librempeg/libavcodec/msgsmdec.c
Michael Niedermayer 794006f8fe Merge remote-tracking branch 'qatar/master'
* qatar/master:
  fft: init functions with INIT_XMM/YMM.
  pcmenc: set frame_size to 0.
  gsm demuxer: use generic seeking instead of a gsm-specific function.
  gsm demuxer: return packets with only 1 gsm block at a time.
  avcodec: add GSM parser
  doc: Replace ffmpeg references in avserver config file by avconv.
  doc: Fix names of av_log color environment variables.
  Fix a bunch of platform name and other typos.
  Add some missing changelog entries and release 0.8_beta2
  No longer build libpostproc by default
  wtv: fix memleaks during normal operation
  threads: add CODEC_CAP_AUTO_THREADS for libvpx and xavs

Conflicts:
	Changelog
	RELEASE
	cmdutils.c
	configure
	doc/ffserver.conf
	doc/platform.texi
	ffplay.c
	libavcodec/Makefile
	libavcodec/version.h
	libavformat/wtv.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-12 01:10:32 +01:00

39 lines
1.3 KiB
C

/*
* gsm 06.10 decoder, Microsoft variant
* Copyright (c) 2010 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#define BITSTREAM_READER_LE
#include "avcodec.h"
#include "msgsmdec.h"
#include "gsm.h"
#include "gsmdec_template.c"
int ff_msgsm_decode_block(AVCodecContext *avctx, int16_t *samples,
const uint8_t *buf)
{
int res;
GetBitContext gb;
init_get_bits(&gb, buf, GSM_MS_BLOCK_SIZE * 8);
res = gsm_decode_block(avctx, samples, &gb);
if (res < 0)
return res;
return gsm_decode_block(avctx, samples + GSM_FRAME_SIZE, &gb);
}