mirror of
https://git.videolan.org/git/ffmpeg.git
synced 2024-08-08 10:25:46 +02:00
b5da7d4c1a
* qatar/master: avformat: Drop pointless "format" from container long names swscale: bury one more piece of inline asm under HAVE_INLINE_ASM. wv: K&R formatting cosmetics configure: Add missing descriptions to help output h264_ps: declare array of colorspace strings on its own line. fate: amix: specify f32 sample format for comparison tiny_psnr: support 32-bit float samples eamad/eatgq/eatqi: call special EA IDCT directly eamad: remove use of MpegEncContext mpegvideo: remove unnecessary inclusions of faandct.h af_asyncts: avoid overflow in out_size with large delta values af_asyncts: add first_pts option Conflicts: configure libavcodec/eamad.c libavcodec/h264_ps.c libavformat/crcenc.c libavformat/ffmdec.c libavformat/ffmenc.c libavformat/framecrcenc.c libavformat/md5enc.c libavformat/nutdec.c libavformat/rawenc.c libavformat/yuv4mpeg.c tests/tiny_psnr.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
86 lines
2.2 KiB
C
86 lines
2.2 KiB
C
/*
|
|
* G.723.1 demuxer
|
|
* Copyright (c) 2010 Mohamed Naufal Basheer
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* G.723.1 demuxer
|
|
*/
|
|
|
|
#include "libavutil/audioconvert.h"
|
|
#include "avformat.h"
|
|
#include "internal.h"
|
|
|
|
static const uint8_t frame_size[4] = { 24, 20, 4, 1 };
|
|
|
|
static int g723_1_init(AVFormatContext *s)
|
|
{
|
|
AVStream *st;
|
|
|
|
st = avformat_new_stream(s, NULL);
|
|
if (!st)
|
|
return AVERROR(ENOMEM);
|
|
|
|
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
|
|
st->codec->codec_id = CODEC_ID_G723_1;
|
|
st->codec->channel_layout = AV_CH_LAYOUT_MONO;
|
|
st->codec->channels = 1;
|
|
st->codec->sample_rate = 8000;
|
|
|
|
avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
|
|
st->start_time = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int g723_1_read_packet(AVFormatContext *s, AVPacket *pkt)
|
|
{
|
|
int size, byte, ret;
|
|
|
|
pkt->pos = avio_tell(s->pb);
|
|
byte = avio_r8(s->pb);
|
|
size = frame_size[byte & 3];
|
|
|
|
ret = av_new_packet(pkt, size);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
pkt->data[0] = byte;
|
|
pkt->duration = 240;
|
|
pkt->stream_index = 0;
|
|
|
|
ret = avio_read(s->pb, pkt->data + 1, size - 1);
|
|
if (ret < size - 1) {
|
|
av_free_packet(pkt);
|
|
return ret < 0 ? ret : AVERROR_EOF;
|
|
}
|
|
|
|
return pkt->size;
|
|
}
|
|
|
|
AVInputFormat ff_g723_1_demuxer = {
|
|
.name = "g723_1",
|
|
.long_name = NULL_IF_CONFIG_SMALL("G.723.1"),
|
|
.read_header = g723_1_init,
|
|
.read_packet = g723_1_read_packet,
|
|
.extensions = "tco,rco,g723_1",
|
|
.flags = AVFMT_GENERIC_INDEX
|
|
};
|