MicroDVD files are normally frame-based (i.e. there are no absolute
timestamps), but can have an optional frame rate header. If this
header is missing, the timestamps depend on the frame rate of the
video they were created for.
The demuxer will use a fallback frame rate if it's missing from the
header. Currently, applications using libavformat can't know whether
the time base is based on the fallback value, or if a frame rate
header was present.
This commit introduces a subfps AVOption for MicroDVD, and the
demuxer sets it if and only if a frame rate header was present.
Signed-off-by: Clément Bœsch <u@pkh.me>
The BOM is already skipped in the probe function, but not the header
read function. This could cause the header to be misparsed, such as
not interpreting the FPS line.
When using the wrap option the EXT-X-MEDIA-SEQUENCE header of the playlist file was reset instead of being incremented.
It is now incremented by one for every media URI removed from the playlist file as the standard states.
Signed-off-by: Willy Aubry <waubry@viotech.net>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
With cli usage the decoder might have not set the colorspace during
encoder init, manual colorspace override might be needed in such
cases.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
This applies commit 5de64bb3 (the source of the above commit message)
to libutvideoenc as well.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes out of array read
Fixes: 387713a12dc5cfa27fcb4178084ce1ea-asan_stack-oob_131176a_1182_cov_3861068719_CAINIT_C_SHARP_3.bit
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes out of array accesses
This should not affect any release
Fixes: 8ab69af9e5a7a7e20fe04cdd25c0d6e7-asan_heap-oob_e72b82_5505_cov_2278389485_g2m4.wmv
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This reverts commit f65afef1df.
If only pts is coded then dts must be equal pts
See Rec. ITU-T H.222.0 (06/2012) / ISO/IEC 13818-1:2013 (E) 2.7.5
Found-by: Baptiste Coudurier
This reverts the changes 6467209836
and 68c3ed936a did to the SSE2 version,
which generated a hit of about 5 cycles.
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes out of array read
Fixes: 34260c7981118fb38fba61809bf4dd5a-asan_heap-oob_93b923_1508_cov_951051643_DivX640x480_oggvorbis.avi
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes out of array read
Fixes: 0ff9841c2a102f06e0d582bfc3376cbd-asan_heap-oob_495589_6836_cov_1763916974_mewmew_ssa.avi
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Sandy Bridge Win64:
180 cycles on ff_synth_filter_inner_sse2
150 cycles on ff_synth_filter_inner_avx
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Avoid a division by 0 in ff_mpeg4_set_one_direct_mv.
Sample-Id: 00000168-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
* qatar/master:
qt-faststart: Add a note about the -movflags +faststart feature
Conflicts:
tools/qt-faststart.c
See: 2574d62d0d
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'bb95334c34d0d9abccea370ae25c4765d7764ab8':
qt-faststart: Check offset_count before reading from the moov_atom buffer
Conflicts:
tools/qt-faststart.c
See: 0ea4742341
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'ea15a9a5d8fa6a71af3101b2af18c4dcac07987f':
qt-faststart: Simplify code by using a MIN() macro
Conflicts:
tools/qt-faststart.c
See: 59003fe7c0
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'd1f9563d502037239185c11578cc614bdf0c5870':
pthread_frame: flush all threads on flush, not just the first one
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'bc6461c2861b7d482a037d3b3e2b44ad48805fa0':
af_compand: replace strtok_r() with av_get_token()
Conflicts:
configure
libavfilter/af_compand.c
Not merged as requested by ubitux
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'fb3b2f5d923a6e19d80f21eb4e081674bceec810':
configure: Set the thread type after resolving dependencies
Conflicts:
configure
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '2f02bbcca050936686482453078e83dc25493da0':
build: Let the ffvhuff decoder/encoder depend on the huffyuv decoder/encoder
Conflicts:
configure
libavcodec/Makefile
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '34150be515cd9c43b0b679806b8d01774960af78':
build: Let the iac decoder depend on the imc decoder
Conflicts:
configure
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '8e0cf39faf02536dca08f4fe628a66d1ae022fde':
build: Let all MJPEG-related decoders depend on the MJPEG decoder
Conflicts:
configure
libavcodec/Makefile
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '0a36988e48dd581d29e77f768f987738bdf365f0':
build: Let AMV decoder depend on the SP5X decoder
Conflicts:
configure
libavcodec/Makefile
Merged-by: Michael Niedermayer <michaelni@gmx.at>
