Decodes the LPCM variant found in DVD-Audio AOB streams. Unlike
DVD-Video LPCM it supports up to 192 kHz sample rates and splits
channels in two channel groups, which may use different quantization.
Samples are grouped in sets of 2 samples over all channels, with the
second channel group's data stored first within each set, as 16-bit
big-endian most significant parts followed by the remaining bits.
Based on information from expired US 6,580,671 patent et al.
Signed-off-by: Kacper Michajłow <kasper93@gmail.com>
Add CUARRAY hwaccel structs (ff_<codec>_nvdec_cuarray_hwaccel) and the
corresponding AV_PIX_FMT_CUARRAY entries in each decoder's pixel format
negotiation list. This allows decoders to advertise CUARRAY as a
supported hardware output format alongside AV_PIX_FMT_CUDA.
Codecs: H.264, HEVC, AV1, MPEG-1, MPEG-2, MPEG-4, VC-1, WMV3, VP8, VP9.
Signed-off-by: Diego de Souza <ddesouza@nvidia.com>
The original plan from commit d89fbfd4df
(merged on 2024-11-25) was to remove the encoders on the then next
major version bump (i.e. the bump to lavc 62, the current version)
and to disable the decoders by default on said bump. Both did not
happen; one deadline has already passed and the other is right upon us,
so just remove all sonic codecs now.
Note: Codec IDs and descriptors are kept.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
libcelt, which it depends on, was not updated in a very long time and is
considered deprecated, as Opus exists which has a CELT mode. Therefore
remove standalone CELT decoding support.
It was already broken since b8604a9761,
11 years ago, and no one noticed and complained.
Add a native encoder for the Playdate PDV format.
Supports monob (1-bit) video, producing zlib-compressed intra frames
and XOR-based delta frames.
Includes bounds checking, overflow guards, correct linesize handling
using ptrdiff_t, and proper buffer allocation ordering.
Mark the encoder as experimental by setting AV_CODEC_CAP_EXPERIMENTAL,
since it has not been validated against Panic's official Playdate
player or SDK.
It only tests MMX (me_cmp does not have pure MMX functions any more)
and MMXEXT and is therefore x86-only. Furthermore, checkasm is superior
in every regard.
Removing it also fixes a build failure (there is no dependency of this
tool on me_cmp).
Reviewed-by: Kacper Michajłow <kasper93@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This file is becoming too bloated and hard to read, so split it into separate
files, each having codec specific methods.
This will also speed up compilation when using several concurrent jobs.
Signed-off-by: James Almer <jamrial@gmail.com>
This function is extremely small, so inlining it is appropriate (and
actually beneficial size-wise here). It furthermore allows to remove
the mpeg12codecs.h header and the mpeg12-encoders->mpeg12.o dependency.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Add a shader-based Apple ProRes decoder.
It supports all codec features for profiles up to
the 4444 XQ profile, ie.:
- 4:2:2 and 4:4:4 chroma subsampling
- 10- and 12-bit component depth
- Interlacing
- Alpha
The implementation consists in two shaders: the
VLD kernel does entropy decoding for color/alpha,
and the IDCT kernel performs the inverse transform
on color components.
Benchmarks for a 4k yuv422p10 sample:
- AMD Radeon 6700XT: 178 fps
- Intel i7 Tiger Lake: 37 fps
- NVidia Orin Nano: 70 fps
This can be easily achieved by moving code only used by the MPEG-4
decoder behind #if CONFIG_MPEG4_DECODER.
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Kacper Michajłow
Diego de Souza
James Almer
Lynne
Andreas Rheinhardt
Romain Beauxis
Marvin Scholz
Ramiro Polla
Priyanshu Thapliyal
IndecisiveTurtle
Tomasz SzumskiandJames Almer
Zhao Zhili
Araz Iusubov
averne
Stadelmann, Daniel
Paul B Mahol