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avformat/movenc: allow hdlr name field to be empty

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Both QTFF and the ISOBMFF standards allow it.

Fixes #7262
This commit is contained in:
Gyan Doshi 2018-06-21 11:33:00 +05:30
parent 649d7ca477
commit deb9a04d54
3 changed files with 7 additions and 1 deletions
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5
libavformat/movenc.c
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@ -101,6 +101,7 @@ static const AVOption options[] = {
{ "write_prft", "Write producer reference time box with specified time source", offsetof(MOVMuxContext, write_prft), AV_OPT_TYPE_INT, {.i64 = MOV_PRFT_NONE}, 0, MOV_PRFT_NB-1, AV_OPT_FLAG_ENCODING_PARAM, "prft"},
{ "wallclock", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = MOV_PRFT_SRC_WALLCLOCK}, 0, 0, AV_OPT_FLAG_ENCODING_PARAM, "prft"},
{ "pts", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = MOV_PRFT_SRC_PTS}, 0, 0, AV_OPT_FLAG_ENCODING_PARAM, "prft"},
{ "empty_hdlr_name", "write zero-length name string in hdlr atoms within mdia and minf atoms", offsetof(MOVMuxContext, empty_hdlr_name), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
{ NULL },
};
@ -2551,6 +2552,7 @@ static int is_clcp_track(MOVTrack *track)
static int mov_write_hdlr_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
{
MOVMuxContext *mov = s->priv_data;
const char *hdlr, *descr = NULL, *hdlr_type = NULL;
int64_t pos = avio_tell(pb);
@ -2605,6 +2607,9 @@ static int mov_write_hdlr_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *tra
}
}
if (mov->empty_hdlr_name) /* expressly allowed by QTFF and not prohibited in ISO 14496-12 8.4.3.3 */
descr = "";
avio_wb32(pb, 0); /* size */
ffio_wfourcc(pb, "hdlr");
avio_wb32(pb, 0); /* Version & flags */

1
libavformat/movenc.h
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@ -233,6 +233,7 @@ typedef struct MOVMuxContext {
int track_ids_ok;
int write_tmcd;
MOVPrftBox write_prft;
int empty_hdlr_name;
} MOVMuxContext;
#define FF_MOV_FLAG_RTP_HINT (1 << 0)

2
libavformat/version.h
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@ -33,7 +33,7 @@
// Also please add any ticket numbers that you believe might be affected here
#define LIBAVFORMAT_VERSION_MAJOR 58
#define LIBAVFORMAT_VERSION_MINOR 17
#define LIBAVFORMAT_VERSION_MICRO 100
#define LIBAVFORMAT_VERSION_MICRO 101
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
LIBAVFORMAT_VERSION_MINOR, \