mirror of
https://github.com/mpv-player/mpv
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246 lines
8.4 KiB
C
246 lines
8.4 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
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along 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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#include "video/csputils.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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// 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 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 AV_PIX_FMT_PAL8 for format of the palette).
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#define MP_IMGFLAG_PAL 0x8000
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// planes don't contain real data
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#define MP_IMGFLAG_HWACCEL 0x10000
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// Like MP_IMGFLAG_YUV_P, but RGB. This can be e.g. AV_PIX_FMT_GBRP. The planes
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// are always shuffled (G - B - R [- A]).
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#define MP_IMGFLAG_RGB_P 0x40000
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// Semi-planar YUV formats, like AV_PIX_FMT_NV12.
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#define MP_IMGFLAG_YUV_NV 0x80000
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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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// MP_CSP_AUTO for YUV, MP_CSP_RGB or MP_CSP_XYZ otherwise.
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// (Because IMGFMT/AV_PIX_FMT conflate format and csp for RGB and XYZ.)
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enum mp_csp mp_imgfmt_get_forced_csp(int imgfmt);
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enum mp_component_type {
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MP_COMPONENT_TYPE_UNKNOWN = 0,
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MP_COMPONENT_TYPE_UINT,
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MP_COMPONENT_TYPE_FLOAT,
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};
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enum mp_component_type mp_imgfmt_get_component_type(int imgfmt);
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#define MP_NUM_COMPONENTS 4
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struct mp_regular_imgfmt_plane {
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uint8_t num_components;
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// 1 is luminance/red/gray, 2 is green/Cb, 3 is blue/Cr, 4 is alpha.
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// 0 is used for padding (undefined contents).
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// It is guaranteed that non-0 values occur only once in the whole format.
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uint8_t components[MP_NUM_COMPONENTS];
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};
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// This describes pixel formats that are byte aligned, have byte aligned
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// components, native endian, etc.
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struct mp_regular_imgfmt {
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// Type of each component.
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enum mp_component_type component_type;
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// See mp_imgfmt_get_forced_csp(). Normally code should use
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// mp_image_params.colors. This field is only needed to map the format
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// unambiguously to FFmpeg formats.
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enum mp_csp forced_csp;
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// Size of each component in bytes.
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uint8_t component_size;
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// If >0, LSB padding, if <0, MSB padding. The padding bits are always 0.
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// This applies: bit_depth = component_size * 8 - abs(component_pad)
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// bit_size = component_size * 8 + MPMIN(0, component_pad)
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// E.g. P010: component_pad=6 (LSB always implied 0, all data in MSB)
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// => has a "depth" of 10 bit, but usually treated as 16 bit value
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// yuv420p10: component_pad=-6 (like a 10 bit value 0-extended to 16)
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// => has depth of 10 bit, needs <<6 to get a 16 bit value
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int8_t component_pad;
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uint8_t num_planes;
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struct mp_regular_imgfmt_plane planes[MP_MAX_PLANES];
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// Chroma pixel size (1x1 is 4:4:4)
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uint8_t chroma_w, chroma_h;
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};
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bool mp_get_regular_imgfmt(struct mp_regular_imgfmt *dst, int imgfmt);
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int mp_find_regular_imgfmt(struct mp_regular_imgfmt *src);
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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_420P, // 2x2
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// Gray
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IMGFMT_Y8,
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IMGFMT_Y16,
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// Packed YUV formats (components are byte-accessed)
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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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// Like IMGFMT_NV12, but with 10 bits per component (and 6 bits of padding)
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IMGFMT_P010,
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// Like IMGFMT_NV12, but for 4:4:4
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IMGFMT_NV24,
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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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// 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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// Like IMGFMT_RGBA, but 2 bytes per component.
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IMGFMT_RGBA64,
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// Accessed with bit-shifts after endian-swapping the uint16_t pixel
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IMGFMT_RGB565, // 5r 6g 5b (MSB to LSB)
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// Accessed with bit-shifts, uint32_t units.
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IMGFMT_RGB30, // 2pad 10r 10g 10b (MSG to LSB)
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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_VAAPI,
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// plane 0: ID3D11Texture2D
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// plane 1: slice index casted to pointer
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IMGFMT_D3D11,
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IMGFMT_DXVA2, // IDirect3DSurface9 (NV12/P010/P016)
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IMGFMT_MMAL, // MMAL_BUFFER_HEADER_T
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IMGFMT_VIDEOTOOLBOX, // CVPixelBufferRef
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IMGFMT_MEDIACODEC, // AVMediaCodecBuffer
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IMGFMT_DRMPRIME, // AVDRMFrameDescriptor
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IMGFMT_CUDA, // CUDA Buffer
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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);
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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(int xs, int ys, int planes, int component_bits, int flags);
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int mp_imgfmt_select_best(int dst1, int dst2, int src);
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int mp_imgfmt_select_best_list(int *dst, int num_dst, int src);
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#endif /* MPLAYER_IMG_FORMAT_H */
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