mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-29 09:45:07 +00:00
3247 lines
99 KiB
C
3247 lines
99 KiB
C
/* GStreamer
|
|
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
|
|
* Library <2002> Ronald Bultje <rbultje@ronald.bitfreak.net>
|
|
* 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 <string.h>
|
|
#include "video.h"
|
|
|
|
/**
|
|
* SECTION:gstvideo
|
|
* @short_description: Support library for video operations
|
|
*
|
|
* <refsect2>
|
|
* <para>
|
|
* This library contains some helper functions and includes the
|
|
* videosink and videofilter base classes.
|
|
* </para>
|
|
* </refsect2>
|
|
*/
|
|
|
|
static GstVideoFormat gst_video_format_from_rgb32_masks (int red_mask,
|
|
int green_mask, int blue_mask);
|
|
static GstVideoFormat gst_video_format_from_rgba32_masks (int red_mask,
|
|
int green_mask, int blue_mask, int alpha_mask);
|
|
static GstVideoFormat gst_video_format_from_rgb24_masks (int red_mask,
|
|
int green_mask, int blue_mask);
|
|
static GstVideoFormat gst_video_format_from_rgb16_masks (int red_mask,
|
|
int green_mask, int blue_mask);
|
|
|
|
|
|
static int fill_planes (GstVideoInfo * info);
|
|
|
|
typedef struct
|
|
{
|
|
guint32 fourcc;
|
|
GstVideoFormatInfo info;
|
|
} VideoFormat;
|
|
|
|
/* depths: bits, n_components, shift, depth */
|
|
#define DPTH0 0, 0, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
|
|
#define DPTH8 8, 1, { 0, 0, 0, 0 }, { 8, 0, 0, 0 }
|
|
#define DPTH888 8, 3, { 0, 0, 0, 0 }, { 8, 8, 8, 0 }
|
|
#define DPTH8888 8, 4, { 0, 0, 0, 0 }, { 8, 8, 8, 8 }
|
|
#define DPTH10_10_10 10, 3, { 0, 0, 0, 0 }, { 10, 10, 10, 0 }
|
|
#define DPTH16 16, 1, { 0, 0, 0, 0 }, { 16, 0, 0, 0 }
|
|
#define DPTH16_16_16 16, 3, { 0, 0, 0, 0 }, { 16, 16, 16, 0 }
|
|
#define DPTH16_16_16_16 16, 4, { 0, 0, 0, 0 }, { 16, 16, 16, 16 }
|
|
#define DPTH555 16, 3, { 10, 5, 0, 0 }, { 5, 5, 5, 0 }
|
|
#define DPTH565 16, 3, { 11, 5, 0, 0 }, { 5, 6, 5, 0 }
|
|
|
|
/* pixel strides */
|
|
#define PSTR0 { 0, 0, 0, 0 }
|
|
#define PSTR1 { 1, 0, 0, 0 }
|
|
#define PSTR111 { 1, 1, 1, 0 }
|
|
#define PSTR1111 { 1, 1, 1, 1 }
|
|
#define PSTR122 { 1, 2, 2, 0 }
|
|
#define PSTR2 { 2, 0, 0, 0 }
|
|
#define PSTR222 { 2, 2, 2, 0 }
|
|
#define PSTR244 { 2, 4, 4, 0 }
|
|
#define PSTR444 { 4, 4, 4, 0 }
|
|
#define PSTR4444 { 4, 4, 4, 4 }
|
|
#define PSTR333 { 3, 3, 3, 0 }
|
|
#define PSTR488 { 4, 8, 8, 0 }
|
|
#define PSTR8888 { 8, 8, 8, 8 }
|
|
|
|
/* planes */
|
|
#define PLANE_NA 0, { 0, 0, 0, 0 }
|
|
#define PLANE0 1, { 0, 0, 0, 0 }
|
|
#define PLANE011 2, { 0, 1, 1, 0 }
|
|
#define PLANE012 3, { 0, 1, 2, 0 }
|
|
#define PLANE0123 4, { 0, 1, 2, 3 }
|
|
#define PLANE021 3, { 0, 2, 1, 0 }
|
|
|
|
/* offsets */
|
|
#define OFFS0 { 0, 0, 0, 0 }
|
|
#define OFFS013 { 0, 1, 3, 0 }
|
|
#define OFFS102 { 1, 0, 2, 0 }
|
|
#define OFFS1230 { 1, 2, 3, 0 }
|
|
#define OFFS012 { 0, 1, 2, 0 }
|
|
#define OFFS210 { 2, 1, 0, 0 }
|
|
#define OFFS123 { 1, 2, 3, 0 }
|
|
#define OFFS321 { 3, 2, 1, 0 }
|
|
#define OFFS0123 { 0, 1, 2, 3 }
|
|
#define OFFS2103 { 2, 1, 0, 3 }
|
|
#define OFFS3210 { 3, 2, 1, 0 }
|
|
#define OFFS031 { 0, 3, 1, 0 }
|
|
#define OFFS026 { 0, 2, 6, 0 }
|
|
#define OFFS001 { 0, 0, 1, 0 }
|
|
#define OFFS010 { 0, 1, 0, 0 }
|
|
#define OFFS104 { 1, 0, 4, 0 }
|
|
#define OFFS2460 { 2, 4, 6, 0 }
|
|
|
|
/* subsampling */
|
|
#define SUB410 { 0, 2, 2, 0 }, { 0, 2, 2, 0 }
|
|
#define SUB411 { 0, 2, 2, 0 }, { 0, 0, 0, 0 }
|
|
#define SUB420 { 0, 1, 1, 0 }, { 0, 1, 1, 0 }
|
|
#define SUB422 { 0, 1, 1, 0 }, { 0, 0, 0, 0 }
|
|
#define SUB4 { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
|
|
#define SUB444 { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
|
|
#define SUB4444 { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
|
|
#define SUB4204 { 0, 1, 1, 0 }, { 0, 1, 1, 0 }
|
|
|
|
#define MAKE_YUV_FORMAT(name, desc, fourcc, depth, pstride, plane, offs, sub ) \
|
|
{ fourcc, {GST_VIDEO_FORMAT_ ##name, G_STRINGIFY(name), desc, GST_VIDEO_FORMAT_FLAG_YUV, depth, pstride, plane, offs, sub } }
|
|
#define MAKE_YUVA_FORMAT(name, desc, fourcc, depth, pstride, plane, offs, sub) \
|
|
{ fourcc, {GST_VIDEO_FORMAT_ ##name, G_STRINGIFY(name), desc, GST_VIDEO_FORMAT_FLAG_YUV | GST_VIDEO_FORMAT_FLAG_ALPHA, depth, pstride, plane, offs, sub } }
|
|
|
|
#define MAKE_RGB_FORMAT(name, desc, depth, pstride, plane, offs, sub) \
|
|
{ 0x00000000, {GST_VIDEO_FORMAT_ ##name, G_STRINGIFY(name), desc, GST_VIDEO_FORMAT_FLAG_RGB, depth, pstride, plane, offs, sub } }
|
|
#define MAKE_RGB_LE_FORMAT(name, desc, depth, pstride, plane, offs, sub) \
|
|
{ 0x00000000, {GST_VIDEO_FORMAT_ ##name, G_STRINGIFY(name), desc, GST_VIDEO_FORMAT_FLAG_RGB | GST_VIDEO_FORMAT_FLAG_LE, depth, pstride, plane, offs, sub } }
|
|
#define MAKE_RGBA_FORMAT(name, desc, depth, pstride, plane, offs, sub) \
|
|
{ 0x00000000, {GST_VIDEO_FORMAT_ ##name, G_STRINGIFY(name), desc, GST_VIDEO_FORMAT_FLAG_RGB | GST_VIDEO_FORMAT_FLAG_ALPHA, depth, pstride, plane, offs, sub } }
|
|
|
|
#define MAKE_GRAY_FORMAT(name, desc, depth, pstride, plane, offs, sub) \
|
|
{ 0x00000000, {GST_VIDEO_FORMAT_ ##name, G_STRINGIFY(name), desc, GST_VIDEO_FORMAT_FLAG_GRAY, depth, pstride, plane, offs, sub } }
|
|
#define MAKE_GRAY_LE_FORMAT(name, desc, depth, pstride, plane, offs, sub) \
|
|
{ 0x00000000, {GST_VIDEO_FORMAT_ ##name, G_STRINGIFY(name), desc, GST_VIDEO_FORMAT_FLAG_GRAY | GST_VIDEO_FORMAT_FLAG_LE, depth, pstride, plane, offs, sub } }
|
|
|
|
static VideoFormat formats[] = {
|
|
{0x00000000, {GST_VIDEO_FORMAT_UNKNOWN, "UNKNOWN", "unknown video", 0, DPTH0,
|
|
PSTR0, PLANE_NA,
|
|
OFFS0}},
|
|
MAKE_YUV_FORMAT (I420, "raw video", GST_MAKE_FOURCC ('I', '4', '2', '0'),
|
|
DPTH888, PSTR111,
|
|
PLANE012, OFFS0, SUB420),
|
|
MAKE_YUV_FORMAT (YV12, "raw video", GST_MAKE_FOURCC ('Y', 'V', '1', '2'),
|
|
DPTH888, PSTR111,
|
|
PLANE021, OFFS0, SUB420),
|
|
MAKE_YUV_FORMAT (YUY2, "raw video", GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'),
|
|
DPTH888, PSTR244,
|
|
PLANE0, OFFS013, SUB422),
|
|
MAKE_YUV_FORMAT (UYVY, "raw video", GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'),
|
|
DPTH888, PSTR244,
|
|
PLANE0, OFFS102, SUB422),
|
|
MAKE_YUVA_FORMAT (AYUV, "raw video", GST_MAKE_FOURCC ('A', 'Y', 'U', 'V'),
|
|
DPTH8888,
|
|
PSTR4444, PLANE0, OFFS1230, SUB4444),
|
|
MAKE_RGB_FORMAT (RGBx, "raw video", DPTH888, PSTR444, PLANE0, OFFS012,
|
|
SUB444),
|
|
MAKE_RGB_FORMAT (BGRx, "raw video", DPTH888, PSTR444, PLANE0, OFFS210,
|
|
SUB444),
|
|
MAKE_RGB_FORMAT (xRGB, "raw video", DPTH888, PSTR444, PLANE0, OFFS123,
|
|
SUB444),
|
|
MAKE_RGB_FORMAT (xBGR, "raw video", DPTH888, PSTR444, PLANE0, OFFS321,
|
|
SUB444),
|
|
MAKE_RGBA_FORMAT (RGBA, "raw video", DPTH8888, PSTR4444, PLANE0, OFFS0123,
|
|
SUB4444),
|
|
MAKE_RGBA_FORMAT (BGRA, "raw video", DPTH8888, PSTR4444, PLANE0, OFFS2103,
|
|
SUB4444),
|
|
MAKE_RGBA_FORMAT (ARGB, "raw video", DPTH8888, PSTR4444, PLANE0, OFFS1230,
|
|
SUB4444),
|
|
MAKE_RGBA_FORMAT (ABGR, "raw video", DPTH8888, PSTR4444, PLANE0, OFFS3210,
|
|
SUB4444),
|
|
MAKE_RGB_FORMAT (RGB, "raw video", DPTH888, PSTR333, PLANE0, OFFS012, SUB444),
|
|
MAKE_RGB_FORMAT (BGR, "raw video", DPTH888, PSTR333, PLANE0, OFFS210, SUB444),
|
|
|
|
MAKE_YUV_FORMAT (Y41B, "raw video", GST_MAKE_FOURCC ('Y', '4', '1', 'B'),
|
|
DPTH888, PSTR111,
|
|
PLANE012, OFFS0, SUB411),
|
|
MAKE_YUV_FORMAT (Y42B, "raw video", GST_MAKE_FOURCC ('Y', '4', '2', 'B'),
|
|
DPTH888, PSTR111,
|
|
PLANE012, OFFS0, SUB422),
|
|
MAKE_YUV_FORMAT (YVYU, "raw video", GST_MAKE_FOURCC ('Y', 'V', 'Y', 'U'),
|
|
DPTH888, PSTR244,
|
|
PLANE0, OFFS031, SUB422),
|
|
MAKE_YUV_FORMAT (Y444, "raw video", GST_MAKE_FOURCC ('Y', '4', '4', '4'),
|
|
DPTH888, PSTR111,
|
|
PLANE012, OFFS0, SUB444),
|
|
MAKE_YUV_FORMAT (v210, "raw video", GST_MAKE_FOURCC ('v', '2', '1', '0'),
|
|
DPTH10_10_10,
|
|
PSTR0, PLANE0, OFFS0, SUB422),
|
|
MAKE_YUV_FORMAT (v216, "raw video", GST_MAKE_FOURCC ('v', '2', '1', '6'),
|
|
DPTH16_16_16,
|
|
PSTR488, PLANE0, OFFS026, SUB422),
|
|
MAKE_YUV_FORMAT (NV12, "raw video", GST_MAKE_FOURCC ('N', 'V', '1', '2'),
|
|
DPTH888, PSTR122,
|
|
PLANE011, OFFS001, SUB420),
|
|
MAKE_YUV_FORMAT (NV21, "raw video", GST_MAKE_FOURCC ('N', 'V', '2', '1'),
|
|
DPTH888, PSTR122,
|
|
PLANE011, OFFS010, SUB420),
|
|
|
|
MAKE_GRAY_FORMAT (GRAY8, "raw video", DPTH8, PSTR1, PLANE0, OFFS0, SUB4),
|
|
MAKE_GRAY_FORMAT (GRAY16_BE, "raw video", DPTH16, PSTR2, PLANE0, OFFS0, SUB4),
|
|
MAKE_GRAY_LE_FORMAT (GRAY16_LE, "raw video", DPTH16, PSTR2, PLANE0, OFFS0,
|
|
SUB4),
|
|
|
|
MAKE_YUV_FORMAT (v308, "raw video", GST_MAKE_FOURCC ('v', '3', '0', '8'),
|
|
DPTH888, PSTR333,
|
|
PLANE0, OFFS012, SUB444),
|
|
MAKE_YUV_FORMAT (Y800, "raw video", GST_MAKE_FOURCC ('Y', '8', '0', '0'),
|
|
DPTH8, PSTR1,
|
|
PLANE0, OFFS0, SUB4),
|
|
MAKE_YUV_FORMAT (Y16, "raw video", GST_MAKE_FOURCC ('Y', '1', '6', ' '),
|
|
DPTH16, PSTR2,
|
|
PLANE0, OFFS0, SUB4),
|
|
|
|
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
|
|
MAKE_RGB_LE_FORMAT (RGB16, "raw video", DPTH565, PSTR222, PLANE0, OFFS0,
|
|
SUB444),
|
|
MAKE_RGB_LE_FORMAT (BGR16, "raw video", DPTH565, PSTR222, PLANE0, OFFS0,
|
|
SUB444),
|
|
MAKE_RGB_LE_FORMAT (RGB15, "raw video", DPTH555, PSTR222, PLANE0, OFFS0,
|
|
SUB444),
|
|
MAKE_RGB_LE_FORMAT (BGR15, "raw video", DPTH555, PSTR222, PLANE0, OFFS0,
|
|
SUB444),
|
|
#else
|
|
MAKE_RGB_FORMAT (RGB16, "raw video", DPTH565, PSTR222, PLANE0, OFFS0, SUB444),
|
|
MAKE_RGB_FORMAT (BGR16, "raw video", DPTH565, PSTR222, PLANE0, OFFS0, SUB444),
|
|
MAKE_RGB_FORMAT (RGB15, "raw video", DPTH555, PSTR222, PLANE0, OFFS0, SUB444),
|
|
MAKE_RGB_FORMAT (BGR15, "raw video", DPTH555, PSTR222, PLANE0, OFFS0, SUB444),
|
|
#endif
|
|
|
|
MAKE_YUV_FORMAT (UYVP, "raw video", GST_MAKE_FOURCC ('U', 'Y', 'V', 'P'),
|
|
DPTH10_10_10,
|
|
PSTR0, PLANE0, OFFS0, SUB422),
|
|
MAKE_YUVA_FORMAT (A420, "raw video", GST_MAKE_FOURCC ('A', '4', '2', '0'),
|
|
DPTH8888,
|
|
PSTR1111, PLANE0123, OFFS0, SUB4204),
|
|
MAKE_RGBA_FORMAT (RGB8_PALETTED, "raw video", DPTH8888, PSTR1111, PLANE0,
|
|
OFFS0, SUB4444),
|
|
MAKE_YUV_FORMAT (YUV9, "raw video", GST_MAKE_FOURCC ('Y', 'U', 'V', '9'),
|
|
DPTH888, PSTR111,
|
|
PLANE012, OFFS0, SUB410),
|
|
MAKE_YUV_FORMAT (YVU9, "raw video", GST_MAKE_FOURCC ('Y', 'V', 'U', '9'),
|
|
DPTH888, PSTR111,
|
|
PLANE021, OFFS0, SUB410),
|
|
MAKE_YUV_FORMAT (IYU1, "raw video", GST_MAKE_FOURCC ('I', 'Y', 'U', '1'),
|
|
DPTH888, PSTR0,
|
|
PLANE0, OFFS104, SUB411),
|
|
MAKE_RGBA_FORMAT (ARGB64, "raw video", DPTH16_16_16_16, PSTR8888, PLANE0,
|
|
OFFS2460,
|
|
SUB444),
|
|
MAKE_YUVA_FORMAT (AYUV64, "raw video", 0x00000000, DPTH16_16_16_16, PSTR8888,
|
|
PLANE0,
|
|
OFFS2460, SUB444),
|
|
MAKE_YUV_FORMAT (r210, "raw video", GST_MAKE_FOURCC ('r', '2', '1', '0'),
|
|
DPTH10_10_10,
|
|
PSTR444, PLANE0, OFFS0, SUB444),
|
|
{0x00000000, {GST_VIDEO_FORMAT_ENCODED, "ENCODED", "encoded video",
|
|
GST_VIDEO_FORMAT_FLAG_COMPLEX, DPTH0, PSTR0, PLANE_NA, OFFS0}},
|
|
};
|
|
|
|
/**
|
|
* gst_video_frame_rate:
|
|
* @pad: pointer to a #GstPad
|
|
*
|
|
* A convenience function to retrieve a GValue holding the framerate
|
|
* from the caps on a pad.
|
|
*
|
|
* The pad needs to have negotiated caps containing a framerate property.
|
|
*
|
|
* Returns: NULL if the pad has no configured caps or the configured caps
|
|
* do not contain a framerate.
|
|
*
|
|
*/
|
|
const GValue *
|
|
gst_video_frame_rate (GstPad * pad)
|
|
{
|
|
const GValue *fps;
|
|
gchar *fps_string;
|
|
|
|
const GstCaps *caps = NULL;
|
|
GstStructure *structure;
|
|
|
|
/* get pad caps */
|
|
caps = GST_PAD_CAPS (pad);
|
|
if (caps == NULL) {
|
|
g_warning ("gstvideo: failed to get caps of pad %s:%s",
|
|
GST_DEBUG_PAD_NAME (pad));
|
|
return NULL;
|
|
}
|
|
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
if ((fps = gst_structure_get_value (structure, "framerate")) == NULL) {
|
|
g_warning ("gstvideo: failed to get framerate property of pad %s:%s",
|
|
GST_DEBUG_PAD_NAME (pad));
|
|
return NULL;
|
|
}
|
|
if (!GST_VALUE_HOLDS_FRACTION (fps)) {
|
|
g_warning
|
|
("gstvideo: framerate property of pad %s:%s is not of type Fraction",
|
|
GST_DEBUG_PAD_NAME (pad));
|
|
return NULL;
|
|
}
|
|
|
|
fps_string = gst_value_serialize (fps);
|
|
GST_DEBUG ("Framerate request on pad %s:%s: %s",
|
|
GST_DEBUG_PAD_NAME (pad), fps_string);
|
|
g_free (fps_string);
|
|
|
|
return fps;
|
|
}
|
|
|
|
/**
|
|
* gst_video_get_size:
|
|
* @pad: pointer to a #GstPad
|
|
* @width: pointer to integer to hold pixel width of the video frames (output)
|
|
* @height: pointer to integer to hold pixel height of the video frames (output)
|
|
*
|
|
* Inspect the caps of the provided pad and retrieve the width and height of
|
|
* the video frames it is configured for.
|
|
*
|
|
* The pad needs to have negotiated caps containing width and height properties.
|
|
*
|
|
* Returns: TRUE if the width and height could be retrieved.
|
|
*
|
|
*/
|
|
gboolean
|
|
gst_video_get_size (GstPad * pad, gint * width, gint * height)
|
|
{
|
|
const GstCaps *caps = NULL;
|
|
GstStructure *structure;
|
|
gboolean ret;
|
|
|
|
g_return_val_if_fail (pad != NULL, FALSE);
|
|
g_return_val_if_fail (width != NULL, FALSE);
|
|
g_return_val_if_fail (height != NULL, FALSE);
|
|
|
|
caps = GST_PAD_CAPS (pad);
|
|
|
|
if (caps == NULL) {
|
|
g_warning ("gstvideo: failed to get caps of pad %s:%s",
|
|
GST_DEBUG_PAD_NAME (pad));
|
|
return FALSE;
|
|
}
|
|
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
ret = gst_structure_get_int (structure, "width", width);
|
|
ret &= gst_structure_get_int (structure, "height", height);
|
|
|
|
if (!ret) {
|
|
g_warning ("gstvideo: failed to get size properties on pad %s:%s",
|
|
GST_DEBUG_PAD_NAME (pad));
|
|
return FALSE;
|
|
}
|
|
|
|
GST_DEBUG ("size request on pad %s:%s: %dx%d",
|
|
GST_DEBUG_PAD_NAME (pad), width ? *width : -1, height ? *height : -1);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_video_calculate_display_ratio:
|
|
* @dar_n: Numerator of the calculated display_ratio
|
|
* @dar_d: Denominator of the calculated display_ratio
|
|
* @video_width: Width of the video frame in pixels
|
|
* @video_height: Height of the video frame in pixels
|
|
* @video_par_n: Numerator of the pixel aspect ratio of the input video.
|
|
* @video_par_d: Denominator of the pixel aspect ratio of the input video.
|
|
* @display_par_n: Numerator of the pixel aspect ratio of the display device
|
|
* @display_par_d: Denominator of the pixel aspect ratio of the display device
|
|
*
|
|
* Given the Pixel Aspect Ratio and size of an input video frame, and the
|
|
* pixel aspect ratio of the intended display device, calculates the actual
|
|
* display ratio the video will be rendered with.
|
|
*
|
|
* Returns: A boolean indicating success and a calculated Display Ratio in the
|
|
* dar_n and dar_d parameters.
|
|
* The return value is FALSE in the case of integer overflow or other error.
|
|
*
|
|
* Since: 0.10.7
|
|
*/
|
|
gboolean
|
|
gst_video_calculate_display_ratio (guint * dar_n, guint * dar_d,
|
|
guint video_width, guint video_height,
|
|
guint video_par_n, guint video_par_d,
|
|
guint display_par_n, guint display_par_d)
|
|
{
|
|
gint num, den;
|
|
gint tmp_n, tmp_d;
|
|
|
|
g_return_val_if_fail (dar_n != NULL, FALSE);
|
|
g_return_val_if_fail (dar_d != NULL, FALSE);
|
|
|
|
/* Calculate (video_width * video_par_n * display_par_d) /
|
|
* (video_height * video_par_d * display_par_n) */
|
|
if (!gst_util_fraction_multiply (video_width, video_height, video_par_n,
|
|
video_par_d, &tmp_n, &tmp_d))
|
|
goto error_overflow;
|
|
|
|
if (!gst_util_fraction_multiply (tmp_n, tmp_d, display_par_d, display_par_n,
|
|
&num, &den))
|
|
goto error_overflow;
|
|
|
|
g_return_val_if_fail (num > 0, FALSE);
|
|
g_return_val_if_fail (den > 0, FALSE);
|
|
|
|
*dar_n = num;
|
|
*dar_d = den;
|
|
|
|
return TRUE;
|
|
error_overflow:
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* gst_video_format_parse_caps_interlaced:
|
|
* @caps: the fixed #GstCaps to parse
|
|
* @interlaced: whether @caps represents interlaced video or not, may be NULL (output)
|
|
*
|
|
* Extracts whether the caps represents interlaced content or not and places it
|
|
* in @interlaced.
|
|
*
|
|
* Since: 0.10.23
|
|
*
|
|
* Returns: TRUE if @caps was parsed correctly.
|
|
*/
|
|
gboolean
|
|
gst_video_format_parse_caps_interlaced (GstCaps * caps, gboolean * interlaced)
|
|
{
|
|
GstStructure *structure;
|
|
|
|
if (!gst_caps_is_fixed (caps))
|
|
return FALSE;
|
|
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
|
|
if (interlaced) {
|
|
if (!gst_structure_get_boolean (structure, "interlaced", interlaced))
|
|
*interlaced = FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_video_parse_caps_color_matrix:
|
|
* @caps: the fixed #GstCaps to parse
|
|
*
|
|
* Extracts the color matrix used by the caps. Possible values are
|
|
* "sdtv" for the standard definition color matrix (as specified in
|
|
* Rec. ITU-R BT.470-6) or "hdtv" for the high definition color
|
|
* matrix (as specified in Rec. ITU-R BT.709)
|
|
*
|
|
* Since: 0.10.29
|
|
*
|
|
* Returns: a color matrix string, or NULL if no color matrix could be
|
|
* determined.
|
|
*/
|
|
const char *
|
|
gst_video_parse_caps_color_matrix (GstCaps * caps)
|
|
{
|
|
GstStructure *structure;
|
|
const char *s;
|
|
|
|
if (!gst_caps_is_fixed (caps))
|
|
return NULL;
|
|
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
|
|
s = gst_structure_get_string (structure, "color-matrix");
|
|
if (s)
|
|
return s;
|
|
|
|
if (gst_structure_has_name (structure, "video/x-raw-yuv")) {
|
|
return "sdtv";
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* gst_video_parse_caps_chroma_site:
|
|
* @caps: the fixed #GstCaps to parse
|
|
*
|
|
* Extracts the chroma site used by the caps. Possible values are
|
|
* "mpeg2" for MPEG-2 style chroma siting (co-sited horizontally,
|
|
* halfway-sited vertically), "jpeg" for JPEG and Theora style
|
|
* chroma siting (halfway-sited both horizontally and vertically).
|
|
* Other chroma site values are possible, but uncommon.
|
|
*
|
|
* When no chroma site is specified in the caps, it should be assumed
|
|
* to be "mpeg2".
|
|
*
|
|
* Since: 0.10.29
|
|
*
|
|
* Returns: a chroma site string, or NULL if no chroma site could be
|
|
* determined.
|
|
*/
|
|
const char *
|
|
gst_video_parse_caps_chroma_site (GstCaps * caps)
|
|
{
|
|
GstStructure *structure;
|
|
const char *s;
|
|
|
|
if (!gst_caps_is_fixed (caps))
|
|
return NULL;
|
|
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
|
|
s = gst_structure_get_string (structure, "chroma-site");
|
|
if (s)
|
|
return s;
|
|
|
|
if (gst_structure_has_name (structure, "video/x-raw-yuv")) {
|
|
return "mpeg2";
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* gst_video_format_parse_caps:
|
|
* @caps: the #GstCaps to parse
|
|
* @format: the #GstVideoFormat of the video represented by @caps (output)
|
|
* @width: the width of the video represented by @caps, may be NULL (output)
|
|
* @height: the height of the video represented by @caps, may be NULL (output)
|
|
*
|
|
* Determines the #GstVideoFormat of @caps and places it in the location
|
|
* pointed to by @format. Extracts the size of the video and places it
|
|
* in the location pointed to by @width and @height. If @caps does not
|
|
* represent a video format or does not contain height and width, the
|
|
* function will fail and return FALSE. If @caps does not represent a raw
|
|
* video format listed in #GstVideoFormat, but still contains video caps,
|
|
* this function will return TRUE and set @format to #GST_VIDEO_FORMAT_UNKNOWN.
|
|
*
|
|
* Since: 0.10.16
|
|
*
|
|
* Returns: TRUE if @caps was parsed correctly.
|
|
*/
|
|
gboolean
|
|
gst_video_format_parse_caps (const 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_format_from_fourcc (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 = 0;
|
|
int red_mask = 0;
|
|
int green_mask = 0;
|
|
int blue_mask = 0;
|
|
int alpha_mask = 0;
|
|
gboolean have_alpha;
|
|
|
|
ok &= gst_structure_get_int (structure, "depth", &depth);
|
|
ok &= gst_structure_get_int (structure, "bpp", &bpp);
|
|
|
|
if (bpp != 8) {
|
|
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);
|
|
}
|
|
have_alpha = gst_structure_get_int (structure, "alpha_mask", &alpha_mask);
|
|
|
|
if (depth == 30 && bpp == 32 && endianness == G_BIG_ENDIAN) {
|
|
*format = GST_VIDEO_FORMAT_r210;
|
|
} else if (depth == 24 && bpp == 32 && endianness == G_BIG_ENDIAN) {
|
|
*format = gst_video_format_from_rgb32_masks (red_mask, green_mask,
|
|
blue_mask);
|
|
if (*format == GST_VIDEO_FORMAT_UNKNOWN) {
|
|
ok = FALSE;
|
|
}
|
|
} else if (depth == 32 && bpp == 32 && endianness == G_BIG_ENDIAN &&
|
|
have_alpha) {
|
|
*format = gst_video_format_from_rgba32_masks (red_mask, green_mask,
|
|
blue_mask, alpha_mask);
|
|
if (*format == GST_VIDEO_FORMAT_UNKNOWN) {
|
|
ok = FALSE;
|
|
}
|
|
} else if (depth == 24 && bpp == 24 && endianness == G_BIG_ENDIAN) {
|
|
*format = gst_video_format_from_rgb24_masks (red_mask, green_mask,
|
|
blue_mask);
|
|
if (*format == GST_VIDEO_FORMAT_UNKNOWN) {
|
|
ok = FALSE;
|
|
}
|
|
} 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);
|
|
if (*format == GST_VIDEO_FORMAT_UNKNOWN) {
|
|
ok = FALSE;
|
|
}
|
|
} 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;
|
|
ok = FALSE;
|
|
}
|
|
} else {
|
|
ok = FALSE;
|
|
}
|
|
} else if (gst_structure_has_name (structure, "video/x-raw-gray")) {
|
|
int depth;
|
|
int bpp;
|
|
int endianness;
|
|
|
|
ok &= gst_structure_get_int (structure, "depth", &depth);
|
|
ok &= gst_structure_get_int (structure, "bpp", &bpp);
|
|
|
|
if (bpp > 8)
|
|
ok &= gst_structure_get_int (structure, "endianness", &endianness);
|
|
|
|
if (depth == 8 && bpp == 8) {
|
|
*format = GST_VIDEO_FORMAT_GRAY8;
|
|
} else if (depth == 16 && bpp == 16 && endianness == G_BIG_ENDIAN) {
|
|
*format = GST_VIDEO_FORMAT_GRAY16_BE;
|
|
} else if (depth == 16 && bpp == 16 && endianness == G_LITTLE_ENDIAN) {
|
|
*format = GST_VIDEO_FORMAT_GRAY16_LE;
|
|
} else {
|
|
ok = FALSE;
|
|
}
|
|
} else if (g_str_has_prefix (gst_structure_get_name (structure), "video/")) {
|
|
*format = GST_VIDEO_FORMAT_UNKNOWN;
|
|
} 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;
|
|
}
|
|
|
|
|
|
/**
|
|
* gst_video_parse_caps_framerate:
|
|
* @caps: pointer to a #GstCaps instance
|
|
* @fps_n: pointer to integer to hold numerator of frame rate (output)
|
|
* @fps_d: pointer to integer to hold denominator of frame rate (output)
|
|
*
|
|
* Extracts the frame rate from @caps and places the values in the locations
|
|
* pointed to by @fps_n and @fps_d. Returns TRUE if the values could be
|
|
* parsed correctly, FALSE if not.
|
|
*
|
|
* This function can be used with #GstCaps that have any media type; it
|
|
* is not limited to formats handled by #GstVideoFormat.
|
|
*
|
|
* Since: 0.10.16
|
|
*
|
|
* Returns: TRUE if @caps was parsed correctly.
|
|
*/
|
|
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);
|
|
}
|
|
|
|
/**
|
|
* gst_video_parse_caps_pixel_aspect_ratio:
|
|
* @caps: pointer to a #GstCaps instance
|
|
* @par_n: pointer to numerator of pixel aspect ratio (output)
|
|
* @par_d: pointer to denominator of pixel aspect ratio (output)
|
|
*
|
|
* Extracts the pixel aspect ratio from @caps and places the values in
|
|
* the locations pointed to by @par_n and @par_d. Returns TRUE if the
|
|
* values could be parsed correctly, FALSE if not.
|
|
*
|
|
* This function can be used with #GstCaps that have any media type; it
|
|
* is not limited to formats handled by #GstVideoFormat.
|
|
*
|
|
* Since: 0.10.16
|
|
*
|
|
* Returns: TRUE if @caps was parsed correctly.
|
|
*/
|
|
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;
|
|
}
|
|
|
|
/**
|
|
* gst_video_format_new_caps_interlaced:
|
|
* @format: the #GstVideoFormat describing the raw video format
|
|
* @width: width of video
|
|
* @height: height of video
|
|
* @framerate_n: numerator of frame rate
|
|
* @framerate_d: denominator of frame rate
|
|
* @par_n: numerator of pixel aspect ratio
|
|
* @par_d: denominator of pixel aspect ratio
|
|
* @interlaced: #TRUE if the format is interlaced
|
|
*
|
|
* Creates a new #GstCaps object based on the parameters provided.
|
|
*
|
|
* Since: 0.10.23
|
|
*
|
|
* Returns: a new #GstCaps object, or NULL if there was an error
|
|
*/
|
|
GstCaps *
|
|
gst_video_format_new_caps_interlaced (GstVideoFormat format,
|
|
int width, int height, int framerate_n, int framerate_d, int par_n,
|
|
int par_d, gboolean interlaced)
|
|
{
|
|
GstCaps *res;
|
|
|
|
res =
|
|
gst_video_format_new_caps (format, width, height, framerate_n,
|
|
framerate_d, par_n, par_d);
|
|
if (interlaced && (res != NULL))
|
|
gst_caps_set_simple (res, "interlaced", G_TYPE_BOOLEAN, TRUE, NULL);
|
|
|
|
return res;
|
|
}
|
|
|
|
static GstCaps *
|
|
gst_video_format_new_caps_raw (GstVideoFormat format)
|
|
{
|
|
g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, NULL);
|
|
|
|
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), NULL);
|
|
}
|
|
if (gst_video_format_is_rgb (format)) {
|
|
GstCaps *caps;
|
|
int red_mask = 0;
|
|
int blue_mask = 0;
|
|
int green_mask = 0;
|
|
int alpha_mask;
|
|
int depth;
|
|
int bpp;
|
|
gboolean have_alpha;
|
|
unsigned int mask = 0;
|
|
|
|
switch (format) {
|
|
case GST_VIDEO_FORMAT_RGBx:
|
|
case GST_VIDEO_FORMAT_BGRx:
|
|
case GST_VIDEO_FORMAT_xRGB:
|
|
case GST_VIDEO_FORMAT_xBGR:
|
|
bpp = 32;
|
|
depth = 24;
|
|
have_alpha = FALSE;
|
|
break;
|
|
case GST_VIDEO_FORMAT_RGBA:
|
|
case GST_VIDEO_FORMAT_BGRA:
|
|
case GST_VIDEO_FORMAT_ARGB:
|
|
case GST_VIDEO_FORMAT_ABGR:
|
|
bpp = 32;
|
|
depth = 32;
|
|
have_alpha = TRUE;
|
|
break;
|
|
case GST_VIDEO_FORMAT_RGB:
|
|
case GST_VIDEO_FORMAT_BGR:
|
|
bpp = 24;
|
|
depth = 24;
|
|
have_alpha = FALSE;
|
|
break;
|
|
case GST_VIDEO_FORMAT_RGB16:
|
|
case GST_VIDEO_FORMAT_BGR16:
|
|
bpp = 16;
|
|
depth = 16;
|
|
have_alpha = FALSE;
|
|
break;
|
|
case GST_VIDEO_FORMAT_RGB15:
|
|
case GST_VIDEO_FORMAT_BGR15:
|
|
bpp = 16;
|
|
depth = 15;
|
|
have_alpha = FALSE;
|
|
break;
|
|
case GST_VIDEO_FORMAT_RGB8_PALETTED:
|
|
bpp = 8;
|
|
depth = 8;
|
|
have_alpha = FALSE;
|
|
break;
|
|
case GST_VIDEO_FORMAT_ARGB64:
|
|
bpp = 64;
|
|
depth = 64;
|
|
have_alpha = TRUE;
|
|
break;
|
|
case GST_VIDEO_FORMAT_r210:
|
|
bpp = 32;
|
|
depth = 30;
|
|
have_alpha = FALSE;
|
|
break;
|
|
default:
|
|
return NULL;
|
|
}
|
|
if (bpp == 32 && depth == 30) {
|
|
red_mask = 0x3ff00000;
|
|
green_mask = 0x000ffc00;
|
|
blue_mask = 0x000003ff;
|
|
have_alpha = FALSE;
|
|
} else if (bpp == 32 || bpp == 24 || bpp == 64) {
|
|
if (bpp == 32) {
|
|
mask = 0xff000000;
|
|
} else {
|
|
mask = 0xff0000;
|
|
}
|
|
red_mask =
|
|
mask >> (8 * gst_video_format_get_component_offset (format, 0, 0, 0));
|
|
green_mask =
|
|
mask >> (8 * gst_video_format_get_component_offset (format, 1, 0, 0));
|
|
blue_mask =
|
|
mask >> (8 * gst_video_format_get_component_offset (format, 2, 0, 0));
|
|
} else if (bpp == 16) {
|
|
switch (format) {
|
|
case GST_VIDEO_FORMAT_RGB16:
|
|
red_mask = GST_VIDEO_COMP1_MASK_16_INT;
|
|
green_mask = GST_VIDEO_COMP2_MASK_16_INT;
|
|
blue_mask = GST_VIDEO_COMP3_MASK_16_INT;
|
|
break;
|
|
case GST_VIDEO_FORMAT_BGR16:
|
|
red_mask = GST_VIDEO_COMP3_MASK_16_INT;
|
|
green_mask = GST_VIDEO_COMP2_MASK_16_INT;
|
|
blue_mask = GST_VIDEO_COMP1_MASK_16_INT;
|
|
break;
|
|
break;
|
|
case GST_VIDEO_FORMAT_RGB15:
|
|
red_mask = GST_VIDEO_COMP1_MASK_15_INT;
|
|
green_mask = GST_VIDEO_COMP2_MASK_15_INT;
|
|
blue_mask = GST_VIDEO_COMP3_MASK_15_INT;
|
|
break;
|
|
case GST_VIDEO_FORMAT_BGR15:
|
|
red_mask = GST_VIDEO_COMP3_MASK_15_INT;
|
|
green_mask = GST_VIDEO_COMP2_MASK_15_INT;
|
|
blue_mask = GST_VIDEO_COMP1_MASK_15_INT;
|
|
break;
|
|
default:
|
|
g_assert_not_reached ();
|
|
}
|
|
} else if (bpp != 8) {
|
|
g_assert_not_reached ();
|
|
}
|
|
|
|
caps = gst_caps_new_simple ("video/x-raw-rgb",
|
|
"bpp", G_TYPE_INT, bpp, "depth", G_TYPE_INT, depth, NULL);
|
|
|
|
if (bpp != 8) {
|
|
gst_caps_set_simple (caps,
|
|
"endianness", G_TYPE_INT, bpp == 16 ? G_BYTE_ORDER : G_BIG_ENDIAN,
|
|
"red_mask", G_TYPE_INT, red_mask,
|
|
"green_mask", G_TYPE_INT, green_mask,
|
|
"blue_mask", G_TYPE_INT, blue_mask, NULL);
|
|
}
|
|
|
|
if (have_alpha) {
|
|
alpha_mask =
|
|
mask >> (8 * gst_video_format_get_component_offset (format, 3, 0, 0));
|
|
gst_caps_set_simple (caps, "alpha_mask", G_TYPE_INT, alpha_mask, NULL);
|
|
}
|
|
return caps;
|
|
}
|
|
|
|
if (gst_video_format_is_gray (format)) {
|
|
GstCaps *caps;
|
|
int bpp;
|
|
int depth;
|
|
int endianness;
|
|
|
|
switch (format) {
|
|
case GST_VIDEO_FORMAT_GRAY8:
|
|
bpp = depth = 8;
|
|
endianness = G_BIG_ENDIAN;
|
|
break;
|
|
case GST_VIDEO_FORMAT_GRAY16_BE:
|
|
bpp = depth = 16;
|
|
endianness = G_BIG_ENDIAN;
|
|
break;
|
|
case GST_VIDEO_FORMAT_GRAY16_LE:
|
|
bpp = depth = 16;
|
|
endianness = G_LITTLE_ENDIAN;
|
|
break;
|
|
default:
|
|
return NULL;
|
|
break;
|
|
}
|
|
|
|
if (bpp <= 8) {
|
|
caps = gst_caps_new_simple ("video/x-raw-gray",
|
|
"bpp", G_TYPE_INT, bpp, "depth", G_TYPE_INT, depth, NULL);
|
|
} else {
|
|
caps = gst_caps_new_simple ("video/x-raw-gray",
|
|
"bpp", G_TYPE_INT, bpp,
|
|
"depth", G_TYPE_INT, depth,
|
|
"endianness", G_TYPE_INT, endianness, NULL);
|
|
}
|
|
|
|
return caps;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* gst_video_format_new_template_caps:
|
|
* @format: the #GstVideoFormat describing the raw video format
|
|
*
|
|
* Creates a new #GstCaps object based on the parameters provided.
|
|
* Size, frame rate, and pixel aspect ratio are set to the full
|
|
* range.
|
|
*
|
|
* Since: 0.10.33
|
|
*
|
|
* Returns: a new #GstCaps object, or NULL if there was an error
|
|
*/
|
|
GstCaps *
|
|
gst_video_format_new_template_caps (GstVideoFormat format)
|
|
{
|
|
GstCaps *caps;
|
|
GstStructure *structure;
|
|
|
|
g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, NULL);
|
|
|
|
caps = gst_video_format_new_caps_raw (format);
|
|
if (caps) {
|
|
GValue value = { 0 };
|
|
GValue v = { 0 };
|
|
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
|
|
gst_structure_set (structure,
|
|
"width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
|
|
"height", GST_TYPE_INT_RANGE, 1, G_MAXINT,
|
|
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1,
|
|
"pixel-aspect-ratio", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
|
|
|
|
g_value_init (&value, GST_TYPE_LIST);
|
|
g_value_init (&v, G_TYPE_BOOLEAN);
|
|
g_value_set_boolean (&v, TRUE);
|
|
gst_value_list_append_value (&value, &v);
|
|
g_value_set_boolean (&v, FALSE);
|
|
gst_value_list_append_value (&value, &v);
|
|
g_value_unset (&v);
|
|
|
|
gst_structure_take_value (structure, "interlaced", &value);
|
|
}
|
|
|
|
return caps;
|
|
}
|
|
|
|
/**
|
|
* gst_video_format_new_caps:
|
|
* @format: the #GstVideoFormat describing the raw video format
|
|
* @width: width of video
|
|
* @height: height of video
|
|
* @framerate_n: numerator of frame rate
|
|
* @framerate_d: denominator of frame rate
|
|
* @par_n: numerator of pixel aspect ratio
|
|
* @par_d: denominator of pixel aspect ratio
|
|
*
|
|
* Creates a new #GstCaps object based on the parameters provided.
|
|
*
|
|
* Since: 0.10.16
|
|
*
|
|
* Returns: a new #GstCaps object, or NULL if there was an error
|
|
*/
|
|
GstCaps *
|
|
gst_video_format_new_caps (GstVideoFormat format, int width,
|
|
int height, int framerate_n, int framerate_d, int par_n, int par_d)
|
|
{
|
|
GstCaps *caps;
|
|
GstStructure *structure;
|
|
|
|
g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, NULL);
|
|
g_return_val_if_fail (width > 0 && height > 0, NULL);
|
|
|
|
caps = gst_video_format_new_caps_raw (format);
|
|
if (caps) {
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
|
|
gst_structure_set (structure,
|
|
"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 caps;
|
|
}
|
|
|
|
|
|
/**
|
|
* 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_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;
|
|
|
|
/* 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);
|
|
}
|
|
|
|
#if 0
|
|
static const gchar *interlace_mode[] = {
|
|
"progressive",
|
|
"interleaved",
|
|
"mixed",
|
|
"fields"
|
|
};
|
|
|
|
static const gchar *
|
|
gst_interlace_mode_to_string (GstVideoInterlaceMode mode)
|
|
{
|
|
if (mode < 0 || mode >= G_N_ELEMENTS (interlace_mode))
|
|
return NULL;
|
|
|
|
return interlace_mode[mode];
|
|
}
|
|
|
|
static GstVideoInterlaceMode
|
|
gst_interlace_mode_from_string (const gchar * mode)
|
|
{
|
|
gint i;
|
|
for (i = 0; i < G_N_ELEMENTS (interlace_mode); i++) {
|
|
if (g_str_equal (interlace_mode[i], mode))
|
|
return i;
|
|
}
|
|
return GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
|
|
}
|
|
#endif
|
|
|
|
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:
|
|
* @cinfo: a #GstVideoInfo
|
|
* @color: a colorimetry string
|
|
*
|
|
* Check if the colorimetry information in @cinfo 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 = GST_VIDEO_FORMAT_UNKNOWN;
|
|
gint width = 0, height = 0;
|
|
gint fps_n, fps_d;
|
|
gint par_n, par_d;
|
|
gboolean interlaced;
|
|
|
|
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-yuv")) {
|
|
guint32 fourcc;
|
|
|
|
if (!gst_structure_get_fourcc (structure, "format", &fourcc))
|
|
goto no_format;
|
|
|
|
format = gst_video_format_from_fourcc (fourcc);
|
|
} else if (gst_structure_has_name (structure, "video/x-raw-rgb")) {
|
|
int depth;
|
|
int bpp;
|
|
int endianness = 0;
|
|
int red_mask = 0;
|
|
int green_mask = 0;
|
|
int blue_mask = 0;
|
|
int alpha_mask = 0;
|
|
|
|
if (!gst_structure_get_int (structure, "depth", &depth) ||
|
|
!gst_structure_get_int (structure, "bpp", &bpp))
|
|
goto no_bpp_depth;
|
|
|
|
if (bpp != 8) {
|
|
gst_structure_get_int (structure, "endianness", &endianness);
|
|
gst_structure_get_int (structure, "red_mask", &red_mask);
|
|
gst_structure_get_int (structure, "green_mask", &green_mask);
|
|
gst_structure_get_int (structure, "blue_mask", &blue_mask);
|
|
}
|
|
gst_structure_get_int (structure, "alpha_mask", &alpha_mask);
|
|
format = gst_video_format_from_masks (depth, bpp, endianness,
|
|
red_mask, green_mask, blue_mask, alpha_mask);
|
|
} else if (gst_structure_has_name (structure, "video/x-raw-gray")) {
|
|
int depth;
|
|
int bpp;
|
|
int endianness;
|
|
|
|
if (!gst_structure_get_int (structure, "depth", &depth) ||
|
|
!gst_structure_get_int (structure, "bpp", &bpp))
|
|
goto no_bpp_depth;
|
|
|
|
/* endianness is mandatory for bpp > 8 */
|
|
if (bpp > 8 &&
|
|
!gst_structure_get_int (structure, "endianness", &endianness))
|
|
goto no_endianess;
|
|
|
|
if (depth == 8 && bpp == 8) {
|
|
format = GST_VIDEO_FORMAT_GRAY8;
|
|
} else if (depth == 16 && bpp == 16 && endianness == G_BIG_ENDIAN) {
|
|
format = GST_VIDEO_FORMAT_GRAY16_BE;
|
|
} else if (depth == 16 && bpp == 16 && endianness == G_LITTLE_ENDIAN) {
|
|
format = GST_VIDEO_FORMAT_GRAY16_LE;
|
|
}
|
|
} else if (g_str_has_prefix (gst_structure_get_name (structure), "video/") ||
|
|
g_str_has_prefix (gst_structure_get_name (structure), "image/"))
|
|
format = GST_VIDEO_FORMAT_ENCODED;
|
|
|
|
if (format == GST_VIDEO_FORMAT_UNKNOWN)
|
|
goto unknown_format;
|
|
|
|
/* width and height are mandatory, except for non-raw-formats */
|
|
if (!gst_structure_get_int (structure, "width", &width) &&
|
|
format != GST_VIDEO_FORMAT_ENCODED)
|
|
goto no_width;
|
|
if (!gst_structure_get_int (structure, "height", &height) &&
|
|
format != GST_VIDEO_FORMAT_ENCODED)
|
|
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)
|
|
info->interlace_mode = GST_VIDEO_INTERLACE_MODE_INTERLEAVED;
|
|
else
|
|
info->interlace_mode = GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
|
|
|
|
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 */
|
|
no_format:
|
|
{
|
|
GST_ERROR ("no format given");
|
|
return FALSE;
|
|
}
|
|
unknown_format:
|
|
{
|
|
GST_ERROR ("unknown format");
|
|
return FALSE;
|
|
}
|
|
no_width:
|
|
{
|
|
GST_ERROR ("no width property given");
|
|
return FALSE;
|
|
}
|
|
no_height:
|
|
{
|
|
GST_ERROR ("no height property given");
|
|
return FALSE;
|
|
}
|
|
|
|
no_bpp_depth:
|
|
{
|
|
GST_ERROR ("no bpp or depth given");
|
|
return FALSE;
|
|
}
|
|
|
|
no_endianess:
|
|
{
|
|
GST_ERROR ("no endianness given");
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gst_video_info_is_equal:
|
|
* @info: a #GstVideoInfo
|
|
* @other: a #GstVideoInfo
|
|
*
|
|
* Compares two #GstVideoInfo and returns whether they are equal or not
|
|
*
|
|
* Returns: %TRUE if @info and @other are equal, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_video_info_is_equal (const GstVideoInfo * info, const GstVideoInfo * other)
|
|
{
|
|
if (GST_VIDEO_INFO_FORMAT (info) != GST_VIDEO_INFO_FORMAT (other))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_INTERLACE_MODE (info) !=
|
|
GST_VIDEO_INFO_INTERLACE_MODE (other))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_FLAGS (info) != GST_VIDEO_INFO_FLAGS (other))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_WIDTH (info) != GST_VIDEO_INFO_WIDTH (other))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_HEIGHT (info) != GST_VIDEO_INFO_HEIGHT (other))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_SIZE (info) != GST_VIDEO_INFO_SIZE (other))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_PAR_N (info) != GST_VIDEO_INFO_PAR_N (other))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_PAR_D (info) != GST_VIDEO_INFO_PAR_D (other))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_FPS_N (info) != GST_VIDEO_INFO_FPS_N (other))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_FPS_D (info) != GST_VIDEO_INFO_FPS_D (other))
|
|
return FALSE;
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* 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 *capsname = NULL;
|
|
|
|
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);
|
|
|
|
if (GST_VIDEO_INFO_IS_YUV (info))
|
|
capsname = "video/x-raw-yuv";
|
|
else if (GST_VIDEO_INFO_IS_RGB (info))
|
|
capsname = "video/x-raw-rgb";
|
|
else if (GST_VIDEO_INFO_IS_GRAY (info))
|
|
capsname = "video/x-raw-gray";
|
|
|
|
caps = gst_caps_new_simple (capsname,
|
|
"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 (GST_VIDEO_INFO_IS_YUV (info))
|
|
gst_caps_set_simple (caps, "format", GST_TYPE_FOURCC,
|
|
gst_video_format_to_fourcc (info->finfo->format), NULL);
|
|
else if (GST_VIDEO_INFO_IS_RGB (info) || GST_VIDEO_INFO_IS_GRAY (info))
|
|
gst_caps_set_simple (caps, "depth", G_TYPE_INT,
|
|
info->finfo->bits * GST_VIDEO_INFO_N_COMPONENTS (info), NULL);
|
|
|
|
|
|
gst_caps_set_simple (caps, "interlaced", G_TYPE_BOOLEAN,
|
|
GST_VIDEO_INFO_IS_INTERLACED (info), 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->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;
|
|
}
|
|
|
|
|
|
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:
|
|
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[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_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:
|
|
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[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;
|
|
default:
|
|
if (GST_VIDEO_FORMAT_INFO_IS_COMPLEX (info->finfo))
|
|
break;
|
|
GST_ERROR ("invalid format");
|
|
g_warning ("invalid format");
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* gst_video_format_from_rgb32_masks:
|
|
* @red_mask: red bit mask
|
|
* @green_mask: green bit mask
|
|
* @blue_mask: blue bit mask
|
|
*
|
|
* Converts red, green, blue bit masks into the corresponding
|
|
* #GstVideoFormat.
|
|
*
|
|
* Since: 0.10.16
|
|
*
|
|
* Returns: the #GstVideoFormat corresponding to the bit masks
|
|
*/
|
|
static GstVideoFormat
|
|
gst_video_format_from_rgb32_masks (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;
|
|
}
|
|
if (red_mask == 0x00ff0000 && green_mask == 0x0000ff00 &&
|
|
blue_mask == 0x000000ff) {
|
|
return GST_VIDEO_FORMAT_xRGB;
|
|
}
|
|
if (red_mask == 0x000000ff && green_mask == 0x0000ff00 &&
|
|
blue_mask == 0x00ff0000) {
|
|
return GST_VIDEO_FORMAT_xBGR;
|
|
}
|
|
|
|
return GST_VIDEO_FORMAT_UNKNOWN;
|
|
}
|
|
|
|
static GstVideoFormat
|
|
gst_video_format_from_rgba32_masks (int red_mask, int green_mask,
|
|
int blue_mask, int alpha_mask)
|
|
{
|
|
if (red_mask == 0xff000000 && green_mask == 0x00ff0000 &&
|
|
blue_mask == 0x0000ff00 && alpha_mask == 0x000000ff) {
|
|
return GST_VIDEO_FORMAT_RGBA;
|
|
}
|
|
if (red_mask == 0x0000ff00 && green_mask == 0x00ff0000 &&
|
|
blue_mask == 0xff000000 && alpha_mask == 0x000000ff) {
|
|
return GST_VIDEO_FORMAT_BGRA;
|
|
}
|
|
if (red_mask == 0x00ff0000 && green_mask == 0x0000ff00 &&
|
|
blue_mask == 0x000000ff && alpha_mask == 0xff000000) {
|
|
return GST_VIDEO_FORMAT_ARGB;
|
|
}
|
|
if (red_mask == 0x000000ff && green_mask == 0x0000ff00 &&
|
|
blue_mask == 0x00ff0000 && alpha_mask == 0xff000000) {
|
|
return GST_VIDEO_FORMAT_ABGR;
|
|
}
|
|
|
|
return GST_VIDEO_FORMAT_UNKNOWN;
|
|
}
|
|
|
|
static GstVideoFormat
|
|
gst_video_format_from_rgb24_masks (int red_mask, int green_mask, int blue_mask)
|
|
{
|
|
if (red_mask == 0xff0000 && green_mask == 0x00ff00 && blue_mask == 0x0000ff) {
|
|
return GST_VIDEO_FORMAT_RGB;
|
|
}
|
|
if (red_mask == 0x0000ff && green_mask == 0x00ff00 && blue_mask == 0xff0000) {
|
|
return GST_VIDEO_FORMAT_BGR;
|
|
}
|
|
|
|
return GST_VIDEO_FORMAT_UNKNOWN;
|
|
}
|
|
|
|
static GstVideoFormat
|
|
gst_video_format_from_rgb16_masks (int red_mask, int green_mask, int blue_mask)
|
|
{
|
|
if (red_mask == GST_VIDEO_COMP1_MASK_16_INT
|
|
&& green_mask == GST_VIDEO_COMP2_MASK_16_INT
|
|
&& blue_mask == GST_VIDEO_COMP3_MASK_16_INT) {
|
|
return GST_VIDEO_FORMAT_RGB16;
|
|
}
|
|
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_is_rgb:
|
|
* @format: a #GstVideoFormat
|
|
*
|
|
* Determine whether the video format is an RGB format.
|
|
*
|
|
* Since: 0.10.16
|
|
*
|
|
* Deprecated: Use #GstVideoFormatInfo and #GST_VIDEO_FORMAT_INFO_IS_RGB
|
|
*
|
|
* Returns: TRUE if @format represents RGB video
|
|
*/
|
|
gboolean
|
|
gst_video_format_is_rgb (GstVideoFormat format)
|
|
{
|
|
g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, 0);
|
|
|
|
if (format >= G_N_ELEMENTS (formats))
|
|
return FALSE;
|
|
|
|
return GST_VIDEO_FORMAT_INFO_IS_RGB (&formats[format].info);
|
|
}
|
|
|
|
/**
|
|
* gst_video_format_is_yuv:
|
|
* @format: a #GstVideoFormat
|
|
*
|
|
* Determine whether the video format is a YUV format.
|
|
*
|
|
* Since: 0.10.16
|
|
*
|
|
* Deprecated: Use #GstVideoFormatInfo and #GST_VIDEO_FORMAT_INFO_IS_YUV
|
|
*
|
|
* Returns: TRUE if @format represents YUV video
|
|
*/
|
|
gboolean
|
|
gst_video_format_is_yuv (GstVideoFormat format)
|
|
{
|
|
g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, 0);
|
|
|
|
if (format >= G_N_ELEMENTS (formats))
|
|
return FALSE;
|
|
|
|
return GST_VIDEO_FORMAT_INFO_IS_YUV (&formats[format].info);
|
|
}
|
|
|
|
/**
|
|
* gst_video_format_is_gray:
|
|
* @format: a #GstVideoFormat
|
|
*
|
|
* Determine whether the video format is a grayscale format.
|
|
*
|
|
* Since: 0.10.29
|
|
*
|
|
* Deprecated: Use #GstVideoFormatInfo and #GST_VIDEO_FORMAT_INFO_IS_GRAY
|
|
*
|
|
* Returns: TRUE if @format represents grayscale video
|
|
*/
|
|
gboolean
|
|
gst_video_format_is_gray (GstVideoFormat format)
|
|
{
|
|
g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, 0);
|
|
|
|
if (format >= G_N_ELEMENTS (formats))
|
|
return FALSE;
|
|
|
|
return GST_VIDEO_FORMAT_INFO_IS_GRAY (&formats[format].info);
|
|
}
|
|
|
|
/**
|
|
* gst_video_format_has_alpha:
|
|
* @format: a #GstVideoFormat
|
|
*
|
|
* Returns TRUE or FALSE depending on if the video format provides an
|
|
* alpha channel.
|
|
*
|
|
* Since: 0.10.16
|
|
*
|
|
* Deprecated: Use #GstVideoFormatInfo and #GST_VIDEO_FORMAT_INFO_HAS_ALPHA
|
|
*
|
|
* Returns: TRUE if @format has an alpha channel
|
|
*/
|
|
gboolean
|
|
gst_video_format_has_alpha (GstVideoFormat format)
|
|
{
|
|
g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, 0);
|
|
|
|
if (format >= G_N_ELEMENTS (formats))
|
|
return FALSE;
|
|
|
|
return GST_VIDEO_FORMAT_INFO_HAS_ALPHA (&formats[format].info);
|
|
}
|
|
|
|
/**
|
|
* gst_video_format_get_component_depth:
|
|
* @format: a #GstVideoFormat
|
|
* @component: the video component (e.g. 0 for 'R' in RGB)
|
|
*
|
|
* Returns the number of bits used to encode an individual pixel of
|
|
* a given @component. Typically this is 8, although higher and lower
|
|
* values are possible for some formats.
|
|
*
|
|
* Since: 0.10.33
|
|
*
|
|
* Returns: depth of component
|
|
*/
|
|
int
|
|
gst_video_format_get_component_depth (GstVideoFormat format, int component)
|
|
{
|
|
g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, 0);
|
|
|
|
if (format >= G_N_ELEMENTS (formats))
|
|
return 0;
|
|
|
|
return GST_VIDEO_FORMAT_INFO_DEPTH (&formats[format].info, component);
|
|
}
|
|
|
|
/**
|
|
* gst_video_format_get_row_stride:
|
|
* @format: a #GstVideoFormat
|
|
* @component: the component index
|
|
* @width: the width of video
|
|
*
|
|
* Calculates the row stride (number of bytes from one row of pixels to
|
|
* the next) for the video component with an index of @component. For
|
|
* YUV video, Y, U, and V have component indices of 0, 1, and 2,
|
|
* respectively. For RGB video, R, G, and B have component indicies of
|
|
* 0, 1, and 2, respectively. Alpha channels, if present, have a component
|
|
* index of 3. The @width parameter always represents the width of the
|
|
* video, not the component.
|
|
*
|
|
* Since: 0.10.16
|
|
*
|
|
* Returns: row stride of component @component
|
|
*/
|
|
int
|
|
gst_video_format_get_row_stride (GstVideoFormat format, int component,
|
|
int width)
|
|
{
|
|
g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, 0);
|
|
g_return_val_if_fail (component >= 0 && component <= 3, 0);
|
|
g_return_val_if_fail (width > 0, 0);
|
|
|
|
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_YVYU:
|
|
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:
|
|
case GST_VIDEO_FORMAT_xRGB:
|
|
case GST_VIDEO_FORMAT_xBGR:
|
|
case GST_VIDEO_FORMAT_RGBA:
|
|
case GST_VIDEO_FORMAT_BGRA:
|
|
case GST_VIDEO_FORMAT_ARGB:
|
|
case GST_VIDEO_FORMAT_ABGR:
|
|
case GST_VIDEO_FORMAT_r210:
|
|
return width * 4;
|
|
case GST_VIDEO_FORMAT_RGB16:
|
|
case GST_VIDEO_FORMAT_BGR16:
|
|
case GST_VIDEO_FORMAT_RGB15:
|
|
case GST_VIDEO_FORMAT_BGR15:
|
|
return GST_ROUND_UP_4 (width * 2);
|
|
case GST_VIDEO_FORMAT_RGB:
|
|
case GST_VIDEO_FORMAT_BGR:
|
|
case GST_VIDEO_FORMAT_v308:
|
|
return GST_ROUND_UP_4 (width * 3);
|
|
case GST_VIDEO_FORMAT_Y41B:
|
|
if (component == 0) {
|
|
return GST_ROUND_UP_4 (width);
|
|
} else {
|
|
return GST_ROUND_UP_16 (width) / 4;
|
|
}
|
|
case GST_VIDEO_FORMAT_Y42B:
|
|
if (component == 0) {
|
|
return GST_ROUND_UP_4 (width);
|
|
} else {
|
|
return GST_ROUND_UP_8 (width) / 2;
|
|
}
|
|
case GST_VIDEO_FORMAT_Y444:
|
|
return GST_ROUND_UP_4 (width);
|
|
case GST_VIDEO_FORMAT_v210:
|
|
return ((width + 47) / 48) * 128;
|
|
case GST_VIDEO_FORMAT_v216:
|
|
return GST_ROUND_UP_8 (width * 4);
|
|
case GST_VIDEO_FORMAT_NV12:
|
|
case GST_VIDEO_FORMAT_NV21:
|
|
return GST_ROUND_UP_4 (width);
|
|
case GST_VIDEO_FORMAT_GRAY8:
|
|
case GST_VIDEO_FORMAT_Y800:
|
|
return GST_ROUND_UP_4 (width);
|
|
case GST_VIDEO_FORMAT_GRAY16_BE:
|
|
case GST_VIDEO_FORMAT_GRAY16_LE:
|
|
case GST_VIDEO_FORMAT_Y16:
|
|
return GST_ROUND_UP_4 (width * 2);
|
|
case GST_VIDEO_FORMAT_UYVP:
|
|
return GST_ROUND_UP_4 ((width * 2 * 5 + 3) / 4);
|
|
case GST_VIDEO_FORMAT_A420:
|
|
if (component == 0 || component == 3) {
|
|
return GST_ROUND_UP_4 (width);
|
|
} else {
|
|
return GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2);
|
|
}
|
|
case GST_VIDEO_FORMAT_RGB8_PALETTED:
|
|
return GST_ROUND_UP_4 (width);
|
|
case GST_VIDEO_FORMAT_YUV9:
|
|
case GST_VIDEO_FORMAT_YVU9:
|
|
if (component == 0) {
|
|
return GST_ROUND_UP_4 (width);
|
|
} else {
|
|
return GST_ROUND_UP_4 (GST_ROUND_UP_4 (width) / 4);
|
|
}
|
|
case GST_VIDEO_FORMAT_IYU1:
|
|
return GST_ROUND_UP_4 (GST_ROUND_UP_4 (width) +
|
|
GST_ROUND_UP_4 (width) / 2);
|
|
case GST_VIDEO_FORMAT_ARGB64:
|
|
case GST_VIDEO_FORMAT_AYUV64:
|
|
return width * 8;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gst_video_format_get_pixel_stride:
|
|
* @format: a #GstVideoFormat
|
|
* @component: the component index
|
|
*
|
|
* Calculates the pixel stride (number of bytes from one pixel to the
|
|
* pixel to its immediate left) for the video component with an index
|
|
* of @component. See @gst_video_format_get_row_stride for a description
|
|
* of the component index.
|
|
*
|
|
* Since: 0.10.16
|
|
*
|
|
* Returns: pixel stride of component @component
|
|
*/
|
|
int
|
|
gst_video_format_get_pixel_stride (GstVideoFormat format, int component)
|
|
{
|
|
g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, 0);
|
|
g_return_val_if_fail (component >= 0 && component <= 3, 0);
|
|
|
|
if (format >= G_N_ELEMENTS (formats))
|
|
return 0;
|
|
|
|
return GST_VIDEO_FORMAT_INFO_PSTRIDE (&formats[format].info, component);
|
|
}
|
|
|
|
/**
|
|
* gst_video_format_get_component_width:
|
|
* @format: a #GstVideoFormat
|
|
* @component: the component index
|
|
* @width: the width of video
|
|
*
|
|
* Calculates the width of the component. See
|
|
* @gst_video_format_get_row_stride for a description
|
|
* of the component index.
|
|
*
|
|
* Since: 0.10.16
|
|
*
|
|
* Returns: width of component @component
|
|
*/
|
|
int
|
|
gst_video_format_get_component_width (GstVideoFormat format,
|
|
int component, int width)
|
|
{
|
|
g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, 0);
|
|
g_return_val_if_fail (component >= 0 && component <= 3, 0);
|
|
g_return_val_if_fail (width > 0, 0);
|
|
|
|
switch (format) {
|
|
case GST_VIDEO_FORMAT_I420:
|
|
case GST_VIDEO_FORMAT_YV12:
|
|
case GST_VIDEO_FORMAT_YUY2:
|
|
case GST_VIDEO_FORMAT_YVYU:
|
|
case GST_VIDEO_FORMAT_UYVY:
|
|
case GST_VIDEO_FORMAT_Y42B:
|
|
case GST_VIDEO_FORMAT_v210:
|
|
case GST_VIDEO_FORMAT_v216:
|
|
case GST_VIDEO_FORMAT_NV12:
|
|
case GST_VIDEO_FORMAT_NV21:
|
|
case GST_VIDEO_FORMAT_UYVP:
|
|
if (component == 0) {
|
|
return width;
|
|
} else {
|
|
return GST_ROUND_UP_2 (width) / 2;
|
|
}
|
|
case GST_VIDEO_FORMAT_Y41B:
|
|
case GST_VIDEO_FORMAT_YUV9:
|
|
case GST_VIDEO_FORMAT_YVU9:
|
|
case GST_VIDEO_FORMAT_IYU1:
|
|
if (component == 0) {
|
|
return width;
|
|
} else {
|
|
return GST_ROUND_UP_4 (width) / 4;
|
|
}
|
|
case GST_VIDEO_FORMAT_AYUV:
|
|
case GST_VIDEO_FORMAT_RGBx:
|
|
case GST_VIDEO_FORMAT_BGRx:
|
|
case GST_VIDEO_FORMAT_xRGB:
|
|
case GST_VIDEO_FORMAT_xBGR:
|
|
case GST_VIDEO_FORMAT_RGBA:
|
|
case GST_VIDEO_FORMAT_BGRA:
|
|
case GST_VIDEO_FORMAT_ARGB:
|
|
case GST_VIDEO_FORMAT_ABGR:
|
|
case GST_VIDEO_FORMAT_RGB:
|
|
case GST_VIDEO_FORMAT_BGR:
|
|
case GST_VIDEO_FORMAT_RGB16:
|
|
case GST_VIDEO_FORMAT_BGR16:
|
|
case GST_VIDEO_FORMAT_RGB15:
|
|
case GST_VIDEO_FORMAT_BGR15:
|
|
case GST_VIDEO_FORMAT_Y444:
|
|
case GST_VIDEO_FORMAT_v308:
|
|
case GST_VIDEO_FORMAT_GRAY8:
|
|
case GST_VIDEO_FORMAT_GRAY16_BE:
|
|
case GST_VIDEO_FORMAT_GRAY16_LE:
|
|
case GST_VIDEO_FORMAT_Y800:
|
|
case GST_VIDEO_FORMAT_Y16:
|
|
case GST_VIDEO_FORMAT_RGB8_PALETTED:
|
|
case GST_VIDEO_FORMAT_ARGB64:
|
|
case GST_VIDEO_FORMAT_AYUV64:
|
|
case GST_VIDEO_FORMAT_r210:
|
|
return width;
|
|
case GST_VIDEO_FORMAT_A420:
|
|
if (component == 0 || component == 3) {
|
|
return width;
|
|
} else {
|
|
return GST_ROUND_UP_2 (width) / 2;
|
|
}
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gst_video_format_get_component_height:
|
|
* @format: a #GstVideoFormat
|
|
* @component: the component index
|
|
* @height: the height of video
|
|
*
|
|
* Calculates the height of the component. See
|
|
* @gst_video_format_get_row_stride for a description
|
|
* of the component index.
|
|
*
|
|
* Since: 0.10.16
|
|
*
|
|
* Returns: height of component @component
|
|
*/
|
|
int
|
|
gst_video_format_get_component_height (GstVideoFormat format,
|
|
int component, int height)
|
|
{
|
|
g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, 0);
|
|
g_return_val_if_fail (component >= 0 && component <= 3, 0);
|
|
g_return_val_if_fail (height > 0, 0);
|
|
|
|
switch (format) {
|
|
case GST_VIDEO_FORMAT_I420:
|
|
case GST_VIDEO_FORMAT_YV12:
|
|
case GST_VIDEO_FORMAT_NV12:
|
|
case GST_VIDEO_FORMAT_NV21:
|
|
if (component == 0) {
|
|
return height;
|
|
} else {
|
|
return GST_ROUND_UP_2 (height) / 2;
|
|
}
|
|
case GST_VIDEO_FORMAT_Y41B:
|
|
case GST_VIDEO_FORMAT_Y42B:
|
|
case GST_VIDEO_FORMAT_YUY2:
|
|
case GST_VIDEO_FORMAT_YVYU:
|
|
case GST_VIDEO_FORMAT_UYVY:
|
|
case GST_VIDEO_FORMAT_AYUV:
|
|
case GST_VIDEO_FORMAT_RGBx:
|
|
case GST_VIDEO_FORMAT_BGRx:
|
|
case GST_VIDEO_FORMAT_xRGB:
|
|
case GST_VIDEO_FORMAT_xBGR:
|
|
case GST_VIDEO_FORMAT_RGBA:
|
|
case GST_VIDEO_FORMAT_BGRA:
|
|
case GST_VIDEO_FORMAT_ARGB:
|
|
case GST_VIDEO_FORMAT_ABGR:
|
|
case GST_VIDEO_FORMAT_RGB:
|
|
case GST_VIDEO_FORMAT_BGR:
|
|
case GST_VIDEO_FORMAT_RGB16:
|
|
case GST_VIDEO_FORMAT_BGR16:
|
|
case GST_VIDEO_FORMAT_RGB15:
|
|
case GST_VIDEO_FORMAT_BGR15:
|
|
case GST_VIDEO_FORMAT_Y444:
|
|
case GST_VIDEO_FORMAT_v210:
|
|
case GST_VIDEO_FORMAT_v216:
|
|
case GST_VIDEO_FORMAT_v308:
|
|
case GST_VIDEO_FORMAT_GRAY8:
|
|
case GST_VIDEO_FORMAT_GRAY16_BE:
|
|
case GST_VIDEO_FORMAT_GRAY16_LE:
|
|
case GST_VIDEO_FORMAT_Y800:
|
|
case GST_VIDEO_FORMAT_Y16:
|
|
case GST_VIDEO_FORMAT_UYVP:
|
|
case GST_VIDEO_FORMAT_RGB8_PALETTED:
|
|
case GST_VIDEO_FORMAT_IYU1:
|
|
case GST_VIDEO_FORMAT_ARGB64:
|
|
case GST_VIDEO_FORMAT_AYUV64:
|
|
case GST_VIDEO_FORMAT_r210:
|
|
return height;
|
|
case GST_VIDEO_FORMAT_A420:
|
|
if (component == 0 || component == 3) {
|
|
return height;
|
|
} else {
|
|
return GST_ROUND_UP_2 (height) / 2;
|
|
}
|
|
case GST_VIDEO_FORMAT_YUV9:
|
|
case GST_VIDEO_FORMAT_YVU9:
|
|
if (component == 0) {
|
|
return height;
|
|
} else {
|
|
return GST_ROUND_UP_4 (height) / 4;
|
|
}
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gst_video_format_get_component_offset:
|
|
* @format: a #GstVideoFormat
|
|
* @component: the component index
|
|
* @width: the width of video
|
|
* @height: the height of video
|
|
*
|
|
* Calculates the offset (in bytes) of the first pixel of the component
|
|
* with index @component. For packed formats, this will typically be a
|
|
* small integer (0, 1, 2, 3). For planar formats, this will be a
|
|
* (relatively) large offset to the beginning of the second or third
|
|
* component planes. See @gst_video_format_get_row_stride for a description
|
|
* of the component index.
|
|
*
|
|
* Since: 0.10.16
|
|
*
|
|
* Returns: offset of component @component
|
|
*/
|
|
int
|
|
gst_video_format_get_component_offset (GstVideoFormat format,
|
|
int component, int width, int height)
|
|
{
|
|
g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, 0);
|
|
g_return_val_if_fail (component >= 0 && component <= 3, 0);
|
|
g_return_val_if_fail ((!gst_video_format_is_yuv (format)) || (width > 0
|
|
&& height > 0), 0);
|
|
|
|
switch (format) {
|
|
case GST_VIDEO_FORMAT_I420:
|
|
if (component == 0)
|
|
return 0;
|
|
if (component == 1)
|
|
return GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height);
|
|
if (component == 2) {
|
|
return GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height) +
|
|
GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2) *
|
|
(GST_ROUND_UP_2 (height) / 2);
|
|
}
|
|
break;
|
|
case GST_VIDEO_FORMAT_YV12: /* same as I420, but components 1+2 swapped */
|
|
if (component == 0)
|
|
return 0;
|
|
if (component == 2)
|
|
return GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height);
|
|
if (component == 1) {
|
|
return GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height) +
|
|
GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2) *
|
|
(GST_ROUND_UP_2 (height) / 2);
|
|
}
|
|
break;
|
|
case GST_VIDEO_FORMAT_YUY2:
|
|
if (component == 0)
|
|
return 0;
|
|
if (component == 1)
|
|
return 1;
|
|
if (component == 2)
|
|
return 3;
|
|
break;
|
|
case GST_VIDEO_FORMAT_YVYU:
|
|
if (component == 0)
|
|
return 0;
|
|
if (component == 1)
|
|
return 3;
|
|
if (component == 2)
|
|
return 1;
|
|
break;
|
|
case GST_VIDEO_FORMAT_UYVY:
|
|
if (component == 0)
|
|
return 1;
|
|
if (component == 1)
|
|
return 0;
|
|
if (component == 2)
|
|
return 2;
|
|
break;
|
|
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;
|
|
break;
|
|
case GST_VIDEO_FORMAT_RGBx:
|
|
case GST_VIDEO_FORMAT_RGBA:
|
|
if (component == 0)
|
|
return 0;
|
|
if (component == 1)
|
|
return 1;
|
|
if (component == 2)
|
|
return 2;
|
|
if (component == 3)
|
|
return 3;
|
|
break;
|
|
case GST_VIDEO_FORMAT_BGRx:
|
|
case GST_VIDEO_FORMAT_BGRA:
|
|
if (component == 0)
|
|
return 2;
|
|
if (component == 1)
|
|
return 1;
|
|
if (component == 2)
|
|
return 0;
|
|
if (component == 3)
|
|
return 3;
|
|
break;
|
|
case GST_VIDEO_FORMAT_xRGB:
|
|
case GST_VIDEO_FORMAT_ARGB:
|
|
if (component == 0)
|
|
return 1;
|
|
if (component == 1)
|
|
return 2;
|
|
if (component == 2)
|
|
return 3;
|
|
if (component == 3)
|
|
return 0;
|
|
break;
|
|
case GST_VIDEO_FORMAT_xBGR:
|
|
case GST_VIDEO_FORMAT_ABGR:
|
|
if (component == 0)
|
|
return 3;
|
|
if (component == 1)
|
|
return 2;
|
|
if (component == 2)
|
|
return 1;
|
|
if (component == 3)
|
|
return 0;
|
|
break;
|
|
case GST_VIDEO_FORMAT_RGB:
|
|
case GST_VIDEO_FORMAT_v308:
|
|
if (component == 0)
|
|
return 0;
|
|
if (component == 1)
|
|
return 1;
|
|
if (component == 2)
|
|
return 2;
|
|
break;
|
|
case GST_VIDEO_FORMAT_BGR:
|
|
if (component == 0)
|
|
return 2;
|
|
if (component == 1)
|
|
return 1;
|
|
if (component == 2)
|
|
return 0;
|
|
break;
|
|
case GST_VIDEO_FORMAT_Y41B:
|
|
if (component == 0)
|
|
return 0;
|
|
if (component == 1)
|
|
return GST_ROUND_UP_4 (width) * height;
|
|
if (component == 2)
|
|
return (GST_ROUND_UP_4 (width) +
|
|
(GST_ROUND_UP_16 (width) / 4)) * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_Y42B:
|
|
if (component == 0)
|
|
return 0;
|
|
if (component == 1)
|
|
return GST_ROUND_UP_4 (width) * height;
|
|
if (component == 2)
|
|
return (GST_ROUND_UP_4 (width) + (GST_ROUND_UP_8 (width) / 2)) * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_Y444:
|
|
return GST_ROUND_UP_4 (width) * height * component;
|
|
case GST_VIDEO_FORMAT_v210:
|
|
case GST_VIDEO_FORMAT_r210:
|
|
/* v210 is bit-packed, so this doesn't make sense */
|
|
return 0;
|
|
case GST_VIDEO_FORMAT_v216:
|
|
if (component == 0)
|
|
return 0;
|
|
if (component == 1)
|
|
return 2;
|
|
if (component == 2)
|
|
return 6;
|
|
break;
|
|
case GST_VIDEO_FORMAT_NV12:
|
|
if (component == 0)
|
|
return 0;
|
|
if (component == 1)
|
|
return GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height);
|
|
if (component == 2)
|
|
return GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height) + 1;
|
|
break;
|
|
case GST_VIDEO_FORMAT_NV21:
|
|
if (component == 0)
|
|
return 0;
|
|
if (component == 1)
|
|
return GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height) + 1;
|
|
if (component == 2)
|
|
return GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height);
|
|
break;
|
|
case GST_VIDEO_FORMAT_GRAY8:
|
|
case GST_VIDEO_FORMAT_GRAY16_BE:
|
|
case GST_VIDEO_FORMAT_GRAY16_LE:
|
|
case GST_VIDEO_FORMAT_Y800:
|
|
case GST_VIDEO_FORMAT_Y16:
|
|
return 0;
|
|
case GST_VIDEO_FORMAT_UYVP:
|
|
/* UYVP is bit-packed, so this doesn't make sense */
|
|
return 0;
|
|
case GST_VIDEO_FORMAT_A420:
|
|
if (component == 0)
|
|
return 0;
|
|
if (component == 1)
|
|
return GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height);
|
|
if (component == 2) {
|
|
return GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height) +
|
|
GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2) *
|
|
(GST_ROUND_UP_2 (height) / 2);
|
|
}
|
|
if (component == 3) {
|
|
return GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height) +
|
|
2 * GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2) *
|
|
(GST_ROUND_UP_2 (height) / 2);
|
|
}
|
|
break;
|
|
case GST_VIDEO_FORMAT_RGB8_PALETTED:
|
|
return 0;
|
|
case GST_VIDEO_FORMAT_YUV9:
|
|
if (component == 0)
|
|
return 0;
|
|
if (component == 1)
|
|
return GST_ROUND_UP_4 (width) * height;
|
|
if (component == 2) {
|
|
return GST_ROUND_UP_4 (width) * height +
|
|
GST_ROUND_UP_4 (GST_ROUND_UP_4 (width) / 4) *
|
|
(GST_ROUND_UP_4 (height) / 4);
|
|
}
|
|
break;
|
|
case GST_VIDEO_FORMAT_YVU9:
|
|
if (component == 0)
|
|
return 0;
|
|
if (component == 1) {
|
|
return GST_ROUND_UP_4 (width) * height +
|
|
GST_ROUND_UP_4 (GST_ROUND_UP_4 (width) / 4) *
|
|
(GST_ROUND_UP_4 (height) / 4);
|
|
}
|
|
if (component == 2)
|
|
return GST_ROUND_UP_4 (width) * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_IYU1:
|
|
if (component == 0)
|
|
return 1;
|
|
if (component == 1)
|
|
return 0;
|
|
if (component == 2)
|
|
return 4;
|
|
break;
|
|
case GST_VIDEO_FORMAT_ARGB64:
|
|
case GST_VIDEO_FORMAT_AYUV64:
|
|
if (component == 0)
|
|
return 2;
|
|
if (component == 1)
|
|
return 4;
|
|
if (component == 2)
|
|
return 6;
|
|
if (component == 3)
|
|
return 0;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
GST_WARNING ("unhandled format %s or component %d",
|
|
gst_video_format_to_string (format), component);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* gst_video_format_get_size:
|
|
* @format: a #GstVideoFormat
|
|
* @width: the width of video
|
|
* @height: the height of video
|
|
*
|
|
* Calculates the total number of bytes in the raw video format. This
|
|
* number should be used when allocating a buffer for raw video.
|
|
*
|
|
* Since: 0.10.16
|
|
*
|
|
* Returns: size (in bytes) of raw video format
|
|
*/
|
|
int
|
|
gst_video_format_get_size (GstVideoFormat format, int width, int height)
|
|
{
|
|
int size;
|
|
|
|
g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, 0);
|
|
g_return_val_if_fail (width > 0 && height > 0, 0);
|
|
|
|
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_IYU1:
|
|
return GST_ROUND_UP_4 (GST_ROUND_UP_4 (width) +
|
|
GST_ROUND_UP_4 (width) / 2) * height;
|
|
case GST_VIDEO_FORMAT_YUY2:
|
|
case GST_VIDEO_FORMAT_YVYU:
|
|
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:
|
|
case GST_VIDEO_FORMAT_xRGB:
|
|
case GST_VIDEO_FORMAT_xBGR:
|
|
case GST_VIDEO_FORMAT_RGBA:
|
|
case GST_VIDEO_FORMAT_BGRA:
|
|
case GST_VIDEO_FORMAT_ARGB:
|
|
case GST_VIDEO_FORMAT_ABGR:
|
|
case GST_VIDEO_FORMAT_r210:
|
|
return width * 4 * height;
|
|
case GST_VIDEO_FORMAT_RGB16:
|
|
case GST_VIDEO_FORMAT_BGR16:
|
|
case GST_VIDEO_FORMAT_RGB15:
|
|
case GST_VIDEO_FORMAT_BGR15:
|
|
return GST_ROUND_UP_4 (width * 2) * height;
|
|
case GST_VIDEO_FORMAT_RGB:
|
|
case GST_VIDEO_FORMAT_BGR:
|
|
case GST_VIDEO_FORMAT_v308:
|
|
return GST_ROUND_UP_4 (width * 3) * height;
|
|
case GST_VIDEO_FORMAT_Y41B:
|
|
/* simplification of ROUNDUP4(w)*h + 2*((ROUNDUP16(w)/4)*h */
|
|
return (GST_ROUND_UP_4 (width) + (GST_ROUND_UP_16 (width) / 2)) * height;
|
|
case GST_VIDEO_FORMAT_Y42B:
|
|
/* simplification of ROUNDUP4(w)*h + 2*(ROUNDUP8(w)/2)*h */
|
|
return (GST_ROUND_UP_4 (width) + GST_ROUND_UP_8 (width)) * height;
|
|
case GST_VIDEO_FORMAT_Y444:
|
|
return GST_ROUND_UP_4 (width) * height * 3;
|
|
case GST_VIDEO_FORMAT_v210:
|
|
return ((width + 47) / 48) * 128 * height;
|
|
case GST_VIDEO_FORMAT_v216:
|
|
return GST_ROUND_UP_8 (width * 4) * height;
|
|
case GST_VIDEO_FORMAT_NV12:
|
|
case GST_VIDEO_FORMAT_NV21:
|
|
return GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height) * 3 / 2;
|
|
case GST_VIDEO_FORMAT_GRAY8:
|
|
case GST_VIDEO_FORMAT_Y800:
|
|
case GST_VIDEO_FORMAT_RGB8_PALETTED:
|
|
return GST_ROUND_UP_4 (width) * height;
|
|
case GST_VIDEO_FORMAT_GRAY16_BE:
|
|
case GST_VIDEO_FORMAT_GRAY16_LE:
|
|
case GST_VIDEO_FORMAT_Y16:
|
|
return GST_ROUND_UP_4 (width * 2) * height;
|
|
case GST_VIDEO_FORMAT_UYVP:
|
|
return GST_ROUND_UP_4 ((width * 2 * 5 + 3) / 4) * height;
|
|
case GST_VIDEO_FORMAT_A420:
|
|
size = 2 * 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_YUV9:
|
|
case GST_VIDEO_FORMAT_YVU9:
|
|
size = GST_ROUND_UP_4 (width) * height;
|
|
size += GST_ROUND_UP_4 (GST_ROUND_UP_4 (width) / 4) *
|
|
(GST_ROUND_UP_4 (height) / 4) * 2;
|
|
return size;
|
|
case GST_VIDEO_FORMAT_ARGB64:
|
|
case GST_VIDEO_FORMAT_AYUV64:
|
|
return width * 8 * height;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gst_video_get_size_from_caps:
|
|
* @caps: a pointer to #GstCaps
|
|
* @size: a pointer to a gint that will be assigned the size (in bytes) of a video frame with the given caps
|
|
*
|
|
* Calculates the total number of bytes in the raw video format for the given
|
|
* caps. This number should be used when allocating a buffer for raw video.
|
|
*
|
|
* Since: 0.10.36
|
|
*
|
|
* Returns: %TRUE if the size could be calculated from the caps
|
|
*/
|
|
gboolean
|
|
gst_video_get_size_from_caps (const GstCaps * caps, gint * size)
|
|
{
|
|
GstVideoFormat format = 0;
|
|
gint width = 0, height = 0;
|
|
|
|
g_return_val_if_fail (gst_caps_is_fixed (caps), FALSE);
|
|
g_return_val_if_fail (size != NULL, FALSE);
|
|
|
|
if (gst_video_format_parse_caps (caps, &format, &width, &height) == FALSE) {
|
|
GST_WARNING ("Could not parse caps: %" GST_PTR_FORMAT, caps);
|
|
return FALSE;
|
|
}
|
|
|
|
*size = gst_video_format_get_size (format, width, height);
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_video_format_convert:
|
|
* @format: a #GstVideoFormat
|
|
* @width: the width of video
|
|
* @height: the height of video
|
|
* @fps_n: frame rate numerator
|
|
* @fps_d: frame rate denominator
|
|
* @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 to handle pad queries of the type GST_QUERY_CONVERT.
|
|
*
|
|
* Since: 0.10.16
|
|
*
|
|
* Returns: TRUE if the conversion was successful.
|
|
*/
|
|
gboolean
|
|
gst_video_format_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;
|
|
|
|
g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, 0);
|
|
g_return_val_if_fail (width > 0 && height > 0, 0);
|
|
|
|
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;
|
|
}
|
|
|
|
#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 = gst_buffer_ref (gst_value_get_buffer (p_v));
|
|
|
|
return p;
|
|
}
|
|
|
|
#define GST_VIDEO_EVENT_FORCE_KEY_UNIT_NAME "GstForceKeyUnit"
|
|
|
|
/**
|
|
* gst_video_event_new_downstream_force_key_unit:
|
|
* @timestamp: the timestamp of the buffer that starts a new key unit
|
|
* @stream_time: the stream_time of the buffer that starts a new key unit
|
|
* @running_time: the running_time of the buffer that starts a new key unit
|
|
* @all_headers: %TRUE to produce headers when starting a new key unit
|
|
* @count: integer that can be used to number key units
|
|
*
|
|
* Creates a new downstream force key unit event. A downstream force key unit
|
|
* event can be sent down the pipeline to request downstream elements to produce
|
|
* a key unit. A downstream force key unit event must also be sent when handling
|
|
* an upstream force key unit event to notify downstream that the latter has been
|
|
* handled.
|
|
*
|
|
* To parse an event created by gst_video_event_new_downstream_force_key_unit() use
|
|
* gst_video_event_parse_downstream_force_key_unit().
|
|
*
|
|
* Returns: The new GstEvent
|
|
* Since: 0.10.36
|
|
*/
|
|
GstEvent *
|
|
gst_video_event_new_downstream_force_key_unit (GstClockTime timestamp,
|
|
GstClockTime stream_time, GstClockTime running_time, gboolean all_headers,
|
|
guint count)
|
|
{
|
|
GstEvent *force_key_unit_event;
|
|
GstStructure *s;
|
|
|
|
s = gst_structure_new (GST_VIDEO_EVENT_FORCE_KEY_UNIT_NAME,
|
|
"timestamp", G_TYPE_UINT64, timestamp,
|
|
"stream-time", G_TYPE_UINT64, stream_time,
|
|
"running-time", G_TYPE_UINT64, running_time,
|
|
"all-headers", G_TYPE_BOOLEAN, all_headers,
|
|
"count", G_TYPE_UINT, count, NULL);
|
|
force_key_unit_event = gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, s);
|
|
|
|
return force_key_unit_event;
|
|
}
|
|
|
|
/**
|
|
* gst_video_event_new_upstream_force_key_unit:
|
|
* @running_time: the running_time at which a new key unit should be produced
|
|
* @all_headers: %TRUE to produce headers when starting a new key unit
|
|
* @count: integer that can be used to number key units
|
|
*
|
|
* Creates a new upstream force key unit event. An upstream force key unit event
|
|
* can be sent to request upstream elements to produce a key unit.
|
|
*
|
|
* @running_time can be set to request a new key unit at a specific
|
|
* running_time. If set to GST_CLOCK_TIME_NONE, upstream elements will produce a
|
|
* new key unit as soon as possible.
|
|
*
|
|
* To parse an event created by gst_video_event_new_downstream_force_key_unit() use
|
|
* gst_video_event_parse_downstream_force_key_unit().
|
|
*
|
|
* Returns: The new GstEvent
|
|
* Since: 0.10.36
|
|
*/
|
|
GstEvent *
|
|
gst_video_event_new_upstream_force_key_unit (GstClockTime running_time,
|
|
gboolean all_headers, guint count)
|
|
{
|
|
GstEvent *force_key_unit_event;
|
|
GstStructure *s;
|
|
|
|
s = gst_structure_new (GST_VIDEO_EVENT_FORCE_KEY_UNIT_NAME,
|
|
"running-time", GST_TYPE_CLOCK_TIME, running_time,
|
|
"all-headers", G_TYPE_BOOLEAN, all_headers,
|
|
"count", G_TYPE_UINT, count, NULL);
|
|
force_key_unit_event = gst_event_new_custom (GST_EVENT_CUSTOM_UPSTREAM, s);
|
|
|
|
return force_key_unit_event;
|
|
}
|
|
|
|
/**
|
|
* gst_video_event_is_force_key_unit:
|
|
* @event: A #GstEvent to check
|
|
*
|
|
* Checks if an event is a force key unit event. Returns true for both upstream
|
|
* and downstream force key unit events.
|
|
*
|
|
* Returns: %TRUE if the event is a valid force key unit event
|
|
* Since: 0.10.36
|
|
*/
|
|
gboolean
|
|
gst_video_event_is_force_key_unit (GstEvent * event)
|
|
{
|
|
const GstStructure *s;
|
|
|
|
g_return_val_if_fail (event != NULL, FALSE);
|
|
|
|
if (GST_EVENT_TYPE (event) != GST_EVENT_CUSTOM_DOWNSTREAM &&
|
|
GST_EVENT_TYPE (event) != GST_EVENT_CUSTOM_UPSTREAM)
|
|
return FALSE; /* Not a force key unit event */
|
|
|
|
s = gst_event_get_structure (event);
|
|
if (s == NULL
|
|
|| !gst_structure_has_name (s, GST_VIDEO_EVENT_FORCE_KEY_UNIT_NAME))
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_video_event_parse_downstream_force_key_unit:
|
|
* @event: A #GstEvent to parse
|
|
* @timestamp: (out): A pointer to the timestamp in the event
|
|
* @stream_time: (out): A pointer to the stream-time in the event
|
|
* @running_time: (out): A pointer to the running-time in the event
|
|
* @all_headers: (out): A pointer to the all_headers flag in the event
|
|
* @count: (out): A pointer to the count field of the event
|
|
*
|
|
* Get timestamp, stream-time, running-time, all-headers and count in the force
|
|
* key unit event. See gst_video_event_new_downstream_force_key_unit() for a
|
|
* full description of the downstream force key unit event.
|
|
*
|
|
* Returns: %TRUE if the event is a valid downstream force key unit event.
|
|
* Since: 0.10.36
|
|
*/
|
|
gboolean
|
|
gst_video_event_parse_downstream_force_key_unit (GstEvent * event,
|
|
GstClockTime * timestamp, GstClockTime * stream_time,
|
|
GstClockTime * running_time, gboolean * all_headers, guint * count)
|
|
{
|
|
const GstStructure *s;
|
|
GstClockTime ev_timestamp, ev_stream_time, ev_running_time;
|
|
gboolean ev_all_headers;
|
|
guint ev_count;
|
|
|
|
g_return_val_if_fail (event != NULL, FALSE);
|
|
|
|
if (GST_EVENT_TYPE (event) != GST_EVENT_CUSTOM_DOWNSTREAM)
|
|
return FALSE; /* Not a force key unit event */
|
|
|
|
s = gst_event_get_structure (event);
|
|
if (s == NULL
|
|
|| !gst_structure_has_name (s, GST_VIDEO_EVENT_FORCE_KEY_UNIT_NAME))
|
|
return FALSE;
|
|
|
|
if (!gst_structure_get_clock_time (s, "timestamp", &ev_timestamp))
|
|
return FALSE; /* Not a force key unit event */
|
|
if (!gst_structure_get_clock_time (s, "stream-time", &ev_stream_time))
|
|
return FALSE; /* Not a force key unit event */
|
|
if (!gst_structure_get_clock_time (s, "running-time", &ev_running_time))
|
|
return FALSE; /* Not a force key unit event */
|
|
if (!gst_structure_get_boolean (s, "all-headers", &ev_all_headers))
|
|
return FALSE; /* Not a force key unit event */
|
|
if (!gst_structure_get_uint (s, "count", &ev_count))
|
|
return FALSE; /* Not a force key unit event */
|
|
|
|
if (timestamp)
|
|
*timestamp = ev_timestamp;
|
|
|
|
if (stream_time)
|
|
*stream_time = ev_stream_time;
|
|
|
|
if (running_time)
|
|
*running_time = ev_running_time;
|
|
|
|
if (all_headers)
|
|
*all_headers = ev_all_headers;
|
|
|
|
if (count)
|
|
*count = ev_count;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_video_event_parse_upstream_force_key_unit:
|
|
* @event: A #GstEvent to parse
|
|
* @running_time: (out): A pointer to the running_time in the event
|
|
* @all_headers: (out): A pointer to the all_headers flag in the event
|
|
* @count: (out): A pointer to the count field in the event
|
|
*
|
|
* Get running-time, all-headers and count in the force key unit event. See
|
|
* gst_video_event_new_upstream_force_key_unit() for a full description of the
|
|
* upstream force key unit event.
|
|
*
|
|
* Create an upstream force key unit event using gst_video_event_new_upstream_force_key_unit()
|
|
*
|
|
* Returns: %TRUE if the event is a valid upstream force-key-unit event. %FALSE if not
|
|
* Since: 0.10.36
|
|
*/
|
|
gboolean
|
|
gst_video_event_parse_upstream_force_key_unit (GstEvent * event,
|
|
GstClockTime * running_time, gboolean * all_headers, guint * count)
|
|
{
|
|
const GstStructure *s;
|
|
GstClockTime ev_running_time;
|
|
gboolean ev_all_headers;
|
|
guint ev_count;
|
|
|
|
g_return_val_if_fail (event != NULL, FALSE);
|
|
|
|
if (GST_EVENT_TYPE (event) != GST_EVENT_CUSTOM_UPSTREAM)
|
|
return FALSE; /* Not a force key unit event */
|
|
|
|
s = gst_event_get_structure (event);
|
|
if (s == NULL
|
|
|| !gst_structure_has_name (s, GST_VIDEO_EVENT_FORCE_KEY_UNIT_NAME))
|
|
return FALSE;
|
|
|
|
if (!gst_structure_get_clock_time (s, "running-time", &ev_running_time))
|
|
return FALSE; /* Not a force key unit event */
|
|
if (!gst_structure_get_boolean (s, "all-headers", &ev_all_headers))
|
|
return FALSE; /* Not a force key unit event */
|
|
if (!gst_structure_get_uint (s, "count", &ev_count))
|
|
return FALSE; /* Not a force key unit event */
|
|
|
|
if (running_time)
|
|
*running_time = ev_running_time;
|
|
|
|
if (all_headers)
|
|
*all_headers = ev_all_headers;
|
|
|
|
if (count)
|
|
*count = ev_count;
|
|
|
|
return TRUE;
|
|
}
|