Doxygen only associates this comment with "pts_correction_num_faulty_pts",
causing it to display incorrectly.
Signed-off-by: Andrew Sayers <ffmpeg-devel@pileofstuff.org>
Doxygen eats the newline in the first comment, making it harder to read.
Join the lines and add a comma, so source and documentation are equally readable.
Doxygen only associates the second comment with cust_dec.
The comments for cust_dec and cust_tab make perfect sense without it,
so downgrade it to a non-doxygen "//" comment.
The third comment was missed by the command in the previous commit,
because it (correctly but uniquely) doesn't have a trailing comma.
Signed-off-by: Andrew Sayers <ffmpeg-devel@pileofstuff.org>
libavcodec/vvc/vvc_inter.c:823:18: runtime error: signed integer overflow: 1426128896 + 1426128896 cannot be represented in type 'int'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior libavcodec/vvc/vvc_inter.c:823:18
Suggested-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
The following cases should set bs to 1:
If the prediction modes are not the same.
If both prediction modes are MODE_IBC, but the motion vector delta is larger than 8 of 1/16 pixels.
see 8.8.3.5
How to reproduce it:
vvencapp -i sintel_trailer_2k_1080p24.y4m --preset fast --additional "IBC=1" -o sintel.266
ffmpeg -i sintel.266 -f md5 -
md5 will mismatch
Found-by: 6ws at https://github.com/ffvvc/FFmpeg/issues/187#issuecomment-1962842135
This will allow to make aac_defines.h decoder-only.
Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
And move compute_ref_coefs() to its only user: lpc.c
There is no overlap between the users of compute_lpc_coefs()
and lpc proper.
Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
It leads to defines for the AAC decoder being included
outside of the AAC decoder.
Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
ff_vk_codec_map currently is an array indexed by AVCodecID;
it has AV_CODEC_ID_FIRST_AUDIO (= 65536) entries, but uses
only three of them; only 24B of 1MiB were actually used
This commit fixes this by adding an AVCodecID field to the table
and making it non-sparse.
Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Fixes: division by 0
Fixes: 67008/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VVC_fuzzer-5873503163187200
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Otherwise vvc_intra.o gets pulled in by the vvc_mc checkasm
test and it in turn pulls vvc_ctu.o and then the rest of vvcdec
and lavc in. Besides being bad size-wise this also has the downside
that it pulls in avpriv_(cga|vga16)_font from libavutil which are
marked as being imported from another library when building
libavcodec as a DLL and this breaks checkasm because it links
both lavc and lavu statically.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Otherwise svq1enc.o gets pulled in by the svq1encdsp checkasm
test and it in turn pulls the rest of lavc in.
Besides being bad size-wise this also has the downside that
it pulls in avpriv_(cga|vga16)_font from libavutil which are
marked as being imported from another library when building
libavcodec as a DLL and this breaks checkasm because it links
both lavc and lavu statically.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Otherwise aacenc.o gets pulled in by the aacencdsp checkasm
test and it in turn pulls the rest of lavc in.
Besides being bad size-wise this also has the downside that
it pulls in avpriv_(cga|vga16)_font from libavutil which are
marked as being imported from another library when building
libavcodec as a DLL and this breaks checkasm because it links
both lavc and lavu statically.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This BSF is supposed to be used in conjunction with mp3_header_compress,
which has been removed more than ten years ago in commit
c6080d8900. It mangled the headers
by removing the CRC field as well as fields that are supposed
to stay constant for the entirety of a stream (which are put into
extradata). This made these files unplayable; they need to be
decompressed with the BSF first (which does not happen automatically).
Even in this case the CRC does not get restored.
I am not aware that such compressed files exist at all; therefore
this commit removes the BSF completely.
Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
It was always intended that the buffers returned by
RefStruct shall have the same alignment guarantees
as the buffers returned by av_malloc(); said alignment
depends upon the arch and the enabled instruction set
and the code used STRIDE_ALIGN as a proxy for this.
Yet since 7945d30e91
there is a better way to get av_malloc's alignment:
ALIGN_64 in mem_internal.h. So use this.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Cloning a packet whose source is going to be unreferenced
immediately afterwards is wasteful.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This decoder uses av_image_copy() to copy decoded images
to buffers obtained via ff_get_buffer(); ergo it can handle
user-provided buffers.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This decoder implements the receive_frame API; such decoders
always have to set the pkt_dts field themselves and the avcodec
test checks for this.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Fixes errors when opening streams with no extradata (like those from raw OBU
sources). It also calls get_format() on new Sequence Headers when required.
Signed-off-by: James Almer <jamrial@gmail.com>
Commit 900ce6f8c3 replaced
IntraX8Context.ac_vlc by IntraX8Context.ac_vlc_table,
but forgot to update an av_assert2()*.
cf7ed01938 then
replaced this with a check for j_ac_vlc[mode],
but this makes no sense as j_ac_vlc is of type
const VLCElem [2][2][8][].
Worse yet, mode can be up to three and then
j_ac_vlc[mode] is undefined behaviour. This happened
during the wmv8-x8intra FATE test.
*: Since 84f16bb5e6
config.h was no longer auto-included in avassert.h
and this disabled av_assert1() and av_assert2()
in files where config.h has not been included before
the inclusion of avassert.h.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
So that can show OBU info even it doesn't have decomposed content. And
add OBU content status into the message.
Signed-off-by: Fei Wang <fei.w.wang@intel.com>
Benched using single-threaded full decode on an Ampere Altra.
Bpp Before After Speedup
8 73,3s 65,2s 1.124x
10 114,2s 104,0s 1.098x
12 125,8s 115,7s 1.087x
Signed-off-by: J. Dekker <jdek@itanimul.li>
Fixes the dxv3enc-dxt1 FATE test with UBSan and on big-endian
hardware.
Reviewed-by: James Almer <jamrial@gmail.com>
Tested-by: Sean McGovern <gseanmcg@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
The AAC decoders share no common code with the AAC encoder,
so they are not restricted to using the same structures.
This implies that one can use different structs for each
component and remove elements not used by the decoders/
the encoder. This leads to quite sizeable savings:
sizeof(ChannelElement) for the encoder went down to 134432B
here from 547552B; for the decoder it went down to 512800B.
Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Zhao Zhili
Andrew Sayers
Nuo Mi
Andreas Rheinhardt
Michael Niedermayer
James Almer
Haihao Xiang
Fei Wang
J. Dekker
Cosmin Stejerean
sunyuechi