mirror of
https://github.com/mpv-player/mpv
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249 lines
8.3 KiB
C
249 lines
8.3 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MPLAYER_IMG_FORMAT_H
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#define MPLAYER_IMG_FORMAT_H
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#include <inttypes.h>
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#include "osdep/endian.h"
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#include "misc/bstr.h"
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#if BYTE_ORDER == BIG_ENDIAN
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#define MP_SELECT_LE_BE(LE, BE) BE
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#else
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#define MP_SELECT_LE_BE(LE, BE) LE
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#endif
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#define MP_MAX_PLANES 4
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// All pixels start in byte boundaries
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#define MP_IMGFLAG_BYTE_ALIGNED 0x1
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// set if (possibly) alpha is included (might be not definitive for packed RGB)
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#define MP_IMGFLAG_ALPHA 0x80
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// Uses one component per plane (set even if it's just one plane)
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#define MP_IMGFLAG_PLANAR 0x100
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// set if it's YUV colorspace
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#define MP_IMGFLAG_YUV 0x200
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// set if it's RGB colorspace
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#define MP_IMGFLAG_RGB 0x400
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// set if it's XYZ colorspace
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#define MP_IMGFLAG_XYZ 0x800
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// set if the format is in a standard YUV format:
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// - planar and yuv colorspace
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// - chroma shift 0-2
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// - 1-4 planes (1: gray, 2: gray/alpha, 3: yuv, 4: yuv/alpha)
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// - 8-16 bit per pixel/plane, all planes have same depth,
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// each plane has exactly one component
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#define MP_IMGFLAG_YUV_P 0x1000
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// set if in little endian, or endian independent
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#define MP_IMGFLAG_LE 0x2000
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// set if in big endian, or endian independent
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#define MP_IMGFLAG_BE 0x4000
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// set if in native (host) endian, or endian independent
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#define MP_IMGFLAG_NE MP_SELECT_LE_BE(MP_IMGFLAG_LE, MP_IMGFLAG_BE)
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// Carries a palette in plane[1] (see IMGFMT_PAL8 for format of the palette).
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// Note that some non-paletted formats have this flag set, because FFmpeg
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// mysteriously expects some formats to carry a palette plane for no apparent
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// reason. FFmpeg developer braindeath?
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// The only real paletted format we support is IMGFMT_PAL8, so check for that
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// format directly if you want an actual paletted format.
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#define MP_IMGFLAG_PAL 0x8000
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// planes don't contain real data; planes[3] contains an API-specific pointer
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#define MP_IMGFLAG_HWACCEL 0x10000
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// Set if the chroma resolution is lower than luma resolution. Unset for non-YUV.
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#define MP_IMGFLAG_SUBSAMPLED 0x20000
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// Exactly one of these bits is set in mp_imgfmt_desc.flags
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#define MP_IMGFLAG_COLOR_CLASS_MASK \
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(MP_IMGFLAG_YUV | MP_IMGFLAG_RGB | MP_IMGFLAG_XYZ)
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struct mp_imgfmt_desc {
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int id; // IMGFMT_*
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int avformat; // AV_PIX_FMT_* (or AV_PIX_FMT_NONE)
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int flags; // MP_IMGFLAG_* bitfield
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int8_t num_planes;
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int8_t chroma_xs, chroma_ys; // chroma shift (i.e. log2 of chroma pixel size)
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int8_t align_x, align_y; // pixel size to get byte alignment and to get
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// to a pixel pos where luma & chroma aligns
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int8_t bytes[MP_MAX_PLANES]; // bytes per pixel (MP_IMGFLAG_BYTE_ALIGNED)
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int8_t bpp[MP_MAX_PLANES]; // bits per pixel
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int8_t plane_bits; // number of bits in use for plane 0
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int8_t component_bits; // number of bits per component (0 if uneven)
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// chroma shifts per plane (provided for convenience with planar formats)
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int8_t xs[MP_MAX_PLANES];
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int8_t ys[MP_MAX_PLANES];
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};
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struct mp_imgfmt_desc mp_imgfmt_get_desc(int imgfmt);
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enum mp_imgfmt {
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IMGFMT_NONE = 0,
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// Offset to make confusing with ffmpeg formats harder
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IMGFMT_START = 1000,
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// Planar YUV formats
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IMGFMT_444P, // 1x1
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IMGFMT_422P, // 2x1
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IMGFMT_440P, // 1x2
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IMGFMT_420P, // 2x2
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IMGFMT_411P, // 4x1
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IMGFMT_410P, // 4x4
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// YUV formats with 2 bytes per plane-pixel. Formats with 9-15 bits pad the
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// most significant bits with 0 (use shifts to expand them to 16 bits).
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IMGFMT_444P16,
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IMGFMT_444P14,
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IMGFMT_444P12,
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IMGFMT_444P10,
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IMGFMT_444P9,
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IMGFMT_422P16,
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IMGFMT_422P14,
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IMGFMT_422P12,
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IMGFMT_422P10,
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IMGFMT_422P9,
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IMGFMT_420P16,
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IMGFMT_420P14,
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IMGFMT_420P12,
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IMGFMT_420P10,
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IMGFMT_420P9,
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// Planar YUV with alpha (4th plane)
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IMGFMT_444AP,
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IMGFMT_422AP,
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IMGFMT_420AP,
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// Gray
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IMGFMT_Y8,
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IMGFMT_Y16,
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// Gray with alpha (packed)
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IMGFMT_YA8,
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IMGFMT_YA16,
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// Packed YUV formats (components are byte-accessed)
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IMGFMT_YUYV, // Y0 U Y1 V
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IMGFMT_UYVY, // U Y0 V Y1
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// Y plane + packed plane for chroma
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IMGFMT_NV12,
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IMGFMT_NV21,
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// RGB/BGR Formats
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// Byte accessed (low address to high address)
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IMGFMT_ARGB,
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IMGFMT_BGRA,
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IMGFMT_ABGR,
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IMGFMT_RGBA,
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IMGFMT_BGR24, // 3 bytes per pixel
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IMGFMT_RGB24,
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IMGFMT_RGB48, // 6 bytes per pixel, uint16_t channels
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IMGFMT_RGBA64, // 8 bytes per pixel, uint16_t channels
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IMGFMT_BGRA64,
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// Like e.g. IMGFMT_ARGB, but has a padding byte instead of alpha
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IMGFMT_0RGB,
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IMGFMT_BGR0,
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IMGFMT_0BGR,
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IMGFMT_RGB0,
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IMGFMT_RGB0_START = IMGFMT_0RGB,
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IMGFMT_RGB0_END = IMGFMT_RGB0,
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// Accessed with bit-shifts (components ordered from MSB to LSB)
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IMGFMT_BGR8, // r3 g3 b2
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IMGFMT_RGB8,
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IMGFMT_BGR4_BYTE, // r1 g2 b1 with 1 pixel per byte
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IMGFMT_RGB4_BYTE,
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IMGFMT_BGR4, // r1 g2 b1, bit-packed
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IMGFMT_RGB4,
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IMGFMT_MONO, // 1 bit per pixel, bit-packed
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IMGFMT_MONO_W, // like IMGFMT_MONO, but inverted (white pixels)
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// Accessed with bit-shifts after endian-swapping the uint16_t pixel
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IMGFMT_RGB444, // 4r 4g 4b 4a (MSB to LSB)
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IMGFMT_RGB555, // 5r 5g 5b 1a
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IMGFMT_RGB565, // 5r 6g 5b
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IMGFMT_BGR444, // 4b 4r 4g 4a
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IMGFMT_BGR555, // 5b 5g 5r 1a
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IMGFMT_BGR565, // 5b 6g 5r
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// The first plane has 1 byte per pixel. The second plane is a palette with
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// 256 entries, with each entry encoded like in IMGFMT_BGR32.
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IMGFMT_PAL8,
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// Planar RGB (planes are shuffled: plane 0 is G, etc.)
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IMGFMT_GBRP,
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// XYZ colorspace, similar organization to RGB48. Even though it says "12",
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// the components are stored as 16 bit, with lower 4 bits set to 0.
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IMGFMT_XYZ12,
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// Hardware accelerated formats. Plane data points to special data
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// structures, instead of pixel data.
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IMGFMT_VDPAU, // VdpVideoSurface
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IMGFMT_VDPAU_OUTPUT, // VdpOutputSurface
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IMGFMT_VDA,
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IMGFMT_VAAPI,
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IMGFMT_DXVA2, // IDirect3DSurface9 (NV12)
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IMGFMT_MMAL, // MMAL_BUFFER_HEADER_T
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// Generic pass-through of AV_PIX_FMT_*. Used for formats which don't have
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// a corresponding IMGFMT_ value.
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IMGFMT_AVPIXFMT_START,
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IMGFMT_AVPIXFMT_END = IMGFMT_AVPIXFMT_START + 500,
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IMGFMT_END,
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// Redundant format aliases for native endian access
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// The IMGFMT_RGB32 and IMGFMT_BGR32 formats provide bit-shift access to
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// normally byte-accessed formats:
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// IMGFMT_RGB32 = r | (g << 8) | (b << 16) | (a << 24)
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// IMGFMT_BGR32 = b | (g << 8) | (r << 16) | (a << 24)
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IMGFMT_RGB32 = MP_SELECT_LE_BE(IMGFMT_RGBA, IMGFMT_ABGR),
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IMGFMT_BGR32 = MP_SELECT_LE_BE(IMGFMT_BGRA, IMGFMT_ARGB),
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};
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static inline bool IMGFMT_IS_RGB(int fmt)
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{
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struct mp_imgfmt_desc desc = mp_imgfmt_get_desc(fmt);
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return (desc.flags & MP_IMGFLAG_RGB) && desc.num_planes == 1;
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}
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#define IMGFMT_RGB_DEPTH(fmt) (mp_imgfmt_get_desc(fmt).plane_bits)
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#define IMGFMT_IS_HWACCEL(fmt) (mp_imgfmt_get_desc(fmt).flags & MP_IMGFLAG_HWACCEL)
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int mp_imgfmt_from_name(bstr name, bool allow_hwaccel);
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char *mp_imgfmt_to_name_buf(char *buf, size_t buf_size, int fmt);
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#define mp_imgfmt_to_name(fmt) mp_imgfmt_to_name_buf((char[16]){0}, 16, (fmt))
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char **mp_imgfmt_name_list(void);
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#define vo_format_name mp_imgfmt_to_name
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int mp_imgfmt_find_yuv_planar(int xs, int ys, int planes, int component_bits);
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int mp_imgfmt_select_best(int dst1, int dst2, int src);
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#endif /* MPLAYER_IMG_FORMAT_H */
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