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3b6415b421
This pixel format is a packed 4:4:4 RGB with alpha channel (B-G-R-A), R/G/B channel has 10 bits and alpha channel is the MSB 2 bits.
601 lines
27 KiB
C
601 lines
27 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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_VIDEO_FORMAT_H__
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#define __GST_VIDEO_FORMAT_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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#include <gst/video/video-tile.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_ENCODED: Encoded video format. Only ever use that in caps for
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* special video formats in combination with non-system
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* memory GstCapsFeatures where it does not make sense
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* to specify a real video format.
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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_VYUY: packed 4:2:2 YUV (V0-Y0-U0-Y1 V2-Y2-U2-Y3 V4 ...)
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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 packed into 24 bits without padding (`R-G-B-R-G-B`)
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* @GST_VIDEO_FORMAT_BGR: reverse RGB packed into 24 bits without padding (`B-G-R-B-G-R`)
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* @GST_VIDEO_FORMAT_Y41B: planar 4:1:1 YUV
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* @GST_VIDEO_FORMAT_Y42B: planar 4:2:2 YUV
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* @GST_VIDEO_FORMAT_YVYU: packed 4:2:2 YUV (Y0-V0-Y1-U0 Y2-V2-Y3-U2 Y4 ...)
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* @GST_VIDEO_FORMAT_Y444: planar 4:4:4 YUV
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* @GST_VIDEO_FORMAT_v210: packed 4:2:2 10-bit YUV, complex format
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* @GST_VIDEO_FORMAT_v216: packed 4:2:2 16-bit YUV, Y0-U0-Y1-V1 order
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* @GST_VIDEO_FORMAT_NV12: planar 4:2:0 YUV with interleaved UV plane
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* @GST_VIDEO_FORMAT_NV21: planar 4:2:0 YUV with interleaved VU plane
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* @GST_VIDEO_FORMAT_NV12_10LE32: 10-bit variant of @GST_VIDEO_FORMAT_NV12, packed into 32bit words (MSB 2 bits padding) (Since: 1.14)
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* @GST_VIDEO_FORMAT_GRAY8: 8-bit grayscale
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* @GST_VIDEO_FORMAT_GRAY10_LE32: 10-bit grayscale, packed into 32bit words (2 bits padding) (Since: 1.14)
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* @GST_VIDEO_FORMAT_GRAY16_BE: 16-bit grayscale, most significant byte first
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* @GST_VIDEO_FORMAT_GRAY16_LE: 16-bit grayscale, least significant byte first
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* @GST_VIDEO_FORMAT_v308: packed 4:4:4 YUV (Y-U-V ...)
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* @GST_VIDEO_FORMAT_IYU2: packed 4:4:4 YUV (U-Y-V ...) (Since 1.10)
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* @GST_VIDEO_FORMAT_RGB16: rgb 5-6-5 bits per component
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* @GST_VIDEO_FORMAT_BGR16: reverse rgb 5-6-5 bits per component
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* @GST_VIDEO_FORMAT_RGB15: rgb 5-5-5 bits per component
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* @GST_VIDEO_FORMAT_BGR15: reverse rgb 5-5-5 bits per component
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* @GST_VIDEO_FORMAT_UYVP: packed 10-bit 4:2:2 YUV (U0-Y0-V0-Y1 U2-Y2-V2-Y3 U4 ...)
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* @GST_VIDEO_FORMAT_A420: planar 4:4:2:0 AYUV
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* @GST_VIDEO_FORMAT_RGB8P: 8-bit paletted RGB
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* @GST_VIDEO_FORMAT_YUV9: planar 4:1:0 YUV
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* @GST_VIDEO_FORMAT_YVU9: planar 4:1:0 YUV (like YUV9 but UV planes swapped)
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* @GST_VIDEO_FORMAT_IYU1: packed 4:1:1 YUV (Cb-Y0-Y1-Cr-Y2-Y3 ...)
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* @GST_VIDEO_FORMAT_ARGB64: rgb with alpha channel first, 16 bits per channel
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* @GST_VIDEO_FORMAT_AYUV64: packed 4:4:4 YUV with alpha channel, 16 bits per channel (A0-Y0-U0-V0 ...)
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* @GST_VIDEO_FORMAT_r210: packed 4:4:4 RGB, 10 bits per channel
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* @GST_VIDEO_FORMAT_I420_10BE: planar 4:2:0 YUV, 10 bits per channel
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* @GST_VIDEO_FORMAT_I420_10LE: planar 4:2:0 YUV, 10 bits per channel
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* @GST_VIDEO_FORMAT_I422_10BE: planar 4:2:2 YUV, 10 bits per channel
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* @GST_VIDEO_FORMAT_I422_10LE: planar 4:2:2 YUV, 10 bits per channel
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* @GST_VIDEO_FORMAT_Y444_10BE: planar 4:4:4 YUV, 10 bits per channel (Since: 1.2)
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* @GST_VIDEO_FORMAT_Y444_10LE: planar 4:4:4 YUV, 10 bits per channel (Since: 1.2)
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* @GST_VIDEO_FORMAT_GBR: planar 4:4:4 RGB, 8 bits per channel (Since: 1.2)
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* @GST_VIDEO_FORMAT_GBR_10BE: planar 4:4:4 RGB, 10 bits per channel (Since: 1.2)
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* @GST_VIDEO_FORMAT_GBR_10LE: planar 4:4:4 RGB, 10 bits per channel (Since: 1.2)
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* @GST_VIDEO_FORMAT_NV16: planar 4:2:2 YUV with interleaved UV plane (Since: 1.2)
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* @GST_VIDEO_FORMAT_NV16_10LE32: 10-bit variant of @GST_VIDEO_FORMAT_NV16, packed into 32bit words (MSB 2 bits padding) (Since: 1.14)
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* @GST_VIDEO_FORMAT_NV24: planar 4:4:4 YUV with interleaved UV plane (Since: 1.2)
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* @GST_VIDEO_FORMAT_NV12_64Z32: NV12 with 64x32 tiling in zigzag pattern (Since: 1.4)
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* @GST_VIDEO_FORMAT_A420_10BE: planar 4:4:2:0 YUV, 10 bits per channel (Since: 1.6)
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* @GST_VIDEO_FORMAT_A420_10LE: planar 4:4:2:0 YUV, 10 bits per channel (Since: 1.6)
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* @GST_VIDEO_FORMAT_A422_10BE: planar 4:4:2:2 YUV, 10 bits per channel (Since: 1.6)
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* @GST_VIDEO_FORMAT_A422_10LE: planar 4:4:2:2 YUV, 10 bits per channel (Since: 1.6)
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* @GST_VIDEO_FORMAT_A444_10BE: planar 4:4:4:4 YUV, 10 bits per channel (Since: 1.6)
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* @GST_VIDEO_FORMAT_A444_10LE: planar 4:4:4:4 YUV, 10 bits per channel (Since: 1.6)
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* @GST_VIDEO_FORMAT_NV61: planar 4:2:2 YUV with interleaved VU plane (Since: 1.6)
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* @GST_VIDEO_FORMAT_P010_10BE: planar 4:2:0 YUV with interleaved UV plane, 10 bits per channel (Since: 1.10)
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* @GST_VIDEO_FORMAT_P010_10LE: planar 4:2:0 YUV with interleaved UV plane, 10 bits per channel (Since: 1.10)
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* @GST_VIDEO_FORMAT_GBRA: planar 4:4:4:4 ARGB, 8 bits per channel (Since: 1.12)
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* @GST_VIDEO_FORMAT_GBRA_10BE: planar 4:4:4:4 ARGB, 10 bits per channel (Since: 1.12)
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* @GST_VIDEO_FORMAT_GBRA_10LE: planar 4:4:4:4 ARGB, 10 bits per channel (Since: 1.12)
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* @GST_VIDEO_FORMAT_GBR_12BE: planar 4:4:4 RGB, 12 bits per channel (Since: 1.12)
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* @GST_VIDEO_FORMAT_GBR_12LE: planar 4:4:4 RGB, 12 bits per channel (Since: 1.12)
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* @GST_VIDEO_FORMAT_GBRA_12BE: planar 4:4:4:4 ARGB, 12 bits per channel (Since: 1.12)
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* @GST_VIDEO_FORMAT_GBRA_12LE: planar 4:4:4:4 ARGB, 12 bits per channel (Since: 1.12)
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* @GST_VIDEO_FORMAT_I420_12BE: planar 4:2:0 YUV, 12 bits per channel (Since: 1.12)
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* @GST_VIDEO_FORMAT_I420_12LE: planar 4:2:0 YUV, 12 bits per channel (Since: 1.12)
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* @GST_VIDEO_FORMAT_I422_12BE: planar 4:2:2 YUV, 12 bits per channel (Since: 1.12)
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* @GST_VIDEO_FORMAT_I422_12LE: planar 4:2:2 YUV, 12 bits per channel (Since: 1.12)
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* @GST_VIDEO_FORMAT_Y444_12BE: planar 4:4:4 YUV, 12 bits per channel (Since: 1.12)
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* @GST_VIDEO_FORMAT_Y444_12LE: planar 4:4:4 YUV, 12 bits per channel (Since: 1.12)
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* @GST_VIDEO_FORMAT_NV12_10LE40: Fully packed variant of NV12_10LE32 (Since: 1.16)
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* @GST_VIDEO_FORMAT_Y210: packed 4:2:2 YUV, 10 bits per channel (Since: 1.16)
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* @GST_VIDEO_FORMAT_Y410: packed 4:4:4 YUV, 10 bits per channel(A-V-Y-U...) (Since: 1.16)
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* @GST_VIDEO_FORMAT_VUYA: packed 4:4:4 YUV with alpha channel (V0-U0-Y0-A0...) (Since: 1.16)
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* @GST_VIDEO_FORMAT_BGR10A2_LE: packed 4:4:4 RGB with alpha channel(B-G-R-A), 10 bits for R/G/B channel and MSB 2 bits for alpha channel (Since: 1.16)
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*
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* Enum value describing the most common video formats.
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*
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* See the [GStreamer raw video format design document](https://gstreamer.freedesktop.org/documentation/design/mediatype-video-raw.html#formats)
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* for details about the layout and packing of these formats in memory.
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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_ENCODED,
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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_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_RGB8P,
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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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GST_VIDEO_FORMAT_I420_10BE,
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GST_VIDEO_FORMAT_I420_10LE,
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GST_VIDEO_FORMAT_I422_10BE,
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GST_VIDEO_FORMAT_I422_10LE,
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GST_VIDEO_FORMAT_Y444_10BE,
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GST_VIDEO_FORMAT_Y444_10LE,
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GST_VIDEO_FORMAT_GBR,
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GST_VIDEO_FORMAT_GBR_10BE,
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GST_VIDEO_FORMAT_GBR_10LE,
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GST_VIDEO_FORMAT_NV16,
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GST_VIDEO_FORMAT_NV24,
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GST_VIDEO_FORMAT_NV12_64Z32,
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GST_VIDEO_FORMAT_A420_10BE,
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GST_VIDEO_FORMAT_A420_10LE,
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GST_VIDEO_FORMAT_A422_10BE,
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GST_VIDEO_FORMAT_A422_10LE,
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GST_VIDEO_FORMAT_A444_10BE,
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GST_VIDEO_FORMAT_A444_10LE,
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GST_VIDEO_FORMAT_NV61,
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GST_VIDEO_FORMAT_P010_10BE,
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GST_VIDEO_FORMAT_P010_10LE,
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GST_VIDEO_FORMAT_IYU2,
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GST_VIDEO_FORMAT_VYUY,
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GST_VIDEO_FORMAT_GBRA,
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GST_VIDEO_FORMAT_GBRA_10BE,
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GST_VIDEO_FORMAT_GBRA_10LE,
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GST_VIDEO_FORMAT_GBR_12BE,
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GST_VIDEO_FORMAT_GBR_12LE,
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GST_VIDEO_FORMAT_GBRA_12BE,
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GST_VIDEO_FORMAT_GBRA_12LE,
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GST_VIDEO_FORMAT_I420_12BE,
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GST_VIDEO_FORMAT_I420_12LE,
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GST_VIDEO_FORMAT_I422_12BE,
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GST_VIDEO_FORMAT_I422_12LE,
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GST_VIDEO_FORMAT_Y444_12BE,
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GST_VIDEO_FORMAT_Y444_12LE,
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GST_VIDEO_FORMAT_GRAY10_LE32,
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GST_VIDEO_FORMAT_NV12_10LE32,
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GST_VIDEO_FORMAT_NV16_10LE32,
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GST_VIDEO_FORMAT_NV12_10LE40,
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GST_VIDEO_FORMAT_Y210,
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GST_VIDEO_FORMAT_Y410,
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GST_VIDEO_FORMAT_VUYA,
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GST_VIDEO_FORMAT_BGR10A2_LE,
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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. The palette
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* is stored in the second plane and indexes are stored in the first plane.
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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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* @GST_VIDEO_FORMAT_FLAG_UNPACK: This format can be used in a
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* #GstVideoFormatUnpack and #GstVideoFormatPack function.
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* @GST_VIDEO_FORMAT_FLAG_TILED: The format is tiled, there is tiling information
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* in the last plane.
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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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GST_VIDEO_FORMAT_FLAG_UNPACK = (1 << 7),
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GST_VIDEO_FORMAT_FLAG_TILED = (1 << 8)
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} GstVideoFormatFlags;
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/* YUV components */
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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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/* RGB components */
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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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/* alpha component */
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#define GST_VIDEO_COMP_A 3
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/* palette components */
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#define GST_VIDEO_COMP_INDEX 0
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#define GST_VIDEO_COMP_PALETTE 1
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#include <gst/video/video-chroma.h>
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/**
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* GstVideoPackFlags:
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* @GST_VIDEO_PACK_FLAG_NONE: No flag
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* @GST_VIDEO_PACK_FLAG_TRUNCATE_RANGE: When the source has a smaller depth
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* than the target format, set the least significant bits of the target
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* to 0. This is likely sightly faster but less accurate. When this flag
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* is not specified, the most significant bits of the source are duplicated
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* in the least significant bits of the destination.
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* @GST_VIDEO_PACK_FLAG_INTERLACED: The source is interlaced. The unpacked
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* format will be interlaced as well with each line containing
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* information from alternating fields. (Since 1.2)
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*
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* The different flags that can be used when packing and unpacking.
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*/
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typedef enum
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{
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GST_VIDEO_PACK_FLAG_NONE = 0,
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GST_VIDEO_PACK_FLAG_TRUNCATE_RANGE = (1 << 0),
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GST_VIDEO_PACK_FLAG_INTERLACED = (1 << 1)
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} GstVideoPackFlags;
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/**
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* GstVideoFormatUnpack:
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* @info: a #GstVideoFormatInfo
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* @flags: flags to control the unpacking
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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 with each component
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* interleaved as per @info's unpack_format, which will usually be one of
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* #GST_VIDEO_FORMAT_ARGB, #GST_VIDEO_FORMAT_AYUV, #GST_VIDEO_FORMAT_ARGB64 or
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* #GST_VIDEO_FORMAT_AYUV64 depending on the format to unpack.
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* @dest should at least be big enough to hold @width * bytes_per_pixel bytes
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* where bytes_per_pixel relates to the unpack format and will usually be
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* either 4 or 8 depending on the unpack format. bytes_per_pixel will be
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* the same as the pixel stride for plane 0 for the above formats.
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*
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* For subsampled formats, the components will be duplicated in the destination
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* array. Reconstruction of the missing components can be performed in a
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* separate step after unpacking.
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*/
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typedef void (*GstVideoFormatUnpack) (const GstVideoFormatInfo *info,
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GstVideoPackFlags flags, 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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* @flags: flags to control the packing
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* @src: a source array
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* @sstride: the source array stride
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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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* @chroma_site: the chroma siting of the target when subsampled (not used)
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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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* This function operates on pack_lines lines, meaning that @src should
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* contain at least pack_lines lines with a stride of @sstride and @y
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* should be a multiple of pack_lines.
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*
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* Subsampled formats will use the horizontally and vertically cosited
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* component from the source. Subsampling should be performed before
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* packing.
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*
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* Because this function does not have a x coordinate, it is not possible to
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* pack pixels starting from an unaligned position. For tiled images this
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* means that packing should start from a tile coordinate. For subsampled
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* formats this means that a complete pixel needs to be packed.
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*/
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/* FIXME(2.0): remove the chroma_site, it is unused and is not relevant for
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* packing, chroma subsampling based on chroma-site should be done in a separate
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* step before packing*/
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typedef void (*GstVideoFormatPack) (const GstVideoFormatInfo *info,
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GstVideoPackFlags flags,
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const gpointer src, gint sstride,
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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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GstVideoChromaSite chroma_site,
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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. For 24-bit RGB, this would be 3 bytes, for example,
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* while it would be 4 bytes for RGBx or ARGB.
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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.
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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. This format must have the
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* #GST_VIDEO_FORMAT_FLAG_UNPACK flag set.
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* @unpack_func: an unpack function for this format
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* @pack_lines: the amount of lines that will be packed
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* @pack_func: an pack function for this format
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* @tile_mode: The tiling mode
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* @tile_ws: The width of a tile, in bytes, represented as a shift
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* @tile_hs: The height of a tile, in bytes, represented as a shift
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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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gint pack_lines;
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GstVideoFormatPack pack_func;
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GstVideoTileMode tile_mode;
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guint tile_ws;
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guint tile_hs;
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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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_IS_COMPLEX(info) ((info)->flags & GST_VIDEO_FORMAT_FLAG_COMPLEX)
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#define GST_VIDEO_FORMAT_INFO_IS_TILED(info) ((info)->flags & GST_VIDEO_FORMAT_FLAG_TILED)
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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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/**
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* GST_VIDEO_FORMAT_INFO_PSTRIDE:
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* @info: a #GstVideoFormatInfo
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* @c: the component index
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*
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* pixel stride for the given component. This is the amount of bytes to the
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* pixel immediately to the right, so basically bytes from one pixel to the
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* next. When bits < 8, the stride is expressed in bits.
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*
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* Examples: for 24-bit RGB, the pixel stride would be 3 bytes, while it
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* would be 4 bytes for RGBx or ARGB, and 8 bytes for ARGB64 or AYUV64.
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* For planar formats such as I420 the pixel stride is usually 1. For
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* YUY2 it would be 2 bytes.
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*/
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#define GST_VIDEO_FORMAT_INFO_PSTRIDE(info,c) ((info)->pixel_stride[c])
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/**
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* GST_VIDEO_FORMAT_INFO_N_PLANES:
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* @info: a #GstVideoFormatInfo
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*
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* Number of planes. This is the number of planes the pixel layout is
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* organized in in memory. The number of planes can be less than the
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* number of components (e.g. Y,U,V,A or R, G, B, A) when multiple
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* components are packed into one plane.
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*
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* Examples: RGB/RGBx/RGBA: 1 plane, 3/3/4 components;
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* I420: 3 planes, 3 components; NV21/NV12: 2 planes, 3 components.
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*/
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#define GST_VIDEO_FORMAT_INFO_N_PLANES(info) ((info)->n_planes)
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/**
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* GST_VIDEO_FORMAT_INFO_PLANE:
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* @info: a #GstVideoFormatInfo
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* @c: the component index
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*
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* Plane number where the given component can be found. A plane may
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* contain data for multiple components.
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*/
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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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/* rounds up */
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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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/**
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* GST_VIDEO_FORMAT_INFO_STRIDE:
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* @info: a #GstVideoFormatInfo
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* @strides: an array of strides
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* @comp: the component index
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*
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* Row stride in bytes, that is number of bytes from the first pixel component
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* of a row to the first pixel component in the next row. This might include
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* some row padding (memory not actually used for anything, to make sure the
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* beginning of the next row is aligned in a particular way).
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*/
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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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#define GST_VIDEO_FORMAT_INFO_TILE_MODE(info) ((info)->tile_mode)
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#define GST_VIDEO_FORMAT_INFO_TILE_WS(info) ((info)->tile_ws)
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#define GST_VIDEO_FORMAT_INFO_TILE_HS(info) ((info)->tile_hs)
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/* format properties */
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GST_VIDEO_API
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GstVideoFormat gst_video_format_from_masks (gint depth, gint bpp, gint endianness,
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guint red_mask, guint green_mask,
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guint blue_mask, guint alpha_mask) G_GNUC_CONST;
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GST_VIDEO_API
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GstVideoFormat gst_video_format_from_fourcc (guint32 fourcc) G_GNUC_CONST;
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GST_VIDEO_API
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GstVideoFormat gst_video_format_from_string (const gchar *format) G_GNUC_CONST;
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GST_VIDEO_API
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guint32 gst_video_format_to_fourcc (GstVideoFormat format) G_GNUC_CONST;
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GST_VIDEO_API
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|
const gchar * gst_video_format_to_string (GstVideoFormat format) G_GNUC_CONST;
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GST_VIDEO_API
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const GstVideoFormatInfo *
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gst_video_format_get_info (GstVideoFormat format) G_GNUC_CONST;
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|
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GST_VIDEO_API
|
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gconstpointer gst_video_format_get_palette (GstVideoFormat format, gsize *size);
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#define GST_VIDEO_SIZE_RANGE "(int) [ 1, max ]"
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#define GST_VIDEO_FPS_RANGE "(fraction) [ 0, max ]"
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#if G_BYTE_ORDER == G_LITTLE_ENDIAN
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# define GST_VIDEO_NE(s) G_STRINGIFY(s)"_LE"
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# define GST_VIDEO_OE(s) G_STRINGIFY(s)"_BE"
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#else
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# define GST_VIDEO_NE(s) G_STRINGIFY(s)"_BE"
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# define GST_VIDEO_OE(s) G_STRINGIFY(s)"_LE"
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#endif
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#define GST_VIDEO_FORMATS_ALL "{ I420, YV12, YUY2, UYVY, AYUV, VUYA, RGBx, " \
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"BGRx, xRGB, xBGR, RGBA, BGRA, ARGB, ABGR, RGB, BGR, Y41B, Y42B, YVYU, " \
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|
"Y444, v210, v216, Y210, Y410, NV12, NV21, GRAY8, GRAY16_BE, GRAY16_LE, v308, RGB16, " \
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"BGR16, RGB15, BGR15, UYVP, A420, RGB8P, YUV9, YVU9, IYU1, ARGB64, " \
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"AYUV64, r210, I420_10BE, I420_10LE, I422_10BE, I422_10LE, Y444_10BE, " \
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"Y444_10LE, GBR, GBR_10BE, GBR_10LE, NV16, NV24, NV12_64Z32, A420_10BE, " \
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"A420_10LE, A422_10BE, A422_10LE, A444_10BE, A444_10LE, NV61, P010_10BE, " \
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"P010_10LE, IYU2, VYUY, GBRA, GBRA_10BE, GBRA_10LE, BGR10A2_LE, GBR_12BE, GBR_12LE, " \
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"GBRA_12BE, GBRA_12LE, I420_12BE, I420_12LE, I422_12BE, I422_12LE, " \
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"Y444_12BE, Y444_12LE, GRAY10_LE32, NV12_10LE32, NV16_10LE32, NV12_10LE40 }"
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/**
|
|
* GST_VIDEO_CAPS_MAKE:
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|
* @format: string format that describes the pixel layout, as string
|
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* (e.g. "I420", "RGB", "YV12", "YUY2", "AYUV", etc.)
|
|
*
|
|
* Generic caps string for video, for use in pad templates.
|
|
*/
|
|
#define GST_VIDEO_CAPS_MAKE(format) \
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"video/x-raw, " \
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"format = (string) " format ", " \
|
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"width = " GST_VIDEO_SIZE_RANGE ", " \
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|
"height = " GST_VIDEO_SIZE_RANGE ", " \
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|
"framerate = " GST_VIDEO_FPS_RANGE
|
|
|
|
/**
|
|
* GST_VIDEO_CAPS_MAKE_WITH_FEATURES:
|
|
* @format: string format that describes the pixel layout, as string
|
|
* (e.g. "I420", "RGB", "YV12", "YUY2", "AYUV", etc.)
|
|
* @features: Requires caps features as a string, e.g.
|
|
* "memory:SystemMemory".
|
|
*
|
|
* Generic caps string for video, for use in pad templates.
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
#define GST_VIDEO_CAPS_MAKE_WITH_FEATURES(features,format) \
|
|
"video/x-raw(" features "), " \
|
|
"format = (string) " format ", " \
|
|
"width = " GST_VIDEO_SIZE_RANGE ", " \
|
|
"height = " GST_VIDEO_SIZE_RANGE ", " \
|
|
"framerate = " GST_VIDEO_FPS_RANGE
|
|
|
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G_END_DECLS
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#endif /* __GST_VIDEO_FORMAT_H__ */
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