mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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21bf4f04f3
Rename the offset field in GstVideoFormatInfo to poffset to avoid confusion with the offset of the plane in the buffer. The poffset is the offset in the plane where the first byte of the component data can be found. Properly implement the COMP_OFFSET calculations. Fix YV12 and YVU9, simply use the same offsets as the regular I420 and YUV9 variants, we use the plane info to reorder components already. Improve the unit test.
772 lines
33 KiB
C
772 lines
33 KiB
C
/* GStreamer
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* Copyright (C) <2011> Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_VIDEO_H__
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#define __GST_VIDEO_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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#include <gst/video/video-enumtypes.h>
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/**
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* GstVideoFormat:
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* @GST_VIDEO_FORMAT_UNKNOWN: Unknown or unset video format id
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* @GST_VIDEO_FORMAT_I420: planar 4:2:0 YUV
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* @GST_VIDEO_FORMAT_YV12: planar 4:2:0 YVU (like I420 but UV planes swapped)
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* @GST_VIDEO_FORMAT_YUY2: packed 4:2:2 YUV (Y0-U0-Y1-V0 Y2-U2-Y3-V2 Y4 ...)
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* @GST_VIDEO_FORMAT_UYVY: packed 4:2:2 YUV (U0-Y0-V0-Y1 U2-Y2-V2-Y3 U4 ...)
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* @GST_VIDEO_FORMAT_AYUV: packed 4:4:4 YUV with alpha channel (A0-Y0-U0-V0 ...)
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* @GST_VIDEO_FORMAT_RGBx: sparse rgb packed into 32 bit, space last
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* @GST_VIDEO_FORMAT_BGRx: sparse reverse rgb packed into 32 bit, space last
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* @GST_VIDEO_FORMAT_xRGB: sparse rgb packed into 32 bit, space first
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* @GST_VIDEO_FORMAT_xBGR: sparse reverse rgb packed into 32 bit, space first
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* @GST_VIDEO_FORMAT_RGBA: rgb with alpha channel last
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* @GST_VIDEO_FORMAT_BGRA: reverse rgb with alpha channel last
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* @GST_VIDEO_FORMAT_ARGB: rgb with alpha channel first
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* @GST_VIDEO_FORMAT_ABGR: reverse rgb with alpha channel first
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* @GST_VIDEO_FORMAT_RGB: rgb
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* @GST_VIDEO_FORMAT_BGR: reverse rgb
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* @GST_VIDEO_FORMAT_Y41B: planar 4:1:1 YUV (Since: 0.10.18)
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* @GST_VIDEO_FORMAT_Y42B: planar 4:2:2 YUV (Since: 0.10.18)
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* @GST_VIDEO_FORMAT_YVYU: packed 4:2:2 YUV (Y0-V0-Y1-U0 Y2-V2-Y3-U2 Y4 ...) (Since: 0.10.23)
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* @GST_VIDEO_FORMAT_Y444: planar 4:4:4 YUV (Since: 0.10.24)
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* @GST_VIDEO_FORMAT_v210: packed 4:2:2 10-bit YUV, complex format (Since: 0.10.24)
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* @GST_VIDEO_FORMAT_v216: packed 4:2:2 16-bit YUV, Y0-U0-Y1-V1 order (Since: 0.10.24)
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* @GST_VIDEO_FORMAT_NV12: planar 4:2:0 YUV with interleaved UV plane (Since: 0.10.26)
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* @GST_VIDEO_FORMAT_NV21: planar 4:2:0 YUV with interleaved VU plane (Since: 0.10.26)
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* @GST_VIDEO_FORMAT_GRAY8: 8-bit grayscale (Since: 0.10.29)
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* @GST_VIDEO_FORMAT_GRAY16_BE: 16-bit grayscale, most significant byte first (Since: 0.10.29)
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* @GST_VIDEO_FORMAT_GRAY16_LE: 16-bit grayscale, least significant byte first (Since: 0.10.29)
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* @GST_VIDEO_FORMAT_v308: packed 4:4:4 YUV (Since: 0.10.29)
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* @GST_VIDEO_FORMAT_Y800: same as GST_VIDEO_FORMAT_GRAY8 (Since: 0.10.30)
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* @GST_VIDEO_FORMAT_Y16: same as GST_VIDEO_FORMAT_GRAY16_LE (Since: 0.10.30)
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* @GST_VIDEO_FORMAT_RGB16: rgb 5-6-5 bits per component (Since: 0.10.30)
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* @GST_VIDEO_FORMAT_BGR16: reverse rgb 5-6-5 bits per component (Since: 0.10.30)
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* @GST_VIDEO_FORMAT_RGB15: rgb 5-5-5 bits per component (Since: 0.10.30)
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* @GST_VIDEO_FORMAT_BGR15: reverse rgb 5-5-5 bits per component (Since: 0.10.30)
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* @GST_VIDEO_FORMAT_UYVP: packed 10-bit 4:2:2 YUV (U0-Y0-V0-Y1 U2-Y2-V2-Y3 U4 ...) (Since: 0.10.31)
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* @GST_VIDEO_FORMAT_A420: planar 4:4:2:0 AYUV (Since: 0.10.31)
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* @GST_VIDEO_FORMAT_RGB8_PALETTED: 8-bit paletted RGB (Since: 0.10.32)
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* @GST_VIDEO_FORMAT_YUV9: planar 4:1:0 YUV (Since: 0.10.32)
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* @GST_VIDEO_FORMAT_YVU9: planar 4:1:0 YUV (like YUV9 but UV planes swapped) (Since: 0.10.32)
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* @GST_VIDEO_FORMAT_IYU1: packed 4:1:1 YUV (Cb-Y0-Y1-Cr-Y2-Y3 ...) (Since: 0.10.32)
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* @GST_VIDEO_FORMAT_ARGB64: rgb with alpha channel first, 16 bits per channel (Since: 0.10.33)
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* @GST_VIDEO_FORMAT_AYUV64: packed 4:4:4 YUV with alpha channel, 16 bits per channel (A0-Y0-U0-V0 ...) (Since: 0.10.33)
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* @GST_VIDEO_FORMAT_r210: packed 4:4:4 RGB, 10 bits per channel (Since: 0.10.33)
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*
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* Enum value describing the most common video formats.
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*/
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typedef enum {
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GST_VIDEO_FORMAT_UNKNOWN,
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GST_VIDEO_FORMAT_I420,
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GST_VIDEO_FORMAT_YV12,
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GST_VIDEO_FORMAT_YUY2,
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GST_VIDEO_FORMAT_UYVY,
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GST_VIDEO_FORMAT_AYUV,
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GST_VIDEO_FORMAT_RGBx,
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GST_VIDEO_FORMAT_BGRx,
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GST_VIDEO_FORMAT_xRGB,
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GST_VIDEO_FORMAT_xBGR,
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GST_VIDEO_FORMAT_RGBA,
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GST_VIDEO_FORMAT_BGRA,
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GST_VIDEO_FORMAT_ARGB,
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GST_VIDEO_FORMAT_ABGR,
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GST_VIDEO_FORMAT_RGB,
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GST_VIDEO_FORMAT_BGR,
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GST_VIDEO_FORMAT_Y41B,
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GST_VIDEO_FORMAT_Y42B,
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GST_VIDEO_FORMAT_YVYU,
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GST_VIDEO_FORMAT_Y444,
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GST_VIDEO_FORMAT_v210,
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GST_VIDEO_FORMAT_v216,
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GST_VIDEO_FORMAT_NV12,
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GST_VIDEO_FORMAT_NV21,
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GST_VIDEO_FORMAT_GRAY8,
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GST_VIDEO_FORMAT_GRAY16_BE,
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GST_VIDEO_FORMAT_GRAY16_LE,
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GST_VIDEO_FORMAT_v308,
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GST_VIDEO_FORMAT_Y800,
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GST_VIDEO_FORMAT_Y16,
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GST_VIDEO_FORMAT_RGB16,
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GST_VIDEO_FORMAT_BGR16,
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GST_VIDEO_FORMAT_RGB15,
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GST_VIDEO_FORMAT_BGR15,
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GST_VIDEO_FORMAT_UYVP,
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GST_VIDEO_FORMAT_A420,
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GST_VIDEO_FORMAT_RGB8_PALETTED,
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GST_VIDEO_FORMAT_YUV9,
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GST_VIDEO_FORMAT_YVU9,
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GST_VIDEO_FORMAT_IYU1,
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GST_VIDEO_FORMAT_ARGB64,
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GST_VIDEO_FORMAT_AYUV64,
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GST_VIDEO_FORMAT_r210
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} GstVideoFormat;
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#define GST_VIDEO_MAX_PLANES 4
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#define GST_VIDEO_MAX_COMPONENTS 4
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typedef struct _GstVideoFormatInfo GstVideoFormatInfo;
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/**
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* GstVideoFormatFlags:
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* @GST_VIDEO_FORMAT_FLAG_YUV: The video format is YUV, components are numbered
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* 0=Y, 1=U, 2=V.
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* @GST_VIDEO_FORMAT_FLAG_RGB: The video format is RGB, components are numbered
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* 0=R, 1=G, 2=B.
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* @GST_VIDEO_FORMAT_FLAG_GRAY: The video is gray, there is one gray component
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* with index 0.
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* @GST_VIDEO_FORMAT_FLAG_ALPHA: The video format has an alpha components with
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* the number 3.
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* @GST_VIDEO_FORMAT_FLAG_LE: The video format has data stored in little
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* endianness.
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* @GST_VIDEO_FORMAT_FLAG_PALETTE: The video format has a palette.
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* @GST_VIDEO_FORMAT_FLAG_COMPLEX: The video format has a complex layout that
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* can't be described with the usual information in the #GstVideoFormatInfo.
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*
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* The different video flags that a format info can have.
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*/
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typedef enum
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{
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GST_VIDEO_FORMAT_FLAG_YUV = (1 << 0),
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GST_VIDEO_FORMAT_FLAG_RGB = (1 << 1),
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GST_VIDEO_FORMAT_FLAG_GRAY = (1 << 2),
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GST_VIDEO_FORMAT_FLAG_ALPHA = (1 << 3),
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GST_VIDEO_FORMAT_FLAG_LE = (1 << 4),
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GST_VIDEO_FORMAT_FLAG_PALETTE = (1 << 5),
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GST_VIDEO_FORMAT_FLAG_COMPLEX = (1 << 6)
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} GstVideoFormatFlags;
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#define GST_VIDEO_COMP_Y 0
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#define GST_VIDEO_COMP_U 1
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#define GST_VIDEO_COMP_V 2
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#define GST_VIDEO_COMP_R 0
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#define GST_VIDEO_COMP_G 1
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#define GST_VIDEO_COMP_B 2
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#define GST_VIDEO_COMP_A 3
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/**
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* GstVideoFormatUnpack:
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* @info: a #GstVideoFormatInfo
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* @dest: a destination array
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* @data: pointers to the data planes
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* @stride: strides of the planes
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* @x: the x position in the image to start from
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* @y: the y position in the image to start from
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* @width: the amount of pixels to unpack.
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*
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* Unpacks @width pixels from the given planes and strides containing data of
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* format @info. The pixels will be unpacked into @dest which each component
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* interleaved. @dest should at least be big enough to hold @width *
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* n_components * size(unpack_format) bytes.
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*/
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typedef void (*GstVideoFormatUnpack) (GstVideoFormatInfo *info, gpointer dest,
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const gpointer data[GST_VIDEO_MAX_PLANES],
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const gint stride[GST_VIDEO_MAX_PLANES],
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gint x, gint y, gint width);
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/**
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* GstVideoFormatPack:
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* @info: a #GstVideoFormatInfo
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* @src: a source array
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* @data: pointers to the destination data planes
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* @stride: strides of the destination planes
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* @x: the x position in the image to pack to
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* @y: the y position in the image to pack to
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* @width: the amount of pixels to pack.
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*
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* Packs @width pixels from @src to the given planes and strides in the
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* format @info. The pixels from source have each component interleaved
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* and will be packed into the planes in @data.
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*/
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typedef void (*GstVideoFormatPack) (GstVideoFormatInfo *info, const gpointer src,
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gpointer data[GST_VIDEO_MAX_PLANES],
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const gint stride[GST_VIDEO_MAX_PLANES],
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gint x, gint y, gint width);
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/**
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* GstVideoFormatInfo:
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* @format: #GstVideoFormat
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* @name: string representation of the format
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* @description: use readable description of the format
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* @flags: #GstVideoFormatFlags
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* @bits: The number of bits used to pack data items. This can be less than 8
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* when multiple pixels are stored in a byte. for values > 8 multiple bytes
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* should be read according to the endianness flag before applying the shift
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* and mask.
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* @n_components: the number of components in the video format.
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* @shift: the number of bits to shift away to get the component data
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* @depth: the depth in bits for each component
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* @pixel_stride: the pixel stride of each component. This is the amount of
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* bytes to the pixel immediately to the right. When bits < 8, the stride is
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* expressed in bits.
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* @n_planes: the number of planes for this format. The number of planes can be
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* less than the amount of components when multiple components are packed into
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* one plane.
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* @plane: the plane number where a component can be found
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* @poffset: the offset in the plane where the first pixel of the components
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* can be found. If bits < 8 the amount is specified in bits.
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* @w_sub: subsampling factor of the width for the component. Use
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* GST_VIDEO_SUB_SCALE to scale a width.
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* @h_sub: subsampling factor of the height for the component. Use
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* GST_VIDEO_SUB_SCALE to scale a height.
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* @unpack_format: the format of the unpacked pixels.
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* @unpack_func: an unpack function for this format
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* @pack_func: an pack function for this format
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*
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* Information for a video format.
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*/
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struct _GstVideoFormatInfo {
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GstVideoFormat format;
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const gchar *name;
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const gchar *description;
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GstVideoFormatFlags flags;
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guint bits;
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guint n_components;
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guint shift[GST_VIDEO_MAX_COMPONENTS];
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guint depth[GST_VIDEO_MAX_COMPONENTS];
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gint pixel_stride[GST_VIDEO_MAX_COMPONENTS];
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guint n_planes;
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guint plane[GST_VIDEO_MAX_COMPONENTS];
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guint poffset[GST_VIDEO_MAX_COMPONENTS];
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guint w_sub[GST_VIDEO_MAX_COMPONENTS];
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guint h_sub[GST_VIDEO_MAX_COMPONENTS];
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GstVideoFormat unpack_format;
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GstVideoFormatUnpack unpack_func;
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GstVideoFormatPack pack_func;
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};
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#define GST_VIDEO_FORMAT_INFO_FORMAT(info) ((info)->format)
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#define GST_VIDEO_FORMAT_INFO_NAME(info) ((info)->name)
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#define GST_VIDEO_FORMAT_INFO_FLAGS(info) ((info)->flags)
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#define GST_VIDEO_FORMAT_INFO_IS_YUV(info) ((info)->flags & GST_VIDEO_FORMAT_FLAG_YUV)
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#define GST_VIDEO_FORMAT_INFO_IS_RGB(info) ((info)->flags & GST_VIDEO_FORMAT_FLAG_RGB)
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#define GST_VIDEO_FORMAT_INFO_IS_GRAY(info) ((info)->flags & GST_VIDEO_FORMAT_FLAG_GRAY)
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#define GST_VIDEO_FORMAT_INFO_HAS_ALPHA(info) ((info)->flags & GST_VIDEO_FORMAT_FLAG_ALPHA)
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#define GST_VIDEO_FORMAT_INFO_IS_LE(info) ((info)->flags & GST_VIDEO_FORMAT_FLAG_LE)
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#define GST_VIDEO_FORMAT_INFO_HAS_PALETTE(info) ((info)->flags & GST_VIDEO_FORMAT_FLAG_PALETTE)
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#define GST_VIDEO_FORMAT_INFO_BITS(info) ((info)->bits)
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#define GST_VIDEO_FORMAT_INFO_N_COMPONENTS(info) ((info)->n_components)
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#define GST_VIDEO_FORMAT_INFO_SHIFT(info,c) ((info)->shift[c])
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#define GST_VIDEO_FORMAT_INFO_DEPTH(info,c) ((info)->depth[c])
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#define GST_VIDEO_FORMAT_INFO_PSTRIDE(info,c) ((info)->pixel_stride[c])
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#define GST_VIDEO_FORMAT_INFO_N_PLANES(info) ((info)->n_planes)
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#define GST_VIDEO_FORMAT_INFO_PLANE(info,c) ((info)->plane[c])
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#define GST_VIDEO_FORMAT_INFO_POFFSET(info,c) ((info)->poffset[c])
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#define GST_VIDEO_FORMAT_INFO_W_SUB(info,c) ((info)->w_sub[c])
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#define GST_VIDEO_FORMAT_INFO_H_SUB(info,c) ((info)->h_sub[c])
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#define GST_VIDEO_SUB_SCALE(scale,val) (-((-((gint)val))>>(scale)))
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#define GST_VIDEO_FORMAT_INFO_SCALE_WIDTH(info,c,w) GST_VIDEO_SUB_SCALE ((info)->w_sub[(c)],(w))
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#define GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT(info,c,h) GST_VIDEO_SUB_SCALE ((info)->h_sub[(c)],(h))
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#define GST_VIDEO_FORMAT_INFO_DATA(info,planes,comp) \
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(((guint8*)(planes)[info->plane[comp]]) + info->poffset[comp])
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#define GST_VIDEO_FORMAT_INFO_STRIDE(info,strides,comp) ((strides)[info->plane[comp]])
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#define GST_VIDEO_FORMAT_INFO_OFFSET(info,offsets,comp) \
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(((offsets)[info->plane[comp]]) + info->poffset[comp])
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/* format properties */
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GstVideoFormat gst_video_format_from_masks (gint depth, gint bpp, gint endianness,
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gint red_mask, gint green_mask,
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gint blue_mask, gint alpha_mask) G_GNUC_CONST;
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GstVideoFormat gst_video_format_from_fourcc (guint32 fourcc) G_GNUC_CONST;
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GstVideoFormat gst_video_format_from_string (const gchar *format) G_GNUC_CONST;
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guint32 gst_video_format_to_fourcc (GstVideoFormat format) G_GNUC_CONST;
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const gchar * gst_video_format_to_string (GstVideoFormat format) G_GNUC_CONST;
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const GstVideoFormatInfo *
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gst_video_format_get_info (GstVideoFormat format) G_GNUC_CONST;
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typedef struct _GstVideoInfo GstVideoInfo;
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typedef struct _GstVideoFrame GstVideoFrame;
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/**
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* GstVideoInterlaceMode:
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* @GST_VIDEO_INTERLACE_MODE_PROGRESSIVE: all frames are progressive
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* @GST_VIDEO_INTERLACE_MODE_INTERLEAVED: video is interlaced and all fields
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* are interlaced in one frame.
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* @GST_VIDEO_INTERLACE_MODE_MIXED: video contains both interlaced and
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* progressive frames, the buffer flags describe the frame and fields.
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* @GST_VIDEO_INTERLACE_MODE_FIELDS: video is interlaced and fields are stored
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* separately. Use the id property to get access to the required field.
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*
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* The possible values of the #GstVideoInterlaceMode describing the interlace
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* mode of the stream.
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*/
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typedef enum {
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GST_VIDEO_INTERLACE_MODE_PROGRESSIVE = 0,
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GST_VIDEO_INTERLACE_MODE_INTERLEAVED,
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GST_VIDEO_INTERLACE_MODE_MIXED,
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GST_VIDEO_INTERLACE_MODE_FIELDS
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} GstVideoInterlaceMode;
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/**
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* GstVideoFlags:
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* @GST_VIDEO_FLAG_NONE: no flags
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* @GST_VIDEO_FLAG_INTERLACED: The video is interlaced
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* @GST_VIDEO_FLAG_TFF: The video has the top field first
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* @GST_VIDEO_FLAG_RFF: The video has the repeat flag
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* @GST_VIDEO_FLAG_ONEFIELD: one field
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* @GST_VIDEO_FLAG_VARIABLE_FPS: a variable fps is selected, fps_n and fps_d
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* denote the maximum fps of the video
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*
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* Extra video flags
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*/
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typedef enum {
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GST_VIDEO_FLAG_NONE = 0,
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GST_VIDEO_FLAG_INTERLACED = (1 << 0),
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GST_VIDEO_FLAG_TFF = (1 << 1),
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GST_VIDEO_FLAG_RFF = (1 << 2),
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GST_VIDEO_FLAG_ONEFIELD = (1 << 3),
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GST_VIDEO_FLAG_VARIABLE_FPS = (1 << 4)
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} GstVideoFlags;
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/**
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* GstVideoChroma:
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* @GST_VIDEO_CHROMA_SITE_UNKNOWN: unknown cositing
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* @GST_VIDEO_CHROMA_SITE_NONE: no cositing
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* @GST_VIDEO_CHROMA_SITE_H_COSITED: chroma is horizontally cosited
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* @GST_VIDEO_CHROMA_SITE_V_COSITED: chroma is vertically cosited
|
|
* @GST_VIDEO_CHROMA_SITE_ALT_LINE: choma samples are sited on alternate lines
|
|
* @GST_VIDEO_CHROMA_SITE_COSITED: chroma samples cosited with luma samples
|
|
* @GST_VIDEO_CHROMA_SITE_JPEG: jpeg style cositing, also for mpeg1 and mjpeg
|
|
* @GST_VIDEO_CHROMA_SITE_MPEG2: mpeg2 style cositing
|
|
* @GST_VIDEO_CHROMA_SITE_DV: DV style cositing
|
|
*
|
|
* Various Chroma sitings.
|
|
*/
|
|
typedef enum {
|
|
GST_VIDEO_CHROMA_SITE_UNKNOWN = 0,
|
|
GST_VIDEO_CHROMA_SITE_NONE = (1 << 0),
|
|
GST_VIDEO_CHROMA_SITE_H_COSITED = (1 << 1),
|
|
GST_VIDEO_CHROMA_SITE_V_COSITED = (1 << 2),
|
|
GST_VIDEO_CHROMA_SITE_ALT_LINE = (1 << 3),
|
|
/* some common chroma cositing */
|
|
GST_VIDEO_CHROMA_SITE_COSITED = (GST_VIDEO_CHROMA_SITE_H_COSITED | GST_VIDEO_CHROMA_SITE_V_COSITED),
|
|
GST_VIDEO_CHROMA_SITE_JPEG = (GST_VIDEO_CHROMA_SITE_NONE),
|
|
GST_VIDEO_CHROMA_SITE_MPEG2 = (GST_VIDEO_CHROMA_SITE_H_COSITED),
|
|
GST_VIDEO_CHROMA_SITE_DV = (GST_VIDEO_CHROMA_SITE_COSITED | GST_VIDEO_CHROMA_SITE_ALT_LINE),
|
|
} GstVideoChromaSite;
|
|
|
|
/**
|
|
* GstVideoColorRange:
|
|
* @GST_VIDEO_COLOR_RANGE_UNKNOWN: unknown range
|
|
* @GST_VIDEO_COLOR_RANGE_0_255: [0..255] for 8 bit components
|
|
* @GST_VIDEO_COLOR_RANGE_16_235: [16..235] for 8 bit components. Chroma has
|
|
* [16..240] range.
|
|
*
|
|
* Possible color range values. These constants are defined for 8 bit color
|
|
* values and can be scaled for other bit depths.
|
|
*/
|
|
typedef enum {
|
|
GST_VIDEO_COLOR_RANGE_UNKNOWN = 0,
|
|
GST_VIDEO_COLOR_RANGE_0_255,
|
|
GST_VIDEO_COLOR_RANGE_16_235
|
|
} GstVideoColorRange;
|
|
|
|
/**
|
|
* GstVideoColorMatrix:
|
|
* @GST_VIDEO_COLOR_MATRIX_UNKNOWN: unknown matrix
|
|
* @GST_VIDEO_COLOR_MATRIX_RGB: identity matrix
|
|
* @GST_VIDEO_COLOR_MATRIX_FCC: FCC color matrix
|
|
* @GST_VIDEO_COLOR_MATRIX_BT709: ITU-R BT.709 color matrix
|
|
* @GST_VIDEO_COLOR_MATRIX_BT601: ITU-R BT.601 color matrix
|
|
* @GST_VIDEO_COLOR_MATRIX_SMPTE240M: SMPTE 240M color matrix
|
|
*
|
|
* The color matrix is used to convert between Y'PbPr and
|
|
* non-linear RGB (R'G'B')
|
|
*/
|
|
typedef enum {
|
|
GST_VIDEO_COLOR_MATRIX_UNKNOWN = 0,
|
|
GST_VIDEO_COLOR_MATRIX_RGB,
|
|
GST_VIDEO_COLOR_MATRIX_FCC,
|
|
GST_VIDEO_COLOR_MATRIX_BT709,
|
|
GST_VIDEO_COLOR_MATRIX_BT601,
|
|
GST_VIDEO_COLOR_MATRIX_SMPTE240M
|
|
} GstVideoColorMatrix;
|
|
|
|
/**
|
|
* GstVideoTransferFunction:
|
|
* @GST_VIDEO_TRANSFER_UNKNOWN: unknown transfer function
|
|
* @GST_VIDEO_TRANSFER_GAMMA10: linear RGB, gamma 1.0 curve
|
|
* @GST_VIDEO_TRANSFER_GAMMA18: Gamma 1.8 curve
|
|
* @GST_VIDEO_TRANSFER_GAMMA20: Gamma 2.0 curve
|
|
* @GST_VIDEO_TRANSFER_GAMMA22: Gamma 2.2 curve
|
|
* @GST_VIDEO_TRANSFER_BT709: Gamma 2.2 curve with a linear segment in the lower
|
|
* range
|
|
* @GST_VIDEO_TRANSFER_SMPTE240M: Gamma 2.2 curve with a linear segment in the
|
|
* lower range
|
|
* @GST_VIDEO_TRANSFER_SRGB: Gamma 2.4 curve with a linear segment in the lower
|
|
* range
|
|
* @GST_VIDEO_TRANSFER_GAMMA28: Gamma 2.8 curve
|
|
* @GST_VIDEO_TRANSFER_LOG100: Logarithmic transfer characteristic
|
|
* 100:1 range
|
|
* @GST_VIDEO_TRANSFER_LOG316: Logarithmic transfer characteristic
|
|
* 316.22777:1 range
|
|
*
|
|
* The video transfer function defines the formula for converting between
|
|
* non-linear RGB (R'G'B') and linear RGB
|
|
*/
|
|
typedef enum {
|
|
GST_VIDEO_TRANSFER_UNKNOWN = 0,
|
|
GST_VIDEO_TRANSFER_GAMMA10,
|
|
GST_VIDEO_TRANSFER_GAMMA18,
|
|
GST_VIDEO_TRANSFER_GAMMA20,
|
|
GST_VIDEO_TRANSFER_GAMMA22,
|
|
GST_VIDEO_TRANSFER_BT709,
|
|
GST_VIDEO_TRANSFER_SMPTE240M,
|
|
GST_VIDEO_TRANSFER_SRGB,
|
|
GST_VIDEO_TRANSFER_GAMMA28,
|
|
GST_VIDEO_TRANSFER_LOG100,
|
|
GST_VIDEO_TRANSFER_LOG316
|
|
} GstVideoTransferFunction;
|
|
|
|
/**
|
|
* GstVideoColorPrimaries:
|
|
* @GST_VIDEO_COLOR_PRIMARIES_UNKNOWN: unknown color primaries
|
|
* @GST_VIDEO_COLOR_PRIMARIES_BT709: BT709 primaries
|
|
* @GST_VIDEO_COLOR_PRIMARIES_BT470M: BT470M primaries
|
|
* @GST_VIDEO_COLOR_PRIMARIES_BT470BG: BT470BG primaries
|
|
* @GST_VIDEO_COLOR_PRIMARIES_SMPTE170M: SMPTE170M primaries
|
|
* @GST_VIDEO_COLOR_PRIMARIES_SMPTE240M: SMPTE240M primaries
|
|
*
|
|
* The color primaries define the how to transform linear RGB values to and from
|
|
* the CIE XYZ colorspace.
|
|
*/
|
|
typedef enum {
|
|
GST_VIDEO_COLOR_PRIMARIES_UNKNOWN = 0,
|
|
GST_VIDEO_COLOR_PRIMARIES_BT709,
|
|
GST_VIDEO_COLOR_PRIMARIES_BT470M,
|
|
GST_VIDEO_COLOR_PRIMARIES_BT470BG,
|
|
GST_VIDEO_COLOR_PRIMARIES_SMPTE170M,
|
|
GST_VIDEO_COLOR_PRIMARIES_SMPTE240M
|
|
} GstVideoColorPrimaries;
|
|
|
|
/**
|
|
* GstVideoColorimetry:
|
|
* @range: the color range. This is the valid range for the samples.
|
|
* It is used to convert the samples to Y'PbPr values.
|
|
* @matrix: the color matrix. Used to convert between Y'PbPr and
|
|
* non-linear RGB (R'G'B')
|
|
* @transfer: the transfer function. used to convert between R'G'B' and RGB
|
|
* @primaries: color primaries. used to convert between R'G'B' and CIE XYZ
|
|
*
|
|
* Structure describing the color info.
|
|
*/
|
|
typedef struct {
|
|
GstVideoColorRange range;
|
|
GstVideoColorMatrix matrix;
|
|
GstVideoTransferFunction transfer;
|
|
GstVideoColorPrimaries primaries;
|
|
} GstVideoColorimetry;
|
|
|
|
/* predefined colorimetry */
|
|
#define GST_VIDEO_COLORIMETRY_BT601 "bt601"
|
|
#define GST_VIDEO_COLORIMETRY_BT709 "bt709"
|
|
#define GST_VIDEO_COLORIMETRY_SMPTE240M "smpte240m"
|
|
|
|
gboolean gst_video_colorimetry_matches (GstVideoColorimetry *cinfo, const gchar *color);
|
|
gboolean gst_video_colorimetry_from_string (GstVideoColorimetry *cinfo, const gchar *color);
|
|
gchar * gst_video_colorimetry_to_string (GstVideoColorimetry *cinfo);
|
|
|
|
/**
|
|
* GstVideoInfo:
|
|
* @finfo: the format info of the video
|
|
* @interlace_mode: the interlace mode
|
|
* @flags: additional video flags
|
|
* @width: the width of the video
|
|
* @height: the height of the video
|
|
* @views: the number of views for multiview video
|
|
* @size: the default size of one frame
|
|
* @chroma_site: a #GstVideoChromaSite.
|
|
* @colorimetry: the colorimetry info
|
|
* @palette: a buffer with palette data
|
|
* @par_n: the pixel-aspect-ratio numerator
|
|
* @par_d: the pixel-aspect-ratio demnominator
|
|
* @fps_n: the framerate numerator
|
|
* @fps_d: the framerate demnominator
|
|
* @offset: offsets of the planes
|
|
* @stride: strides of the planes
|
|
*
|
|
* Information describing image properties. This information can be filled
|
|
* in from GstCaps with gst_video_info_from_caps(). The information is also used
|
|
* to store the specific video info when mapping a video frame with
|
|
* gst_video_frame_map().
|
|
*
|
|
* Use the provided macros to access the info in this structure.
|
|
*/
|
|
struct _GstVideoInfo {
|
|
const GstVideoFormatInfo *finfo;
|
|
|
|
GstVideoInterlaceMode interlace_mode;
|
|
GstVideoFlags flags;
|
|
gint width;
|
|
gint height;
|
|
gsize size;
|
|
gint views;
|
|
|
|
GstVideoChromaSite chroma_site;
|
|
GstVideoColorimetry colorimetry;
|
|
|
|
GstBuffer *palette;
|
|
|
|
gint par_n;
|
|
gint par_d;
|
|
gint fps_n;
|
|
gint fps_d;
|
|
|
|
gsize offset[GST_VIDEO_MAX_PLANES];
|
|
gint stride[GST_VIDEO_MAX_PLANES];
|
|
};
|
|
|
|
/* general info */
|
|
#define GST_VIDEO_INFO_FORMAT(i) (GST_VIDEO_FORMAT_INFO_FORMAT((i)->finfo))
|
|
#define GST_VIDEO_INFO_NAME(i) (GST_VIDEO_FORMAT_INFO_NAME((i)->finfo))
|
|
#define GST_VIDEO_INFO_IS_YUV(i) (GST_VIDEO_FORMAT_INFO_IS_YUV((i)->finfo))
|
|
#define GST_VIDEO_INFO_IS_RGB(i) (GST_VIDEO_FORMAT_INFO_IS_RGB((i)->finfo))
|
|
#define GST_VIDEO_INFO_IS_GRAY(i) (GST_VIDEO_FORMAT_INFO_IS_GRAY((i)->finfo))
|
|
#define GST_VIDEO_INFO_HAS_ALPHA(i) (GST_VIDEO_FORMAT_INFO_HAS_ALPHA((i)->finfo))
|
|
|
|
#define GST_VIDEO_INFO_INTERLACE_MODE(i) ((i)->interlace_mode)
|
|
#define GST_VIDEO_INFO_FLAGS(i) ((i)->flags)
|
|
#define GST_VIDEO_INFO_WIDTH(i) ((i)->width)
|
|
#define GST_VIDEO_INFO_HEIGHT(i) ((i)->height)
|
|
#define GST_VIDEO_INFO_SIZE(i) ((i)->size)
|
|
#define GST_VIDEO_INFO_VIEWS(i) ((i)->views)
|
|
#define GST_VIDEO_INFO_PAR_N(i) ((i)->par_n)
|
|
#define GST_VIDEO_INFO_PAR_D(i) ((i)->par_d)
|
|
#define GST_VIDEO_INFO_FPS_N(i) ((i)->fps_n)
|
|
#define GST_VIDEO_INFO_FPS_D(i) ((i)->fps_d)
|
|
|
|
/* dealing with GstVideoInfo flags */
|
|
#define GST_VIDEO_INFO_FLAG_IS_SET(i,flag) ((GST_VIDEO_INFO_FLAGS(i) & (flag)) == (flag))
|
|
#define GST_VIDEO_INFO_FLAG_SET(i,flag) (GST_VIDEO_INFO_FLAGS(i) |= (flag))
|
|
#define GST_VIDEO_INFO_FLAG_UNSET(i,flag) (GST_VIDEO_INFO_FLAGS(i) &= ~(flag))
|
|
|
|
/* dealing with planes */
|
|
#define GST_VIDEO_INFO_N_PLANES(i) (GST_VIDEO_FORMAT_INFO_N_PLANES((i)->finfo))
|
|
#define GST_VIDEO_INFO_PLANE_OFFSET(i,p) ((i)->offset[p])
|
|
#define GST_VIDEO_INFO_PLANE_STRIDE(i,p) ((i)->stride[p])
|
|
|
|
/* dealing with components */
|
|
#define GST_VIDEO_INFO_N_COMPONENTS(i) GST_VIDEO_FORMAT_INFO_N_COMPONENTS((i)->finfo)
|
|
#define GST_VIDEO_INFO_COMP_DATA(i,d,c) GST_VIDEO_FORMAT_INFO_DATA((i)->finfo,d,c)
|
|
#define GST_VIDEO_INFO_COMP_OFFSET(i,c) GST_VIDEO_FORMAT_INFO_OFFSET((i)->finfo,(i)->offset,c)
|
|
#define GST_VIDEO_INFO_COMP_STRIDE(i,c) GST_VIDEO_FORMAT_INFO_STRIDE((i)->finfo,(i)->stride,c)
|
|
#define GST_VIDEO_INFO_COMP_WIDTH(i,c) GST_VIDEO_FORMAT_INFO_SCALE_WIDTH((i)->finfo,c,(i)->width)
|
|
#define GST_VIDEO_INFO_COMP_HEIGHT(i,c) GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT((i)->finfo,c,(i)->height)
|
|
#define GST_VIDEO_INFO_COMP_PLANE(i,c) GST_VIDEO_FORMAT_INFO_PLANE((i)->finfo,c)
|
|
#define GST_VIDEO_INFO_COMP_PSTRIDE(i,c) GST_VIDEO_FORMAT_INFO_PSTRIDE((i)->finfo,c)
|
|
#define GST_VIDEO_INFO_COMP_POFFSET(i,c) GST_VIDEO_FORMAT_INFO_POFFSET((i)->finfo,c)
|
|
|
|
void gst_video_info_init (GstVideoInfo *info);
|
|
|
|
void gst_video_info_set_format (GstVideoInfo *info, GstVideoFormat format,
|
|
guint width, guint height);
|
|
|
|
gboolean gst_video_info_from_caps (GstVideoInfo *info, const GstCaps * caps);
|
|
|
|
GstCaps * gst_video_info_to_caps (GstVideoInfo *info);
|
|
|
|
gboolean gst_video_info_convert (GstVideoInfo *info,
|
|
GstFormat src_format,
|
|
gint64 src_value,
|
|
GstFormat dest_format,
|
|
gint64 *dest_value);
|
|
|
|
/**
|
|
* GstVideoFrame:
|
|
* @info: the #GstVideoInfo
|
|
* @buffer: the mapped buffer
|
|
* @meta: pointer to metadata if any
|
|
* @id: id of the mapped frame. the id can for example be used to
|
|
* indentify the frame in case of multiview video.
|
|
* @data: pointers to the plane data
|
|
*
|
|
* A video frame obtained from gst_video_frame_map()
|
|
*/
|
|
struct _GstVideoFrame {
|
|
GstVideoInfo info;
|
|
|
|
GstBuffer *buffer;
|
|
gpointer meta;
|
|
gint id;
|
|
|
|
gpointer data[GST_VIDEO_MAX_PLANES];
|
|
};
|
|
|
|
gboolean gst_video_frame_map (GstVideoFrame *frame, GstVideoInfo *info,
|
|
GstBuffer *buffer, GstMapFlags flags);
|
|
gboolean gst_video_frame_map_id (GstVideoFrame *frame, GstVideoInfo *info,
|
|
GstBuffer *buffer, gint id, GstMapFlags flags);
|
|
void gst_video_frame_unmap (GstVideoFrame *frame);
|
|
|
|
gboolean gst_video_frame_copy (GstVideoFrame *dest, const GstVideoFrame *src);
|
|
|
|
/* general info */
|
|
#define GST_VIDEO_FRAME_FORMAT(f) (GST_VIDEO_INFO_FORMAT(&(f)->info))
|
|
#define GST_VIDEO_FRAME_WIDTH(f) (GST_VIDEO_INFO_WIDTH(&(f)->info))
|
|
#define GST_VIDEO_FRAME_HEIGHT(f) (GST_VIDEO_INFO_HEIGHT(&(f)->info))
|
|
#define GST_VIDEO_FRAME_SIZE(f) (GST_VIDEO_INFO_SIZE(&(f)->info))
|
|
|
|
/* dealing with planes */
|
|
#define GST_VIDEO_FRAME_N_PLANES(f) (GST_VIDEO_INFO_N_PLANES(&(f)->info))
|
|
#define GST_VIDEO_FRAME_PLANE_DATA(f,p) ((f)->data[p])
|
|
#define GST_VIDEO_FRAME_PLANE_OFFSET(f,p) (GST_VIDEO_INFO_PLANE_OFFSET(&(f)->info,p))
|
|
#define GST_VIDEO_FRAME_PLANE_STRIDE(f,p) (GST_VIDEO_INFO_PLANE_STRIDE(&(f)->info,p))
|
|
|
|
/* dealing with components */
|
|
#define GST_VIDEO_FRAME_N_COMPONENTS(f) GST_VIDEO_INFO_N_COMPONENTS(&(f)->info)
|
|
#define GST_VIDEO_FRAME_COMP_DATA(f,c) GST_VIDEO_INFO_COMP_DATA(&(f)->info,(f)->data,c)
|
|
#define GST_VIDEO_FRAME_COMP_STRIDE(f,c) GST_VIDEO_INFO_COMP_STRIDE(&(f)->info,c)
|
|
#define GST_VIDEO_FRAME_COMP_OFFSET(f,c) GST_VIDEO_INFO_COMP_OFFSET(&(f)->info,c)
|
|
#define GST_VIDEO_FRAME_COMP_WIDTH(f,c) GST_VIDEO_INFO_COMP_WIDTH(&(f)->info,c)
|
|
#define GST_VIDEO_FRAME_COMP_HEIGHT(f,c) GST_VIDEO_INFO_COMP_HEIGHT(&(f)->info,c)
|
|
#define GST_VIDEO_FRAME_COMP_PLANE(f,c) GST_VIDEO_INFO_COMP_PLANE(&(f)->info,c)
|
|
#define GST_VIDEO_FRAME_COMP_PSTRIDE(f,c) GST_VIDEO_INFO_COMP_PSTRIDE(&(f)->info,c)
|
|
#define GST_VIDEO_FRAME_COMP_POFFSET(f,c) GST_VIDEO_INFO_COMP_POFFSET(&(f)->info,c)
|
|
|
|
#define GST_VIDEO_SIZE_RANGE "(int) [ 1, max ]"
|
|
#define GST_VIDEO_FPS_RANGE "(fraction) [ 0, max ]"
|
|
|
|
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
|
|
# define GST_VIDEO_NE(s) G_STRINGIFY(s)"_LE"
|
|
# define GST_VIDEO_OE(s) G_STRINGIFY(s)"_BE"
|
|
#else
|
|
# define GST_VIDEO_NE(s) G_STRINGIFY(s)"_BE"
|
|
# define GST_VIDEO_OE(s) G_STRINGIFY(s)"_LE"
|
|
#endif
|
|
|
|
#define GST_VIDEO_FORMATS_ALL "{ I420, YV12, YUY2, UYVY, AYUV, RGBx, " \
|
|
"BGRx, xRGB, xBGR, RGBA, BGRA, ARGB, ABGR, RGB, BGR, Y41B, Y42B, " \
|
|
"YVYU, Y444, v210, v216, NV12, NV21, GRAY8, GRAY16_BE, GRAY16_LE, " \
|
|
"v308, Y800, Y16, RGB16, BGR16, RGB15, BGR15, UYVP, A420, " \
|
|
"RGB8_PALETTED, YUV9, YVU9, IYU1, ARGB64, AYUV64, r210 }"
|
|
|
|
/**
|
|
* GST_VIDEO_CAPS_MAKE:
|
|
* @format: string format that describes the pixel layout, as string
|
|
* (e.g. "I420", "RGB", "YV12", "YUY2", "AYUV", etc.)
|
|
*
|
|
* Generic caps string for video, for use in pad templates.
|
|
*/
|
|
#define GST_VIDEO_CAPS_MAKE(format) \
|
|
"video/x-raw, " \
|
|
"format = (string) " format ", " \
|
|
"width = " GST_VIDEO_SIZE_RANGE ", " \
|
|
"height = " GST_VIDEO_SIZE_RANGE ", " \
|
|
"framerate = " GST_VIDEO_FPS_RANGE
|
|
|
|
/* buffer flags */
|
|
|
|
/**
|
|
* GstVideoBufferFlags:
|
|
* @GST_VIDEO_BUFFER_FLAG_INTERLACED: Mark #GstBuffer as interlaced
|
|
* @GST_VIDEO_BUFFER_FLAG_TFF: If the #GstBuffer is interlaced, then the first field
|
|
* in the video frame is the top field. If unset, the
|
|
* bottom field is first.
|
|
* @GST_VIDEO_BUFFER_FLAG_RFF: If the #GstBuffer is interlaced, then the first field
|
|
* (as defined by the %GST_VIDEO_BUFFER_TFF flag setting)
|
|
* is repeated.
|
|
* @GST_VIDEO_BUFFER_FLAG_ONEFIELD: If the #GstBuffer is interlaced, then only the
|
|
* first field (as defined by the %GST_VIDEO_BUFFER_TFF
|
|
* flag setting) is to be displayed.
|
|
*
|
|
* Additional video buffer flags.
|
|
*/
|
|
typedef enum {
|
|
GST_VIDEO_BUFFER_FLAG_INTERLACED = (GST_BUFFER_FLAG_LAST << 0),
|
|
GST_VIDEO_BUFFER_FLAG_TFF = (GST_BUFFER_FLAG_LAST << 1),
|
|
GST_VIDEO_BUFFER_FLAG_RFF = (GST_BUFFER_FLAG_LAST << 2),
|
|
GST_VIDEO_BUFFER_FLAG_ONEFIELD = (GST_BUFFER_FLAG_LAST << 3),
|
|
|
|
GST_VIDEO_BUFFER_FLAG_LAST = (GST_BUFFER_FLAG_LAST << 8)
|
|
} GstVideoBufferFlags;
|
|
|
|
/* some helper functions */
|
|
gboolean gst_video_calculate_display_ratio (guint * dar_n,
|
|
guint * dar_d,
|
|
guint video_width,
|
|
guint video_height,
|
|
guint video_par_n,
|
|
guint video_par_d,
|
|
guint display_par_n,
|
|
guint display_par_d);
|
|
|
|
GstBuffer * gst_video_parse_caps_palette (GstCaps * caps);
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/* video still frame event creation and parsing */
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GstEvent * gst_video_event_new_still_frame (gboolean in_still);
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gboolean gst_video_event_parse_still_frame (GstEvent * event, gboolean * in_still);
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/* video force key unit event creation and parsing */
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GstEvent * gst_video_event_new_downstream_force_key_unit (GstClockTime timestamp,
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GstClockTime stream_time,
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GstClockTime running_time,
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gboolean all_headers,
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guint count);
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gboolean gst_video_event_parse_downstream_force_key_unit (GstEvent * event,
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GstClockTime * timestamp,
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GstClockTime * stream_time,
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GstClockTime * running_time,
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gboolean * all_headers,
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guint * count);
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GstEvent * gst_video_event_new_upstream_force_key_unit (GstClockTime running_time,
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gboolean all_headers,
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guint count);
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gboolean gst_video_event_parse_upstream_force_key_unit (GstEvent * event,
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GstClockTime * running_time,
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gboolean * all_headers,
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guint * count);
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gboolean gst_video_event_is_force_key_unit(GstEvent *event);
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/* convert/encode video sample from one format to another */
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typedef void (*GstVideoConvertSampleCallback) (GstSample * sample, GError *error, gpointer user_data);
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void gst_video_convert_sample_async (GstSample * sample,
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const GstCaps * to_caps,
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GstClockTime timeout,
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GstVideoConvertSampleCallback callback,
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gpointer user_data,
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GDestroyNotify destroy_notify);
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GstSample * gst_video_convert_sample (GstSample * sample,
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const GstCaps * to_caps,
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GstClockTime timeout,
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GError ** error);
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G_END_DECLS
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#endif /* __GST_VIDEO_H__ */
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