Since order_hint_bits_minus_1 range is 0~7, cur_frame_hint can be
most 128. And similar return value for cbs_av1_get_relative_dist.
So if plus them and use int8_t for the result may lose its precision.
Signed-off-by: Fei Wang <fei.w.wang@intel.com>
The condition (pos < len) is always true and the
rest of the OpenCL program code would not be read, while
the maximum number of "rb" is "len - pos - 1", and then, the
maximum number of the "pos" is "len - 1".
Fixes: trac.ffmpeg.org/ticket/9217
Similar in spirit and design to 66845cffc3, but slightly simpler due
to the lack of interlaced frames in HEVC. See that commit for more
details.
For the seed value, since no specification for this appears to exist, I
semi-arbitrarily decided to base it off the POC id alone, since there's
no analog of the idr_pic_id in HEVC's I-frames. This design is stable
across remuxes and seeks, but changes for adjacent frames with a period
that's typically long enough not to be noticeable, which makes it
satisfy all of the requirements that a film grain seed should have.
Tested with and without threading, using a patch to insert film grain
metadata artificially (for lack of real files containing film grain).
Preparation for metadata changes in the following patches. Saves
having to create an extra buffer.
Signed-off-by: Zane van Iperen <zane@zanevaniperen.com>
The refactoring in 844890b1bc caused
fate-source to point out that this could be av_clip_uintp2 (or
rather av_clip_uint8).
Signed-off-by: Martin Storsjö <martin@martin.st>
High color 15-bit VQA3 video streams contain high level chunks with
only codebook updates that shouldn't be considered new frames. Now
the demuxer stores a reference to such VQFL chunks and returns them
later along with a VQFR chunk with full frame data.
correct implementation of 'cenc' encryption scheme to support
decryption of partial cipher blocks at the end of subsamples
https://www.iso.org/standard/68042.html
Signed-off-by: Nachiket Tarate <nachiket.programmer@gmail.com>
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
These will be used by HLS demuxer in case of sample decryption.
Signed-off-by: Nachiket Tarate <nachiket.programmer@gmail.com>
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
Fixes: OOM
Fixes: 39798/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_GEM_fuzzer-5611636853964800
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Fixes: out of array access
Fixes: 39736/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ARGO_fuzzer-4820016722214912
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This reverts commit 723c37d3b7.
Said commit was in preparation for auto-inserting the idet filter.
This has never happened; even if it did, the code is wrong, because
it segfaults if the filter instance doesn't have a name (having one
is not mandatory). Furthermore, it is documented for libavfilter to
not assign any semantics to the name, which this check violates.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
I spotted an interesting pattern that I didn't see before that leads to the implementation being faster.
The bit shifting table I was using before is no longer needed, and was able to remove quite a few lines.
I also add use of FMA on the AVX2 version.
f32 1920x1080 1 thread with prelut
c impl
1434012700 UNITS in lut3d->interp, 1 runs, 0 skips
1434035335 UNITS in lut3d->interp, 2 runs, 0 skips
1423615347 UNITS in lut3d->interp, 4 runs, 0 skips
1426268863 UNITS in lut3d->interp, 8 runs, 0 skips
sse2
905484420 UNITS in lut3d->interp, 1 runs, 0 skips
905659010 UNITS in lut3d->interp, 2 runs, 0 skips
915167140 UNITS in lut3d->interp, 4 runs, 0 skips
915834222 UNITS in lut3d->interp, 8 runs, 0 skips
avx
574794860 UNITS in lut3d->interp, 1 runs, 0 skips
581035090 UNITS in lut3d->interp, 2 runs, 0 skips
584116720 UNITS in lut3d->interp, 4 runs, 0 skips
581460290 UNITS in lut3d->interp, 8 runs, 0 skips
avx2
301698880 UNITS in lut3d->interp, 1 runs, 0 skips
301982880 UNITS in lut3d->interp, 2 runs, 0 skips
306962430 UNITS in lut3d->interp, 4 runs, 0 skips
305472025 UNITS in lut3d->interp, 8 runs, 0 skips
gbrap16 1920x1080 1 thread with prelut
c impl
1480894840 UNITS in lut3d->interp, 1 runs, 0 skips
1502922990 UNITS in lut3d->interp, 2 runs, 0 skips
1496114307 UNITS in lut3d->interp, 4 runs, 0 skips
1492554551 UNITS in lut3d->interp, 8 runs, 0 skips
sse2
980777180 UNITS in lut3d->interp, 1 runs, 0 skips
986121520 UNITS in lut3d->interp, 2 runs, 0 skips
986489840 UNITS in lut3d->interp, 4 runs, 0 skips
998832248 UNITS in lut3d->interp, 8 runs, 0 skips
avx
622212360 UNITS in lut3d->interp, 1 runs, 0 skips
622981160 UNITS in lut3d->interp, 2 runs, 0 skips
645396315 UNITS in lut3d->interp, 4 runs, 0 skips
641057075 UNITS in lut3d->interp, 8 runs, 0 skips
avx2
321336400 UNITS in lut3d->interp, 1 runs, 0 skips
321268920 UNITS in lut3d->interp, 2 runs, 0 skips
323459895 UNITS in lut3d->interp, 4 runs, 0 skips
324949967 UNITS in lut3d->interp, 8 runs, 0 skips
This gets rid of of rist_receiver_data_read, rist_receiver_data_block_free and rist_parse_address
these functions have been deprecated since librist release v0.2.1 and are replaced with functions
suffixed with 2.
I added a version macro check at the top of the file to ensure ffmpeg can still be compiled against
older versions.
Signed-off-by: Gijs Peskens <gijs@peskens.net>
Signed-off-by: Marton Balint <cus@passwd.hu>
The maximum allowed useful PES payload data was set to PES_packet_length, but
it is in fact smaller by the length of the PES header.
This changes how corrupt streams are packetized:
- If PES header length is bigger than PES_packet_length then the PES packet
payload will be handled as an unbound packet
- PES packets with payload across multiple MPEGTS packets will always be
splitted if with the next chunk of data the payload should exceed
PES_packet_length, previously a PES_header_length amount of excess was
allowed.
Fixes ticket #9355.
Signed-off-by: Marton Balint <cus@passwd.hu>
This renames PESContext->total_size to PESContext->PES_packet_length and keeps
it 0 for unbound packets, so its name and semantics will match the standard.
There should be no change in functionality.
Signed-off-by: Marton Balint <cus@passwd.hu>
