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movenc: Add option to disable nero chapters

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And add flag to muxer documentation.
Nero chapters break some taggers (mp3tag and iTunes).

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
John Stebbins
2014-08-04 13:13:44 -07:00
committed by Luca Barbato
parent 2601a9447e
commit 0897d2fdc7
3 changed files with 8 additions and 1 deletions
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5
doc/muxers.texi
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@@ -330,6 +330,11 @@ This option is implicitly set when writing ismv (Smooth Streaming) files.
Run a second pass moving the index (moov atom) to the beginning of the file.
This operation can take a while, and will not work in various situations such
as fragmented output, thus it is not enabled by default.
@item -movflags disable_chpl
Disable Nero chapter markers (chpl atom). Normally, both Nero chapters
and a QuickTime chapter track are written to the file. With this option
set, only the QuickTime chapter track will be written. Nero chapters can
cause failures when the file is reprocessed with certain tagging programs.
@end table
Smooth Streaming content can be pushed in real time to a publishing

3
libavformat/movenc.c
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@@ -57,6 +57,7 @@ static const AVOption options[] = {
{ "isml", "Create a live smooth streaming feed (for pushing to a publishing point)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_ISML}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
{ "faststart", "Run a second pass to put the index (moov atom) at the beginning of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FASTSTART}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
{ "omit_tfhd_offset", "Omit the base data offset in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_OMIT_TFHD_OFFSET}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
{ "disable_chpl", "Disable Nero chapter atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DISABLE_CHPL}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
{ "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
{ "iods_audio_profile", "iods audio profile atom.", offsetof(MOVMuxContext, iods_audio_profile), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
@@ -2076,7 +2077,7 @@ static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
mov_write_meta_tag(pb_buf, mov, s);
}
if (s->nb_chapters)
if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
mov_write_chpl_tag(pb_buf, s);
if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {

1
libavformat/movenc.h
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@@ -175,6 +175,7 @@ typedef struct MOVMuxContext {
#define FF_MOV_FLAG_ISML 64
#define FF_MOV_FLAG_FASTSTART 128
#define FF_MOV_FLAG_OMIT_TFHD_OFFSET 256
#define FF_MOV_FLAG_DISABLE_CHPL 512
int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt);