FFmpeg

Commit Graph

Author	SHA1	Message	Date
Paul B Mahol	7bb0afc245	avutil: add RGBA single-float precision packed formats	2 years ago
Paul B Mahol	63bb6d6a9b	avutil: add RGB single-precision float formats	2 years ago
Philip Langdale	d75c4693fe	lavu/pixfmt: Add P012, Y212, XV30, and XV36 formats These are the formats we want/need to use when dealing with the Intel VAAPI decoder for 12bit 4:2:0, 12bit 4:2:2, 10bit 4:4:4 and 12bit 4:4:4 respectively. As with the already supported Y210 and YUVX (XVUY) formats, they are based on formats Microsoft picked as their preferred 4:2:2 and 4:4:4 video formats, and Intel ran with it. P12 and Y212 are simply an extension of 10 bit formats to say 12 bits will be used, with 4 unused bits instead of 6. XV30, and XV36, as exotic as they sound, are variants of Y410 and Y412 where the alpha channel is left formally undefined. We prefer these over the alpha versions because the hardware cannot actually do anything with the alpha channel and respecting it is just overhead. Y412/XV46 is a normal looking packed 4 channel format where each channel is 16bits wide but only the 12msb are used (like P012). Y410/XV30 packs three 10bit channels in 32bits with 2bits of alpha, like A/X2RGB10 style formats. This annoying layout forced me to define the BE version as a bitstream format. It seems like our pixdesc infrastructure can handle the LE version being byte-defined, but not when it's reversed. If there's a better way to handle this, please let me know. Our existing X2 formats all have the 2 bits at the MSB end, but this format places them at the LSB end and that seems to be the root of the problem.	2 years ago
Philip Langdale	cc5a5c9860	lavu/pixfmt: Introduce VUYX format This is the alphaless version of VUYA that I introduced recently. After further discussion and noting that the Intel vaapi driver explicitly lists XYUV as a support format for encoding and decoding 8bit 444 content, we decided to switch our usage and avoid the overhead of having a declared alpha channel around. Note that I am not removing VUYA, as this turned out to have another use, which was to replace the need for v408enc/dec when dealing with the format. The vaapi switching will happen in the next change	2 years ago
Timo Rothenpieler	e95b08a7dd	lavu/pixfmt: add packed RGBA float16 format This is the default format of the Windows compositor and what DXGI Desktop Duplication will give you for any kind of HDR output.	2 years ago
Philip Langdale	6ab8a9d375	lavu/pixfmt: Add packed 4:4:4 format The "AYUV" format is defined by Microsoft as their preferred format for 4:4:4 content, and so it is the format used by Intel VAAPI and QSV. As Microsoft like to define their byte ordering in little-endian fashion, the memory order is reversed, and so our pix_fmt, which follows memory order, has a reversed name (VUYA).	2 years ago
rcombs	b2cd1fb2ec	lavu/pixfmt: add high-bit-depth semi-planar 4:2:2/4:4:4 formats These are used by VideoToolbox hardware decoders.	3 years ago
Manuel Stoeckl	0760d9153c	lavu/pix_fmt: add pixel format for x2bgr10 The new format (given in big/little endian forms) matches the existing X2RGB10 format, except with B and R channels switched. AV_PIX_FMT_X2BGR10 data often is created by OpenGL programs whose buffers use the GL_RGB10 internal format. Signed-off-by: Manuel Stoeckl <code@mstoeckl.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	3 years ago
Andreas Rheinhardt	985c0dac67	avutil/pixdesc: Remove deprecated AV_PIX_FMT_FLAG_PSEUDOPAL Deprecated in `d6fc031caf`. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com> Signed-off-by: James Almer <jamrial@gmail.com>	4 years ago
James Almer	134a48a880	tests/imgutils: test the output of av_image_fill_* functions Signed-off-by: James Almer <jamrial@gmail.com>	4 years ago
Michael Niedermayer	1b39a30247	fate: add av_image_check_size() test Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago

11 Commits (d82e30d0d18b665634d7ae441727a54082465a8c)