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Diffstat (limited to 'libavformat/movenc.c')
-rw-r--r--libavformat/movenc.c88
1 files changed, 45 insertions, 43 deletions
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index d718cf1974..181965f720 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -37,6 +37,7 @@
#include "libavutil/opt.h"
#include "libavutil/dict.h"
#include "rtpenc.h"
+#include "mov_chan.h"
#undef NDEBUG
#include <assert.h>
@@ -354,6 +355,31 @@ static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
return updateSize(pb, pos);
}
+static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
+{
+ uint32_t layout_tag, bitmap;
+ int64_t pos = avio_tell(pb);
+
+ layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
+ track->enc->channel_layout,
+ &bitmap);
+ if (!layout_tag) {
+ av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
+ "lack of channel information\n");
+ return 0;
+ }
+
+ avio_wb32(pb, 0); // Size
+ ffio_wfourcc(pb, "chan"); // Type
+ avio_w8(pb, 0); // Version
+ avio_wb24(pb, 0); // Flags
+ avio_wb32(pb, layout_tag); // mChannelLayoutTag
+ avio_wb32(pb, bitmap); // mChannelBitmap
+ avio_wb32(pb, 0); // mNumberChannelDescriptions
+
+ return updateSize(pb, pos);
+}
+
static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
{
int64_t pos = avio_tell(pb);
@@ -376,6 +402,7 @@ static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
} else if (track->enc->codec_id == CODEC_ID_AMR_NB) {
mov_write_amr_tag(pb, track);
} else if (track->enc->codec_id == CODEC_ID_AC3) {
+ mov_write_chan_tag(pb, track);
mov_write_ac3_tag(pb, track);
} else if (track->enc->codec_id == CODEC_ID_ALAC) {
mov_write_extradata_tag(pb, track);
@@ -434,15 +461,9 @@ static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
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 || mov_pcm_le_gt16(track->enc->codec_id) ||
- track->enc->codec_id == CODEC_ID_ADPCM_MS ||
- track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
- version = 1;
- }
+ if (mov_get_lpcm_flags(track->enc->codec_id))
+ tag = AV_RL32("lpcm");
+ version = 2;
}
avio_wb32(pb, 0); /* size */
@@ -469,34 +490,18 @@ static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
avio_wb32(pb, track->sampleSize);
- avio_wb32(pb, track->enc->frame_size);
+ avio_wb32(pb, track->audio_vbr ? track->enc->frame_size : 1);
} else {
- if (track->mode == MODE_MOV) {
- avio_wb16(pb, track->enc->channels);
- if (track->enc->codec_id == CODEC_ID_PCM_U8 ||
- track->enc->codec_id == CODEC_ID_PCM_S8)
- avio_wb16(pb, 8); /* bits per sample */
- else
- avio_wb16(pb, 16);
- avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
- } else { /* reserved for mp4/3gp */
- avio_wb16(pb, 2);
- avio_wb16(pb, 16);
- avio_wb16(pb, 0);
- }
+ /* reserved for mp4/3gp */
+ avio_wb16(pb, 2);
+ avio_wb16(pb, 16);
+ avio_wb16(pb, 0);
avio_wb16(pb, 0); /* packet size (= 0) */
avio_wb16(pb, track->timescale); /* Time scale */
avio_wb16(pb, 0); /* Reserved */
}
- if(version == 1) { /* SoundDescription V1 extended info */
- avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
- avio_wb32(pb, track->sampleSize / track->enc->channels); /* Bytes per packet */
- avio_wb32(pb, track->sampleSize); /* Bytes per frame */
- avio_wb32(pb, 2); /* Bytes per sample */
- }
-
if(track->mode == MODE_MOV &&
(track->enc->codec_id == CODEC_ID_AAC ||
track->enc->codec_id == CODEC_ID_AC3 ||
@@ -2226,9 +2231,6 @@ int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
return -1;
}
- } else if (enc->codec_id == CODEC_ID_ADPCM_MS ||
- enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
- samplesInChunk = enc->frame_size;
} else if (trk->sampleSize)
samplesInChunk = size/trk->sampleSize;
else
@@ -2458,21 +2460,21 @@ static int mov_write_header(AVFormatContext *s)
"or choose different container.\n");
}else if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO){
track->timescale = st->codec->sample_rate;
- if(!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
- av_log(s, AV_LOG_ERROR, "track %d: codec frame size is not set\n", i);
- goto error;
- }else if(st->codec->codec_id == CODEC_ID_ADPCM_MS ||
- st->codec->codec_id == CODEC_ID_ADPCM_IMA_WAV){
+ /* set sampleSize for PCM and ADPCM */
+ if (av_get_bits_per_sample(st->codec->codec_id)) {
if (!st->codec->block_align) {
- av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
+ av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set\n", i);
goto error;
}
track->sampleSize = st->codec->block_align;
- }else if(st->codec->frame_size > 1){ /* assume compressed audio */
+ }
+ /* set audio_vbr for compressed audio */
+ if (av_get_bits_per_sample(st->codec->codec_id) < 8) {
+ if (!st->codec->frame_size) {
+ av_log(s, AV_LOG_ERROR, "track %d: codec frame size is not set\n", i);
+ goto error;
+ }
track->audio_vbr = 1;
- }else{
- 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) {
if (track->timescale > UINT16_MAX) {
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-28 21:44:42 +0000