har0ke/FFmpeg
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

support sample rates > INT16_MAX in mov using stsd v2

Browse Source 
Originally committed as revision 20647 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier 2009-11-29 02:03:24 +00:00
parent 9d13016690
commit feaa8d110d
1 changed files with 68 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

75
libavformat/movenc.c
View File

@ -402,16 +402,55 @@ static int mov_write_glbl_tag(ByteIOContext *pb, MOVTrack *track)
return 8+track->vosLen;
}
/**
* Compute flags for 'lpcm' tag.
* See CoreAudioTypes and AudioStreamBasicDescription at Apple.
*/
static int mov_get_lpcm_flags(enum CodecID codec_id)
{
switch (codec_id) {
case CODEC_ID_PCM_F32BE:
case CODEC_ID_PCM_F64BE:
return 11;
case CODEC_ID_PCM_F32LE:
case CODEC_ID_PCM_F64LE:
return 9;
case CODEC_ID_PCM_U8:
return 10;
case CODEC_ID_PCM_S16BE:
case CODEC_ID_PCM_S24BE:
case CODEC_ID_PCM_S32BE:
return 14;
case CODEC_ID_PCM_S8:
case CODEC_ID_PCM_S16LE:
case CODEC_ID_PCM_S24LE:
case CODEC_ID_PCM_S32LE:
return 12;
default:
return 0;
}
}
static int mov_write_audio_tag(ByteIOContext *pb, MOVTrack *track)
{
int64_t pos = url_ftell(pb);
int version = track->mode == MODE_MOV &&
(track->audio_vbr ||
track->enc->codec_id == CODEC_ID_PCM_S32LE ||
track->enc->codec_id == CODEC_ID_PCM_S24LE);
int version = 0;
uint32_t tag = track->tag;
if (track->mode == MODE_MOV) {
if (track->timescale > UINT16_MAX) {
if (mov_get_lpcm_flags(track->enc->codec_id))
tag = AV_RL32("lpcm");
version = 2;
} else if (track->audio_vbr ||
track->enc->codec_id == CODEC_ID_PCM_S32LE ||
track->enc->codec_id == CODEC_ID_PCM_S24LE) {
version = 1;
}
}
put_be32(pb, 0); /* size */
put_le32(pb, track->tag); // store it byteswapped
put_le32(pb, tag); // store it byteswapped
put_be32(pb, 0); /* Reserved */
put_be16(pb, 0); /* Reserved */
put_be16(pb, 1); /* Data-reference index, XXX == 1 */
@ -421,6 +460,21 @@ static int mov_write_audio_tag(ByteIOContext *pb, MOVTrack *track)
put_be16(pb, 0); /* Revision level */
put_be32(pb, 0); /* Reserved */
if (version == 2) {
put_be16(pb, 3);
put_be16(pb, 16);
put_be16(pb, 0xfffe);
put_be16(pb, 0);
put_be32(pb, 0x00010000);
put_be32(pb, 72);
put_be64(pb, av_dbl2int(track->timescale));
put_be32(pb, track->enc->channels);
put_be32(pb, 0x7F000000);
put_be32(pb, av_get_bits_per_sample(track->enc->codec_id));
put_be32(pb, mov_get_lpcm_flags(track->enc->codec_id));
put_be32(pb, track->sampleSize);
put_be32(pb, track->enc->frame_size);
} else {
if (track->mode == MODE_MOV) {
put_be16(pb, track->enc->channels);
if (track->enc->codec_id == CODEC_ID_PCM_U8 ||
@ -438,6 +492,7 @@ static int mov_write_audio_tag(ByteIOContext *pb, MOVTrack *track)
put_be16(pb, 0); /* packet size (= 0) */
put_be16(pb, track->timescale); /* Time scale */
put_be16(pb, 0); /* Reserved */
}
if(version == 1) { /* SoundDescription V1 extended info */
put_be32(pb, track->enc->frame_size); /* Samples per packet */
@ -1788,11 +1843,17 @@ static int mov_write_header(AVFormatContext *s)
st->codec->frame_size = 1;
track->sampleSize = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
}
if(track->mode != MODE_MOV &&
track->enc->codec_id == CODEC_ID_MP3 && track->enc->sample_rate < 16000){
if (track->mode != MODE_MOV) {
if (track->timescale > INT16_MAX) {
av_log(s, AV_LOG_ERROR, "track %d: output format does not support "
"sample rate %dhz\n", i, track->timescale);
goto error;
}
if (track->enc->codec_id == CODEC_ID_MP3 && track->timescale < 16000) {
av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
i, track->enc->sample_rate);
goto error;
}
}
}else if(st->codec->codec_type == CODEC_TYPE_SUBTITLE){
track->timescale = st->codec->time_base.den;