mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-09 10:59:39 +00:00
Code Issues 1 Projects Releases Wiki Activity

[035/906] * sys/glsink/gstvideo-common.c: * sys/glsink/gstvideo-common.h: Pull together some common raw video functions into one location. This should eventually move to -base. * sys/glsink/Makefile.am: * sys/glsink/glimagesink.c: * sys/glsink/glimagesink.h: * sys/glsink/glvideo.c: * sys/glsink/glvideo.h: * sys/glsink/gstopengl.c: Use the new video-common.h stuff. Readd support for RGB video.

Browse source
This commit is contained in:
David Schleef 2007-12-15 06:33:36 +00:00 committed by Matthew Waters
parent 4f11558976
commit 4b7396917b
8 changed files with 784 additions and 107 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
gst/gl/Makefile.am
View file

@ -1,7 +1,14 @@
plugin_LTLIBRARIES = libgstglimagesink.la
libgstglimagesink_la_SOURCES = glimagesink.c glvideo.c
libgstglimagesink_la_SOURCES = \
glimagesink.h \
glimagesink.c \
glvideo.c \
glvideo.h \
gstopengl.c \
gstvideo-common.h \
gstvideo-common.c
libgstglimagesink_la_CFLAGS = $(GST_CFLAGS) $(X_CFLAGS) $(GST_BASE_CFLAGS) \
$(GST_PLUGINS_BASE_CFLAGS)
libgstglimagesink_la_LIBADD = $(X_LIBS) $(XSHM_LIBS) -lGL \

130
gst/gl/glimagesink.c
View file

@ -30,50 +30,11 @@
#include <string.h>
#include "glvideo.h"
#include <glimagesink.h>
GST_DEBUG_CATEGORY_STATIC (gst_debug_glimage_sink);
GST_DEBUG_CATEGORY (gst_debug_glimage_sink);
#define GST_CAT_DEFAULT gst_debug_glimage_sink
#define GST_TYPE_GLIMAGE_SINK \
(gst_glimage_sink_get_type())
#define GST_GLIMAGE_SINK(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GLIMAGE_SINK,GstGLImageSink))
#define GST_GLIMAGE_SINK_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GLIMAGE_SINK,GstGLImageSinkClass))
#define GST_IS_GLIMAGE_SINK(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GLIMAGE_SINK))
#define GST_IS_GLIMAGE_SINK_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GLIMAGE_SINK))
typedef struct _GstGLImageSink GstGLImageSink;
typedef struct _GstGLImageSinkClass GstGLImageSinkClass;
struct _GstGLImageSink
{
GstVideoSink video_sink;
/* properties */
char *display_name;
/* caps */
GstCaps *caps;
int fps_n, fps_d;
int par_n, par_d;
GLVideoDisplay *display;
GLVideoDrawable *drawable;
GLVideoImageType type;
XID window_id;
};
struct _GstGLImageSinkClass
{
GstVideoSinkClass video_sink_class;
};
static void gst_glimage_sink_init_interfaces (GType type);
static void gst_glimage_sink_finalize (GObject * object);
@ -421,12 +382,12 @@ gst_glimage_sink_set_caps (GstBaseSink * bsink, GstCaps * caps)
{
GstGLImageSink *glimage_sink;
GstCaps *intersection;
GstStructure *structure;
int width;
int height;
gboolean ret;
const GValue *fps;
const GValue *par;
gboolean ok;
int fps_n, fps_d;
int par_n, par_d;
GstVideoFormat format;
GST_DEBUG ("set caps with %" GST_PTR_FORMAT, caps);
@ -440,51 +401,36 @@ gst_glimage_sink_set_caps (GstBaseSink * bsink, GstCaps * caps)
gst_caps_unref (intersection);
structure = gst_caps_get_structure (caps, 0);
ret = gst_structure_get_int (structure, "width", &width);
ret &= gst_structure_get_int (structure, "height", &height);
fps = gst_structure_get_value (structure, "framerate");
ret &= (fps != NULL);
par = gst_structure_get_value (structure, "pixel-aspect-ratio");
ok = gst_video_parse_caps (caps, &format, &width, &height);
ok &= gst_video_parse_caps_framerate (caps, &fps_n, &fps_d);
ok &= gst_video_parse_caps_pixel_aspect_ratio (caps, &par_n, &par_d);
if (!ret)
if (!ok)
return FALSE;
glimage_sink->fps_n = gst_value_get_fraction_numerator (fps);
glimage_sink->fps_d = gst_value_get_fraction_denominator (fps);
if (par) {
glimage_sink->par_n = gst_value_get_fraction_numerator (par);
glimage_sink->par_d = gst_value_get_fraction_denominator (par);
} else {
glimage_sink->par_n = 1;
glimage_sink->par_d = 1;
}
GST_VIDEO_SINK_WIDTH (glimage_sink) = width;
GST_VIDEO_SINK_HEIGHT (glimage_sink) = height;
glimage_sink->format = format;
glimage_sink->fps_n = fps_n;
glimage_sink->fps_d = fps_d;
glimage_sink->par_n = par_n;
glimage_sink->par_d = par_d;
if (strcmp (gst_structure_get_name (structure), "video/x-raw-rgb") == 0) {
int red_mask;
GST_DEBUG ("using RGB");
gst_structure_get_int (structure, "red_mask", &red_mask);
if (red_mask == 0xff000000) {
glimage_sink->type = GLVIDEO_IMAGE_TYPE_RGBA;
} else {
glimage_sink->type = GLVIDEO_IMAGE_TYPE_BGRA;
}
} else {
unsigned int fourcc;
GST_DEBUG ("using YUV");
gst_structure_get_fourcc (structure, "format", &fourcc);
if (fourcc == GST_MAKE_FOURCC ('Y', 'U', 'Y', '2')) {
switch (format) {
case GST_VIDEO_FORMAT_YUY2:
glimage_sink->type = GLVIDEO_IMAGE_TYPE_YUY2;
} else {
break;
case GST_VIDEO_FORMAT_UYVY:
glimage_sink->type = GLVIDEO_IMAGE_TYPE_UYVY;
}
break;
case GST_VIDEO_FORMAT_RGBx:
glimage_sink->type = GLVIDEO_IMAGE_TYPE_RGBx;
break;
case GST_VIDEO_FORMAT_BGRx:
glimage_sink->type = GLVIDEO_IMAGE_TYPE_BGRx;
break;
default:
break;
}
#if 0
@ -632,23 +578,3 @@ gst_glimage_sink_update_caps (GstGLImageSink * glimage_sink)
gst_caps_replace (&glimage_sink->caps, caps);
}
static gboolean
plugin_init (GstPlugin * plugin)
{
if (!gst_element_register (plugin, "glimagesink",
GST_RANK_MARGINAL, GST_TYPE_GLIMAGE_SINK))
return FALSE;
GST_DEBUG_CATEGORY_INIT (gst_debug_glimage_sink, "glimagesink", 0,
"glimagesink element");
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"glimagesink",
"OpenGL video output plugin",
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)

77
gst/gl/glimagesink.h Normal file
View file

@ -0,0 +1,77 @@
/* GStreamer
* Copyright (C) 2003 Julien Moutte <julien@moutte.net>
* Copyright (C) 2005,2006,2007 David A. Schleef <ds@schleef.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef _GLIMAGESINK_H_
#define _GLIMAGESINK_H_
#include <gst/gst.h>
#include <gst/interfaces/xoverlay.h>
#include <gst/video/gstvideosink.h>
#include <gst/video/video.h>
#include "glvideo.h"
#include <gstvideo-common.h>
GST_DEBUG_CATEGORY_EXTERN (gst_debug_glimage_sink);
#define GST_TYPE_GLIMAGE_SINK \
(gst_glimage_sink_get_type())
#define GST_GLIMAGE_SINK(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GLIMAGE_SINK,GstGLImageSink))
#define GST_GLIMAGE_SINK_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GLIMAGE_SINK,GstGLImageSinkClass))
#define GST_IS_GLIMAGE_SINK(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GLIMAGE_SINK))
#define GST_IS_GLIMAGE_SINK_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GLIMAGE_SINK))
typedef struct _GstGLImageSink GstGLImageSink;
typedef struct _GstGLImageSinkClass GstGLImageSinkClass;
struct _GstGLImageSink
{
GstVideoSink video_sink;
/* properties */
char *display_name;
/* caps */
GstCaps *caps;
GstVideoFormat format;
int fps_n, fps_d;
int par_n, par_d;
GLVideoDisplay *display;
GLVideoDrawable *drawable;
GLVideoImageType type;
XID window_id;
};
struct _GstGLImageSinkClass
{
GstVideoSinkClass video_sink_class;
};
GType gst_glimage_sink_get_type(void);
#endif

5
gst/gl/glvideo.c
View file

@ -328,13 +328,13 @@ glv_drawable_draw_image (GLVideoDrawable * drawable, GLVideoImageType type,
glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
switch (type) {
case GLVIDEO_IMAGE_TYPE_RGBA:
case GLVIDEO_IMAGE_TYPE_RGBx:
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA, width, height,
0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
GL_RGBA, GL_UNSIGNED_BYTE, data);
break;
case GLVIDEO_IMAGE_TYPE_BGRA:
case GLVIDEO_IMAGE_TYPE_BGRx:
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA, width, height,
0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
@ -351,6 +351,7 @@ glv_drawable_draw_image (GLVideoDrawable * drawable, GLVideoImageType type,
0, GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_REV_MESA, NULL);
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_MESA, data);
break;
default:
g_assert_not_reached ();
}

4
gst/gl/glvideo.h
View file

@ -10,8 +10,8 @@ typedef struct _GLVideoDisplay GLVideoDisplay;
typedef struct _GLVideoDrawable GLVideoDrawable;
typedef enum {
GLVIDEO_IMAGE_TYPE_RGBA,
GLVIDEO_IMAGE_TYPE_BGRA,
GLVIDEO_IMAGE_TYPE_RGBx,
GLVIDEO_IMAGE_TYPE_BGRx,
GLVIDEO_IMAGE_TYPE_YUY2,
GLVIDEO_IMAGE_TYPE_UYVY,
} GLVideoImageType;

53
gst/gl/gstopengl.c Normal file
View file

@ -0,0 +1,53 @@
/* GStreamer
* Copyright (C) 2003 Julien Moutte <julien@moutte.net>
* Copyright (C) 2005,2006,2007 David A. Schleef <ds@schleef.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/interfaces/xoverlay.h>
#include <gst/video/gstvideosink.h>
#include <gst/video/video.h>
#include <string.h>
#include <glimagesink.h>
static gboolean
plugin_init (GstPlugin * plugin)
{
GST_DEBUG_CATEGORY_INIT (gst_debug_glimage_sink, "glimagesink", 0,
"glimagesink element");
if (!gst_element_register (plugin, "glimagesink",
GST_RANK_MARGINAL, GST_TYPE_GLIMAGE_SINK)) {
return FALSE;
}
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"glimagesink",
"OpenGL video output plugin",
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)

560
gst/gl/gstvideo-common.c Normal file
View file

@ -0,0 +1,560 @@
/* gstvideo-common.c
* Copyright (C) 2007 David A. Schleef <ds@schleef.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gstvideo-common.h>
gboolean
gst_video_parse_caps (GstCaps * caps, GstVideoFormat * format, int *width,
int *height)
{
GstStructure *structure;
gboolean ok = TRUE;
if (!gst_caps_is_fixed (caps))
return FALSE;
structure = gst_caps_get_structure (caps, 0);
if (format) {
if (gst_structure_has_name (structure, "video/x-raw-yuv")) {
guint32 fourcc;
ok &= gst_structure_get_fourcc (structure, "format", &fourcc);
*format = gst_video_fourcc_to_format (fourcc);
if (*format == GST_VIDEO_FORMAT_UNKNOWN) {
ok = FALSE;
}
} else if (gst_structure_has_name (structure, "video/x-raw-rgb")) {
int depth;
int bpp;
int endianness;
int red_mask;
int green_mask;
int blue_mask;
ok &= gst_structure_get_int (structure, "depth", &depth);
ok &= gst_structure_get_int (structure, "bpp", &bpp);
ok &= gst_structure_get_int (structure, "endianness", &endianness);
ok &= gst_structure_get_int (structure, "red_mask", &red_mask);
ok &= gst_structure_get_int (structure, "green_mask", &green_mask);
ok &= gst_structure_get_int (structure, "blue_mask", &blue_mask);
if (depth != 24 || bpp != 32 || endianness != G_BIG_ENDIAN) {
ok = FALSE;
} else {
*format = gst_video_rgb32_masks_to_format (red_mask, green_mask,
blue_mask);
if (*format == GST_VIDEO_FORMAT_UNKNOWN) {
ok = FALSE;
}
}
} else {
ok = FALSE;
}
}
if (width) {
ok &= gst_structure_get_int (structure, "width", width);
}
if (height) {
ok &= gst_structure_get_int (structure, "height", height);
}
return ok;
}
gboolean
gst_video_parse_caps_framerate (GstCaps * caps, int *fps_n, int *fps_d)
{
GstStructure *structure;
if (!gst_caps_is_fixed (caps))
return FALSE;
structure = gst_caps_get_structure (caps, 0);
return gst_structure_get_fraction (structure, "framerate", fps_n, fps_d);
}
gboolean
gst_video_parse_caps_pixel_aspect_ratio (GstCaps * caps, int *par_n, int *par_d)
{
GstStructure *structure;
if (!gst_caps_is_fixed (caps))
return FALSE;
structure = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_fraction (structure, "pixel-aspect-ratio",
par_n, par_d)) {
*par_n = 1;
*par_d = 1;
}
return TRUE;
}
GstCaps *
gst_video_create_caps (GstVideoFormat format, int width, int height,
int framerate_n, int framerate_d, int par_n, int par_d)
{
if (gst_video_format_is_yuv (format)) {
return gst_caps_new_simple ("video/x-raw-yuv",
"format", GST_TYPE_FOURCC, gst_video_format_to_fourcc (format),
"width", G_TYPE_INT, width,
"height", G_TYPE_INT, height,
"framerate", GST_TYPE_FRACTION, framerate_n, framerate_d,
"pixel-aspect-ratio", GST_TYPE_FRACTION, par_n, par_d, NULL);
}
if (gst_video_format_is_rgb (format)) {
int red_mask;
int blue_mask;
int green_mask;
red_mask =
0xff000000U >> gst_video_format_get_component_offset (format, 0, width,
height);
green_mask =
0xff000000U >> gst_video_format_get_component_offset (format, 1, width,
height);
blue_mask =
0xff000000U >> gst_video_format_get_component_offset (format, 2, width,
height);
return gst_caps_new_simple ("video/x-raw-rgb",
"bpp", G_TYPE_INT, 32,
"depth", G_TYPE_INT, 24,
"endianness", G_TYPE_INT, G_BIG_ENDIAN,
"red_mask", G_TYPE_INT, red_mask,
"green_mask", G_TYPE_INT, green_mask,
"blue_mask", G_TYPE_INT, blue_mask,
"width", G_TYPE_INT, width,
"height", G_TYPE_INT, height,
"framerate", GST_TYPE_FRACTION, framerate_n, framerate_d,
"pixel-aspect-ratio", GST_TYPE_FRACTION, par_n, par_d, NULL);
}
return NULL;
}
GstVideoFormat
gst_video_fourcc_to_format (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 ('U', 'Y', 'V', 'Y'):
return GST_VIDEO_FORMAT_UYVY;
case GST_MAKE_FOURCC ('A', 'Y', 'U', 'V'):
return GST_VIDEO_FORMAT_AYUV;
default:
return GST_VIDEO_FORMAT_UNKNOWN;
}
}
guint32
gst_video_format_to_fourcc (GstVideoFormat format)
{
switch (format) {
case GST_VIDEO_FORMAT_I420:
return GST_MAKE_FOURCC ('I', '4', '2', '0');
case GST_VIDEO_FORMAT_YV12:
return GST_MAKE_FOURCC ('Y', 'V', '1', '2');
case GST_VIDEO_FORMAT_YUY2:
return GST_MAKE_FOURCC ('Y', 'U', 'Y', '2');
case GST_VIDEO_FORMAT_UYVY:
return GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y');
case GST_VIDEO_FORMAT_AYUV:
return GST_MAKE_FOURCC ('A', 'Y', 'U', 'V');
default:
return 0;
}
}
GstVideoFormat
gst_video_rgb32_masks_to_format (int red_mask, int green_mask, int blue_mask)
{
if (red_mask == 0xff000000 && green_mask == 0x00ff0000 &&
blue_mask == 0x0000ff00) {
return GST_VIDEO_FORMAT_RGBx;
}
if (red_mask == 0x0000ff00 && green_mask == 0x00ff0000 &&
blue_mask == 0xff000000) {
return GST_VIDEO_FORMAT_BGRx;
}
return GST_VIDEO_FORMAT_UNKNOWN;
}
gboolean
gst_video_format_is_rgb (GstVideoFormat format)
{
switch (format) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
case GST_VIDEO_FORMAT_AYUV:
return FALSE;
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
return TRUE;
default:
return FALSE;
}
}
gboolean
gst_video_format_is_yuv (GstVideoFormat format)
{
switch (format) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
case GST_VIDEO_FORMAT_AYUV:
return TRUE;
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
return FALSE;
default:
return FALSE;
}
}
gboolean
gst_video_format_has_alpha (GstVideoFormat format)
{
switch (format) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
return FALSE;
case GST_VIDEO_FORMAT_AYUV:
return TRUE;
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
return FALSE;
default:
return FALSE;
}
}
int
gst_video_format_get_row_stride (GstVideoFormat format, int component,
int width)
{
switch (format) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
if (component == 0) {
return GST_ROUND_UP_4 (width);
} else {
return GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2);
}
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
return GST_ROUND_UP_4 (width * 2);
case GST_VIDEO_FORMAT_AYUV:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
return width * 4;
default:
return 0;
}
}
int
gst_video_format_get_pixel_stride (GstVideoFormat format, int component)
{
switch (format) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
return 1;
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
if (component == 0) {
return 2;
} else {
return 4;
}
case GST_VIDEO_FORMAT_AYUV:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
return 4;
default:
return 0;
}
}
int
gst_video_format_get_component_width (GstVideoFormat format, int component,
int width)
{
switch (format) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
if (component == 0) {
return width;
} else {
return GST_ROUND_UP_2 (width) / 2;
}
case GST_VIDEO_FORMAT_AYUV:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
return width;
default:
return 0;
}
}
int
gst_video_format_get_component_height (GstVideoFormat format, int component,
int height)
{
switch (format) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
if (component == 0) {
return height;
} else {
return GST_ROUND_UP_2 (height) / 2;
}
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
case GST_VIDEO_FORMAT_AYUV:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
return height;
default:
return 0;
}
}
int
gst_video_format_get_component_offset (GstVideoFormat format, int component,
int width, int height)
{
switch (format) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
if (component == 0) {
return 0;
} else {
int offset;
offset = GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height);
if (component == 2) {
offset += GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2) *
(GST_ROUND_UP_2 (height) / 2);
}
return offset;
}
case GST_VIDEO_FORMAT_YUY2:
if (component == 0)
return 0;
if (component == 1)
return 1;
if (component == 2)
return 3;
return 0;
case GST_VIDEO_FORMAT_UYVY:
if (component == 0)
return 1;
if (component == 1)
return 0;
if (component == 2)
return 2;
return 0;
case GST_VIDEO_FORMAT_AYUV:
if (component == 0)
return 1;
if (component == 1)
return 2;
if (component == 2)
return 3;
if (component == 3)
return 0;
return 0;
case GST_VIDEO_FORMAT_RGBx:
if (component == 0)
return 0;
if (component == 1)
return 1;
if (component == 2)
return 2;
if (component == 3)
return 3;
return 0;
case GST_VIDEO_FORMAT_BGRx:
if (component == 0)
return 2;
if (component == 1)
return 1;
if (component == 2)
return 0;
if (component == 3)
return 3;
return 0;
default:
return 0;
}
}
int
gst_video_format_get_size (GstVideoFormat format, int width, int height)
{
int size;
switch (format) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
size = GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height);
size += GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2) *
(GST_ROUND_UP_2 (height) / 2) * 2;
return size;
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
return GST_ROUND_UP_4 (width * 2) * height;
case GST_VIDEO_FORMAT_AYUV:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
return width * 4 * height;
default:
return 0;
}
}
gboolean
gst_video_convert (GstVideoFormat format, int width, int height,
int fps_n, int fps_d,
GstFormat src_format, gint64 src_value,
GstFormat dest_format, gint64 * dest_value)
{
gboolean ret = FALSE;
int size;
size = gst_video_format_get_size (format, width, height);
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;
}

53
gst/gl/gstvideo-common.h Normal file
View file

@ -0,0 +1,53 @@
#ifndef __GST_VIDEO_COMMON_H__
#define __GST_VIDEO_COMMON_H__
#include <gst/gst.h>
#include <gst/video/video.h>
typedef enum {
GST_VIDEO_FORMAT_UNKNOWN,
GST_VIDEO_FORMAT_I420,
GST_VIDEO_FORMAT_YV12,
GST_VIDEO_FORMAT_YUY2,
GST_VIDEO_FORMAT_UYVY,
GST_VIDEO_FORMAT_AYUV,
GST_VIDEO_FORMAT_RGBx,
GST_VIDEO_FORMAT_BGRx
} GstVideoFormat;
gboolean gst_video_parse_caps (GstCaps *caps, GstVideoFormat *format,
int *width, int *height);
gboolean gst_video_parse_caps_framerate (GstCaps *caps,
int *fps_n, int *fps_d);
gboolean gst_video_parse_caps_pixel_aspect_ratio (GstCaps *caps,
int *par_n, int *par_d);
GstCaps * gst_video_create_caps (GstVideoFormat format,
int width, int height, int framerate_n, int framerate_d,
int par_n, int par_d);
GstVideoFormat gst_video_fourcc_to_format (guint32 fourcc);
guint32 gst_video_format_to_fourcc (GstVideoFormat format);
GstVideoFormat gst_video_rgb32_masks_to_format (int red_mask, int green_mask, int blue_mask);
gboolean gst_video_format_is_rgb (GstVideoFormat format);
gboolean gst_video_format_is_yuv (GstVideoFormat format);
gboolean gst_video_format_has_alpha (GstVideoFormat format);
int gst_video_format_get_row_stride (GstVideoFormat format, int component,
int width);
int gst_video_format_get_pixel_stride (GstVideoFormat format, int component);
int gst_video_format_get_component_width (GstVideoFormat format, int component,
int width);
int gst_video_format_get_component_height (GstVideoFormat format, int component,
int height);
int gst_video_format_get_component_offset (GstVideoFormat format, int component,
int width, int height);
int gst_video_format_get_size (GstVideoFormat format, int width, int height);
gboolean gst_video_convert (GstVideoFormat format, int width, int height,
int fps_n, int fps_d,
GstFormat src_format, gint64 src_value,
GstFormat dest_format, gint64 * dest_value);
#endif