mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-18 03:19:31 +02:00
7a72695c05
* commit '36ef5369ee9b336febc2c270f8718cec4476cb85': Replace all CODEC_ID_* with AV_CODEC_ID_* lavc: add AV prefix to codec ids. Conflicts: doc/APIchanges doc/examples/decoding_encoding.c doc/examples/muxing.c ffmpeg.c ffprobe.c ffserver.c libavcodec/8svx.c libavcodec/avcodec.h libavcodec/dnxhd_parser.c libavcodec/dvdsubdec.c libavcodec/error_resilience.c libavcodec/h263dec.c libavcodec/libvorbisenc.c libavcodec/mjpeg_parser.c libavcodec/mjpegenc.c libavcodec/mpeg12.c libavcodec/mpeg4videodec.c libavcodec/mpegvideo.c libavcodec/mpegvideo_enc.c libavcodec/pcm.c libavcodec/r210dec.c libavcodec/utils.c libavcodec/v210dec.c libavcodec/version.h libavdevice/alsa-audio-dec.c libavdevice/bktr.c libavdevice/v4l2.c libavformat/asfdec.c libavformat/asfenc.c libavformat/avformat.h libavformat/avidec.c libavformat/caf.c libavformat/electronicarts.c libavformat/flacdec.c libavformat/flvdec.c libavformat/flvenc.c libavformat/framecrcenc.c libavformat/img2.c libavformat/img2dec.c libavformat/img2enc.c libavformat/ipmovie.c libavformat/isom.c libavformat/matroska.c libavformat/matroskadec.c libavformat/matroskaenc.c libavformat/mov.c libavformat/movenc.c libavformat/mp3dec.c libavformat/mpeg.c libavformat/mpegts.c libavformat/mxf.c libavformat/mxfdec.c libavformat/mxfenc.c libavformat/nsvdec.c libavformat/nut.c libavformat/oggenc.c libavformat/pmpdec.c libavformat/rawdec.c libavformat/rawenc.c libavformat/riff.c libavformat/sdp.c libavformat/utils.c libavformat/vocenc.c libavformat/wtv.c libavformat/xmv.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
98 lines
2.8 KiB
C
98 lines
2.8 KiB
C
/*
|
|
* RSO demuxer
|
|
* Copyright (c) 2001 Fabrice Bellard (original AU code)
|
|
* Copyright (c) 2010 Rafael Carre
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
#include "libavutil/intreadwrite.h"
|
|
#include "avformat.h"
|
|
#include "internal.h"
|
|
#include "pcm.h"
|
|
#include "riff.h"
|
|
#include "rso.h"
|
|
|
|
static int rso_read_header(AVFormatContext *s)
|
|
{
|
|
AVIOContext *pb = s->pb;
|
|
int id, rate, bps;
|
|
unsigned int size;
|
|
enum AVCodecID codec;
|
|
AVStream *st;
|
|
|
|
id = avio_rb16(pb);
|
|
size = avio_rb16(pb);
|
|
rate = avio_rb16(pb);
|
|
avio_rb16(pb); /* play mode ? (0x0000 = don't loop) */
|
|
|
|
codec = ff_codec_get_id(ff_codec_rso_tags, id);
|
|
|
|
if (codec == AV_CODEC_ID_ADPCM_IMA_WAV) {
|
|
av_log(s, AV_LOG_ERROR, "ADPCM in RSO not implemented\n");
|
|
return AVERROR_PATCHWELCOME;
|
|
}
|
|
|
|
bps = av_get_bits_per_sample(codec);
|
|
if (!bps) {
|
|
av_log_ask_for_sample(s, "could not determine bits per sample\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
/* now we are ready: build format streams */
|
|
st = avformat_new_stream(s, NULL);
|
|
if (!st)
|
|
return AVERROR(ENOMEM);
|
|
|
|
st->duration = (size * 8) / bps;
|
|
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
|
|
st->codec->codec_tag = id;
|
|
st->codec->codec_id = codec;
|
|
st->codec->channels = 1;
|
|
st->codec->sample_rate = rate;
|
|
|
|
avpriv_set_pts_info(st, 64, 1, rate);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define BLOCK_SIZE 1024 /* in samples */
|
|
|
|
static int rso_read_packet(AVFormatContext *s, AVPacket *pkt)
|
|
{
|
|
int bps = av_get_bits_per_sample(s->streams[0]->codec->codec_id);
|
|
int ret = av_get_packet(s->pb, pkt, BLOCK_SIZE * bps >> 3);
|
|
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
pkt->flags &= ~AV_PKT_FLAG_CORRUPT;
|
|
pkt->stream_index = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
AVInputFormat ff_rso_demuxer = {
|
|
.name = "rso",
|
|
.long_name = NULL_IF_CONFIG_SMALL("Lego Mindstorms RSO"),
|
|
.extensions = "rso",
|
|
.read_header = rso_read_header,
|
|
.read_packet = rso_read_packet,
|
|
.read_seek = ff_pcm_read_seek,
|
|
.codec_tag = (const AVCodecTag* const []){ff_codec_rso_tags, 0},
|
|
};
|