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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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a18c098f82
Add an unpack option to specify what to do with the least significant bits of the destination when the source format has less bits than the destination. By default we will now copy the most significant bits of the source into the least significant bits of the destination so that the full color range is represented. Add an option to leave the extra destination bits 0, which may be faster and could be compensated for in the element algorithm.
417 lines
18 KiB
C
417 lines
18 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_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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/**
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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
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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
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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_GRAY8: 8-bit grayscale
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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
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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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*
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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_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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} 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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* GstVideoChromaSite:
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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
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* @GST_VIDEO_CHROMA_SITE_ALT_LINE: choma samples are sited on alternate lines
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* @GST_VIDEO_CHROMA_SITE_COSITED: chroma samples cosited with luma samples
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* @GST_VIDEO_CHROMA_SITE_JPEG: jpeg style cositing, also for mpeg1 and mjpeg
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* @GST_VIDEO_CHROMA_SITE_MPEG2: mpeg2 style cositing
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* @GST_VIDEO_CHROMA_SITE_DV: DV style cositing
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*
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* Various Chroma sitings.
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*/
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typedef enum {
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GST_VIDEO_CHROMA_SITE_UNKNOWN = 0,
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GST_VIDEO_CHROMA_SITE_NONE = (1 << 0),
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GST_VIDEO_CHROMA_SITE_H_COSITED = (1 << 1),
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GST_VIDEO_CHROMA_SITE_V_COSITED = (1 << 2),
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GST_VIDEO_CHROMA_SITE_ALT_LINE = (1 << 3),
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/* some common chroma cositing */
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GST_VIDEO_CHROMA_SITE_COSITED = (GST_VIDEO_CHROMA_SITE_H_COSITED | GST_VIDEO_CHROMA_SITE_V_COSITED),
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GST_VIDEO_CHROMA_SITE_JPEG = (GST_VIDEO_CHROMA_SITE_NONE),
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GST_VIDEO_CHROMA_SITE_MPEG2 = (GST_VIDEO_CHROMA_SITE_H_COSITED),
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GST_VIDEO_CHROMA_SITE_DV = (GST_VIDEO_CHROMA_SITE_COSITED | GST_VIDEO_CHROMA_SITE_ALT_LINE),
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} GstVideoChromaSite;
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GstVideoChromaSite gst_video_chroma_from_string (const gchar * s);
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const gchar * gst_video_chroma_to_string (GstVideoChromaSite site);
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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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*
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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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} 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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/**
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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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*
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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
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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 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) (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
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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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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.
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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. 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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*
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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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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_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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/* 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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#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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#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, RGBx, " \
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"BGRx, xRGB, xBGR, RGBA, BGRA, ARGB, ABGR, RGB, BGR, Y41B, Y42B, " \
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"YVYU, Y444, v210, v216, NV12, NV21, GRAY8, GRAY16_BE, GRAY16_LE, " \
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"v308, RGB16, BGR16, RGB15, BGR15, UYVP, A420, RGB8P, YUV9, YVU9, " \
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"IYU1, ARGB64, AYUV64, r210, I420_10LE, I420_10BE }"
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/**
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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.)
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*
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* Generic caps string for video, for use in pad templates.
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*/
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#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
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G_END_DECLS
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#endif /* __GST_VIDEO_FORMAT_H__ */
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