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lavf/movenc: support GPMF track (gpmd) remuxing

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See https://github.com/gopro/gpmf-parser for more information on the
data stream itself.
This commit is contained in:
Clément Bœsch 2017-07-21 10:30:19 +02:00 committed by Clément Bœsch
parent f21457f8e0
commit 850a45aef1
2 changed files with 30 additions and 0 deletions
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25
libavformat/movenc.c
View File

@ -2060,6 +2060,18 @@ static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
return update_size(pb, pos);
}
static int mov_write_gpmd_tag(AVIOContext *pb, const MOVTrack *track)
{
int64_t pos = avio_tell(pb);
avio_wb32(pb, 0); /* size */
ffio_wfourcc(pb, "gpmd");
avio_wb32(pb, 0); /* Reserved */
avio_wb16(pb, 0); /* Reserved */
avio_wb16(pb, 1); /* Data-reference index */
avio_wb32(pb, 0); /* Reserved */
return update_size(pb, pos);
}
static int mov_write_stsd_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
{
int64_t pos = avio_tell(pb);
@ -2077,6 +2089,8 @@ static int mov_write_stsd_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext
mov_write_rtp_tag(pb, track);
else if (track->par->codec_tag == MKTAG('t','m','c','d'))
mov_write_tmcd_tag(pb, track);
else if (track->par->codec_tag == MKTAG('g','p','m','d'))
mov_write_gpmd_tag(pb, track);
return update_size(pb, pos);
}
@ -2377,6 +2391,12 @@ static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
ffio_wfourcc(pb, "tmcd");
mov_write_tcmi_tag(pb, track);
update_size(pb, tmcd_pos);
} else if (track->par->codec_tag == MKTAG('g','p','m','d')) {
int64_t gpmd_pos = avio_tell(pb);
avio_wb32(pb, 0); /* size */
ffio_wfourcc(pb, "gpmd");
avio_wb32(pb, 0); /* version */
update_size(pb, gpmd_pos);
}
return update_size(pb, pos);
}
@ -2443,6 +2463,9 @@ static int mov_write_hdlr_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *tra
} else if (track->par->codec_tag == MKTAG('t','m','c','d')) {
hdlr_type = "tmcd";
descr = "TimeCodeHandler";
} else if (track->par->codec_tag == MKTAG('g','p','m','d')) {
hdlr_type = "meta";
descr = "GoPro MET"; // GoPro Metadata
} else {
av_log(s, AV_LOG_WARNING,
"Unknown hldr_type for %s, writing dummy values\n",
@ -2514,6 +2537,8 @@ static int mov_write_minf_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext
mov_write_nmhd_tag(pb);
else
mov_write_gmhd_tag(pb, track);
} else if (track->tag == MKTAG('g','p','m','d')) {
mov_write_gmhd_tag(pb, track);
}
if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
mov_write_hdlr_tag(s, pb, NULL);

5
tests/fate/mov.mak
View File

@ -6,6 +6,7 @@ FATE_MOV = fate-mov-3elist \
fate-mov-1elist-ends-last-bframe \
fate-mov-2elist-elist1-ends-bframe \
fate-mov-3elist-encrypted \
fate-mov-gpmf-remux \
FATE_MOV_FFPROBE = fate-mov-aac-2048-priming \
fate-mov-zombie \
@ -47,3 +48,7 @@ fate-mov-init-nonkeyframe: CMD = run ffprobe$(PROGSSUF)$(EXESUF) -show_packets -
fate-mov-displaymatrix: CMD = run ffprobe$(PROGSSUF)$(EXESUF) -show_entries stream=display_aspect_ratio,sample_aspect_ratio:stream_side_data_list -select_streams v -v 0 $(TARGET_SAMPLES)/mov/displaymatrix.mov
fate-mov-spherical-mono: CMD = run ffprobe$(PROGSSUF)$(EXESUF) -show_entries stream_side_data_list -select_streams v -v 0 $(TARGET_SAMPLES)/mov/spherical.mov
fate-mov-gpmf-remux: CMD = md5 -i $(TARGET_SAMPLES)/mov/fake-gp-media-with-real-gpmf.mp4 -map 0 -c copy -fflags +bitexact -f mp4
fate-mov-gpmf-remux: CMP = oneline
fate-mov-gpmf-remux: REF = 8f48e435ee1f6b7e173ea756141eabf3