Add the ASTC codec ID and descriptor together with encoder and decoder
wrappers for Arm's astc-encoder library. Support the four ASTC profiles,
2D and 3D block footprints, LDR RGB/RGBA input, and floating-point HDR
input without clamping the decoded result to 8-bit.
Keep the ASTC image dimensions and compressed block sizes bounded by the
format and packet limits, and pass KTX-provided color profile metadata to
the decoder when no explicit profile was selected.
libastcenc is distributed under the Apache License 2.0, so the library is
only available when FFmpeg is built with --enable-version3; list it with
the other libraries that require that option.
Signed-off-by: Jun Zhao <barryjzhao@tencent.com>
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>
This creates a new codec id for mxf vbi_vanc_smpte_436M streams.
This makes it easier to use from other [de]muxers and bitstream filters.
It's just the data in Table 7 (starts on page 13) of:
https://pub.smpte.org/latest/st436/s436m-2006.pdf
Signed-off-by: Jacob Lifshay <programmerjake@gmail.com>
IVTV, a Linux driver for TV tuners, and V4L2 utilize
a coding named after IVTV to carry sliced VBI data
in MPEG streams produced by tuner cards with
VBI capture capability and an MPEG-2 encoder SoC.
IVTV or V4L2 driver will transport the coded data into a
MPEG-PS private stream ("IVTV") that can be captured
from the card alongside the video/audio.
The data could include:
EIA-608, Teletext, WSS (PAL widescreen signaling),
or VPS (PAL VCR signaling).
Signed-off-by: Marth64 <marth64@proxyid.net>
libjxl supports animated encoding, so we add a wrapper to the
library using the receive_packet callback method.
This code was based largely on a patch sent by Zsolt Vadász,
although it was updated to use more recent coding practices
and many of the leaks and issues were fixed.
Reviewed-by: Marth64 <marth64@proxyid.net>
Co-authored-by: Zsolt Vadász <zsolt_vadasz@protonmail.com>
Signed-off-by: Leo Izen <leo.izen@gmail.com>
Added prerequisites that must be met before providing support for the MPEG-5 EVC codec
- Added new entry to codec IDs list
- Added new entry to the codec descriptor list
- Bumped libavcodec minor version
- Added profiles for EVC codec
Signed-off-by: Dawid Kozinski <d.kozinski@samsung.com>
Signed-off-by: James Almer <jamrial@gmail.com>
Tom Needham