* commit '1d8a0c1b43e58332a3a15c67d4adc161713cade8':
movenc: Allow to request not to use edit lists
Conflicts:
libavformat/movenc.c
See: 537ef8bebf
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Previously we wrote decoding timestamps here, while the specs
say it should be presentation timestamps.
Signed-off-by: Martin Storsjö <martin@martin.st>
When using the new first_trun flag instead of checking the track id,
we don't need to have a special case for the separate_moof flag
any longer.
This simplifies the complicated codepath ever so slightly.
Signed-off-by: Martin Storsjö <martin@martin.st>
In this case, shift tracks to start from zero instead (potentially
stretching the first sample in tracks that start later than the
first one).
Some software does not support edit lists at all, the adobe flash
player seems to be one of these. This results in AV sync errors when
edit lists are used to adjust AV sync.
Some players, such as QuickTime, don't respect the duration for
audio packets, so if an audio track starts later than the video
track and the first audio sample gets a duration longer than the
actual amount of data in it, the result will be out of sync.
Based on patches by Michael Niedermayer.
Signed-off-by: Martin Storsjö <martin@martin.st>
* commit '91e8d2eb1f7bf3af949008b106ec1ca037b88b0e':
lavf: use the format context strict_std_compliance instead of the codec one
Conflicts:
libavformat/mux.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'aae6b3b918b4133b8cc2d1631196c1d406d0351a':
movenc: Don't write any iso brands in ismv files
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'c55d1d382cd41345a79782ace41f9b43f45dca9a':
movenc: Don't write any tfdt atom for ismv files
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '00c67fe1d0bc7c2ce49daac9c80ea39d5a663b73':
movenc: Write a 0 duration in mdhd and tkhd for an empty initial moov
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'cf589faa5b7aed3bb38e08dcd00bd951e69686d1':
movenc: Add a flag for using default-base-is-moof in tfhd atoms
Conflicts:
libavformat/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
The tfdt atom shouldn't be needed in those cases, we already
write tfxd atoms for ismv anyway, which is roughly equivalent.
This avoids having to declare the iso6 brand for ismv files.
Signed-off-by: Martin Storsjö <martin@martin.st>
ISO/IEC 14496-12:2012/Cor 1:2013 is explicit about how this should be
handled. All zeros doesn't mean that the full file has got a zero
duration, only that the track samples described within the initial moov
have got zero duration. An all ones duration means an indeterminate
duration.
Keep writing a duration consisting of all ones for the ISM mode -
older windows media player versions won't play a file if this is
zero. (Newer windows media player versions play either version fine.)
Signed-off-by: Martin Storsjö <martin@martin.st>
* commit '600d5ee6b12bad144756b0772319bb04796bc528':
movenc: Signal iso6 in compatible_brands when using tfdt
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'b2b79eca6fae2466a53c5daa163a37e2474364fc':
movenc: Don't check the custom IO flag when using faststart
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '573b1de2d7f1db71030f91ecdded7d0bc071f6b6':
movenc: Don't use track_id to decide which track is the first in a moof
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Similarly to the omit_tfhd_offset flag added in e7bf085b, this
avoids writing absolute byte positions to the file, making them
more easily streamable.
This is a new feature from 14496-12:2012, so application support
isn't necessarily too widespread yet (support for it in libav was
added in 20f95f21f in July 2014).
Signed-off-by: Martin Storsjö <martin@martin.st>
The custom IO flag actually never is set for muxers, only for
demuxers, so the check was pointless (unless a user intentionally
would set the flag to signal using custom IO).
Signed-off-by: Martin Storsjö <martin@martin.st>
If one track doesn't have any samples within a moof, no traf/trun
is written for it. When the omit_tfhd_offset flag is set, none
of the tfhd atoms have any base_data_offset set, and the implicit
offset (end of previous track fragment data, or start of the moof
for the first trun) is used.
Signed-off-by: Martin Storsjö <martin@martin.st>
These allow getting the absolute start timestamp of a fragment
without reading preceding timestamps. This fixes sync between
tracks if starting from fragments in different streams that don't
align exactly.
This also is a prerequisite for producing DASH content.
Signed-off-by: Martin Storsjö <martin@martin.st>
E-AC-3 samples should contain 6 audio blocks, so concatenate syncframes
in order to achieve this.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'e44ee1eb8db7393e9d43207c2e1812720e292e6d':
movenc: Simplify code by using an existing local pointer
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'dad12ce452a9d69c0d9d53c375003947d5f1b02e':
movenc: Print a warning for an unhandled case of nonzero start dts with empty_moov
Conflicts:
libavformat/movenc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'dbb472cb2f2f799295a12b4922a6a8be2cccfdee':
movenc: Write edit lists for fragmented files as well, if necessary
Conflicts:
libavformat/movenc.c
The default for writing EDTS for fragmented mp4 is left at disabled
this can be overridden via command line with -use_editlist
but EDTS + fragments still does not fully work, which is why it is
left disabled by default
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '95ee4e2ce774e0339632d067161596bf3dadfc72':
movenc: Add some comments explaining subtle details in writing the edit lists
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '72f801619a1ae91969fee9a7d72519422433c998':
movenc: Adjust edit lists to trim out parts of tracks with negative pts
Conflicts:
libavformat/movenc.c
See: 66b45d8f7a
See: 14fd34d73b
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This is necessary to get the right timestamp offset for content
that starts with dts != 0.
This currently only helps when writing fragmented files with a non-empty
moov atom. When writing an empty moov atom, we don't have any packets
yet, so we don't know the starting dts for the tracks.
Signed-off-by: Martin Storsjö <martin@martin.st>
This makes sure that audio preroll for e.g. AAC is signaled correctly.
Previously we only wrote the edit list correctly if we had negative
dts but started with pts == 0 (e.g. for video with B-frames).
Signed-off-by: Martin Storsjö <martin@martin.st>
Support only one independent substream right now, and only syncframes
containing 6 blocks.
Fixes part of ticket #3074
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '4d55e9de27894ddfb337b28cd7aa6d14a12666d2':
vc1: Split bits used in libavformat into a separate header
Conflicts:
libavformat/movenc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
The messages regarding the recommended use of bitstream filters are somewhat different.
This also adds the ":v" stream specifier to "-bsf h264_mp4toannexb".
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
