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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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8023733da8
This makes a TRUE return from gst_video_info_from_caps fully consistent with gst_video_info_init.
1564 lines
48 KiB
C
1564 lines
48 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Library <2002> Ronald Bultje <rbultje@ronald.bitfreak.net>
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* Copyright (C) 2007 David A. Schleef <ds@schleef.org>
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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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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <string.h>
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#include "video.h"
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#include "gstvideometa.h"
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static int fill_planes (GstVideoInfo * info);
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typedef struct
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{
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guint32 fourcc;
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GstVideoFormatInfo info;
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} VideoFormat;
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/* depths: bits, n_components, shift, depth */
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#define DPTH0 0, 0, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
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#define DPTH8 8, 1, { 0, 0, 0, 0 }, { 8, 0, 0, 0 }
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#define DPTH888 8, 3, { 0, 0, 0, 0 }, { 8, 8, 8, 0 }
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#define DPTH8888 8, 4, { 0, 0, 0, 0 }, { 8, 8, 8, 8 }
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#define DPTH10_10_10 10, 3, { 0, 0, 0, 0 }, { 10, 10, 10, 0 }
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#define DPTH16 16, 1, { 0, 0, 0, 0 }, { 16, 0, 0, 0 }
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#define DPTH16_16_16 16, 3, { 0, 0, 0, 0 }, { 16, 16, 16, 0 }
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#define DPTH16_16_16_16 16, 4, { 0, 0, 0, 0 }, { 16, 16, 16, 16 }
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#define DPTH555 16, 3, { 10, 5, 0, 0 }, { 5, 5, 5, 0 }
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#define DPTH565 16, 3, { 11, 5, 0, 0 }, { 5, 6, 5, 0 }
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/* pixel strides */
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#define PSTR0 { 0, 0, 0, 0 }
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#define PSTR1 { 1, 0, 0, 0 }
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#define PSTR111 { 1, 1, 1, 0 }
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#define PSTR1111 { 1, 1, 1, 1 }
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#define PSTR122 { 1, 2, 2, 0 }
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#define PSTR2 { 2, 0, 0, 0 }
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#define PSTR222 { 2, 2, 2, 0 }
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#define PSTR244 { 2, 4, 4, 0 }
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#define PSTR444 { 4, 4, 4, 0 }
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#define PSTR4444 { 4, 4, 4, 4 }
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#define PSTR333 { 3, 3, 3, 0 }
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#define PSTR488 { 4, 8, 8, 0 }
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#define PSTR8888 { 8, 8, 8, 8 }
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/* planes */
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#define PLANE_NA 0, { 0, 0, 0, 0 }
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#define PLANE0 1, { 0, 0, 0, 0 }
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#define PLANE011 2, { 0, 1, 1, 0 }
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#define PLANE012 3, { 0, 1, 2, 0 }
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#define PLANE0123 4, { 0, 1, 2, 3 }
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#define PLANE021 3, { 0, 2, 1, 0 }
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/* offsets */
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#define OFFS0 { 0, 0, 0, 0 }
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#define OFFS013 { 0, 1, 3, 0 }
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#define OFFS102 { 1, 0, 2, 0 }
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#define OFFS1230 { 1, 2, 3, 0 }
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#define OFFS012 { 0, 1, 2, 0 }
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#define OFFS210 { 2, 1, 0, 0 }
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#define OFFS123 { 1, 2, 3, 0 }
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#define OFFS321 { 3, 2, 1, 0 }
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#define OFFS0123 { 0, 1, 2, 3 }
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#define OFFS2103 { 2, 1, 0, 3 }
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#define OFFS3210 { 3, 2, 1, 0 }
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#define OFFS031 { 0, 3, 1, 0 }
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#define OFFS026 { 0, 2, 6, 0 }
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#define OFFS001 { 0, 0, 1, 0 }
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#define OFFS010 { 0, 1, 0, 0 }
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#define OFFS104 { 1, 0, 4, 0 }
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#define OFFS2460 { 2, 4, 6, 0 }
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/* subsampling */
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#define SUB410 { 0, 2, 2, 0 }, { 0, 2, 2, 0 }
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#define SUB411 { 0, 2, 2, 0 }, { 0, 0, 0, 0 }
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#define SUB420 { 0, 1, 1, 0 }, { 0, 1, 1, 0 }
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#define SUB422 { 0, 1, 1, 0 }, { 0, 0, 0, 0 }
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#define SUB4 { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
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#define SUB444 { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
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#define SUB4444 { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
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#define SUB4204 { 0, 1, 1, 0 }, { 0, 1, 1, 0 }
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#define MAKE_YUV_FORMAT(name, desc, fourcc, depth, pstride, plane, offs, sub ) \
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{ fourcc, {GST_VIDEO_FORMAT_ ##name, G_STRINGIFY(name), desc, GST_VIDEO_FORMAT_FLAG_YUV, depth, pstride, plane, offs, sub } }
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#define MAKE_YUVA_FORMAT(name, desc, fourcc, depth, pstride, plane, offs, sub) \
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{ fourcc, {GST_VIDEO_FORMAT_ ##name, G_STRINGIFY(name), desc, GST_VIDEO_FORMAT_FLAG_YUV | GST_VIDEO_FORMAT_FLAG_ALPHA, depth, pstride, plane, offs, sub } }
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#define MAKE_RGB_FORMAT(name, desc, depth, pstride, plane, offs, sub) \
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{ 0x00000000, {GST_VIDEO_FORMAT_ ##name, G_STRINGIFY(name), desc, GST_VIDEO_FORMAT_FLAG_RGB, depth, pstride, plane, offs, sub } }
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#define MAKE_RGBA_FORMAT(name, desc, depth, pstride, plane, offs, sub) \
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{ 0x00000000, {GST_VIDEO_FORMAT_ ##name, G_STRINGIFY(name), desc, GST_VIDEO_FORMAT_FLAG_RGB | GST_VIDEO_FORMAT_FLAG_ALPHA, depth, pstride, plane, offs, sub } }
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#define MAKE_GRAY_FORMAT(name, desc, depth, pstride, plane, offs, sub) \
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{ 0x00000000, {GST_VIDEO_FORMAT_ ##name, G_STRINGIFY(name), desc, GST_VIDEO_FORMAT_FLAG_GRAY, depth, pstride, plane, offs, sub } }
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static VideoFormat formats[] = {
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{0x00000000, {GST_VIDEO_FORMAT_UNKNOWN, "UNKNOWN", "unknown video", 0, DPTH0,
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PSTR0, PLANE_NA,
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OFFS0}},
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MAKE_YUV_FORMAT (I420, "raw video", GST_MAKE_FOURCC ('I', '4', '2', '0'),
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DPTH888, PSTR111,
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PLANE012, OFFS0, SUB420),
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MAKE_YUV_FORMAT (YV12, "raw video", GST_MAKE_FOURCC ('Y', 'V', '1', '2'),
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DPTH888, PSTR111,
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PLANE021, OFFS0, SUB420),
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MAKE_YUV_FORMAT (YUY2, "raw video", GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'),
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DPTH888, PSTR244,
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PLANE0, OFFS013, SUB422),
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MAKE_YUV_FORMAT (UYVY, "raw video", GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'),
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DPTH888, PSTR244,
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PLANE0, OFFS102, SUB422),
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MAKE_YUVA_FORMAT (AYUV, "raw video", GST_MAKE_FOURCC ('A', 'Y', 'U', 'V'),
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DPTH8888,
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PSTR4444, PLANE0, OFFS1230, SUB4444),
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MAKE_RGB_FORMAT (RGBx, "raw video", DPTH888, PSTR444, PLANE0, OFFS012,
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SUB444),
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MAKE_RGB_FORMAT (BGRx, "raw video", DPTH888, PSTR444, PLANE0, OFFS210,
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SUB444),
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MAKE_RGB_FORMAT (xRGB, "raw video", DPTH888, PSTR444, PLANE0, OFFS123,
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SUB444),
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MAKE_RGB_FORMAT (xBGR, "raw video", DPTH888, PSTR444, PLANE0, OFFS321,
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SUB444),
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MAKE_RGBA_FORMAT (RGBA, "raw video", DPTH8888, PSTR4444, PLANE0, OFFS0123,
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SUB4444),
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MAKE_RGBA_FORMAT (BGRA, "raw video", DPTH8888, PSTR4444, PLANE0, OFFS2103,
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SUB4444),
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MAKE_RGBA_FORMAT (ARGB, "raw video", DPTH8888, PSTR4444, PLANE0, OFFS1230,
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SUB4444),
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MAKE_RGBA_FORMAT (ABGR, "raw video", DPTH8888, PSTR4444, PLANE0, OFFS3210,
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SUB4444),
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MAKE_RGB_FORMAT (RGB, "raw video", DPTH888, PSTR333, PLANE0, OFFS012, SUB444),
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MAKE_RGB_FORMAT (BGR, "raw video", DPTH888, PSTR333, PLANE0, OFFS210, SUB444),
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MAKE_YUV_FORMAT (Y41B, "raw video", GST_MAKE_FOURCC ('Y', '4', '1', 'B'),
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DPTH888, PSTR111,
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PLANE012, OFFS0, SUB411),
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MAKE_YUV_FORMAT (Y42B, "raw video", GST_MAKE_FOURCC ('Y', '4', '2', 'B'),
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DPTH888, PSTR111,
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PLANE012, OFFS0, SUB422),
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MAKE_YUV_FORMAT (YVYU, "raw video", GST_MAKE_FOURCC ('Y', 'V', 'Y', 'U'),
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DPTH888, PSTR244,
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PLANE0, OFFS031, SUB422),
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MAKE_YUV_FORMAT (Y444, "raw video", GST_MAKE_FOURCC ('Y', '4', '4', '4'),
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DPTH888, PSTR111,
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PLANE012, OFFS0, SUB444),
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MAKE_YUV_FORMAT (v210, "raw video", GST_MAKE_FOURCC ('v', '2', '1', '0'),
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DPTH10_10_10,
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PSTR0, PLANE0, OFFS0, SUB422),
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MAKE_YUV_FORMAT (v216, "raw video", GST_MAKE_FOURCC ('v', '2', '1', '6'),
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DPTH16_16_16,
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PSTR488, PLANE0, OFFS026, SUB422),
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MAKE_YUV_FORMAT (NV12, "raw video", GST_MAKE_FOURCC ('N', 'V', '1', '2'),
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DPTH888, PSTR122,
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PLANE011, OFFS001, SUB420),
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MAKE_YUV_FORMAT (NV21, "raw video", GST_MAKE_FOURCC ('N', 'V', '2', '1'),
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DPTH888, PSTR122,
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PLANE011, OFFS010, SUB420),
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MAKE_GRAY_FORMAT (GRAY8, "raw video", DPTH8, PSTR1, PLANE0, OFFS0, SUB4),
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MAKE_GRAY_FORMAT (GRAY16_BE, "raw video", DPTH16, PSTR2, PLANE0, OFFS0, SUB4),
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MAKE_GRAY_FORMAT (GRAY16_LE, "raw video", DPTH16, PSTR2, PLANE0, OFFS0, SUB4),
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MAKE_YUV_FORMAT (v308, "raw video", GST_MAKE_FOURCC ('v', '3', '0', '8'),
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DPTH888, PSTR333,
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PLANE0, OFFS012, SUB444),
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MAKE_YUV_FORMAT (Y800, "raw video", GST_MAKE_FOURCC ('Y', '8', '0', '0'),
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DPTH8, PSTR1,
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PLANE0, OFFS0, SUB4),
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MAKE_YUV_FORMAT (Y16, "raw video", GST_MAKE_FOURCC ('Y', '1', '6', ' '),
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DPTH16, PSTR2,
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PLANE0, OFFS0, SUB4),
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MAKE_RGB_FORMAT (RGB16, "raw video", DPTH565, PSTR222, PLANE0, OFFS0, SUB444),
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MAKE_RGB_FORMAT (BGR16, "raw video", DPTH565, PSTR222, PLANE0, OFFS0, SUB444),
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MAKE_RGB_FORMAT (RGB15, "raw video", DPTH555, PSTR222, PLANE0, OFFS0, SUB444),
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MAKE_RGB_FORMAT (BGR15, "raw video", DPTH555, PSTR222, PLANE0, OFFS0, SUB444),
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MAKE_YUV_FORMAT (UYVP, "raw video", GST_MAKE_FOURCC ('U', 'Y', 'V', 'P'),
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DPTH10_10_10,
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PSTR0, PLANE0, OFFS0, SUB422),
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MAKE_YUVA_FORMAT (A420, "raw video", GST_MAKE_FOURCC ('A', '4', '2', '0'),
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DPTH8888,
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PSTR1111, PLANE0123, OFFS0, SUB4204),
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MAKE_RGBA_FORMAT (RGB8_PALETTED, "raw video", DPTH8888, PSTR1111, PLANE0,
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OFFS0, SUB4444),
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MAKE_YUV_FORMAT (YUV9, "raw video", GST_MAKE_FOURCC ('Y', 'U', 'V', '9'),
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DPTH888, PSTR111,
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PLANE012, OFFS0, SUB410),
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MAKE_YUV_FORMAT (YVU9, "raw video", GST_MAKE_FOURCC ('Y', 'V', 'U', '9'),
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DPTH888, PSTR111,
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PLANE021, OFFS0, SUB410),
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MAKE_YUV_FORMAT (IYU1, "raw video", GST_MAKE_FOURCC ('I', 'Y', 'U', '1'),
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DPTH888, PSTR0,
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PLANE0, OFFS104, SUB411),
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MAKE_RGBA_FORMAT (ARGB64, "raw video", DPTH16_16_16_16, PSTR8888, PLANE0,
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OFFS2460,
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SUB444),
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MAKE_YUVA_FORMAT (AYUV64, "raw video", 0x00000000, DPTH16_16_16_16, PSTR8888,
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PLANE0,
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OFFS2460, SUB444),
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MAKE_YUV_FORMAT (r210, "raw video", GST_MAKE_FOURCC ('r', '2', '1', '0'),
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DPTH10_10_10,
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PSTR444, PLANE0, OFFS0, SUB444),
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};
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/**
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* SECTION:gstvideo
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* @short_description: Support library for video operations
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*
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* <refsect2>
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* <para>
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* This library contains some helper functions and includes the
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* videosink and videofilter base classes.
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* </para>
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* </refsect2>
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*/
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/**
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* gst_video_calculate_display_ratio:
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* @dar_n: Numerator of the calculated display_ratio
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* @dar_d: Denominator of the calculated display_ratio
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* @video_width: Width of the video frame in pixels
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* @video_height: Height of the video frame in pixels
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* @video_par_n: Numerator of the pixel aspect ratio of the input video.
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* @video_par_d: Denominator of the pixel aspect ratio of the input video.
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* @display_par_n: Numerator of the pixel aspect ratio of the display device
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* @display_par_d: Denominator of the pixel aspect ratio of the display device
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*
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* Given the Pixel Aspect Ratio and size of an input video frame, and the
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* pixel aspect ratio of the intended display device, calculates the actual
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* display ratio the video will be rendered with.
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*
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* Returns: A boolean indicating success and a calculated Display Ratio in the
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* dar_n and dar_d parameters.
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* The return value is FALSE in the case of integer overflow or other error.
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*
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* Since: 0.10.7
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*/
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gboolean
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gst_video_calculate_display_ratio (guint * dar_n, guint * dar_d,
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guint video_width, guint video_height,
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guint video_par_n, guint video_par_d,
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guint display_par_n, guint display_par_d)
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{
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gint num, den;
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gint tmp_n, tmp_d;
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g_return_val_if_fail (dar_n != NULL, FALSE);
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g_return_val_if_fail (dar_d != NULL, FALSE);
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/* Calculate (video_width * video_par_n * display_par_d) /
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* (video_height * video_par_d * display_par_n) */
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if (!gst_util_fraction_multiply (video_width, video_height, video_par_n,
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video_par_d, &tmp_n, &tmp_d))
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goto error_overflow;
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if (!gst_util_fraction_multiply (tmp_n, tmp_d, display_par_d, display_par_n,
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&num, &den))
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goto error_overflow;
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g_return_val_if_fail (num > 0, FALSE);
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g_return_val_if_fail (den > 0, FALSE);
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*dar_n = num;
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*dar_d = den;
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return TRUE;
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/* ERRORS */
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error_overflow:
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{
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GST_WARNING ("overflow in multiply");
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return FALSE;
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}
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}
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static GstVideoFormat
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gst_video_format_from_rgb32_masks (int red_mask, int green_mask, int blue_mask)
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{
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if (red_mask == 0xff000000 && green_mask == 0x00ff0000 &&
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blue_mask == 0x0000ff00) {
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return GST_VIDEO_FORMAT_RGBx;
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}
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if (red_mask == 0x0000ff00 && green_mask == 0x00ff0000 &&
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blue_mask == 0xff000000) {
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return GST_VIDEO_FORMAT_BGRx;
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}
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if (red_mask == 0x00ff0000 && green_mask == 0x0000ff00 &&
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blue_mask == 0x000000ff) {
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return GST_VIDEO_FORMAT_xRGB;
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}
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if (red_mask == 0x000000ff && green_mask == 0x0000ff00 &&
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blue_mask == 0x00ff0000) {
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return GST_VIDEO_FORMAT_xBGR;
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}
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return GST_VIDEO_FORMAT_UNKNOWN;
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}
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static GstVideoFormat
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gst_video_format_from_rgba32_masks (int red_mask, int green_mask,
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int blue_mask, int alpha_mask)
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{
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if (red_mask == 0xff000000 && green_mask == 0x00ff0000 &&
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blue_mask == 0x0000ff00 && alpha_mask == 0x000000ff) {
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return GST_VIDEO_FORMAT_RGBA;
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}
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if (red_mask == 0x0000ff00 && green_mask == 0x00ff0000 &&
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blue_mask == 0xff000000 && alpha_mask == 0x000000ff) {
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return GST_VIDEO_FORMAT_BGRA;
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}
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if (red_mask == 0x00ff0000 && green_mask == 0x0000ff00 &&
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blue_mask == 0x000000ff && alpha_mask == 0xff000000) {
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return GST_VIDEO_FORMAT_ARGB;
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}
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if (red_mask == 0x000000ff && green_mask == 0x0000ff00 &&
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blue_mask == 0x00ff0000 && alpha_mask == 0xff000000) {
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return GST_VIDEO_FORMAT_ABGR;
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}
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return GST_VIDEO_FORMAT_UNKNOWN;
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}
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static GstVideoFormat
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gst_video_format_from_rgb24_masks (int red_mask, int green_mask, int blue_mask)
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{
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if (red_mask == 0xff0000 && green_mask == 0x00ff00 && blue_mask == 0x0000ff) {
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return GST_VIDEO_FORMAT_RGB;
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}
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if (red_mask == 0x0000ff && green_mask == 0x00ff00 && blue_mask == 0xff0000) {
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return GST_VIDEO_FORMAT_BGR;
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}
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return GST_VIDEO_FORMAT_UNKNOWN;
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}
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#define GST_VIDEO_COMP1_MASK_16_INT 0xf800
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#define GST_VIDEO_COMP2_MASK_16_INT 0x07e0
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#define GST_VIDEO_COMP3_MASK_16_INT 0x001f
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#define GST_VIDEO_COMP1_MASK_15_INT 0x7c00
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#define GST_VIDEO_COMP2_MASK_15_INT 0x03e0
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#define GST_VIDEO_COMP3_MASK_15_INT 0x001f
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static GstVideoFormat
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gst_video_format_from_rgb16_masks (int red_mask, int green_mask, int blue_mask)
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{
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if (red_mask == GST_VIDEO_COMP1_MASK_16_INT
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&& green_mask == GST_VIDEO_COMP2_MASK_16_INT
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&& blue_mask == GST_VIDEO_COMP3_MASK_16_INT) {
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return GST_VIDEO_FORMAT_RGB16;
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}
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if (red_mask == GST_VIDEO_COMP3_MASK_16_INT
|
|
&& green_mask == GST_VIDEO_COMP2_MASK_16_INT
|
|
&& blue_mask == GST_VIDEO_COMP1_MASK_16_INT) {
|
|
return GST_VIDEO_FORMAT_BGR16;
|
|
}
|
|
if (red_mask == GST_VIDEO_COMP1_MASK_15_INT
|
|
&& green_mask == GST_VIDEO_COMP2_MASK_15_INT
|
|
&& blue_mask == GST_VIDEO_COMP3_MASK_15_INT) {
|
|
return GST_VIDEO_FORMAT_RGB15;
|
|
}
|
|
if (red_mask == GST_VIDEO_COMP3_MASK_15_INT
|
|
&& green_mask == GST_VIDEO_COMP2_MASK_15_INT
|
|
&& blue_mask == GST_VIDEO_COMP1_MASK_15_INT) {
|
|
return GST_VIDEO_FORMAT_BGR15;
|
|
}
|
|
return GST_VIDEO_FORMAT_UNKNOWN;
|
|
}
|
|
|
|
/**
|
|
* gst_video_format_from_masks:
|
|
* @depth: the amount of bits used for a pixel
|
|
* @bpp: the amount of bits used to store a pixel. This value is bigger than
|
|
* @depth
|
|
* @endianness: the endianness of the masks
|
|
* @red_mask: the red mask
|
|
* @green_mask: the green mask
|
|
* @blue_mask: the blue mask
|
|
* @alpha_mask: the optional alpha mask
|
|
*
|
|
* Find the #GstVideoFormat for the given parameters.
|
|
*
|
|
* Returns: a #GstVideoFormat or GST_VIDEO_FORMAT_UNKNOWN when the parameters to
|
|
* not specify a known format.
|
|
*/
|
|
GstVideoFormat
|
|
gst_video_format_from_masks (gint depth, gint bpp, gint endianness,
|
|
gint red_mask, gint green_mask, gint blue_mask, gint alpha_mask)
|
|
{
|
|
GstVideoFormat format;
|
|
|
|
/* our caps system handles 24/32bpp RGB as big-endian. */
|
|
if ((bpp == 24 || bpp == 32) && endianness == G_LITTLE_ENDIAN) {
|
|
red_mask = GUINT32_TO_BE (red_mask);
|
|
green_mask = GUINT32_TO_BE (green_mask);
|
|
blue_mask = GUINT32_TO_BE (blue_mask);
|
|
endianness = G_BIG_ENDIAN;
|
|
if (bpp == 24) {
|
|
red_mask >>= 8;
|
|
green_mask >>= 8;
|
|
blue_mask >>= 8;
|
|
}
|
|
}
|
|
|
|
if (depth == 30 && bpp == 32) {
|
|
format = GST_VIDEO_FORMAT_r210;
|
|
} else if (depth == 24 && bpp == 32) {
|
|
format = gst_video_format_from_rgb32_masks (red_mask, green_mask,
|
|
blue_mask);
|
|
} else if (depth == 32 && bpp == 32 && alpha_mask) {
|
|
format = gst_video_format_from_rgba32_masks (red_mask, green_mask,
|
|
blue_mask, alpha_mask);
|
|
} else if (depth == 24 && bpp == 24) {
|
|
format = gst_video_format_from_rgb24_masks (red_mask, green_mask,
|
|
blue_mask);
|
|
} else if ((depth == 15 || depth == 16) && bpp == 16 &&
|
|
endianness == G_BYTE_ORDER) {
|
|
format = gst_video_format_from_rgb16_masks (red_mask, green_mask,
|
|
blue_mask);
|
|
} else if (depth == 8 && bpp == 8) {
|
|
format = GST_VIDEO_FORMAT_RGB8_PALETTED;
|
|
} else if (depth == 64 && bpp == 64) {
|
|
format = gst_video_format_from_rgba32_masks (red_mask, green_mask,
|
|
blue_mask, alpha_mask);
|
|
if (format == GST_VIDEO_FORMAT_ARGB) {
|
|
format = GST_VIDEO_FORMAT_ARGB64;
|
|
} else {
|
|
format = GST_VIDEO_FORMAT_UNKNOWN;
|
|
}
|
|
} else {
|
|
format = GST_VIDEO_FORMAT_UNKNOWN;
|
|
}
|
|
return format;
|
|
}
|
|
|
|
/**
|
|
* gst_video_format_from_fourcc:
|
|
* @fourcc: a FOURCC value representing raw YUV video
|
|
*
|
|
* Converts a FOURCC value into the corresponding #GstVideoFormat.
|
|
* If the FOURCC cannot be represented by #GstVideoFormat,
|
|
* #GST_VIDEO_FORMAT_UNKNOWN is returned.
|
|
*
|
|
* Since: 0.10.16
|
|
*
|
|
* Returns: the #GstVideoFormat describing the FOURCC value
|
|
*/
|
|
GstVideoFormat
|
|
gst_video_format_from_fourcc (guint32 fourcc)
|
|
{
|
|
switch (fourcc) {
|
|
case GST_MAKE_FOURCC ('I', '4', '2', '0'):
|
|
return GST_VIDEO_FORMAT_I420;
|
|
case GST_MAKE_FOURCC ('Y', 'V', '1', '2'):
|
|
return GST_VIDEO_FORMAT_YV12;
|
|
case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'):
|
|
return GST_VIDEO_FORMAT_YUY2;
|
|
case GST_MAKE_FOURCC ('Y', 'V', 'Y', 'U'):
|
|
return GST_VIDEO_FORMAT_YVYU;
|
|
case GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'):
|
|
return GST_VIDEO_FORMAT_UYVY;
|
|
case GST_MAKE_FOURCC ('A', 'Y', 'U', 'V'):
|
|
return GST_VIDEO_FORMAT_AYUV;
|
|
case GST_MAKE_FOURCC ('Y', '4', '1', 'B'):
|
|
return GST_VIDEO_FORMAT_Y41B;
|
|
case GST_MAKE_FOURCC ('Y', '4', '2', 'B'):
|
|
return GST_VIDEO_FORMAT_Y42B;
|
|
case GST_MAKE_FOURCC ('Y', '4', '4', '4'):
|
|
return GST_VIDEO_FORMAT_Y444;
|
|
case GST_MAKE_FOURCC ('v', '2', '1', '0'):
|
|
return GST_VIDEO_FORMAT_v210;
|
|
case GST_MAKE_FOURCC ('v', '2', '1', '6'):
|
|
return GST_VIDEO_FORMAT_v216;
|
|
case GST_MAKE_FOURCC ('N', 'V', '1', '2'):
|
|
return GST_VIDEO_FORMAT_NV12;
|
|
case GST_MAKE_FOURCC ('N', 'V', '2', '1'):
|
|
return GST_VIDEO_FORMAT_NV21;
|
|
case GST_MAKE_FOURCC ('v', '3', '0', '8'):
|
|
return GST_VIDEO_FORMAT_v308;
|
|
case GST_MAKE_FOURCC ('Y', '8', '0', '0'):
|
|
case GST_MAKE_FOURCC ('Y', '8', ' ', ' '):
|
|
case GST_MAKE_FOURCC ('G', 'R', 'E', 'Y'):
|
|
return GST_VIDEO_FORMAT_Y800;
|
|
case GST_MAKE_FOURCC ('Y', '1', '6', ' '):
|
|
return GST_VIDEO_FORMAT_Y16;
|
|
case GST_MAKE_FOURCC ('U', 'Y', 'V', 'P'):
|
|
return GST_VIDEO_FORMAT_UYVP;
|
|
case GST_MAKE_FOURCC ('A', '4', '2', '0'):
|
|
return GST_VIDEO_FORMAT_A420;
|
|
case GST_MAKE_FOURCC ('Y', 'U', 'V', '9'):
|
|
return GST_VIDEO_FORMAT_YUV9;
|
|
case GST_MAKE_FOURCC ('Y', 'V', 'U', '9'):
|
|
return GST_VIDEO_FORMAT_YVU9;
|
|
case GST_MAKE_FOURCC ('I', 'Y', 'U', '1'):
|
|
return GST_VIDEO_FORMAT_IYU1;
|
|
case GST_MAKE_FOURCC ('A', 'Y', '6', '4'):
|
|
return GST_VIDEO_FORMAT_AYUV64;
|
|
default:
|
|
return GST_VIDEO_FORMAT_UNKNOWN;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gst_video_format_from_string:
|
|
* @format: a format string
|
|
*
|
|
* Convert the @format string to its #GstVideoFormat.
|
|
*
|
|
* Returns: the #GstVideoFormat for @format or GST_VIDEO_FORMAT_UNKNOWN when the
|
|
* string is not a known format.
|
|
*/
|
|
GstVideoFormat
|
|
gst_video_format_from_string (const gchar * format)
|
|
{
|
|
guint i;
|
|
|
|
g_return_val_if_fail (format != NULL, GST_VIDEO_FORMAT_UNKNOWN);
|
|
|
|
for (i = 0; i < G_N_ELEMENTS (formats); i++) {
|
|
if (strcmp (GST_VIDEO_FORMAT_INFO_NAME (&formats[i].info), format) == 0)
|
|
return GST_VIDEO_FORMAT_INFO_FORMAT (&formats[i].info);
|
|
}
|
|
return GST_VIDEO_FORMAT_UNKNOWN;
|
|
}
|
|
|
|
|
|
/**
|
|
* gst_video_format_to_fourcc:
|
|
* @format: a #GstVideoFormat video format
|
|
*
|
|
* Converts a #GstVideoFormat value into the corresponding FOURCC. Only
|
|
* a few YUV formats have corresponding FOURCC values. If @format has
|
|
* no corresponding FOURCC value, 0 is returned.
|
|
*
|
|
* Since: 0.10.16
|
|
*
|
|
* Returns: the FOURCC corresponding to @format
|
|
*/
|
|
guint32
|
|
gst_video_format_to_fourcc (GstVideoFormat format)
|
|
{
|
|
g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, 0);
|
|
|
|
if (format >= G_N_ELEMENTS (formats))
|
|
return 0;
|
|
|
|
return formats[format].fourcc;
|
|
}
|
|
|
|
const gchar *
|
|
gst_video_format_to_string (GstVideoFormat format)
|
|
{
|
|
g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, NULL);
|
|
|
|
if (format >= G_N_ELEMENTS (formats))
|
|
return NULL;
|
|
|
|
return GST_VIDEO_FORMAT_INFO_NAME (&formats[format].info);
|
|
}
|
|
|
|
/**
|
|
* gst_video_format_get_info:
|
|
* @format: a #GstVideoFormat
|
|
*
|
|
* Get the #GstVideoFormatInfo for @format
|
|
*
|
|
* Returns: The #GstVideoFormatInfo for @format.
|
|
*/
|
|
const GstVideoFormatInfo *
|
|
gst_video_format_get_info (GstVideoFormat format)
|
|
{
|
|
g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, NULL);
|
|
g_return_val_if_fail (format < G_N_ELEMENTS (formats), NULL);
|
|
|
|
return &formats[format].info;
|
|
}
|
|
|
|
/**
|
|
* gst_video_info_init:
|
|
* @info: a #GstVideoInfo
|
|
*
|
|
* Initialize @info with default values.
|
|
*/
|
|
void
|
|
gst_video_info_init (GstVideoInfo * info)
|
|
{
|
|
g_return_if_fail (info != NULL);
|
|
|
|
memset (info, 0, sizeof (GstVideoInfo));
|
|
|
|
info->finfo = &formats[GST_VIDEO_FORMAT_UNKNOWN].info;
|
|
|
|
info->views = 1;
|
|
/* arrange for sensible defaults, e.g. if turned into caps */
|
|
info->fps_n = 0;
|
|
info->fps_d = 1;
|
|
info->par_n = 1;
|
|
info->par_d = 1;
|
|
}
|
|
|
|
/**
|
|
* gst_video_info_set_format:
|
|
* @info: a #GstVideoInfo
|
|
* @format: the format
|
|
* @width: a width
|
|
* @height: a height
|
|
*
|
|
* Set the default info for a video frame of @format and @width and @height.
|
|
*/
|
|
void
|
|
gst_video_info_set_format (GstVideoInfo * info, GstVideoFormat format,
|
|
guint width, guint height)
|
|
{
|
|
const GstVideoFormatInfo *finfo;
|
|
|
|
g_return_if_fail (info != NULL);
|
|
g_return_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN);
|
|
|
|
finfo = &formats[format].info;
|
|
|
|
info->flags = 0;
|
|
info->finfo = finfo;
|
|
info->width = width;
|
|
info->height = height;
|
|
|
|
fill_planes (info);
|
|
}
|
|
|
|
typedef struct
|
|
{
|
|
const gchar *name;
|
|
GstVideoChromaSite site;
|
|
} ChromaSiteInfo;
|
|
|
|
static const ChromaSiteInfo chromasite[] = {
|
|
{"jpeg", GST_VIDEO_CHROMA_SITE_JPEG},
|
|
{"mpeg2", GST_VIDEO_CHROMA_SITE_MPEG2},
|
|
{"dv", GST_VIDEO_CHROMA_SITE_DV}
|
|
};
|
|
|
|
static GstVideoChromaSite
|
|
gst_video_chroma_from_string (const gchar * s)
|
|
{
|
|
gint i;
|
|
for (i = 0; i < G_N_ELEMENTS (chromasite); i++) {
|
|
if (g_str_equal (chromasite[i].name, s))
|
|
return chromasite[i].site;
|
|
}
|
|
return GST_VIDEO_CHROMA_SITE_UNKNOWN;
|
|
}
|
|
|
|
static const gchar *
|
|
gst_video_chroma_to_string (GstVideoChromaSite site)
|
|
{
|
|
gint i;
|
|
for (i = 0; i < G_N_ELEMENTS (chromasite); i++) {
|
|
if (chromasite[i].site == site)
|
|
return chromasite[i].name;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
typedef struct
|
|
{
|
|
const gchar *name;
|
|
GstVideoColorimetry color;
|
|
} ColorimetryInfo;
|
|
|
|
#define MAKE_COLORIMETRY(n,r,m,t,p) { GST_VIDEO_COLORIMETRY_ ##n, \
|
|
{ GST_VIDEO_COLOR_RANGE ##r, GST_VIDEO_COLOR_MATRIX_ ##m, \
|
|
GST_VIDEO_TRANSFER_ ##t, GST_VIDEO_COLOR_PRIMARIES_ ##p } }
|
|
|
|
static const ColorimetryInfo colorimetry[] = {
|
|
MAKE_COLORIMETRY (BT601, _16_235, BT601, BT709, BT470M),
|
|
MAKE_COLORIMETRY (BT709, _16_235, BT709, BT709, BT709),
|
|
MAKE_COLORIMETRY (SMPTE240M, _16_235, SMPTE240M, SMPTE240M, SMPTE240M),
|
|
};
|
|
|
|
static const ColorimetryInfo *
|
|
gst_video_get_colorimetry (const gchar * s)
|
|
{
|
|
gint i;
|
|
|
|
for (i = 0; i < G_N_ELEMENTS (colorimetry); i++) {
|
|
if (g_str_equal (colorimetry[i].name, s))
|
|
return &colorimetry[i];
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
#define IS_EQUAL(ci,i) (((ci)->color.range == (i)->range) && \
|
|
((ci)->color.matrix == (i)->matrix) && \
|
|
((ci)->color.transfer == (i)->transfer) && \
|
|
((ci)->color.primaries == (i)->primaries))
|
|
|
|
|
|
/**
|
|
* gst_video_colorimetry_from_string
|
|
* @cinfo: a #GstVideoColorimetry
|
|
* @color: a colorimetry string
|
|
*
|
|
* Parse the colorimetry string and update @cinfo with the parsed
|
|
* values.
|
|
*
|
|
* Returns: #TRUE if @color points to valid colorimetry info.
|
|
*/
|
|
gboolean
|
|
gst_video_colorimetry_from_string (GstVideoColorimetry * cinfo,
|
|
const gchar * color)
|
|
{
|
|
const ColorimetryInfo *ci;
|
|
|
|
if ((ci = gst_video_get_colorimetry (color))) {
|
|
*cinfo = ci->color;
|
|
} else {
|
|
/* FIXME, split and parse */
|
|
cinfo->range = GST_VIDEO_COLOR_RANGE_16_235;
|
|
cinfo->matrix = GST_VIDEO_COLOR_MATRIX_BT601;
|
|
cinfo->transfer = GST_VIDEO_TRANSFER_BT709;
|
|
cinfo->primaries = GST_VIDEO_COLOR_PRIMARIES_BT709;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_video_caps_set_colorimetry (GstCaps * caps, GstVideoColorimetry * cinfo)
|
|
{
|
|
gint i;
|
|
|
|
for (i = 0; i < G_N_ELEMENTS (colorimetry); i++) {
|
|
if (IS_EQUAL (&colorimetry[i], cinfo)) {
|
|
gst_caps_set_simple (caps, "colorimetry", G_TYPE_STRING,
|
|
colorimetry[i].name, NULL);
|
|
return;
|
|
}
|
|
}
|
|
/* FIXME, construct colorimetry */
|
|
}
|
|
|
|
/**
|
|
* gst_video_colorimetry_matches:
|
|
* @info: a #GstVideoInfo
|
|
* @color: a colorimetry string
|
|
*
|
|
* Check if the colorimetry information in @info matches that of the
|
|
* string @color.
|
|
*
|
|
* Returns: #TRUE if @color conveys the same colorimetry info as the color
|
|
* information in @info.
|
|
*/
|
|
gboolean
|
|
gst_video_colorimetry_matches (GstVideoColorimetry * cinfo, const gchar * color)
|
|
{
|
|
const ColorimetryInfo *ci;
|
|
|
|
if ((ci = gst_video_get_colorimetry (color)))
|
|
return IS_EQUAL (ci, cinfo);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* gst_video_info_from_caps:
|
|
* @info: a #GstVideoInfo
|
|
* @caps: a #GstCaps
|
|
*
|
|
* Parse @caps and update @info.
|
|
*
|
|
* Returns: TRUE if @caps could be parsed
|
|
*/
|
|
gboolean
|
|
gst_video_info_from_caps (GstVideoInfo * info, const GstCaps * caps)
|
|
{
|
|
GstStructure *structure;
|
|
const gchar *s;
|
|
GstVideoFormat format;
|
|
gint width, height, views;
|
|
gint fps_n, fps_d;
|
|
gboolean interlaced;
|
|
gint par_n, par_d;
|
|
|
|
g_return_val_if_fail (info != NULL, FALSE);
|
|
g_return_val_if_fail (caps != NULL, FALSE);
|
|
g_return_val_if_fail (gst_caps_is_fixed (caps), FALSE);
|
|
|
|
GST_DEBUG ("parsing caps %" GST_PTR_FORMAT, caps);
|
|
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
|
|
if (!gst_structure_has_name (structure, "video/x-raw"))
|
|
goto wrong_name;
|
|
|
|
if (!(s = gst_structure_get_string (structure, "format")))
|
|
goto no_format;
|
|
|
|
format = gst_video_format_from_string (s);
|
|
if (format == GST_VIDEO_FORMAT_UNKNOWN)
|
|
goto unknown_format;
|
|
|
|
if (!gst_structure_get_int (structure, "width", &width))
|
|
goto no_width;
|
|
if (!gst_structure_get_int (structure, "height", &height))
|
|
goto no_height;
|
|
|
|
gst_video_info_set_format (info, format, width, height);
|
|
|
|
if (gst_structure_get_fraction (structure, "framerate", &fps_n, &fps_d)) {
|
|
if (fps_n == 0) {
|
|
/* variable framerate */
|
|
info->flags |= GST_VIDEO_FLAG_VARIABLE_FPS;
|
|
/* see if we have a max-framerate */
|
|
gst_structure_get_fraction (structure, "max-framerate", &fps_n, &fps_d);
|
|
}
|
|
info->fps_n = fps_n;
|
|
info->fps_d = fps_d;
|
|
} else {
|
|
/* unspecified is variable framerate */
|
|
info->fps_n = 0;
|
|
info->fps_d = 1;
|
|
}
|
|
|
|
if (!gst_structure_get_boolean (structure, "interlaced", &interlaced))
|
|
interlaced = FALSE;
|
|
if (interlaced)
|
|
info->flags |= GST_VIDEO_FLAG_INTERLACED;
|
|
else
|
|
info->flags &= ~GST_VIDEO_FLAG_INTERLACED;
|
|
|
|
if (gst_structure_get_int (structure, "views", &views))
|
|
info->views = views;
|
|
else
|
|
info->views = 1;
|
|
|
|
if ((s = gst_structure_get_string (structure, "chroma-site")))
|
|
info->chroma_site = gst_video_chroma_from_string (s);
|
|
else
|
|
info->chroma_site = GST_VIDEO_CHROMA_SITE_UNKNOWN;
|
|
|
|
if ((s = gst_structure_get_string (structure, "colorimetry")))
|
|
gst_video_colorimetry_from_string (&info->colorimetry, s);
|
|
else
|
|
memset (&info->colorimetry, 0, sizeof (GstVideoColorimetry));
|
|
|
|
if (gst_structure_get_fraction (structure, "pixel-aspect-ratio",
|
|
&par_n, &par_d)) {
|
|
info->par_n = par_n;
|
|
info->par_d = par_d;
|
|
} else {
|
|
info->par_n = 1;
|
|
info->par_d = 1;
|
|
}
|
|
return TRUE;
|
|
|
|
/* ERROR */
|
|
wrong_name:
|
|
{
|
|
GST_ERROR ("wrong name '%s', expected video/x-raw",
|
|
gst_structure_get_name (structure));
|
|
return FALSE;
|
|
}
|
|
no_format:
|
|
{
|
|
GST_ERROR ("no format given");
|
|
return FALSE;
|
|
}
|
|
unknown_format:
|
|
{
|
|
GST_ERROR ("unknown format '%s' given", s);
|
|
return FALSE;
|
|
}
|
|
no_width:
|
|
{
|
|
GST_ERROR ("no width property given");
|
|
return FALSE;
|
|
}
|
|
no_height:
|
|
{
|
|
GST_ERROR ("no height property given");
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gst_video_info_to_caps:
|
|
* @info: a #GstVideoInfo
|
|
*
|
|
* Convert the values of @info into a #GstCaps.
|
|
*
|
|
* Returns: a new #GstCaps containing the info of @info.
|
|
*/
|
|
GstCaps *
|
|
gst_video_info_to_caps (GstVideoInfo * info)
|
|
{
|
|
GstCaps *caps;
|
|
const gchar *format;
|
|
|
|
g_return_val_if_fail (info != NULL, NULL);
|
|
g_return_val_if_fail (info->finfo != NULL, NULL);
|
|
g_return_val_if_fail (info->finfo->format != GST_VIDEO_FORMAT_UNKNOWN, NULL);
|
|
|
|
format = gst_video_format_to_string (info->finfo->format);
|
|
g_return_val_if_fail (format != NULL, NULL);
|
|
|
|
caps = gst_caps_new_simple ("video/x-raw",
|
|
"format", G_TYPE_STRING, format,
|
|
"width", G_TYPE_INT, info->width,
|
|
"height", G_TYPE_INT, info->height,
|
|
"pixel-aspect-ratio", GST_TYPE_FRACTION, info->par_n, info->par_d, NULL);
|
|
|
|
if (info->flags & GST_VIDEO_FLAG_INTERLACED)
|
|
gst_caps_set_simple (caps, "interlaced", G_TYPE_BOOLEAN, TRUE, NULL);
|
|
|
|
if (info->chroma_site != GST_VIDEO_CHROMA_SITE_UNKNOWN)
|
|
gst_caps_set_simple (caps, "chroma-site", G_TYPE_STRING,
|
|
gst_video_chroma_to_string (info->chroma_site), NULL);
|
|
|
|
gst_video_caps_set_colorimetry (caps, &info->colorimetry);
|
|
|
|
if (info->views > 1)
|
|
gst_caps_set_simple (caps, "views", G_TYPE_INT, info->views, NULL);
|
|
|
|
if (info->flags & GST_VIDEO_FLAG_VARIABLE_FPS && info->fps_n != 0) {
|
|
/* variable fps with a max-framerate */
|
|
gst_caps_set_simple (caps, "framerate", GST_TYPE_FRACTION, 0, 1,
|
|
"max-framerate", GST_TYPE_FRACTION, info->fps_n, info->fps_d, NULL);
|
|
} else {
|
|
/* no variable fps or no max-framerate */
|
|
gst_caps_set_simple (caps, "framerate", GST_TYPE_FRACTION,
|
|
info->fps_n, info->fps_d, NULL);
|
|
}
|
|
|
|
return caps;
|
|
}
|
|
|
|
/**
|
|
* gst_video_frame_map_id:
|
|
* @frame: pointer to #GstVideoFrame
|
|
* @info: a #GstVideoInfo
|
|
* @buffer: the buffer to map
|
|
* @id: the frame id to map
|
|
* @flags: #GstMapFlags
|
|
*
|
|
* Use @info and @buffer to fill in the values of @frame with the video frame
|
|
* information of frame @id.
|
|
*
|
|
* When @id is -1, the default frame is mapped. When @id != -1, this function
|
|
* will return %FALSE when there is no GstVideoMeta with that id.
|
|
*
|
|
* All video planes of @buffer will be mapped and the pointers will be set in
|
|
* @frame->data.
|
|
*
|
|
* Returns: %TRUE on success.
|
|
*/
|
|
gboolean
|
|
gst_video_frame_map_id (GstVideoFrame * frame, GstVideoInfo * info,
|
|
GstBuffer * buffer, gint id, GstMapFlags flags)
|
|
{
|
|
GstVideoMeta *meta;
|
|
guint8 *data;
|
|
gsize size;
|
|
gint i;
|
|
|
|
g_return_val_if_fail (frame != NULL, FALSE);
|
|
g_return_val_if_fail (info != NULL, FALSE);
|
|
g_return_val_if_fail (GST_IS_BUFFER (buffer), FALSE);
|
|
|
|
if (id == -1)
|
|
meta = gst_buffer_get_video_meta (buffer);
|
|
else
|
|
meta = gst_buffer_get_video_meta_id (buffer, id);
|
|
|
|
frame->buffer = buffer;
|
|
frame->meta = meta;
|
|
|
|
if (meta) {
|
|
frame->info.flags = meta->flags;
|
|
frame->info.finfo = &formats[meta->format].info;
|
|
frame->info.width = meta->width;
|
|
frame->info.height = meta->height;
|
|
frame->id = meta->id;
|
|
|
|
for (i = 0; i < info->finfo->n_planes; i++) {
|
|
frame->data[i] =
|
|
gst_video_meta_map (meta, i, &frame->info.stride[i], flags);
|
|
}
|
|
} else {
|
|
/* no metadata, we really need to have the metadata when the id is
|
|
* specified. */
|
|
if (id != -1)
|
|
goto no_metadata;
|
|
|
|
/* copy the info */
|
|
frame->info = *info;
|
|
frame->id = id;
|
|
|
|
data = gst_buffer_map (buffer, &size, NULL, flags);
|
|
|
|
/* do some sanity checks */
|
|
if (size < info->size)
|
|
goto invalid_size;
|
|
|
|
/* set up pointers */
|
|
for (i = 0; i < info->finfo->n_planes; i++) {
|
|
frame->data[i] = data + info->offset[i];
|
|
}
|
|
}
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
no_metadata:
|
|
{
|
|
GST_ERROR ("no GstVideoMeta for id %d", id);
|
|
return FALSE;
|
|
}
|
|
invalid_size:
|
|
{
|
|
GST_ERROR ("invalid buffer size %" G_GSIZE_FORMAT " < %" G_GSIZE_FORMAT,
|
|
size, info->size);
|
|
gst_buffer_unmap (buffer, data, size);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gst_video_frame_map:
|
|
* @frame: pointer to #GstVideoFrame
|
|
* @info: a #GstVideoInfo
|
|
* @buffer: the buffer to map
|
|
* @flags: #GstMapFlags
|
|
*
|
|
* Use @info and @buffer to fill in the values of @frame.
|
|
*
|
|
* All video planes of @buffer will be mapped and the pointers will be set in
|
|
* @frame->data.
|
|
*
|
|
* Returns: %TRUE on success.
|
|
*/
|
|
gboolean
|
|
gst_video_frame_map (GstVideoFrame * frame, GstVideoInfo * info,
|
|
GstBuffer * buffer, GstMapFlags flags)
|
|
{
|
|
return gst_video_frame_map_id (frame, info, buffer, -1, flags);
|
|
}
|
|
|
|
/**
|
|
* gst_video_frame_unmap:
|
|
* @frame: a #GstVideoFrame
|
|
*
|
|
* Unmap the memory previously mapped with gst_video_frame_map.
|
|
*/
|
|
void
|
|
gst_video_frame_unmap (GstVideoFrame * frame)
|
|
{
|
|
GstBuffer *buffer;
|
|
GstVideoMeta *meta;
|
|
gint i;
|
|
|
|
g_return_if_fail (frame != NULL);
|
|
|
|
buffer = frame->buffer;
|
|
meta = frame->meta;
|
|
|
|
if (meta) {
|
|
for (i = 0; i < frame->info.finfo->n_planes; i++) {
|
|
gst_video_meta_unmap (meta, i, frame->data[i]);
|
|
}
|
|
} else {
|
|
guint8 *data;
|
|
|
|
data = frame->data[0];
|
|
data -= frame->info.offset[0];
|
|
gst_buffer_unmap (buffer, data, -1);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gst_video_frame_copy:
|
|
* @dest: a #GstVideoFrame
|
|
* @src: a #GstVideoFrame
|
|
*
|
|
* Copy the contents from @src to @dest.
|
|
*
|
|
* Returns: TRUE if the contents could be copied.
|
|
*/
|
|
gboolean
|
|
gst_video_frame_copy (GstVideoFrame * dest, const GstVideoFrame * src)
|
|
{
|
|
guint i, n_planes;
|
|
const GstVideoInfo *sinfo;
|
|
GstVideoInfo *dinfo;
|
|
|
|
sinfo = &src->info;
|
|
dinfo = &dest->info;
|
|
|
|
g_return_val_if_fail (dinfo->finfo->format == sinfo->finfo->format, FALSE);
|
|
g_return_val_if_fail (dinfo->width == sinfo->width
|
|
&& dinfo->height == sinfo->height, FALSE);
|
|
|
|
n_planes = dinfo->finfo->n_planes;
|
|
|
|
for (i = 0; i < n_planes; i++) {
|
|
guint w, h, j;
|
|
guint8 *sp, *dp;
|
|
gint ss, ds;
|
|
|
|
sp = src->data[i];
|
|
dp = dest->data[i];
|
|
|
|
ss = sinfo->stride[i];
|
|
ds = dinfo->stride[i];
|
|
|
|
w = MIN (ABS (ss), ABS (ds));
|
|
h = GST_VIDEO_FRAME_COMP_HEIGHT (dest, i);
|
|
|
|
GST_DEBUG ("w %d h %d", w, h);
|
|
|
|
for (j = 0; j < h; j++) {
|
|
memcpy (dp, sp, w);
|
|
dp += ds;
|
|
sp += ss;
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static int
|
|
fill_planes (GstVideoInfo * info)
|
|
{
|
|
gint width, height;
|
|
|
|
width = info->width;
|
|
height = info->height;
|
|
|
|
switch (info->finfo->format) {
|
|
case GST_VIDEO_FORMAT_YUY2:
|
|
case GST_VIDEO_FORMAT_YVYU:
|
|
case GST_VIDEO_FORMAT_UYVY:
|
|
info->stride[0] = GST_ROUND_UP_4 (width * 2);
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_AYUV:
|
|
case GST_VIDEO_FORMAT_RGBx:
|
|
case GST_VIDEO_FORMAT_RGBA:
|
|
case GST_VIDEO_FORMAT_BGRx:
|
|
case GST_VIDEO_FORMAT_BGRA:
|
|
case GST_VIDEO_FORMAT_xRGB:
|
|
case GST_VIDEO_FORMAT_ARGB:
|
|
case GST_VIDEO_FORMAT_xBGR:
|
|
case GST_VIDEO_FORMAT_ABGR:
|
|
case GST_VIDEO_FORMAT_r210:
|
|
info->stride[0] = width * 4;
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_RGB16:
|
|
case GST_VIDEO_FORMAT_BGR16:
|
|
case GST_VIDEO_FORMAT_RGB15:
|
|
case GST_VIDEO_FORMAT_BGR15:
|
|
info->stride[0] = GST_ROUND_UP_4 (width * 2);
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_RGB:
|
|
case GST_VIDEO_FORMAT_BGR:
|
|
case GST_VIDEO_FORMAT_v308:
|
|
info->stride[0] = GST_ROUND_UP_4 (width * 3);
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_v210:
|
|
info->stride[0] = ((width + 47) / 48) * 128;
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_v216:
|
|
info->stride[0] = GST_ROUND_UP_8 (width * 4);
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_GRAY8:
|
|
case GST_VIDEO_FORMAT_Y800:
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_GRAY16_BE:
|
|
case GST_VIDEO_FORMAT_GRAY16_LE:
|
|
case GST_VIDEO_FORMAT_Y16:
|
|
info->stride[0] = GST_ROUND_UP_4 (width * 2);
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_UYVP:
|
|
info->stride[0] = GST_ROUND_UP_4 ((width * 2 * 5 + 3) / 4);
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_RGB8_PALETTED:
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_IYU1:
|
|
info->stride[0] = GST_ROUND_UP_4 (GST_ROUND_UP_4 (width) +
|
|
GST_ROUND_UP_4 (width) / 2);
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_ARGB64:
|
|
case GST_VIDEO_FORMAT_AYUV64:
|
|
info->stride[0] = width * 8;
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_I420:
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->stride[1] = GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2);
|
|
info->stride[2] = info->stride[1];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
|
|
info->offset[2] = info->offset[1] +
|
|
info->stride[1] * (GST_ROUND_UP_2 (height) / 2);
|
|
info->size = info->offset[2] +
|
|
info->stride[2] * (GST_ROUND_UP_2 (height) / 2);
|
|
break;
|
|
case GST_VIDEO_FORMAT_YV12: /* same as I420, but plane 1+2 swapped */
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->stride[1] = GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2);
|
|
info->stride[2] = info->stride[1];
|
|
info->offset[0] = 0;
|
|
info->offset[2] = info->stride[0] * GST_ROUND_UP_2 (height);
|
|
info->offset[1] = info->offset[2] +
|
|
info->stride[1] * (GST_ROUND_UP_2 (height) / 2);
|
|
info->size = info->offset[1] +
|
|
info->stride[2] * (GST_ROUND_UP_2 (height) / 2);
|
|
break;
|
|
case GST_VIDEO_FORMAT_Y41B:
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->stride[1] = GST_ROUND_UP_16 (width) / 4;
|
|
info->stride[2] = info->stride[1];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * height;
|
|
info->offset[2] = info->offset[1] + info->stride[1] * height;
|
|
/* simplification of ROUNDUP4(w)*h + 2*((ROUNDUP16(w)/4)*h */
|
|
info->size = (info->stride[0] + (GST_ROUND_UP_16 (width) / 2)) * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_Y42B:
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->stride[1] = GST_ROUND_UP_8 (width) / 2;
|
|
info->stride[2] = info->stride[1];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * height;
|
|
info->offset[2] = info->offset[1] + info->stride[1] * height;
|
|
/* simplification of ROUNDUP4(w)*h + 2*(ROUNDUP8(w)/2)*h */
|
|
info->size = (info->stride[0] + GST_ROUND_UP_8 (width)) * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_Y444:
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->stride[1] = info->stride[0];
|
|
info->stride[2] = info->stride[0];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * height;
|
|
info->offset[2] = info->offset[1] * 2;
|
|
info->size = info->stride[0] * height * 3;
|
|
break;
|
|
case GST_VIDEO_FORMAT_NV12:
|
|
case GST_VIDEO_FORMAT_NV21:
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->stride[1] = info->stride[0];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
|
|
info->size = info->stride[0] * GST_ROUND_UP_2 (height) * 3 / 2;
|
|
break;
|
|
case GST_VIDEO_FORMAT_A420:
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->stride[1] = GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2);
|
|
info->stride[2] = info->stride[1];
|
|
info->stride[3] = info->stride[0];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
|
|
info->offset[2] = info->offset[1] +
|
|
info->stride[1] * (GST_ROUND_UP_2 (height) / 2);
|
|
info->offset[3] = info->offset[2] +
|
|
info->stride[2] * (GST_ROUND_UP_2 (height) / 2);
|
|
info->size = info->offset[3] + info->stride[0];
|
|
break;
|
|
case GST_VIDEO_FORMAT_YUV9:
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->stride[1] = GST_ROUND_UP_4 (GST_ROUND_UP_4 (width) / 4);
|
|
info->stride[2] = info->stride[1];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * height;
|
|
info->offset[2] = info->offset[1] +
|
|
info->stride[1] * (GST_ROUND_UP_4 (height) / 4);
|
|
info->size = info->offset[2] +
|
|
info->stride[2] * (GST_ROUND_UP_4 (height) / 4);
|
|
break;
|
|
case GST_VIDEO_FORMAT_YVU9:
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->stride[1] = GST_ROUND_UP_4 (GST_ROUND_UP_4 (width) / 4);
|
|
info->stride[2] = info->stride[1];
|
|
info->offset[0] = 0;
|
|
info->offset[2] = info->stride[0] * height;
|
|
info->offset[1] = info->offset[2] +
|
|
info->stride[1] * (GST_ROUND_UP_4 (height) / 4);
|
|
info->size = info->offset[2] +
|
|
info->stride[2] * (GST_ROUND_UP_4 (height) / 4);
|
|
break;
|
|
case GST_VIDEO_FORMAT_UNKNOWN:
|
|
GST_ERROR ("invalid format");
|
|
g_warning ("invalid format");
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* gst_video_format_convert:
|
|
* @info: a #GstVideoInfo
|
|
* @src_format: #GstFormat of the @src_value
|
|
* @src_value: value to convert
|
|
* @dest_format: #GstFormat of the @dest_value
|
|
* @dest_value: pointer to destination value
|
|
*
|
|
* Converts among various #GstFormat types. This function handles
|
|
* GST_FORMAT_BYTES, GST_FORMAT_TIME, and GST_FORMAT_DEFAULT. For
|
|
* raw video, GST_FORMAT_DEFAULT corresponds to video frames. This
|
|
* function can be used to handle pad queries of the type GST_QUERY_CONVERT.
|
|
*
|
|
* Since: 0.10.16
|
|
*
|
|
* Returns: TRUE if the conversion was successful.
|
|
*/
|
|
gboolean
|
|
gst_video_info_convert (GstVideoInfo * info,
|
|
GstFormat src_format, gint64 src_value,
|
|
GstFormat dest_format, gint64 * dest_value)
|
|
{
|
|
gboolean ret = FALSE;
|
|
int size, fps_n, fps_d;
|
|
|
|
g_return_val_if_fail (info != NULL, 0);
|
|
g_return_val_if_fail (info->finfo != NULL, 0);
|
|
g_return_val_if_fail (info->finfo->format != GST_VIDEO_FORMAT_UNKNOWN, 0);
|
|
g_return_val_if_fail (info->size > 0, 0);
|
|
|
|
size = info->size;
|
|
fps_n = info->fps_n;
|
|
fps_d = info->fps_d;
|
|
|
|
GST_DEBUG ("converting value %" G_GINT64_FORMAT " from %s to %s",
|
|
src_value, gst_format_get_name (src_format),
|
|
gst_format_get_name (dest_format));
|
|
|
|
if (src_format == dest_format) {
|
|
*dest_value = src_value;
|
|
ret = TRUE;
|
|
goto done;
|
|
}
|
|
|
|
if (src_value == -1) {
|
|
*dest_value = -1;
|
|
ret = TRUE;
|
|
goto done;
|
|
}
|
|
|
|
/* bytes to frames */
|
|
if (src_format == GST_FORMAT_BYTES && dest_format == GST_FORMAT_DEFAULT) {
|
|
if (size != 0) {
|
|
*dest_value = gst_util_uint64_scale_int (src_value, 1, size);
|
|
} else {
|
|
GST_ERROR ("blocksize is 0");
|
|
*dest_value = 0;
|
|
}
|
|
ret = TRUE;
|
|
goto done;
|
|
}
|
|
|
|
/* frames to bytes */
|
|
if (src_format == GST_FORMAT_DEFAULT && dest_format == GST_FORMAT_BYTES) {
|
|
*dest_value = gst_util_uint64_scale_int (src_value, size, 1);
|
|
ret = TRUE;
|
|
goto done;
|
|
}
|
|
|
|
/* time to frames */
|
|
if (src_format == GST_FORMAT_TIME && dest_format == GST_FORMAT_DEFAULT) {
|
|
if (fps_d != 0) {
|
|
*dest_value = gst_util_uint64_scale (src_value,
|
|
fps_n, GST_SECOND * fps_d);
|
|
} else {
|
|
GST_ERROR ("framerate denominator is 0");
|
|
*dest_value = 0;
|
|
}
|
|
ret = TRUE;
|
|
goto done;
|
|
}
|
|
|
|
/* frames to time */
|
|
if (src_format == GST_FORMAT_DEFAULT && dest_format == GST_FORMAT_TIME) {
|
|
if (fps_n != 0) {
|
|
*dest_value = gst_util_uint64_scale (src_value,
|
|
GST_SECOND * fps_d, fps_n);
|
|
} else {
|
|
GST_ERROR ("framerate numerator is 0");
|
|
*dest_value = 0;
|
|
}
|
|
ret = TRUE;
|
|
goto done;
|
|
}
|
|
|
|
/* time to bytes */
|
|
if (src_format == GST_FORMAT_TIME && dest_format == GST_FORMAT_BYTES) {
|
|
if (fps_d != 0) {
|
|
*dest_value = gst_util_uint64_scale (src_value,
|
|
fps_n * size, GST_SECOND * fps_d);
|
|
} else {
|
|
GST_ERROR ("framerate denominator is 0");
|
|
*dest_value = 0;
|
|
}
|
|
ret = TRUE;
|
|
goto done;
|
|
}
|
|
|
|
/* bytes to time */
|
|
if (src_format == GST_FORMAT_BYTES && dest_format == GST_FORMAT_TIME) {
|
|
if (fps_n != 0 && size != 0) {
|
|
*dest_value = gst_util_uint64_scale (src_value,
|
|
GST_SECOND * fps_d, fps_n * size);
|
|
} else {
|
|
GST_ERROR ("framerate denominator and/or blocksize is 0");
|
|
*dest_value = 0;
|
|
}
|
|
ret = TRUE;
|
|
}
|
|
|
|
done:
|
|
|
|
GST_DEBUG ("ret=%d result %" G_GINT64_FORMAT, ret, *dest_value);
|
|
|
|
return ret;
|
|
}
|
|
|
|
#define GST_VIDEO_EVENT_STILL_STATE_NAME "GstEventStillFrame"
|
|
|
|
/**
|
|
* gst_video_event_new_still_frame:
|
|
* @in_still: boolean value for the still-frame state of the event.
|
|
*
|
|
* Creates a new Still Frame event. If @in_still is %TRUE, then the event
|
|
* represents the start of a still frame sequence. If it is %FALSE, then
|
|
* the event ends a still frame sequence.
|
|
*
|
|
* To parse an event created by gst_video_event_new_still_frame() use
|
|
* gst_video_event_parse_still_frame().
|
|
*
|
|
* Returns: The new GstEvent
|
|
* Since: 0.10.26
|
|
*/
|
|
GstEvent *
|
|
gst_video_event_new_still_frame (gboolean in_still)
|
|
{
|
|
GstEvent *still_event;
|
|
GstStructure *s;
|
|
|
|
s = gst_structure_new (GST_VIDEO_EVENT_STILL_STATE_NAME,
|
|
"still-state", G_TYPE_BOOLEAN, in_still, NULL);
|
|
still_event = gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, s);
|
|
|
|
return still_event;
|
|
}
|
|
|
|
/**
|
|
* gst_video_event_parse_still_frame:
|
|
* @event: A #GstEvent to parse
|
|
* @in_still: A boolean to receive the still-frame status from the event, or NULL
|
|
*
|
|
* Parse a #GstEvent, identify if it is a Still Frame event, and
|
|
* return the still-frame state from the event if it is.
|
|
* If the event represents the start of a still frame, the in_still
|
|
* variable will be set to TRUE, otherwise FALSE. It is OK to pass NULL for the
|
|
* in_still variable order to just check whether the event is a valid still-frame
|
|
* event.
|
|
*
|
|
* Create a still frame event using gst_video_event_new_still_frame()
|
|
*
|
|
* Returns: %TRUE if the event is a valid still-frame event. %FALSE if not
|
|
* Since: 0.10.26
|
|
*/
|
|
gboolean
|
|
gst_video_event_parse_still_frame (GstEvent * event, gboolean * in_still)
|
|
{
|
|
const GstStructure *s;
|
|
gboolean ev_still_state;
|
|
|
|
g_return_val_if_fail (event != NULL, FALSE);
|
|
|
|
if (GST_EVENT_TYPE (event) != GST_EVENT_CUSTOM_DOWNSTREAM)
|
|
return FALSE; /* Not a still frame event */
|
|
|
|
s = gst_event_get_structure (event);
|
|
if (s == NULL
|
|
|| !gst_structure_has_name (s, GST_VIDEO_EVENT_STILL_STATE_NAME))
|
|
return FALSE; /* Not a still frame event */
|
|
if (!gst_structure_get_boolean (s, "still-state", &ev_still_state))
|
|
return FALSE; /* Not a still frame event */
|
|
if (in_still)
|
|
*in_still = ev_still_state;
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_video_parse_caps_palette:
|
|
* @caps: #GstCaps to parse
|
|
*
|
|
* Returns the palette data from the caps as a #GstBuffer. For
|
|
* #GST_VIDEO_FORMAT_RGB8_PALETTED this is containing 256 #guint32
|
|
* values, each containing ARGB colors in native endianness.
|
|
*
|
|
* Returns: a #GstBuffer containing the palette data. Unref after usage.
|
|
* Since: 0.10.32
|
|
*/
|
|
GstBuffer *
|
|
gst_video_parse_caps_palette (GstCaps * caps)
|
|
{
|
|
GstStructure *s;
|
|
const GValue *p_v;
|
|
GstBuffer *p;
|
|
|
|
if (!gst_caps_is_fixed (caps))
|
|
return NULL;
|
|
|
|
s = gst_caps_get_structure (caps, 0);
|
|
|
|
p_v = gst_structure_get_value (s, "palette_data");
|
|
if (!p_v || !GST_VALUE_HOLDS_BUFFER (p_v))
|
|
return NULL;
|
|
|
|
p = g_value_dup_boxed (p_v);
|
|
|
|
return p;
|
|
}
|