From: Jan Ekström <jan.ekst...@24i.com>
Add the AC-3 frame type, as well as early exit from additional packet
parsing in case of AC-3, as only a single packet is required to get
the required information.
Signed-off-by: Jan Ekström <jan.ekst...@24i.com>
---
libavformat/movenc.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index 87cd066c95..c24b11cf5f 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -443,7 +443,8 @@ static int handle_eac3(MOVMuxContext *mov, AVPacket *pkt,
MOVTrack *track)
/* this should always be the case, given that our AC-3 parser
* concatenates dependent frames to their independent parent */
- if (hdr->frame_type == EAC3_FRAME_TYPE_INDEPENDENT) {
+ if (hdr->frame_type == EAC3_FRAME_TYPE_INDEPENDENT ||
+ hdr->frame_type == EAC3_FRAME_TYPE_AC3_CONVERT) {
/* substream ids must be incremental */
if (hdr->substreamid > info->num_ind_sub + 1) {
ret = AVERROR(EINVAL);
@@ -475,6 +476,14 @@ static int handle_eac3(MOVMuxContext *mov, AVPacket *pkt,
MOVTrack *track)
info->substream[hdr->substreamid].acmod = hdr->channel_mode;
info->substream[hdr->substreamid].lfeon = hdr->lfe_on;
+ if (track->par->codec_id == AV_CODEC_ID_AC3) {
+ // with AC-3 we only require the information of a single packet,
+ // so we can finish as soon as the basic values of the bit stream
+ // have been set to the track's informational structure.
+ info->ec3_done = 1;
+ goto concatenate;
+ }
+
/* Parse dependent substream(s), if any */
if (pkt->size != hdr->frame_size) {
int cumul_size = hdr->frame_size;
--
2.36.1
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