It help initialize chroma format and other info properly
Chroma format wasn't correct if I use below code:
avformat_find_stream_info(fmtc, NULL);
iVideoStream = av_find_best_stream(fmtc, AVMEDIA_TYPE_VIDEO, -1, -1, NULL, 0);
eChromaFormat = (AVPixelFormat)fmtc->streams[iVideoStream]->codecpar->format;
Signed-off-by: James Almer <jamrial@gmail.com>
Check the return value of sscanf as it can return -1(EOF), for example
when the first char in the line is 0x00
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
ffmpeg documentation says the NUT container supports SubStation Alpha
This brings actual functionality in line with documentation.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
The write_colr flag has been marked as experimental for over 5 years.
It should be safe to enable its behavior by default as follows:
- Write the colr atom by default for mp4/mov if any of the following:
- The primaries/trc/matrix are all specified, OR
- There is an ICC profile, OR
- The user specified +write_colr
- Keep the write_colr flag for situations where the user wants to
write the colr atom even if the color info is unspecified (e.g.,
http://ffmpeg.org/pipermail/ffmpeg-devel/2020-March/259334.html)
This fixes https://trac.ffmpeg.org/ticket/7961
Signed-off-by: Michael Bradshaw <mjbshaw@google.com>
In listener mode the first fd is not closed when libsrt_close() is called
because it is overwritten by the new accept fd. Added the listen_fd to the
context to properly close it when libsrt_close() is called.
Fixes trac ticket #8372.
Signed-off-by: Nicolas Sugino <nsugino@3way.com.ar>
Signed-off-by: Marton Balint <cus@passwd.hu>
Fixes: Assertion failure
Fixes: 24612/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-6600899842277376.fuzz
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
While reading the filename tag, it may return a EOF and we are still
copying the file with uninitialized value.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
While having the possibility of non-NOPTS values that can suddenly
jump in time due to adjustments to match PCR is not nice for DVB
subtitles, apparently the parser for this format bases its behavior on
whether the packets' timestamps are NOPTS or not. Thus while we can
adjust timestamps, we should exclude DVB subtitles from the timestamp
unsetting logic.
Fixes#8844
Otherwise it might happen that invalid dimensions are used when reading
a video packet; this might lead to undefined overflow.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
The mlv demuxer supports input split into multiple files; if invalid
data is encountered when parsing one of the subsequent files, that file
is closed. But at this point some index entries belonging to this file
might already have been added. In this case, the read_packet function
might try to use the AVIOContext (which is NULL) to read data which will
of course crash. This commit fixes this.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
and remove reset_packet(). The packet's data pointer is already zeroed,
so the only thing that reset_packet() does that av_init_pkt() doesn't is
redundant.
Reviewed-by: Steven Liu <lingjiujianke@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
av_read_frame() already returns blank packets on error.
Reviewed-by: Steven Liu <lingjiujianke@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
If avio_read() returns a value of bytes read that's lower than the
expected, return an error instead. And when there are zero bytes in
the prefetch buffer, return 0 in order for the frame merge bsf to
drain all potentially buffered packets.
Missed by mistake when amending and committing 9a7bdb6d71.
Signed-off-by: James Almer <jamrial@gmail.com>
Also add and update some tests.
Change the semantic a little, because for filesytem paths
symlinks complicate things.
See the comments in the code for detail.
Fix trac tickets #8813 and 8814.
Writes color_primaries, color_trc and color_space to mxf
headers. ULs are from https://registry.smpte-ra.org/ site.
Signed-off-by: Harry Mallon <harry.mallon@codex.online>
Up until now, the TiVo demuxer parse an array of SEQ entries, yet it has
never ever made any use of them. In fact, parse_master, the function
parsing said table, only influenced the outside world in three ways: Via
an excessive amount of error message in case a certain parameter is not
what it expected; via an allocation (the aforementioned write-only
array); and by setting a certain parameter (ty->cur_chunk_pos), but that
parameter is always overwritten before it is used (it is overwritten
in get_chunk() on success and if get_chunk() fails, the error is
returned to the caller anyway). So remove the array and the function
used to parse it.
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Reviewed-by: Alexander Strasser <eclipse7@gmx.net>
Reviewed-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Zane van Iperen <zane@zanevaniperen.com>
Reviewed-by: Alexander Strasser <eclipse7@gmx.net>
Reviewed-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Zane van Iperen <zane@zanevaniperen.com>
It has no bearing on structure. Determined by looking at the ASF
files from several Argonaut games:
- FX Fighter,
- Croc,
- Croc 2,
- The Emperor's New Groove, and
- Disney's Aladdin in Nasira's Revenge
The only versions that appear are 1.1, 1.2, and 2.1, and their
structure is identical.
Reviewed-by: Alexander Strasser <eclipse7@gmx.net>
Signed-off-by: Zane van Iperen <zane@zanevaniperen.com>
Up until now, opening a section filter works as follows: A filter is
opened and (on success) attached to the MpegTSContext. Then a buffer for
said filter is allocated and upon success attached to the section
filter; on error, the filter is simply freed without removing it from
the MpegTSContext, leaving the latter in an inconsistent state. This
leads to use-after-frees lateron.
This commit fixes this by allocating the buffer first; the filter is
only opened if the buffer could be successfully allocated.
Reviewed-by: Marton Balint <cus@passwd.hu>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
fix ticket: 8783
Because in single file by encryption mode, it cannot get the last one
block of the file, it need ff_format_io_close for get full file size,
then hlsenc can get the total size of the encryption content,
so write the content into temp file first, and get the temp file content
append the temp file content into append to single file, then hlsenc can
get the correct file/content size and offset.
Signed-off-by: Steven Liu <liuqi05@kuaishou.com>
It leads to an assert in ff_read_packet().
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Reads color_primaries, color_trc and color_space from mxf
headers. ULs are from https://registry.smpte-ra.org/ site.
Signed-off-by: Harry Mallon <harry.mallon@codex.online>
This commit avoids allocating a DVDemuxContext when demuxing raw DV by
making it part of the demuxer's context. This also allows to remove
dv_read_close().
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Fixes: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'
Fixes: 24457/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5760093644390400
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
flush_put_bits() already fills the bitstream with zeroes, so it is
unnecessary to align the bitstream before.
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Also query time only once, not for every variant stream, otherwise variant
streams might get a slightly different initial program date time. And we can
set this unconditionally because HLS_PROGRAM_DATE_TIME flag is checked
elsewhere.
Signed-off-by: Marton Balint <cus@passwd.hu>
For non-PCM audio, a Smacker frame contains the size of the decoded
audio in the first four bytes of the audio packet data; for PCM data,
said information would be redundant and according to [1] this field does
not exist. Therefore this commit sets the duration and timestamps
properly for PCM audio.
[1]: https://wiki.multimedia.cx/index.php/Smacker#Audio_Track_Chunk
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Add .read_seek function to the smacker demuxer for the special case of
seeking to ts=0. This is useful because smacker – like bink, with a
similar implementation – was mostly used to encode clips in video
games, where random seeks are rare but looping media are common.
Signed-off-by: Timotej Lazar <timotej.lazar@araneo.si>
Vikas Agrawal
Limin Wang
Thierry Foucu
hax@riseup.net
Michael Bradshaw
Nicolas Sugino
Michael Niedermayer
Jan Ekström
Andreas Rheinhardt
James Almer
Xu Guangxin
Nicolas George
Harry Mallon
Zane van Iperen
Steven Liu
Marton Balint
Timotej Lazar