| Message ID | CABSox7g0iqmvBxogj23z8EhAVbBnAXE9w6NWHLo6UUf6TvAH+w@mail.gmail.com |
|---|---|
| State | Superseded |
| Headers | show |
Hi, On 8/17/16, Umair Khan <omerjerk@gmail.com> wrote: > Hi, > > Patch attached. > > I hope this is the cleanest solution. :) Looks much cleaner. Thanks.
On 8/17/2016 3:59 PM, Umair Khan wrote: > Hi, > > Patch attached. > > I hope this is the cleanest solution. :) > > - Umair > > > patch.diff > > > From be04357d54897173b1776ed92ab8347b3cdffd46 Mon Sep 17 00:00:00 2001 > From: Umair Khan <omerjerk@gmail.com> > Date: Thu, 18 Aug 2016 00:27:42 +0530 > Subject: [PATCH] avformat/movenc: allow rewriting extradata > > Signed-off-by: Umair Khan <omerjerk@gmail.com> > --- > libavformat/movenc.c | 30 ++++++++++++++++++++++++++++++ > libavformat/movenc.h | 2 ++ > 2 files changed, 32 insertions(+) > > diff --git a/libavformat/movenc.c b/libavformat/movenc.c > index 14db880..b33f24c 100644 > --- a/libavformat/movenc.c > +++ b/libavformat/movenc.c > @@ -4919,6 +4919,19 @@ static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt) > trk->start_cts = pkt->pts - pkt->dts; > else > trk->start_cts = 0; > + } > + > + if (trk->par->codec_id == AV_CODEC_ID_MP4ALS) { > + int side_size = 0; > + uint8_t *side = av_packet_get_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA, &side_size); > + av_log(s, AV_LOG_ERROR, "side_size = %d\n", side_size); I'm not sure this is useful at all, but if you think it is then make it either AV_ERROR_VERBOSE or AV_ERROR_DEBUG.
On Thu, Aug 18, 2016 at 1:28 AM, James Almer <jamrial@gmail.com> wrote: > On 8/17/2016 3:59 PM, Umair Khan wrote: >> Hi, >> >> Patch attached. >> >> I hope this is the cleanest solution. :) >> >> - Umair >> >> >> patch.diff >> >> >> From be04357d54897173b1776ed92ab8347b3cdffd46 Mon Sep 17 00:00:00 2001 >> From: Umair Khan <omerjerk@gmail.com> >> Date: Thu, 18 Aug 2016 00:27:42 +0530 >> Subject: [PATCH] avformat/movenc: allow rewriting extradata >> >> Signed-off-by: Umair Khan <omerjerk@gmail.com> >> --- >> libavformat/movenc.c | 30 ++++++++++++++++++++++++++++++ >> libavformat/movenc.h | 2 ++ >> 2 files changed, 32 insertions(+) >> >> diff --git a/libavformat/movenc.c b/libavformat/movenc.c >> index 14db880..b33f24c 100644 >> --- a/libavformat/movenc.c >> +++ b/libavformat/movenc.c >> @@ -4919,6 +4919,19 @@ static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt) >> trk->start_cts = pkt->pts - pkt->dts; >> else >> trk->start_cts = 0; >> + } >> + >> + if (trk->par->codec_id == AV_CODEC_ID_MP4ALS) { >> + int side_size = 0; >> + uint8_t *side = av_packet_get_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA, &side_size); >> + av_log(s, AV_LOG_ERROR, "side_size = %d\n", side_size); > > I'm not sure this is useful at all, but if you think it is > then make it either AV_ERROR_VERBOSE or AV_ERROR_DEBUG. Sorry for this. I overlooked it. I'll resend the patch. - Umair
diff --git a/libavformat/movenc.c b/libavformat/movenc.c index 14db880..b33f24c 100644 --- a/libavformat/movenc.c +++ b/libavformat/movenc.c @@ -4919,6 +4919,19 @@ static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt) trk->start_cts = pkt->pts - pkt->dts; else trk->start_cts = 0; + } + + if (trk->par->codec_id == AV_CODEC_ID_MP4ALS) { + int side_size = 0; + uint8_t *side = av_packet_get_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA, &side_size); + av_log(s, AV_LOG_ERROR, "side_size = %d\n", side_size); + if (side && side_size > 0 && (side_size != par->extradata_size || memcmp(side, par->extradata, side_size))) { + av_free(par->extradata); + par->extradata = av_mallocz(side_size + AV_INPUT_BUFFER_PADDING_SIZE); + memcpy(par->extradata, side, side_size); + par->extradata_size = side_size; + mov->need_rewrite_extradata = 1; + } } return 0; /* Discard 0 sized packets */ @@ -5923,6 +5936,23 @@ static int mov_write_trailer(AVFormatContext *s) int i; int64_t moov_pos; + if (mov->need_rewrite_extradata) { + for (i = 0; i < s->nb_streams; i++) { + AVStream *st= s->streams[i]; + MOVTrack *track= &mov->tracks[i]; + AVCodecParameters *par = track->par; + + track->vos_len = par->extradata_size; + track->vos_data = av_malloc(track->vos_len); + if (!track->vos_data) { + AVERROR(ENOMEM); + goto error; + } + memcpy(track->vos_data, par->extradata, track->vos_len); + } + mov->need_rewrite_extradata = 0; + } + /* * Before actually writing the trailer, make sure that there are no * dangling subtitles, that need a terminating sample. diff --git a/libavformat/movenc.h b/libavformat/movenc.h index 6e9f5ac..894a1b0 100644 --- a/libavformat/movenc.h +++ b/libavformat/movenc.h @@ -215,6 +215,8 @@ typedef struct MOVMuxContext { uint8_t *encryption_kid; int encryption_kid_len; + int need_rewrite_extradata; + } MOVMuxContext; #define FF_MOV_FLAG_RTP_HINT (1 << 0)