(Info->OutputFormat.biCompression))
ScConvert411sTo422i_C(YData, CbData, CrData, Image,
pixels, lines);
else if IsYUV422Sep(Info->OutputFormat.biCompression)
ScConvert411sTo422s_C(YData, CbData, CrData, Image,
pixels, lines);
else if IsYUV411Sep(Info->OutputFormat.biCompression)
{
if (YData!=Image)
memcpy(Image, YData, pixels*lines);
memcpy(Image+pixels*lines, CbData, (pixels*lines)/4);
memcpy(Image+(pixels*lines*5)/4, CrData, (pixels*lines)/4);
}
else
{
ScConvert411sTo422s_C(YData, CbData, CrData, YData,
pixels, lines);
ScConvertSepYUVToOther(&Info->InputFormat, &Info->OutputFormat,
Image, YData, CbData, CrData);
}
}
else if (!IsYUV422Sep(Info->OutputFormat.biCompression) &&
!IsYUV411Sep(Info->OutputFormat.biCompression) &&
Info->OutputFormat.biCompression != BI_DECGRAYDIB)
ScConvertSepYUVToOther(&Info->InputFormat, &Info->OutputFormat,
Image, YData, CbData, CrData);
}
break; /* SV_JPEG_DECODE */
#endif /* JPEG_SUPPORT */
#ifdef HUFF_SUPPORT
case SV_HUFF_DECODE:
{
SvHuffInfo_t *HInfo;
_SlibDebug(_DEBUG_, printf("SvDecompress() SV_HUFF_DECODE\n") );
if (!(HInfo = Info->huff))
return(SvErrorBadPointer);
if (!HInfo->DecompressStarted)
return(SvErrorDcmpNotStarted);
stat = sv_HuffDecodeFrame(Info, Image);
RETURN_ON_ERROR(stat);
}
break;
#endif /* HUFF_SUPPORT */
default:
return(SvErrorCodecType);
}
Info->NumOperations++;
if (Info->CallbackFunction)
{
if (ImageSize>0)
{
CB.Message = CB_FRAME_READY;
CB.Data = Image;
CB.DataSize = MaxImageSize;
CB.DataUsed = ImageSize;
CB.DataType = CB_DATA_IMAGE;
CB.UserData = Info->BSIn?Info->BSIn->UserData:NULL;
CB.TimeStamp = 0;
CB.Flags = 0;
CB.Value = 0;
CB.Format = (void *)&Info->OutputFormat;
CB.Action = CB_ACTION_CONTINUE;
(*(Info->CallbackFunction))(Svh, &CB, NULL);
_SlibDebug(_DEBUG_,
printf("Decompress Callback: CB_FRAME_READY Addr=0x%x, Action=%d\n",
CB.Data, CB.Action) );
if (CB.Action == CB_ACTION_END)
return(SvErrorClientEnd);
}
/*
** If an Image buffer was taken from the queue, do a callback
** to let the client free or re-use the buffer.
*/
if (UsedQ)
{
CB.Message = CB_RELEASE_BUFFER;
CB.Data = Image;
CB.DataSize = MaxImageSize;
CB.DataUsed = ImageSize;
CB.DataType = CB_DATA_IMAGE;
CB.UserData = Info->BSIn?Info->BSIn->UserData:NULL;
CB.Action = CB_ACTION_CONTINUE;
(*(Info->CallbackFunction))(Svh, &CB, NULL);
_SlibDebug(_DEBUG_,
printf("Decompress Callback: RELEASE_BUFFER Addr=0x%x, Action=%d\n",
CB.Data, CB.Action) );
if (CB.Action == CB_ACTION_END)
return(SvErrorClientEnd);
}
}
_SlibDebug(_DEBUG_, printf("SvDecompress() Out\n") );
return(stat);
}
/*
** Name: SvDecompressEnd
** Purpose: Terminate the Decompression Codec. Call after all calls to
** SvDecompress are done.
**
** Args: Svh = handle to software codec's Info structure.
*/
SvStatus_t SvDecompressEnd (SvHandle_t Svh)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
SvCallbackInfo_t CB;
_SlibDebug(_DEBUG_, printf("SvDecompressEnd()\n") );
if (!Info)
return(SvErrorCodecHandle);
if (!Info->started)
return(SvErrorDcmpNotStarted);
switch (Info->mode)
{
#ifdef JPEG_SUPPORT
case SV_JPEG_DECODE:
Info->jdcmp->DecompressStarted = FALSE;
break;
#endif /* JPEG_SUPPORT */
#ifdef MPEG_SUPPORT
case SV_MPEG_DECODE:
case SV_MPEG2_DECODE:
Info->mdcmp->DecompressStarted = FALSE;
Info->mdcmp->PicturePositioned = FALSE;
Info->mdcmp->lastI = -1;
Info->mdcmp->lastP = -1;
Info->mdcmp->N = 12;
Info->mdcmp->M = 3;
Info->mdcmp->framenum = 0;
break;
#endif /* MPEG_SUPPORT */
#ifdef H261_SUPPORT
case SV_H261_DECODE:
{
int status=svH261DecompressFree(Svh);
RETURN_ON_ERROR(status);
}
break;
#endif /* H261_SUPPORT */
#ifdef H263_SUPPORT
case SV_H263_DECODE:
{
int status=svH263FreeDecompressor(Info);
RETURN_ON_ERROR(status);
}
#endif /* H263_SUPPORT */
#ifdef HUFF_SUPPORT
case SV_HUFF_DECODE:
/*
{
int status=sv_HuffDecompressEnd(Svh);
RETURN_ON_ERROR(status);
}
*/
break;
#endif /* HUFF_SUPPORT */
}
/* Release any Image Buffers in the queue */
if (Info->ImageQ)
{
int datasize;
_SlibDebug(_VERBOSE_, printf("Info->ImageQ exists\n") );
while (ScBufQueueGetNum(Info->ImageQ))
{
_SlibDebug(_VERBOSE_, printf("Removing from ImageQ\n") );
ScBufQueueGetHead(Info->ImageQ, &CB.Data, &datasize);
ScBufQueueRemove(Info->ImageQ);
if (Info->CallbackFunction && CB.Data)
{
CB.Message = CB_RELEASE_BUFFER;
CB.DataSize = datasize;
CB.DataUsed = 0;
CB.DataType = CB_DATA_IMAGE;
CB.UserData = Info->BSIn?Info->BSIn->UserData:NULL;
CB.Action = CB_ACTION_CONTINUE;
(*(Info->CallbackFunction))(Svh, &CB, NULL);
_SlibDebug(_DEBUG_,
printf("SvDecompressEnd: RELEASE_BUFFER. Data = 0x%x, Action = %d\n",
CB.Data, CB.Action) );
}
}
}
if (Info->BSIn)
ScBSFlush(Info->BSIn); /* flush out any remaining compressed buffers */
if (Info->CallbackFunction)
{
CB.Message = CB_CODEC_DONE;
CB.Data = NULL;
CB.DataSize = 0;
CB.DataUsed = 0;
CB.DataType = CB_DATA_NONE;
CB.UserData = Info->BSIn?Info->BSIn->UserData:NULL;
CB.TimeStamp = 0;
CB.Flags = 0;
CB.Value = 0;
CB.Format = NULL;
CB.Action = CB_ACTION_CONTINUE;
(*Info->CallbackFunction)(Svh, &CB, NULL);
_SlibDebug(_DEBUG_,
printf("SvDecompressEnd Callback: CB_CODEC_DONE Action = %d\n",
CB.Action) );
if (CB.Action == CB_ACTION_END)
return (ScErrorClientEnd);
}
Info->started=FALSE;
return(NoErrors);
}
/*
** Name: SvSetDataSource
** Purpose: Set the data source used by the MPEG or H261 bitstream parsing code
** to either the Buffer Queue or File input. The default is
** to use the Buffer Queue where data buffers are added by calling
** SvAddBuffer. When using file IO, the data is read from a file
** descriptor into a buffer supplied by the user.
**
** Args: Svh = handle to software codec's Info structure.
** Source = SV_USE_BUFFER_QUEUE or SV_USE_FILE
** Fd = File descriptor to use if Source = SV_USE_FILE
** Buf = Pointer to buffer to use if Source = SV_USE_FILE
** BufSize= Size of buffer when Source = SV_USE_FILE
*/
SvStatus_t SvSetDataSource (SvHandle_t Svh, int Source, int Fd,
void *Buffer_UserData, int BufSize)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
int stat=NoErrors;
if (!Info)
return(SvErrorCodecHandle);
if (Info->mode!=SV_MPEG_DECODE && Info->mode!=SV_MPEG2_DECODE
&& Info->mode!=SV_H261_DECODE && Info->mode!=SV_H263_DECODE
&& Info->mode!=SV_HUFF_DECODE)
return(SvErrorCodecType);
if (Info->BSIn)
{
ScBSDestroy(Info->BSIn);
Info->BSIn=NULL;
}
switch (Source)
{
case SV_USE_BUFFER:
_SlibDebug(_DEBUG_, printf("SvSetDataSource(SV_USE_BUFFER)\n") );
stat=ScBSCreateFromBuffer(&Info->BSIn, Buffer_UserData, BufSize);
break;
case SV_USE_BUFFER_QUEUE:
_SlibDebug(_DEBUG_, printf("SvSetDataSource(SV_USE_BUFFER_QUEUE)\n") );
stat=ScBSCreateFromBufferQueue(&Info->BSIn, Svh,
CB_DATA_COMPRESSED,
Info->BufQ,
(int (*)(ScHandle_t, ScCallbackInfo_t *, void *))Info->CallbackFunction,
(void *)Buffer_UserData);
break;
case SV_USE_FILE:
_SlibDebug(_DEBUG_, printf("SvSetDataSource(SV_USE_FILE)\n") );
stat=ScBSCreateFromFile(&Info->BSIn, Fd, Buffer_UserData, BufSize);
break;
default:
stat=SvErrorBadArgument;
}
return(stat);
}
/*
** Name: SvSetDataDestination
** Purpose: Set the data destination used by the MPEG or H261 bitstream
** writing code
** to either the Buffer Queue or File input. The default is
** to use the Buffer Queue where data buffers are added by calling
** SvAddBuffer. When using file IO, the data is read from a file
** descriptor into a buffer supplied by the user.
**
** Args: Svh = handle to software codec's Info structure.
** Source = SV_USE_BUFFER_QUEUE or SV_USE_FILE
** Fd = File descriptor to use if Source = SV_USE_FILE
** Buf = Pointer to buffer to use if Source = SV_USE_FILE
** BufSize= Size of buffer when Source = SV_USE_FILE
*/
SvStatus_t SvSetDataDestination(SvHandle_t Svh, int Dest, int Fd,
void *Buffer_UserData, int BufSize)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
int stat=NoErrors;
if (!Info)
return(SvErrorCodecHandle);
if (Info->mode != SV_H261_ENCODE && Info->mode != SV_H263_ENCODE &&
Info->mode != SV_MPEG_ENCODE &&
Info->mode != SV_MPEG2_ENCODE && Info->mode != SV_HUFF_ENCODE)
return(SvErrorCodecType);
if (Info->BSOut)
{
ScBSDestroy(Info->BSOut);
Info->BSOut=NULL;
}
switch (Dest)
{
case SV_USE_BUFFER:
_SlibDebug(_DEBUG_, printf("SvSetDataDestination(SV_USE_BUFFER)\n") );
stat=ScBSCreateFromBuffer(&Info->BSOut, Buffer_UserData, BufSize);
break;
case SV_USE_BUFFER_QUEUE:
_SlibDebug(_DEBUG_,
printf("SvSetDataDestination(SV_USE_BUFFER_QUEUE)\n") );
stat=ScBSCreateFromBufferQueue(&Info->BSOut, Svh,
CB_DATA_COMPRESSED, Info->BufQ,
(int (*)(ScHandle_t, ScCallbackInfo_t *, void *))Info->CallbackFunction,
(void *)Buffer_UserData);
break;
case SV_USE_FILE:
_SlibDebug(_DEBUG_, printf("SvSetDataDestination(SV_USE_FILE)\n") );
stat=ScBSCreateFromFile(&Info->BSOut, Fd, Buffer_UserData, BufSize);
break;
default:
stat=SvErrorBadArgument;
}
return(stat);
}
/*
** Name: SvGetDataSource
** Purpose: Returns the current input bitstream being used by
** the Codec.
** Return: NULL if there no associated bitstream
** (currently H.261 and MPEG use a bitstream)
*/
ScBitstream_t *SvGetDataSource (SvHandle_t Svh)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
if (!Info)
return(NULL);
return(Info->BSIn);
}
/*
** Name: SvGetDataDestination
** Purpose: Returns the current input bitstream being used by
** the Codec.
** Return: NULL if there no associated bitstream
** (currently H.261 and MPEG use a bitstream)
*/
ScBitstream_t *SvGetDataDestination(SvHandle_t Svh)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
if (!Info)
return(NULL);
return(Info->BSOut);
}
/*
** Name: SvGetInputBitstream
** Purpose: Returns the current input bitstream being used by
** the Codec.
** Return: NULL if there no associated bitstream
** (currently H.261 and MPEG use a bitstream)
*/
ScBitstream_t *SvGetInputBitstream (SvHandle_t Svh)
{
return(SvGetDataSource(Svh));
}
/*
** Name: SvFlush
** Purpose: Flushes out current compressed buffers.
** Return: status
*/
SvStatus_t SvFlush(SvHandle_t Svh)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
if (!Info)
return(SvErrorCodecHandle);
if (Info->BSIn)
ScBSFlush(Info->BSIn); /* flush out any remaining input compressed buffers */
if (Info->BSOut)
ScBSFlush(Info->BSOut); /* flush out any remaining output compressed buffers */
return(SvErrorNone);
}
/*
** Name: SvRegisterCallback
** Purpose: Specify the user-function that will be called during processing
** to determine if the codec should abort the frame.
** Args: Svh = handle to software codec's Info structure.
** Callback = callback function to register
**
*/
SvStatus_t SvRegisterCallback (SvHandle_t Svh,
int (*Callback)(SvHandle_t, SvCallbackInfo_t *, SvPictureInfo_t *),
void *UserData)
{
SvStatus_t stat=NoErrors;
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
_SlibDebug(_DEBUG_, printf("SvRegisterCallback()\n") );
if (!Info)
return(SvErrorCodecHandle);
if (!Callback)
return(SvErrorBadPointer);
switch (Info->mode)
{
#ifdef MPEG_SUPPORT
case SV_MPEG_DECODE:
case SV_MPEG2_DECODE:
Info->CallbackFunction = Callback;
if (Info->BSIn==NULL)
stat=SvSetDataSource(Svh, SV_USE_BUFFER_QUEUE, 0, UserData, 0);
break;
case SV_MPEG_ENCODE:
case SV_MPEG2_ENCODE:
Info->CallbackFunction = Callback;
if (Info->BSOut==NULL)
stat=SvSetDataDestination(Svh, SV_USE_BUFFER_QUEUE, 0, UserData, 0);
break;
#endif /* MPEG_SUPPORT */
#ifdef H261_SUPPORT
case SV_H261_DECODE:
Info->CallbackFunction = Callback;
if (Info->h261) /* copy callback to H261 structure */
Info->h261->CallbackFunction=Callback;
if (Info->BSIn==NULL)
stat=SvSetDataSource(Svh, SV_USE_BUFFER_QUEUE, 0, UserData, 0);
break;
case SV_H261_ENCODE:
Info->CallbackFunction = Callback;
if (Info->h261) /* copy callback to H261 structure */
Info->h261->CallbackFunction=Callback;
if (Info->BSOut==NULL)
stat=SvSetDataDestination(Svh, SV_USE_BUFFER_QUEUE, 0, UserData, 0);
break;
#endif /* H261_SUPPORT */
#ifdef H263_SUPPORT
case SV_H263_DECODE:
Info->CallbackFunction = Callback;
if (Info->BSIn==NULL)
stat=SvSetDataSource(Svh, SV_USE_BUFFER_QUEUE, 0, UserData, 0);
break;
case SV_H263_ENCODE:
Info->CallbackFunction = Callback;
if (Info->BSOut==NULL)
stat=SvSetDataDestination(Svh, SV_USE_BUFFER_QUEUE, 0, UserData, 0);
break;
#endif /* H263_SUPPORT */
#ifdef HUFF_SUPPORT
case SV_HUFF_DECODE:
Info->CallbackFunction = Callback;
if (Info->BSIn==NULL)
stat=SvSetDataSource(Svh, SV_USE_BUFFER_QUEUE, 0, UserData, 0);
break;
case SV_HUFF_ENCODE:
Info->CallbackFunction = Callback;
if (Info->BSOut==NULL)
stat=SvSetDataDestination(Svh, SV_USE_BUFFER_QUEUE, 0, UserData, 0);
break;
#endif /* HUFF_SUPPORT */
default:
return(SvErrorCodecType);
}
return(stat);
}
/*
** Name: SvAddBuffer
** Purpose: Add a buffer of MPEG bitstream data to the CODEC or add an image
** buffer to be filled by the CODEC (in streaming mode)
**
** Args: Svh = handle to software codec's Info structure.
** BufferInfo = structure describing buffer's address, type & size
*/
SvStatus_t SvAddBuffer (SvHandle_t Svh, SvCallbackInfo_t *BufferInfo)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
ScQueue_t *Q=NULL;
_SlibDebug(_DEBUG_, printf("SvAddBuffer() length=%d\n",BufferInfo->DataSize));
if (!Info)
return(SvErrorCodecHandle);
if (BufferInfo->DataType != CB_DATA_COMPRESSED &&
BufferInfo->DataType != CB_DATA_IMAGE)
return(SvErrorBadArgument);
/*
** Compressed data can only be added for MPEG and H261
*/
if (BufferInfo->DataType == CB_DATA_COMPRESSED
#ifdef MPEG_SUPPORT
&& Info->mode != SV_MPEG_DECODE
&& Info->mode != SV_MPEG2_DECODE
&& Info->mode != SV_MPEG_ENCODE
&& Info->mode != SV_MPEG2_ENCODE
#endif /* MPEG_SUPPORT */
#ifdef H261_SUPPORT
&& Info->mode != SV_H261_DECODE
&& Info->mode != SV_H261_ENCODE
#endif /* H261_SUPPORT */
#ifdef H263_SUPPORT
&& Info->mode != SV_H263_DECODE
&& Info->mode != SV_H263_ENCODE
#endif /* H263_SUPPORT */
#ifdef HUFF_SUPPORT
&& Info->mode != SV_HUFF_DECODE
&& Info->mode != SV_HUFF_ENCODE
#endif /* HUFF_SUPPORT */
)
return(SvErrorCodecType);
if (!BufferInfo->Data || (BufferInfo->DataSize <= 0))
return(SvErrorBadArgument);
switch (BufferInfo->DataType)
{
case CB_DATA_COMPRESSED:
_SlibDebug(_DEBUG_, printf("SvAddBuffer() COMPRESSED\n") );
if (Info->BSOut && Info->BSOut->EOI)
ScBSReset(Info->BSOut);
if (Info->BSIn && Info->BSIn->EOI)
ScBSReset(Info->BSIn);
Q = Info->BufQ;
break;
case CB_DATA_IMAGE:
_SlibDebug(_DEBUG_, printf("SvAddBuffer() IMAGE\n") );
Q = Info->ImageQ;
break;
default:
return(SvErrorBadArgument);
}
if (Q)
ScBufQueueAdd(Q, BufferInfo->Data, BufferInfo->DataSize);
else
_SlibDebug(_DEBUG_, printf("ScBufQueueAdd() no Queue\n") );
return(NoErrors);
}
/*
** Name: SvFindNextPicture
** Purpose: Find the start of the next picture in a bitstream.
** Return the picture type to the caller.
**
** Args: Svh = handle to software codec's Info structure.
** PictureInfo = Structure used to select what type of pictures to
** search for and to return information about the
** picture that is found
*/
SvStatus_t SvFindNextPicture (SvHandle_t Svh, SvPictureInfo_t *PictureInfo)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
_SlibDebug(_DEBUG_, printf("SvFindNextPicture()\n") );
if (!Info)
return(SvErrorCodecHandle);
switch (Info->mode)
{
#ifdef MPEG_SUPPORT
case SV_MPEG_DECODE:
case SV_MPEG2_DECODE:
if (!Info->mdcmp)
return(SvErrorBadPointer);
if (!Info->mdcmp->DecompressStarted)
return(SvErrorDcmpNotStarted);
{
SvStatus_t stat = sv_MpegFindNextPicture(Info, PictureInfo);
return(stat);
}
#endif /* MPEG_SUPPORT */
default:
return(SvErrorCodecType);
}
}
#ifdef MPEG_SUPPORT
/*
** Name: SvDecompressMPEG
** Purpose: Decompress the MPEG picture that starts at the current position
** of the bitstream. If the bitstream is not properly positioned
** then find the next picture.
**
** Args: Svh = handle to software codec's Info structure.
** MultiBuf = Specifies pointer to start of the Multibuffer, an area
** large enough to hold 3 decompressed images: the
** current image, the past reference image and the
** future reference image.
** MaxMultiSize = Size of the Multibuffer in bytes.
** ImagePtr = Returns a pointer to the current image. This will be
** somewhere within the Multibuffer.
*/
SvStatus_t SvDecompressMPEG (SvHandle_t Svh, u_char *MultiBuf,
int MaxMultiSize, u_char **ImagePtr)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
SvMpegDecompressInfo_t *MDInfo;
_SlibDebug(_DEBUG_, printf("SvDecompressMPEG()\n") );
if (!Info)
return(SvErrorCodecHandle);
if (!(MDInfo = Info->mdcmp))
return(SvErrorBadPointer);
if (!MDInfo->DecompressStarted)
return(SvErrorDcmpNotStarted);
return(sv_MpegDecompressFrame(Info, MultiBuf, ImagePtr));
}
#endif /* MPEG_SUPPORT */
#ifdef H261_SUPPORT
SvStatus_t SvDecompressH261 (SvHandle_t Svh, u_char *MultiBuf,
int MaxMultiSize, u_char **ImagePtr)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
SvH261Info_t *H261;
ScCallbackInfo_t CB;
SvStatus_t status;
if (!Info)
return(SvErrorCodecHandle);
if (!(H261 = Info->h261))
return(SvErrorBadPointer);
if (Info->BSIn->EOI)
return(SvErrorEndBitstream);
status = svH261Decompress(Info, MultiBuf, ImagePtr);
if (status == SvErrorEndBitstream && Info->CallbackFunction)
{
CB.Message = CB_SEQ_END;
CB.Data = NULL;
CB.DataSize = 0;
CB.DataType = CB_DATA_NONE;
CB.UserData = Info->BSIn?Info->BSIn->UserData:NULL;
CB.Action = CB_ACTION_CONTINUE;
(*Info->CallbackFunction)(Svh, &CB, NULL);
_SlibDebug(_DEBUG_,
printf("H261 Callback: CB_SEQ_END Data = 0x%x Action = %d\n",
CB.Data, CB.Action) );
if (CB.Action == CB_ACTION_END)
return (ScErrorClientEnd);
}
else if (status==NoErrors)
{
*ImagePtr = H261->Y;
if (Info->CallbackFunction)
{
CB.Message = CB_FRAME_READY;
CB.Data = *ImagePtr;
CB.DataSize = H261->PICSIZE+(H261->PICSIZE/2);
CB.DataUsed = CB.DataSize;
CB.DataType = CB_DATA_IMAGE;
CB.UserData = Info->BSIn?Info->BSIn->UserData:NULL;
CB.TimeStamp = 0;
CB.Flags = 0;
CB.Value = 0;
CB.Format = (void *)&Info->OutputFormat;
CB.Action = CB_ACTION_CONTINUE;
(*Info->CallbackFunction)(Svh, &CB, NULL);
_SlibDebug(_DEBUG_,
printf("H261 Callback: CB_FRAME_READY Data = 0x%x, Action = %d\n",
CB.Data, CB.Action) );
if (CB.Action == CB_ACTION_END)
return (ScErrorClientEnd);
}
}
return (status);
}
#endif /* H261_SUPPORT */
#ifdef JPEG_SUPPORT
/*---------------------------------------------------------------------
SLIB routines to Query and return CODEC Tables to caller
*---------------------------------------------------------------------*/
/*
** From JPEG Spec. :
** Huffman tables are specified in terms of a 16-byte list (BITS) giving
** the number of codes for each code length from 1 to 16. This is
** followed by a list of 8-bit symbol values (HUFVAL), each of which is
** assigned a Huffman code. The symbol values are placed in the list
** in order of increasing code length. Code length greater than 16-bits
** are not allowed.
*/
/*
** Name: SvSetDcmpHTables
** Purpose:
**
** Notes: Baseline process is the only supported mode:
** - uses 2 AC tables and 2 DC Tables
**
*/
SvStatus_t SvSetDcmpHTables (SvHandle_t Svh, SvHuffmanTables_t *Ht)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
int i,stat,count;
SvHt_t **htblptr;
SvHTable_t *HTab;
register int j;
if (!Info)
return(SvErrorCodecHandle);
if (!Ht)
return(SvErrorBadPointer);
for (j = 0; j < 4; j++) {
switch(j) {
case 0: htblptr = &Info->jdcmp->DcHt[0];
HTab = &Ht->DcY;
break;
case 1: htblptr = &Info->jdcmp->AcHt[0];
HTab = &Ht->AcY;
break;
case 2: htblptr = &Info->jdcmp->DcHt[1];
HTab = &Ht->DcUV;
break;
case 3: htblptr = &Info->jdcmp->AcHt[1];
HTab = &Ht->AcUV;
break;
}
if (*htblptr == NULL)
*htblptr = (SvHt_t *) ScPaMalloc(sizeof(SvHt_t));
(*htblptr)->bits[0] = 0;
count = 0;
for (i = 1; i < BITS_LENGTH; i++) {
(*htblptr)->bits[i] = (u_char)HTab->bits[i-1];
count += (*htblptr)->bits[i];
}
if (count > 256)
return(SvErrorDHTTable);
/*
** Load Huffman table:
*/
for (i = 0; i < count; i++)
(*htblptr)->value[i] = (u_char)HTab->value[i];
}
stat = sv_LoadDefaultHTable (Info);
if (stat) return(stat);
return(NoErrors);
}
/*
** Name: SvGetDcmpHTables
** Purpose:
**
*/
SvStatus_t SvGetDcmpHTables (SvHandle_t Svh, SvHuffmanTables_t *Ht)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
int i,count;
SvHt_t **htblptr;
SvHTable_t *HTab;
register int j;
if (!Info)
return (SvErrorCodecHandle);
if (!Ht)
return(SvErrorBadPointer);
for (j = 0; j < 4; j++) {
switch(j) {
case 0: htblptr = &Info->jdcmp->DcHt[0];
HTab = &Ht->DcY;
break;
case 1: htblptr = &Info->jdcmp->AcHt[0];
HTab = &Ht->AcY;
break;
case 2: htblptr = &Info->jdcmp->DcHt[1];
HTab = &Ht->DcUV;
break;
case 3: htblptr = &Info->jdcmp->AcHt[1];
HTab = &Ht->AcUV;
break;
}
if (*htblptr == NULL)
return(SvErrorHuffUndefined);
count = 0;
for (i = 1; i < BITS_LENGTH; i++) {
HTab->bits[i-1] = (int)(*htblptr)->bits[i];
count += (*htblptr)->bits[i];
}
if (count > 256)
return(SvErrorDHTTable);
/*
** Copy Huffman table:
*/
for (i = 0; i < count; i++)
HTab->value[i] = (u_int)(*htblptr)->value[i];
}
return(NoErrors);
}
/*
** Name: SvSetCompHTables
** Purpose:
**
*/
SvStatus_t SvSetCompHTables (SvHandle_t Svh, SvHuffmanTables_t *Ht)
{
return(SvErrorNotImplemented);
}
/*
** Name: SvGetCompHTables
** Purpose:
**
*/
SvStatus_t SvGetCompHTables (SvHandle_t Svh, SvHuffmanTables_t *Ht)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
SvHt_t **htblptr;
SvHTable_t *HTab;
register int i, j, count;
if (!Info)
return (SvErrorCodecHandle);
if (!Ht)
return (SvErrorBadPointer);
for (j = 0; j < 4; j++) {
switch(j) {
case 0: htblptr = &Info->jcomp->DcHt[0];
HTab = &Ht->DcY;
break;
case 1: htblptr = &Info->jcomp->AcHt[0];
HTab = &Ht->AcY;
break;
case 2: htblptr = &Info->jcomp->DcHt[1];
HTab = &Ht->DcUV;
break;
case 3: htblptr = &Info->jcomp->AcHt[1];
HTab = &Ht->AcUV;
break;
}
if (*htblptr == NULL)
return (SvErrorHuffUndefined);
/*
** Copy the "bits" array (contains number of codes of each size)
*/
count = 0;
for (i = 1; i < BITS_LENGTH; i++) {
HTab->bits[i-1] = (int)(*htblptr)->bits[i];
count += (*htblptr)->bits[i];
}
if (count > 256)
/*
** total # of Huffman code words cannot exceed 256
*/
return (SvErrorDHTTable);
/*
** Copy the "value" array (contains values associated with above codes)
*/
for (i = 0; i < count; i++)
HTab->value[i] = (u_int)(*htblptr)->value[i];
}
return(NoErrors);
}
/*
** Name: SvSetDcmpQTables
** Purpose:
**
*/
SvStatus_t SvSetDcmpQTables (SvHandle_t Svh, SvQuantTables_t *Qt)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
SvJpegDecompressInfo_t *DInfo;
if (!Info)
return(SvErrorCodecHandle);
DInfo = (SvJpegDecompressInfo_t *)Info->jdcmp;
if (!Qt)
return(SvErrorBadPointer);
if (DInfo->_SviquantTblPtrs[0] == NULL)
if ((DInfo->_SviquantTblPtrs[0] = (int *) ScAlloc(64*sizeof(int))) ==
(int *)NULL) return(SvErrorMemory);
if (DInfo->_SviquantTblPtrs[1] == NULL)
if ((DInfo->_SviquantTblPtrs[1] = (int *) ScAlloc(64*sizeof(int))) ==
(int *)NULL) return(SvErrorMemory);
bcopy (Qt->c1, DInfo->_SviquantTblPtrs[0], 64*sizeof(int));
bcopy (Qt->c2, DInfo->_SviquantTblPtrs[1], 64*sizeof(int));
bcopy (Qt->c3, DInfo->_SviquantTblPtrs[1], 64*sizeof(int));
return(NoErrors);
}
/*
** Name: SvGetDcmpQTables
** Purpose:
**
*/
SvStatus_t SvGetDcmpQTables (SvHandle_t Svh, SvQuantTables_t *Qt)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
SvJpegDecompressInfo_t *DInfo;
if (!Info)
return(SvErrorCodecHandle);
DInfo = (SvJpegDecompressInfo_t *)Info->jdcmp;
if (!Qt)
return(SvErrorBadPointer);
if (DInfo->_SviquantTblPtrs[0])
bcopy (DInfo->_SviquantTblPtrs[0], Qt->c1, 64*sizeof(int));
else
bzero (Qt->c1, 64*sizeof(int));
if (DInfo->_SviquantTblPtrs[1])
bcopy(DInfo->_SviquantTblPtrs[1], Qt->c2, 64*sizeof(int));
else
bzero(Qt->c2, 64*sizeof(int));
/*
** XXX - when the structure is changed approprately remove the
** above and do the following:
**
** if ((!Qt->c1) || (!Qt->c2) || (!Qt->c3))
** return (SvErrorBadPointer);
** bcopy ((u_char *)DInfo->Qt, (u_char *)Qt, sizeof(SvQuantTables_t));
*/
return(NoErrors);
}
/*
** Name: SvSetCompQTables
** Purpose: Allows user to set quantization tables directly
**
*/
SvStatus_t SvSetCompQTables (SvHandle_t Svh, SvQuantTables_t *Qt)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
if (!Info)
return (SvErrorCodecHandle);
if (!Info->jcomp->CompressStarted)
return (SvErrorCompNotStarted);
if (!Qt)
return (SvErrorBadPointer);
if ((!Qt->c1) || (!Qt->c2) || (!Qt->c3))
return (SvErrorBadPointer);
/*
** Convert SvQuantTables_t structure to internal SvQt_t structure.
*/
sv_ConvertQTable(Info, Qt);
return(NoErrors);
}
#endif /* JPEG_SUPPORT */
/*---------------------------------------------------------------------
SLIB Compression Routines
*---------------------------------------------------------------------*/
/*
** Name: SvCompressBegin
** Purpose: Initialize the Compression Codec. Call after SvOpenCodec &
** before SvCompress (SvCompress will call SvCompressBegin
** on first call to codec after open if user doesn't call it)
**
** Args: Svh = handle to software codec's Info structure.
** ImgIn = format of input (uncompressed) image
** ImgOut = format of output (compressed) image
*/
SvStatus_t SvCompressBegin (SvHandle_t Svh, BITMAPINFOHEADER *ImgIn,
BITMAPINFOHEADER *ImgOut)
{
int stat;
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
/*
** Sanity checks:
*/
if (!Info)
return (SvErrorCodecHandle);
if (!ImgIn || !ImgOut)
return (SvErrorBadPointer);
stat=SvCompressQuery (Svh, ImgIn, ImgOut);
RETURN_ON_ERROR(stat);
/*
** Save input & output formats for SvDecompress
*/
sv_copy_bmh(ImgIn, &Info->InputFormat);
sv_copy_bmh(ImgOut, &Info->OutputFormat);
Info->Width = Info->OutputFormat.biWidth;
Info->Height = abs(Info->OutputFormat.biHeight);
/*
** Initialize - the encoder structure
** Load - the default Huffman Tables
** Make - the internal Block Table
*/
switch (Info->mode)
{
#ifdef JPEG_SUPPORT
case SV_JPEG_ENCODE:
stat = sv_InitJpegEncoder (Info);
RETURN_ON_ERROR (stat);
/*
** Set up the default quantization matrices:
*/
stat = SvSetQuality (Svh, DEFAULT_Q_FACTOR);
Info->jcomp->CompressStarted = TRUE;
Info->jcomp->Quality = DEFAULT_Q_FACTOR;
RETURN_ON_ERROR (stat);
break;
#endif /* JPEG_SUPPORT */
#ifdef H261_SUPPORT
case SV_H261_ENCODE:
stat = svH261CompressInit(Info);
RETURN_ON_ERROR (stat);
break;
#endif /* H261_SUPPORT */
#ifdef H263_SUPPORT
case SV_H263_ENCODE:
stat = svH263InitCompressor(Info);
RETURN_ON_ERROR (stat);
break;
#endif /* MPEG_SUPPORT */
#ifdef MPEG_SUPPORT
case SV_MPEG_ENCODE:
case SV_MPEG2_ENCODE:
stat = sv_MpegInitEncoder (Info);
RETURN_ON_ERROR (stat);
sv_MpegEncoderBegin(Info);
break;
#endif /* MPEG_SUPPORT */
#ifdef HUFF_SUPPORT
case SV_HUFF_ENCODE:
stat = sv_HuffInitEncoder (Info);
RETURN_ON_ERROR (stat);
break;
#endif /* HUFF_SUPPORT */
default:
return(SvErrorCodecType);
}
return (NoErrors);
}
/*
** Name: SvCompressEnd
** Purpose: Terminate the Compression Codec. Call after all calls to
** SvCompress are done.
**
** Args: Svh = handle to software codec's Info structure.
*/
SvStatus_t SvCompressEnd (SvHandle_t Svh)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
SvCallbackInfo_t CB;
SvStatus_t status=NoErrors;
_SlibDebug(_VERBOSE_, printf("SvCompressEnd()\n") );
if (!Info)
return (SvErrorCodecHandle);
switch (Info->mode)
{
#ifdef H261_SUPPORT
case SV_H261_ENCODE:
status=svH261CompressFree(Svh);
RETURN_ON_ERROR(status)
break;
#endif /* H261_SUPPORT */
#ifdef H263_SUPPORT
case SV_H263_ENCODE:
status=svH263FreeCompressor(Svh);
RETURN_ON_ERROR(status)
break;
#endif /* H263_SUPPORT */
#ifdef MPEG_SUPPORT
case SV_MPEG_ENCODE:
case SV_MPEG2_ENCODE:
sv_MpegEncoderEnd(Info);
sv_MpegFreeEncoder(Info);
break;
#endif /* MPEG_SUPPORT */
#ifdef JPEG_SUPPORT
case SV_JPEG_ENCODE:
if (!Info->jcomp)
return (SvErrorMemory);
Info->jcomp->CompressStarted = FALSE;
break;
#endif /* JPEG_SUPPORT */
#ifdef HUFF_SUPPORT
case SV_HUFF_ENCODE:
sv_HuffFreeEncoder(Info);
break;
#endif /* HUFF_SUPPORT */
default:
break;
}
/* Release any Image Buffers in the queue */
if (Info->ImageQ)
{
int datasize;
while (ScBufQueueGetNum(Info->ImageQ))
{
ScBufQueueGetHead(Info->ImageQ, &CB.Data, &datasize);
ScBufQueueRemove(Info->ImageQ);
if (Info->CallbackFunction && CB.Data)
{
CB.Message = CB_RELEASE_BUFFER;
CB.DataSize = datasize;
CB.DataUsed = 0;
CB.DataType = CB_DATA_IMAGE;
CB.UserData = Info->BSOut?Info->BSOut->UserData:NULL;
CB.Action = CB_ACTION_CONTINUE;
(*(Info->CallbackFunction))(Svh, &CB, NULL);
_SlibDebug(_DEBUG_,
printf("SvCompressEnd: RELEASE_BUFFER. Data = 0x%X, Action = %d\n",
CB.Data, CB.Action) );
}
}
}
if (Info->BSOut)
ScBSFlush(Info->BSOut); /* flush out the last compressed data */
if (Info->CallbackFunction)
{
CB.Message = CB_CODEC_DONE;
CB.Data = NULL;
CB.DataSize = 0;
CB.DataUsed = 0;
CB.DataType = CB_DATA_NONE;
CB.UserData = Info->BSOut?Info->BSOut->UserData:NULL;
CB.TimeStamp = 0;
CB.Flags = 0;
CB.Value = 0;
CB.Format = NULL;
CB.Action = CB_ACTION_CONTINUE;
(*Info->CallbackFunction)(Svh, &CB, NULL);
_SlibDebug(_DEBUG_,
printf("SvCompressEnd Callback: CB_CODEC_DONE Action = %d\n",
CB.Action) );
if (CB.Action == CB_ACTION_END)
return (ScErrorClientEnd);
}
return (status);
}
/*
** Name: SvCompress
** Purpose:
**
*/
SvStatus_t SvCompress(SvHandle_t Svh, u_char *CompData, int MaxCompLen,
u_char *Image, int ImageSize, int *CmpBytes)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
SvCallbackInfo_t CB;
int stat=NoErrors, UsedQ=FALSE;
_SlibDebug(_DEBUG_, printf("SvCompress()\n") );
if (!Info)
return (SvErrorCodecHandle);
/*
** If no image buffer is supplied, see if the Image Queue
** has any. If not do a callback to get a buffer.
*/
if (Image == NULL && Info->ImageQ)
{
if (ScBufQueueGetNum(Info->ImageQ))
{
ScBufQueueGetHead(Info->ImageQ, &Image, &ImageSize);
ScBufQueueRemove(Info->ImageQ);
UsedQ = TRUE;
}
else if (Info->CallbackFunction)
{
CB.Message = CB_END_BUFFERS;
CB.Data = NULL;
CB.DataSize = 0;
CB.DataUsed = 0;
CB.DataType = CB_DATA_IMAGE;
CB.UserData = Info->BSOut?Info->BSOut->UserData:NULL;
CB.Action = CB_ACTION_CONTINUE;
(*(Info->CallbackFunction))(Svh, &CB, NULL);
if (CB.Action == CB_ACTION_END)
{
_SlibDebug(_DEBUG_,
printf("SvDecompress() CB.Action = CB_ACTION_END\n") );
return(SvErrorClientEnd);
}
else if (ScBufQueueGetNum(Info->ImageQ))
{
ScBufQueueGetHead(Info->ImageQ, &Image, &ImageSize);
ScBufQueueRemove(Info->ImageQ);
UsedQ = TRUE;
}
else
return(SvErrorNoImageBuffer);
}
}
if (Image == NULL)
return(SvErrorNoImageBuffer);
switch (Info->mode)
{
#ifdef H261_SUPPORT
case SV_H261_ENCODE:
stat = svH261Compress(Svh, Image);
if (CmpBytes)
*CmpBytes = (int)(Info->h261->TotalBits/8);
break;
#endif /* H261_SUPPORT */
#ifdef H263_SUPPORT
case SV_H263_ENCODE:
stat = svH263Compress(Svh, Image);
break;
#endif /* H261_SUPPORT */
#ifdef MPEG_SUPPORT
case SV_MPEG_ENCODE:
case SV_MPEG2_ENCODE:
stat = sv_MpegEncodeFrame(Svh, Image);
break;
#endif /* MPEG_SUPPORT */
#ifdef JPEG_SUPPORT
case SV_JPEG_ENCODE:
{
SvJpegCompressInfo_t *CInfo;
u_char *CompBuffer;
register int i;
int RetBytes, InLen;
CInfo = Info->jcomp;
/*
** In case the application forgot to call SvCompressBegin().
*/
if (!CInfo->CompressStarted)
return (SvErrorCompNotStarted);
if ((u_int)Image%8)
return (SvErrorNotAligned);
CompBuffer = CompData;
/*
** Start - add header information
** - needed if we want to conform to the interchange format
*/
stat = sv_AddJpegHeader (Svh, CompBuffer, MaxCompLen, &RetBytes);
RETURN_ON_ERROR (stat);
CompBuffer += RetBytes;
/*
** Separate input image directly into 8x8 blocks.
** level shift to go from signed to unsigned representation
** - since we support baseline DCT process only (i.e 8-bit
** precision) subtract raw data by 128
*/
sv_JpegExtractBlocks (Info, Image);
for (i = 0; i < CInfo->NumComponents; i++)
CInfo->lastDcVal[i] = 0;
/*
** JPEG business loop:
*/
{
register int Cid, HQid, blkN, mcuN, mbn, DcVal;
float *FQt, *FThresh, *FThreshNeg;
float *RawData;
SvRLE_t rle;
const static long Mask = 0xffL;
float DCTData[64];
register float tmp,AcVal;
CB.Message = CB_PROCESSING;
/*
** Processing within a frame is done on a MCU by MCU basis:
*/
for (blkN = 0, mcuN = 0 ; mcuN < (int) CInfo->NumMCU; mcuN++)
{
/*
** Callback user routine every now&then to see if we should abort
*/
if ((Info->CallbackFunction) && ((i % MCU_CALLBACK_COUNT) == 0))
{
SvPictureInfo_t DummyPictInfo;
(*Info->CallbackFunction)(Svh, &CB, &DummyPictInfo);
if (CB.Action == CB_ACTION_END)
return(SvErrorClientEnd);
}
/*
** Account for restart interval, emit restart marker if needed
*/
if (CInfo->restartInterval)
{
if (CInfo->restartsToGo == 0)
EmitRestart (CInfo);
CInfo->restartsToGo--;
}
/*
** Processing within an MCU is done on a block by block basis:
*/
for (mbn = 0; mbn < (int) CInfo->BlocksInMCU; mbn++, blkN++)
{
/*
** Figure out the component to which the current block belongs:
** -Due to the way input data is processed by "sv_extract_blocks"
** and under the assumption that the input is YCrCb,
** Cid is 0,0,1,2 for each block in the MCU
*/
switch (mbn) {
case 0:
case 1: Cid = 0; HQid = 0; break;
case 2: Cid = 1; HQid = 1; break;
case 3: Cid = 2; HQid = 1; break;
}
RawData = CInfo->BlkTable[blkN];
#ifndef _NO_DCT_
/*
** Discrete Cosine Transform:
** Perform the Forward DCT, take the input data from "RawData"
** and place the computed coefficients in "DCTData":
*/
ScFDCT8x8 (RawData, DCTData);
#ifndef _NO_QUANT_
/*
** Quantization:
**
** Identify the quantization tables:
*/
FQt = (float *) (CInfo->Qt[HQid])->fval;
FThresh = (float *) (CInfo->Qt[HQid])->fthresh;
FThreshNeg = (float *) (CInfo->Qt[HQid])->fthresh_neg;
/*
** Quantize the DC value first:
*/
tmp = DCTData[0] *FQt[0];
if (tmp < 0)
DcVal = (int) (tmp - 0.5);
else
DcVal = (int) (tmp + 0.5);
/*
** Go after (quantize) the AC coefficients now:
*/
for (rle.numAC = 0, i = 1; i < 64; i++)
{
AcVal = DCTData[ZagIndex[i]];
if (AcVal > FThresh[i]) {
rle.ac[rle.numAC].index = i;
rle.ac[rle.numAC++].value = (int) (AcVal * FQt[i] + 0.5);
}
else if (AcVal < FThreshNeg[i]) {
rle.ac[rle.numAC].index = i;
rle.ac[rle.numAC++].value = (int) (AcVal * FQt[i] - 0.5);
}
}
/*
** DPCM coding:
**
** Difference encoding of the DC value,
*/
rle.dc = DcVal - CInfo->lastDcVal[Cid];
CInfo->lastDcVal[Cid] = DcVal;
#ifndef _NO_HUFF_
/*
** Entropy Coding:
**
** Huffman encode the current block
*/
sv_EncodeOneBlock (&rle, CInfo->DcHt[HQid], CInfo->AcHt[HQid]);
FlushBytes(&CompBuffer);
#endif /* _NO_HUFF_ */
#endif /* _NO_QUANT_ */
#endif /* _NO_DCT_ */
}
}
}
(void ) sv_HuffEncoderTerm (&CompBuffer);
Info->OutputFormat.biSize = CompBuffer - CompData;
InLen = MaxCompLen - Info->OutputFormat.biSize;
/*
** JPEG End:
** - add trailer information to the compressed bitstream,
** - needed if we want to conform to the interchange format
*/
stat = sv_AddJpegTrailer (Svh, CompBuffer, InLen, &RetBytes);
RETURN_ON_ERROR (stat);
CompBuffer += RetBytes;
Info->OutputFormat.biSize += RetBytes;
if (CmpBytes)
*CmpBytes = CompBuffer - CompData;
}
break;
#endif /* JPEG_SUPPORT */
#ifdef HUFF_SUPPORT
case SV_HUFF_ENCODE:
stat = sv_HuffEncodeFrame(Svh, Image);
break;
#endif /* HUFF_SUPPORT */
default:
return(SvErrorCodecType);
}
Info->NumOperations++;
/*
** If an Image buffer was taken from the queue, do a callback
** to let the client free or re-use the buffer.
*/
if (Info->CallbackFunction && UsedQ)
{
CB.Message = CB_RELEASE_BUFFER;
CB.Data = Image;
CB.DataSize = ImageSize;
CB.DataUsed = ImageSize;
CB.DataType = CB_DATA_IMAGE;
CB.UserData = Info->BSOut?Info->BSOut->UserData:NULL;
CB.Action = CB_ACTION_CONTINUE;
(*(Info->CallbackFunction))(Svh, &CB, NULL);
_SlibDebug(_DEBUG_,
printf("Compress Callback: RELEASE_BUFFER Addr=0x%x, Action=%d\n",
CB.Data, CB.Action) );
if (CB.Action == CB_ACTION_END)
return(SvErrorClientEnd);
}
return (stat);
}
static SvStatus_t sv_ConvertRGBToSepComponent(u_char *Iimage,
BITMAPINFOHEADER * Bmh, u_char *comp1, u_char *comp2, u_char *comp3,
int pixels, int lines)
{
register i;
int bpp = Bmh->biBitCount;
u_int *Ip = (u_int *)Iimage;
u_short *Is = (u_short *)Iimage;
if (bpp == 24) {
if (Bmh->biCompression == BI_RGB) {
for (i = 0 ; i < pixels*lines ; i++) {
comp3[i] = *Iimage++; /* Blue */
comp2[i] = *Iimage++; /* Green */
comp1[i] = *Iimage++; /* Red */
}
}
else if (Bmh->biCompression == BI_DECXIMAGEDIB) {
/* RGBQUAD structures: (B,G,R,0) */
for (i = 0 ; i < pixels*lines ; i++) {
comp3[i] = *Iimage++; /* Blue */
comp2[i] = *Iimage++; /* Green */
comp1[i] = *Iimage++; /* Red */
Iimage++; /* Reserved */
}
}
}
else if (bpp == 32) { /* RGBQUAD structures: (B,G,R,0) */
for (i = 0 ; i < pixels*lines ; i++) {
comp3[i] = (Ip[i] >> 24) & 0xFF;
comp2[i] = (Ip[i] >> 16) & 0xFF;
comp1[i] = (Ip[i] >> 8) & 0xFF;
}
}
else if (bpp == 16) {
for (i = 0 ; i < pixels*lines ; i++) {
comp1[i] = (Is[i] >> 7) & 0xf8;
comp2[i] = (Is[i] >> 2) & 0xf8;
comp3[i] = (Is[i] << 3) & 0xf8;
}
}
return (NoErrors);
}
/*
** Name: SvCompressQuery
** Purpose: Determine if Codec can Compress desired format
**
** Args: Svh = handle to software codec's Info structure.
** ImgIn = Pointer to BITMAPINFOHEADER structure describing format
** ImgOut = Pointer to BITMAPINFOHEADER structure describing format
*/
SvStatus_t SvCompressQuery (SvHandle_t Svh, BITMAPINFOHEADER *ImgIn,
BITMAPINFOHEADER *ImgOut)
{
/*
** We don't *really* need the Info structures, but we check for
** NULL pointers to make sure the CODEC, whoes ability is being
** queried, was at least opened.
*/
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
if (!Info)
return(SvErrorCodecHandle);
if (!ImgIn && !ImgOut)
return(SvErrorBadPointer);
if (!IsSupported(_SvCompressionSupport,
ImgIn ? ImgIn->biCompression : -1,
ImgIn ? ImgIn->biBitCount : -1,
ImgOut ? ImgOut->biCompression : -1,
ImgOut ? ImgOut->biBitCount : -1))
return(SvErrorUnrecognizedFormat);
/*
** For speed we impose a restriction that the image size should be
** a multiple of 16x8. This insures that we would have at least one
** MCU for a 4:2:2 image
**
** NOTE: This is an artificial restriction from JPEG's perspective.
** In the case when the dimesnsions are otherwise, we should
** pixel replicate and/or line replicate before compressing.
*/
if (ImgIn)
{
if (ImgIn->biWidth <= 0 || ImgIn->biHeight == 0)
return(SvErrorBadImageSize);
if ((ImgIn->biWidth%16) || (ImgIn->biHeight%8))
return (SvErrorNotImplemented);
}
if (ImgOut) /* Query Output also */
{
if (ImgOut->biWidth <= 0 || ImgOut->biHeight == 0)
return (SvErrorBadImageSize);
if (ImgOut->biCompression == BI_DECH261DIB)
{
if ((ImgOut->biWidth != CIF_WIDTH && ImgOut->biWidth != QCIF_WIDTH) ||
(abs(ImgOut->biHeight) != CIF_HEIGHT && abs(ImgOut->biHeight) != QCIF_HEIGHT))
return (SvErrorBadImageSize);
}
}
return(NoErrors);
}
/*
** Name: SvGetCompressSize
** Purpose:
**
*/
SvStatus_t SvGetCompressSize (SvHandle_t Svh, int *MaxSize)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
if (!Info)
return (SvErrorCodecHandle);
if (!MaxSize)
return (SvErrorBadPointer);
/*
** We are being extra cautious here, it would reflect poorly on the JPEG
** commitee is the compressed bitstream was so big
*/
*MaxSize = 2 * Info->InputFormat.biWidth * abs(Info->InputFormat.biHeight);
return(NoErrors);
}
#ifdef JPEG_SUPPORT
/*
** Name: SvGetQuality
** Purpose:
**
*/
SvStatus_t SvGetQuality (SvHandle_t Svh, int *Quality)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
if (!Info)
return (SvErrorCodecHandle);
if (!Quality)
return (SvErrorBadPointer);
*Quality = Info->jcomp->Quality;
return (NoErrors);
}
#endif /* JPEG_SUPPORT */
#ifdef JPEG_SUPPORT
/*
** Name: SvSetQuality
** Purpose:
**
*/
SvStatus_t SvSetQuality (SvHandle_t Svh, int Quality)
{
int stat,ConvertedQuality;
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
if (!Info)
return (SvErrorCodecHandle);
if ((Quality < 0) || (Quality > 10000))
return (SvErrorValue);
Info->jcomp->Quality = Quality;
ConvertedQuality = 10000 - Quality;
if (ConvertedQuality < MIN_QUAL)
ConvertedQuality = MIN_QUAL;
stat = sv_MakeQTables (ConvertedQuality, Info);
return (stat);
}
#endif /* JPEG_SUPPORT */
#ifdef JPEG_SUPPORT
/*
** Name: SvGetCompQTables
** Purpose:
**
*/
SvStatus_t SvGetCompQTables (SvHandle_t Svh, SvQuantTables_t *Qt)
{
register int i;
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
if (!Info)
return (SvErrorCodecHandle);
if (!Info->jcomp->CompressStarted)
return (SvErrorCompNotStarted);
if (!Qt)
return (SvErrorBadPointer);
if ((!Qt->c1) || (!Qt->c2) || (!Qt->c3))
return (SvErrorBadPointer);
for (i = 0 ; i < 64 ; i++) {
register int zz = ZigZag[i];
Qt->c1[i] = (Info->jcomp->Qt[0])->ival[zz];
Qt->c2[i] = (Info->jcomp->Qt[1])->ival[zz];
Qt->c3[i] = (Info->jcomp->Qt[1])->ival[zz];
}
return(NoErrors);
}
#endif /* JPEG_SUPPORT */
/*
** Name: SvGetCodecInfo
** Purpose: Get info about the codec & the data
**
** Args: Svh = handle to software codec's Info structure.
**
** XXX - does not work for compression, this has to wait for the
** decompressor to use SvCodecInfo_t struct for this to work
*/
SvStatus_t SvGetInfo (SvHandle_t Svh, SV_INFO_t *lpinfo, BITMAPINFOHEADER *Bmh)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
if (!Info)
return(SvErrorCodecHandle);
lpinfo->Version = SLIB_VERSION;
switch (Info->mode)
{
#ifdef JPEG_SUPPORT
case SV_JPEG_ENCODE:
lpinfo->CodecStarted = Info->jcomp->CompressStarted;
break;
case SV_JPEG_DECODE:
lpinfo->CodecStarted = Info->jdcmp->DecompressStarted;
break;
#endif /* JPEG_SUPPORT */
default:
lpinfo->CodecStarted = 0;
break;
}
lpinfo->NumOperations = Info->NumOperations;
*Bmh = Info->InputFormat;
return(NoErrors);
}
/*
** Name: sv_GetComponentPointers
** Purpose: Given a pointer to an image and its size,
** return pointers to the individual image components
**
** Args: pixels = number of pixels in a line.
** lines = number of lines in image.
** Image = Pointer to start of combined image data
** MaxLen = Size of image data in bytes
** comp1/2/3= pointers to pointers to individual components
*/
static SvStatus_t sv_GetYUVComponentPointers(int biCompression,
int pixels, int lines, u_char *Image,
int MaxLen, u_char **comp1, u_char **comp2, u_char **comp3)
{
u_int sz1,sz2,sz3,maxlen;
sz1 = pixels * lines;
sz2 = sz3 = (IsYUV411Sep(biCompression)) ? (sz1 / 4) :
((IsYUV1611Sep(biCompression)) ? (pixels * lines / 16)
: (sz1 / 2));
maxlen = (MaxLen > 0) ? (u_int) MaxLen : 0 ;
if (biCompression == BI_DECGRAYDIB) {
if (sz1 > maxlen)
return(SvErrorBadImageSize);
*comp1 = Image;
*comp2 = NULL;
*comp3 = NULL;
}
else {
if ((sz1+sz2+sz3) > maxlen)
return(SvErrorBadImageSize);
*comp1 = Image;
*comp2 = Image + sz1;
*comp3 = Image + sz1 + sz2;
}
return(SvErrorNone);
}
#ifdef JPEG_SUPPORT
/*
** Name: sv_JpegExtractBlocks
** Purpose:
**
** Note: If we did our job right, memory for all global structures should
** have been allocated by the upper layers, we do not waste time
** checking for NULL pointers at this point
**
*/
static SvStatus_t sv_JpegExtractBlocks (SvCodecInfo_t *Info, u_char *RawImage)
{
SvJpegCompressInfo_t *CInfo = (SvJpegCompressInfo_t *)Info->jcomp;
int size = Info->Width * Info->Height;
u_char *TempImage;
SvStatus_t stat;
if (IsYUV422Packed(Info->InputFormat.biCompression))
/*
** This will extract chunks of 64 bytes (8x8 blocks) from the uncompressed
** 4:2:2 interleaved input video frame and place them in three separate
** linear arrays for later processing.
** XXX - should also do level shifting in this routine
**
*/
ScConvert422iTo422sf_C(RawImage, 16,
(float *)(CInfo->BlkBuffer),
(float *)(CInfo->BlkBuffer + size),
(float *)(CInfo->BlkBuffer + size + size/2),
Info->Width,
Info->Height);
else if (IsYUV422Sep(Info->InputFormat.biCompression))
/*
** Same but RawImage is not interleaved. Three components are sequential.
*/
ScConvertSep422ToBlockYUV (RawImage, 16,
(float *)(CInfo->BlkBuffer),
(float *)(CInfo->BlkBuffer + size),
(float *)(CInfo->BlkBuffer + size + size/2),
Info->Width,
Info->Height);
else if (Info->InputFormat.biCompression == BI_DECGRAYDIB)
/*
** Grayscale: one component
*/
ScConvertGrayToBlock (RawImage,
8,
(float *)(CInfo->BlkBuffer),
Info->Width,
Info->Height);
if ((Info->InputFormat.biCompression == BI_RGB) ||
(Info->InputFormat.biCompression == BI_DECXIMAGEDIB) ||
(ValidateBI_BITFIELDS(&Info->InputFormat) != InvalidBI_BITFIELDS))
{
TempImage = (u_char *)ScPaMalloc (3 * Info->Width * Info->Height);
if (TempImage == NULL)
return(ScErrorMemory);
stat = ScRgbInterlToYuvInterl(
&Info->InputFormat,
(int)Info->Width,
(int)Info->Height,
RawImage,
(u_short *) TempImage);
RETURN_ON_ERROR (stat);
ScConvert422iTo422sf_C(
TempImage,
16,
(float *)(CInfo->BlkBuffer),
(float *)(CInfo->BlkBuffer + size),
(float *)(CInfo->BlkBuffer + size + size/2),
Info->Width,
Info->Height);
ScPaFree(TempImage);
}
return (NoErrors);
}
#endif /* JPEG_SUPPORT */
#ifdef JPEG_SUPPORT
/*
** Name: SvSetQuantMode
** Purpose: Used only in the "Q Conversion" program "jpegconvert" to
** set a flag in the comp & decomp info structures that causes
** the quantization algorithm to use the new or old versions
** of JPEG quantization.
**
*/
SvStatus_t SvSetQuantMode (SvHandle_t Svh, int QuantMode)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
if (!Info)
return (SvErrorCodecHandle);
if ((QuantMode != SV_JPEG_QUANT_OLD) && (QuantMode != SV_JPEG_QUANT_NEW))
return (SvErrorValue);
if (Info->jdcmp)
Info->jdcmp->QuantMode = QuantMode;
if (Info->jcomp)
Info->jcomp->QuantMode = QuantMode;
return (NoErrors);
}
#endif /* JPEG_SUPPORT */
/*
** Name: SvSetParamBoolean()
** Desc: Generic call used to set specific BOOLEAN (TRUE or FALSE) parameters
** of the CODEC.
*/
SvStatus_t SvSetParamBoolean(SvHandle_t Svh, SvParameter_t param,
ScBoolean_t value)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
if (!Info)
return(SvErrorCodecHandle);
_SlibDebug(_VERBOSE_, printf("SvSetParamBoolean()\n") );
switch (Info->mode)
{
#ifdef MPEG_SUPPORT
case SV_MPEG_DECODE:
case SV_MPEG2_DECODE:
case SV_MPEG_ENCODE:
case SV_MPEG2_ENCODE:
sv_MpegSetParamBoolean(Svh, param, value);
break;
#endif /* MPEG_SUPPORT */
#ifdef H261_SUPPORT
case SV_H261_DECODE:
case SV_H261_ENCODE:
svH261SetParamBoolean(Svh, param, value);
break;
#endif /* H263_SUPPORT */
#ifdef H263_SUPPORT
case SV_H263_DECODE:
case SV_H263_ENCODE:
svH263SetParamBoolean(Svh, param, value);
break;
#endif /* H263_SUPPORT */
default:
return(SvErrorCodecType);
}
return(NoErrors);
}
/*
** Name: SvSetParamInt()
** Desc: Generic call used to set specific INTEGER (qword) parameters
** of the CODEC.
*/
SvStatus_t SvSetParamInt(SvHandle_t Svh, SvParameter_t param, qword value)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
if (!Info)
return(SvErrorCodecHandle);
_SlibDebug(_VERBOSE_, printf("SvSetParamInt()\n") );
switch (Info->mode)
{
#ifdef MPEG_SUPPORT
case SV_MPEG_DECODE:
case SV_MPEG2_DECODE:
case SV_MPEG_ENCODE:
case SV_MPEG2_ENCODE:
sv_MpegSetParamInt(Svh, param, value);
break;
#endif /* MPEG_SUPPORT */
#ifdef H261_SUPPORT
case SV_H261_DECODE:
case SV_H261_ENCODE:
svH261SetParamInt(Svh, param, value);
break;
#endif /* H261_SUPPORT */
#ifdef H263_SUPPORT
case SV_H263_DECODE:
case SV_H263_ENCODE:
svH263SetParamInt(Svh, param, value);
break;
#endif /* H263_SUPPORT */
default:
return(SvErrorCodecType);
}
return(NoErrors);
}
/*
** Name: SvSetParamFloat()
** Desc: Generic call used to set specific FLOAT parameters of the CODEC.
*/
SvStatus_t SvSetParamFloat(SvHandle_t Svh, SvParameter_t param, float value)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
if (!Info)
return(SvErrorCodecHandle);
_SlibDebug(_VERBOSE_, printf("SvSetParamFloat()\n") );
switch (Info->mode)
{
#ifdef MPEG_SUPPORT
case SV_MPEG_DECODE:
case SV_MPEG2_DECODE:
case SV_MPEG_ENCODE:
case SV_MPEG2_ENCODE:
sv_MpegSetParamFloat(Svh, param, value);
break;
#endif /* MPEG_SUPPORT */
#ifdef H261_SUPPORT
case SV_H261_DECODE:
case SV_H261_ENCODE:
svH261SetParamFloat(Svh, param, value);
break;
#endif /* H261_SUPPORT */
#ifdef H263_SUPPORT
case SV_H263_DECODE:
case SV_H263_ENCODE:
svH263SetParamFloat(Svh, param, value);
break;
#endif /* H263_SUPPORT */
default:
return(SvErrorCodecType);
}
return(NoErrors);
}
/*
** Name: SvGetParamBoolean()
** Desc: Generic call used to get the setting of specific BOOLEAN (TRUE or FALSE)
** parameters of the CODEC.
*/
ScBoolean_t SvGetParamBoolean(SvHandle_t Svh, SvParameter_t param)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
if (!Info)
return(FALSE);
switch (Info->mode)
{
#ifdef JPEG_SUPPORT
/* this code should be moved into JPEG codec: svJPEGGetParamBoolean() */
case SV_JPEG_DECODE:
case SV_JPEG_ENCODE:
switch (param)
{
case SV_PARAM_BITSTREAMING:
return(FALSE); /* this is a frame-based codecs */
}
break;
#endif /* JPEG_SUPPORT */
#ifdef MPEG_SUPPORT
case SV_MPEG_DECODE:
case SV_MPEG2_DECODE:
case SV_MPEG_ENCODE:
case SV_MPEG2_ENCODE:
return(sv_MpegGetParamBoolean(Svh, param));
break;
#endif /* MPEG_SUPPORT */
#ifdef H261_SUPPORT
/* this code should be moved into H261 codec: svH261GetParamBoolean() */
case SV_H261_DECODE:
case SV_H261_ENCODE:
return(svH261GetParamBoolean(Svh, param));
break;
#endif /* H261_SUPPORT */
#ifdef H263_SUPPORT
case SV_H263_DECODE:
case SV_H263_ENCODE:
return(svH263GetParamBoolean(Svh, param));
break;
#endif /* H263_SUPPORT */
}
return(FALSE);
}
/*
** Name: SvGetParamInt()
** Desc: Generic call used to get the setting of specific INTEGER (qword)
** parameters of the CODEC.
*/
qword SvGetParamInt(SvHandle_t Svh, SvParameter_t param)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
if (!Info)
return(0);
switch (Info->mode)
{
#ifdef JPEG_SUPPORT
/* this code should be moved into JPEG codec: svJPEGGetParamInt() */
case SV_JPEG_DECODE:
case SV_JPEG_ENCODE:
switch (param)
{
case SV_PARAM_NATIVEFORMAT:
return(BI_YU16SEP);
}
break;
#endif /* JPEG_SUPPORT */
#ifdef H261_SUPPORT
/* this code should be moved into H261 codec: svH261GetParamInt() */
case SV_H261_DECODE:
case SV_H261_ENCODE:
return(svH261GetParamInt(Svh, param));
break;
#endif /* H261_SUPPORT */
#ifdef H263_SUPPORT
case SV_H263_DECODE:
case SV_H263_ENCODE:
return(svH263GetParamInt(Svh, param));
break;
#endif /* H263_SUPPORT */
#ifdef MPEG_SUPPORT
case SV_MPEG_DECODE:
case SV_MPEG2_DECODE:
case SV_MPEG_ENCODE:
case SV_MPEG2_ENCODE:
return(sv_MpegGetParamInt(Svh, param));
#endif /* MPEG_SUPPORT */
}
switch (param)
{
case SV_PARAM_FINALFORMAT:
return(Info->OutputFormat.biCompression);
}
return(0);
}
/*
** Name: SvGetParamBoolean()
** Desc: Generic call used to get the setting of specific FLOAT
** parameters of the CODEC.
*/
float SvGetParamFloat(SvHandle_t Svh, SvParameter_t param)
{
SvCodecInfo_t *Info = (SvCodecInfo_t *)Svh;
if (!Info)
return(0.0f);
switch (Info->mode)
{
#ifdef MPEG_SUPPORT
case SV_MPEG_DECODE:
case SV_MPEG2_DECODE:
case SV_MPEG_ENCODE:
case SV_MPEG2_ENCODE:
return(sv_MpegGetParamFloat(Svh, param));
#endif
#ifdef H261_SUPPORT
case SV_H261_DECODE:
case SV_H261_ENCODE:
return(svH261GetParamFloat(Svh, param));
#endif /* H261_SUPPORT */
#ifdef H263_SUPPORT
case SV_H263_DECODE:
case SV_H263_ENCODE:
return(svH263GetParamFloat(Svh, param));
#endif /* H263_SUPPORT */
}
return(0.0f);
}
/*
** Name: sv_copy_bmh
** Purpose: Copy a BITMAPINFOHEADER struct. For now, it only knows about the
** extra DWORD masks at the end of BI_BITFIELDS bitmapinfoheaders.
** Otherwise, it treats others (such as 8 bit rgb, or jpeg) the
** same as a vanilla bitmapinfoheader.
*/
static void sv_copy_bmh (
BITMAPINFOHEADER *ImgFrom,
BITMAPINFOHEADER *ImgTo)
{
*ImgTo = *ImgFrom;
if (ImgFrom->biCompression == BI_BITFIELDS)
bcopy(ImgFrom + 1, ImgTo + 1, 3*sizeof(DWORD));
}
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