VAAPI needs 2 output surface for film grain frame. One used for
reference and the other used for applying film grain and pushing
to downstream.
Signed-off-by: Fei Wang <fei.w.wang@intel.com>
For film grain clip, vaapi_av1 decoder will cache additional 8
surfaces that will be used to store frames which apply film grain.
So increase the pool size by plus 8 to avoid leak of surface.
Signed-off-by: Fei Wang <fei.w.wang@intel.com>
Defined in spec 5.9.24/5.9.25. Since function void
global_motion_params(AV1DecContext *s) already updates
gm type/params, the wminvalid parameter only need to get
the value from cur_frame.gm_invalid.
Signed-off-by: Tong Wu <tong1.wu@intel.com>
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>
Limin Wang
Fei Wang
Tong Wu
Tsutomu Seki
Paul B Mahol
Niklas Haas
Zane van Iperen
Wu Jianhua
James Almer
Martin Storsjö
Pekka Väänänen
Soft Works
Mark Reid
Nachiket Tarate
Michael Niedermayer