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Author SHA1 Message Date
James Almer
f632ab53d9 fftools/ffmpeg_filter: remove accidental variable shadowing 
Fixes potential uses of uninitialized variables in case of alloc failure.

Signed-off-by: James Almer <jamrial@gmail.com>
 2025-01-26 20:53:11 -03:00
James Almer
712140be75 doc/APIChanges: fix library name for a recent entry 
Signed-off-by: James Almer <jamrial@gmail.com>
 2025-01-25 21:56:49 -03:00
James Almer
4f9afbb1b2 fftools/ffmpeg_filter: reinitialize the filterchain if downmix metadata changed between frames 
Signed-off-by: James Almer <jamrial@gmail.com>
 2025-01-25 21:56:49 -03:00
James Almer
6a282cdf7e avfilter/af_aresample: propagate downmix metadata to swresample if present 
Signed-off-by: James Almer <jamrial@gmail.com>
 2025-01-25 21:56:49 -03:00
James Almer
ea3c3b42df avutil/frame: add a side data prop to signal channel layout dependent types 
Signed-off-by: James Almer <jamrial@gmail.com>
 2025-01-25 21:56:49 -03:00
James Almer
0bed1b8953 avutil/downmix_info: zero the allocated buffer 
Signed-off-by: James Almer <jamrial@gmail.com>
 2025-01-25 21:56:49 -03:00
James Almer
e61b9d4094 fftools/ffmpeg: propagate decoded_side_data from decoded streams to the filterchain 
Global side data as exported by a decoder may no longer apply if a filter in
the chain altered the frames in some form, like changing color, dimensions,
or channel layout information.
After this change, any such changes in side data will be taken into account by
the encoder futher in the process.

Signed-off-by: James Almer <jamrial@gmail.com>
 2025-01-25 21:56:49 -03:00
James Almer
6707d970c0 avfilter/buffersink: add av_buffersink_get_side_data() 
This will be used to get global side data that was propagated through the
filterchain.

Signed-off-by: James Almer <jamrial@gmail.com>
 2025-01-25 21:56:49 -03:00
James Almer
7a025e1cb5 avfilter/buffersrc: add a side_data field 
This will be used to propagate global side data through the filterchain.

Signed-off-by: James Almer <jamrial@gmail.com>
 2025-01-25 21:56:49 -03:00
James Almer
ef1cb1c9c8 avfilter/avfilter: add a side_data field to AVFilterLink 
This will be used to propagate global side data through the filterchain.

Signed-off-by: James Almer <jamrial@gmail.com>
 2025-01-25 21:56:49 -03:00
Michael Niedermayer
91d96dc8dd avformat/hls: Be more picky on extensions 
This blocks disallowed extensions from probing
It also requires all available segments to have matching extensions to the format
mpegts is treated independent of the extension

It is recommended to set the whitelists correctly
instead of depending on extensions, but this should help a bit,
and this is easier to backport

Fixes: CVE-2023-6602 II. HLS Force TTY Demuxer
Fixes: CVE-2023-6602 IV. HLS XBIN Demuxer DoS Amplification

The other parts of CVE-2023-6602 have been fixed by prior commits

Found-by: Harvey Phillips of Amazon Element55 (element55)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2025-01-26 01:12:28 +01:00
Michael Niedermayer
c733e2b5ed Revert "avformat/mpegts: Add standard extension so hls can check in extension_picky mode" 
The next commit implements the hls fix in a way that doesnt need this

This reverts commit 54897da7ce.
 2025-01-26 01:12:28 +01:00
Manuel Lauss
d68d311bcd avcodec/sanm: codec37 buffers are private 
codec37 operates on 2 buffers, which must be considered private to
the codec and must therefore not be changed by subsequent FOBJs.

Let codec37 therefore operate on frm1/2 instead of frm0/2, but copy
the decoded image to frm0 where other codecs operate on.

Fixes artifacts encountered in Full Throttle "dazed.san" and also
in a lot of Rebel Assault II gameplay videos: these videos consist of
frames with an initial codec37 FOBJ image to set the stage, and
optional codec1-23 FOBJs overlaid on top of that image.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2025-01-26 01:10:52 +01:00
Sean McGovern
4322be512b avcodec/svq1enc: restrict Altivec acceleration to big-endian POWER configurations 
This was disabled in da60b99a88 and then
accidentally re-enabled in 172b0e2e88.

The code in question was never properly adapted for litte-endian mode.

refs: trac/10955
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2025-01-26 01:10:52 +01:00
Marton Balint
ec4d3dc5b9 avcodec/mpegvideo_enc: use 64bit multiplication in dct_quantize_trellis_c and dct_quantize_c 
Fixes corruption with:

ffmpeg -t 1 -filter_complex "sine=f=21,showwaves=scale=cbrt:mode=line:colors=white:draw=full" -c:v mpeg2video -non_linear_quant 1 -qmin 1 -qmax 1 -cpuflags 0 out.mpg

or

ffmpeg -t 1 -filter_complex "sine=f=21,showwaves=scale=cbrt:mode=line:colors=white:draw=full" -c:v mpeg2video -non_linear_quant 1 -qmin 1 -qmax 1 -trellis 1 out.mpg

Signed-off-by: Marton Balint <cus@passwd.hu>
 2025-01-25 20:10:41 +01:00
Marton Balint
ed26812337 avcodec/mpegvideo_enc: fix qmat value comments 
The comments supposed to track the possible value of the qmat and qmat16
matrices, but they were not updated properly in the long history of the
mpegvideo encoder. Also they wrongly assumed the usage of built-in quantizer
matrices and linear quantization.

Signed-off-by: Marton Balint <cus@passwd.hu>
 2025-01-25 20:10:41 +01:00
Marton Balint
7d9f373984 avcodec/mpegvideo_enc: add checks for custom inter/intra/chroma matrices 
Make the checker functions available for all codecs.

Signed-off-by: Marton Balint <cus@passwd.hu>
 2025-01-25 20:10:41 +01:00
sunyuechi
a0a89efd07 Fix the tail handling in R-V V sad 
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>
 2025-01-25 09:37:45 +02:00
James Almer
e20ee9f9ae swscale/swscale: don't reject scaling when color parameters are not supported but conversion is not required 
Values in csp, prim, trc, etc, are irrelevant if there's no conversion needed.

Reviewed-by: Niklas Haas <ffmpeg@haasn.xyz>
Signed-off-by: James Almer <jamrial@gmail.com>
 2025-01-22 12:15:18 -03:00
James Almer
abdc20727c swscale/swscale: combine the input/output checks in sws_frame_setup() 
Cosmetic change in preparation for the next commit.

Signed-off-by: James Almer <jamrial@gmail.com>
 2025-01-22 12:14:57 -03:00
Michael Niedermayer
6ecc96f4d0 avformat/mxfdec: Check avio_read() success in mxf_decrypt_triplet() 
Fixes: Use of uninitialized memory
Fixes: 71444/clusterfuzz-testcase-minimized-ffmpeg_dem_MXF_fuzzer-5448597561212928

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2025-01-21 22:55:11 +01:00
Michael Niedermayer
90ff3ae976 tools/target_swr_fuzzer: do not use negative numbers of samples 
Fixes: signed integer overflow: -277109688 * 8 cannot be represented in type 'int'
Fixes: 376118159/clusterfuzz-testcase-minimized-ffmpeg_SWR_fuzzer-5884436320681984

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2025-01-21 22:55:10 +01:00
Michael Niedermayer
ef71552cf9 avcodec/huffyuvdec: Initialize whole output for decode_gray_bitstream() 
Fixes: use of uninitialized memory
Fixes: 375286238/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HYMT_fuzzer-6352546854141952

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2025-01-21 22:55:10 +01:00
Michael Niedermayer
aec2933344 avformat/iamf_reader: Initialize padding and check read in ff_iamf_read_packet() 
Fixes: Use of uninitialized memory
Fixes: 377642312/clusterfuzz-testcase-minimized-ffmpeg_dem_IAMF_fuzzer-4554550985424896

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2025-01-21 22:55:10 +01:00
Michael Niedermayer
788abe0d25 avformat/ipmovie: Check signature_buffer read 
Fixes: use of uninitilaized data
Fixes: 385167047/clusterfuzz-testcase-minimized-ffmpeg_dem_IPMOVIE_fuzzer-5941477505564672

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2025-01-21 22:55:09 +01:00
Michael Niedermayer
17b019c517 avformat/wtvdec: Initialize buf 
ff_parse_mpeg2_descriptor() reads over what is initialized
Fixes: use of uninitialized memory
Fixes: 383825645/clusterfuzz-testcase-minimized-ffmpeg_dem_WTV_fuzzer-5144130618982400

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2025-01-21 22:55:09 +01:00
Michael Niedermayer
e81d410242 avcodec/cbs_vp9: Initialize VP9RawSuperframeIndex 
Fixes: use-of-uninitialized-value
Fixes: 70907/clusterfuzz-testcase-minimized-ffmpeg_BSF_VP9_METADATA_fuzzer-6339363208757248

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2025-01-21 22:55:09 +01:00
Michael Niedermayer
49fa3f6c5b avformat/vqf: Propagate errors from add_metadata() 
Suggested-by: Marton Balint <cus@passwd.hu>
Reviewed-by: Alexander Strasser <eclipse7@gmx.net>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2025-01-21 22:55:08 +01:00
Michael Niedermayer
c43dbecbda avformat/vqf: Check avio_read() in add_metadata() 
Fixes: use of uninitialized data
Fixes: 383825642/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5380168801124352

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2025-01-21 22:55:08 +01:00
Michael Niedermayer
54897da7ce avformat/mpegts: Add standard extension so hls can check in extension_picky mode 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2025-01-21 21:06:14 +01:00
Michael Niedermayer
665b0cf3bf swscale: 16bit planar float input support 
Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2025-01-21 21:06:14 +01:00
Michael Niedermayer
62c98cdd54 avcodec/ffv1enc: Fix RCT for GBR colorspace 
It performs better when its less buggy

Compression changes for rgb_scanline_half_piz_dw_t08 (using float16 with remaping) from
56086 byte to 34371
(with a single slice its 28122 byte)

prior remap it was 188186 bytes

ACES_OT_VWG_SampleFrames/ACES_OT_VWG_SampleFrames improves too but only by a fraction of a percent

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2025-01-21 21:06:13 +01:00
Michael Niedermayer
497b205ad5 avcodec/ffv1enc: dont reset version 
resetting the version causes any previously set values to be disregarded

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2025-01-21 21:06:13 +01:00
Michael Niedermayer
0c237d6e8a avcodec/ffv1: simplify version checks with combined_version 
Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2025-01-21 21:06:13 +01:00
Michael Niedermayer
c0769e9213 libavutil/pixfmt: 16bit float support 
Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2025-01-21 21:06:12 +01:00
Lynne
5e4a510cce ffv1dec: move slice decoding into a separate function 
This simply movies all slice decoding code from decode_frame
to decode_slices; nothing more.
 2025-01-22 00:09:38 +09:00
Lynne
f75812e054 ffv1dec: move header parsing into a separate function 2025-01-22 00:09:38 +09:00
Lynne
d987feae2a ffv1dec: move slice start finding into a function 
This also cleans up and gives the code some much needed comments.
 2025-01-22 00:09:37 +09:00
Lynne
7187eadf8c ffv1dec: use dedicated pix_fmt field and call ff_get_format 
Adding support for hwaccels means that avctx->pix_fmt will indicate
hardware formats.
 2025-01-22 00:09:37 +09:00
Lynne
5c59e6ce19 vulkan: enable using .elems field for buffer content definitions 
This avoids needing to snprintf when the buffer only contains an array of a struct,
while letting the validation layers detect errors more reliably.
 2025-01-22 00:09:32 +09:00
Lingyi Kong
504df09c34 avcodec/h264: fix stride calculation in slice_table for multi-slice field video deblocking 
fix for https://trac.ffmpeg.org/ticket/11360
A new fate test case is added to validate the fix, the smaple file is located at https://trac.ffmpeg.org/attachment/ticket/11360/slice2_field_aurora4.264.

Signed-off-by: Lingyi Kong <konglingyi@visionular.com>
 2025-01-20 08:50:01 +00:00
James Almer
bb033e6910 avcodec/ac3dec: only export matrix encoding and downmix info side data when necessary 
Don't export a matrix encoding side data when there's none signaled.
And if downmixing was handled by the decoder itself, then the downmix info does
not apply to the frame.

Signed-off-by: James Almer <jamrial@gmail.com>
 2025-01-19 15:14:18 -03:00
James Almer
4563cf95ca avcodec/ac3dec: don't override existing downmix coefficient with default ones 
With this, if the eac3 dependent frame doesn't have coded downmix values when
parsed by ff_eac3_parse_header(), it will inherit the coded ones from the core
ac3 frame instead of ignoring them.

Signed-off-by: James Almer <jamrial@gmail.com>
 2025-01-19 15:14:18 -03:00
Zhao Zhili
ea381285e7 avcodec/vvc: Add support for output_corrupt/showall flags 2025-01-19 13:30:13 +08:00
James Almer
a328b219ed fate/tests/flvenc: add missing ffprobe dependency to fate-enhanced-flv-multitrack 
Reviewed-by: Timo Rothenpieler <timo@rothenpieler.org>
Signed-off-by: James Almer <jamrial@gmail.com>
 2025-01-18 18:20:52 -03:00
Timo Rothenpieler
a3e506455e avformat/flvdec: correctly skip command frame for enhanced flv 2025-01-18 21:57:02 +01:00
Timo Rothenpieler
ced9fddec0 avformat/flvdec: implement support for parsing ModEx data 2025-01-18 21:57:02 +01:00
Michael Niedermayer
4c96d6bf75 avformat/dashdec: Check whitelist 
Fixes: CVE-2023-6602, V. DASH Playlist SSRF

Found-by: Harvey Phillips of Amazon Element55 (element55)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2025-01-17 23:33:27 +01:00
Michael Niedermayer
c6c54943d1 avutil/avstring: dont mess with NULL pointers in av_match_list() 
Fixes: applying zero offset to null pointer

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2025-01-17 23:33:26 +01:00
Stefan Pöschel
2ac2ebcd76 doc/protocols: fix/improve RTP documentation 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2025-01-17 23:33:26 +01:00