RepoMirrors
/
ffmpeg
mirror of https://git.ffmpeg.org/ffmpeg.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

avformat/rsd: add WADP support 

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2015-10-16 00:09:02 +02:00
parent 3919089beb
commit 3a63890154
1 changed files with 36 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
libavformat/rsd.c
View File

@ -27,6 +27,7 @@
static const AVCodecTag rsd_tags[] = {
{ AV_CODEC_ID_ADPCM_THP, MKTAG('G','A','D','P') },
{ AV_CODEC_ID_ADPCM_THP, MKTAG('W','A','D','P') },
{ AV_CODEC_ID_ADPCM_IMA_RAD, MKTAG('R','A','D','P') },
{ AV_CODEC_ID_ADPCM_IMA_WAV, MKTAG('X','A','D','P') },
{ AV_CODEC_ID_PCM_S16BE, MKTAG('P','C','M','B') },
@ -37,7 +38,6 @@ static const AVCodecTag rsd_tags[] = {
static const uint32_t rsd_unsupported_tags[] = {
MKTAG('O','G','G',' '),
MKTAG('V','A','G',' '),
MKTAG('W','A','D','P'),
MKTAG('X','M','A',' '),
};
@ -110,6 +110,7 @@ static int rsd_read_header(AVFormatContext *s)
st->duration = av_get_audio_frame_duration(codec, avio_size(pb) - start);
break;
case AV_CODEC_ID_ADPCM_THP:
if (st->codec->codec_tag == MKTAG('G','A','D','P')) {
/* RSD3GADP is mono, so only alloc enough memory
to store the coeff table for a single channel. */
@ -121,8 +122,20 @@ static int rsd_read_header(AVFormatContext *s)
for (i = 0; i < 16; i++)
AV_WB16(codec->extradata + i * 2, AV_RL16(codec->extradata + i * 2));
} else {
codec->block_align = 8 * codec->channels;
avio_skip(s->pb, 0x1A4 - avio_tell(s->pb));
if (ff_alloc_extradata(st->codec, 32 * st->codec->channels) < 0)
return AVERROR(ENOMEM);
for (i = 0; i < st->codec->channels; i++) {
avio_read(s->pb, st->codec->extradata + 32 * i, 32);
avio_skip(s->pb, 8);
}
}
if (pb->seekable)
st->duration = (avio_size(pb) - start) / 8 * 14;
st->duration = (avio_size(pb) - start) / (8 * st->codec->channels) * 14;
break;
case AV_CODEC_ID_PCM_S16LE:
case AV_CODEC_ID_PCM_S16BE:
@ -150,18 +163,24 @@ static int rsd_read_packet(AVFormatContext *s, AVPacket *pkt)
return AVERROR_EOF;
if (codec->codec_id == AV_CODEC_ID_ADPCM_IMA_RAD ||
codec->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV)
codec->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
ret = av_get_packet(s->pb, pkt, codec->block_align);
else
ret = av_get_packet(s->pb, pkt, size);
} else if (codec->codec_tag == MKTAG('W','A','D','P') &&
codec->channels > 1) {
int i, ch;
if (ret != size) {
if (ret < 0) {
av_free_packet(pkt);
return ret;
av_new_packet(pkt, codec->block_align);
for (i = 0; i < 4; i++) {
for (ch = 0; ch < codec->channels; ch++) {
pkt->data[ch * 8 + i * 2 + 0] = avio_r8(s->pb);
pkt->data[ch * 8 + i * 2 + 1] = avio_r8(s->pb);
}
av_shrink_packet(pkt, ret);
}
ret = 0;
} else {
ret = av_get_packet(s->pb, pkt, size);
}
pkt->stream_index = 0;
return ret;