sys/glsink/gstvideo-common.*: Pull together some common raw video functions into one location.

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

1 files changed, 560 insertions, 0 deletions

diff --git a/sys/glsink/gstvideo-common.c b/sys/glsink/gstvideo-common.c
new file mode 100644
index 00000000..5907b3c2
--- /dev/null
+++ b/sys/glsink/gstvideo-common.c
@@ -0,0 +1,560 @@
+/* gstvideo-common.c
+ * Copyright (C) 2007 David A. Schleef <ds@schleef.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gstvideo-common.h>
+
+
+gboolean
+gst_video_parse_caps (GstCaps * caps, GstVideoFormat * format, int *width,
+    int *height)
+{
+  GstStructure *structure;
+  gboolean ok = TRUE;
+
+  if (!gst_caps_is_fixed (caps))
+    return FALSE;
+
+  structure = gst_caps_get_structure (caps, 0);
+
+  if (format) {
+    if (gst_structure_has_name (structure, "video/x-raw-yuv")) {
+      guint32 fourcc;
+
+      ok &= gst_structure_get_fourcc (structure, "format", &fourcc);
+
+      *format = gst_video_fourcc_to_format (fourcc);
+      if (*format == GST_VIDEO_FORMAT_UNKNOWN) {
+        ok = FALSE;
+      }
+    } else if (gst_structure_has_name (structure, "video/x-raw-rgb")) {
+      int depth;
+      int bpp;
+      int endianness;
+      int red_mask;
+      int green_mask;
+      int blue_mask;
+
+      ok &= gst_structure_get_int (structure, "depth", &depth);
+      ok &= gst_structure_get_int (structure, "bpp", &bpp);
+      ok &= gst_structure_get_int (structure, "endianness", &endianness);
+      ok &= gst_structure_get_int (structure, "red_mask", &red_mask);
+      ok &= gst_structure_get_int (structure, "green_mask", &green_mask);
+      ok &= gst_structure_get_int (structure, "blue_mask", &blue_mask);
+
+      if (depth != 24 || bpp != 32 || endianness != G_BIG_ENDIAN) {
+        ok = FALSE;
+      } else {
+        *format = gst_video_rgb32_masks_to_format (red_mask, green_mask,
+            blue_mask);
+        if (*format == GST_VIDEO_FORMAT_UNKNOWN) {
+          ok = FALSE;
+        }
+      }
+    } else {
+      ok = FALSE;
+    }
+  }
+
+  if (width) {
+    ok &= gst_structure_get_int (structure, "width", width);
+  }
+
+  if (height) {
+    ok &= gst_structure_get_int (structure, "height", height);
+  }
+
+  return ok;
+}
+
+gboolean
+gst_video_parse_caps_framerate (GstCaps * caps, int *fps_n, int *fps_d)
+{
+  GstStructure *structure;
+
+  if (!gst_caps_is_fixed (caps))
+    return FALSE;
+
+  structure = gst_caps_get_structure (caps, 0);
+
+  return gst_structure_get_fraction (structure, "framerate", fps_n, fps_d);
+}
+
+gboolean
+gst_video_parse_caps_pixel_aspect_ratio (GstCaps * caps, int *par_n, int *par_d)
+{
+  GstStructure *structure;
+
+  if (!gst_caps_is_fixed (caps))
+    return FALSE;
+
+  structure = gst_caps_get_structure (caps, 0);
+
+  if (!gst_structure_get_fraction (structure, "pixel-aspect-ratio",
+          par_n, par_d)) {
+    *par_n = 1;
+    *par_d = 1;
+  }
+  return TRUE;
+}
+
+GstCaps *
+gst_video_create_caps (GstVideoFormat format, int width, int height,
+    int framerate_n, int framerate_d, int par_n, int par_d)
+{
+  if (gst_video_format_is_yuv (format)) {
+    return gst_caps_new_simple ("video/x-raw-yuv",
+        "format", GST_TYPE_FOURCC, gst_video_format_to_fourcc (format),
+        "width", G_TYPE_INT, width,
+        "height", G_TYPE_INT, height,
+        "framerate", GST_TYPE_FRACTION, framerate_n, framerate_d,
+        "pixel-aspect-ratio", GST_TYPE_FRACTION, par_n, par_d, NULL);
+  }
+  if (gst_video_format_is_rgb (format)) {
+    int red_mask;
+    int blue_mask;
+    int green_mask;
+
+    red_mask =
+        0xff000000U >> gst_video_format_get_component_offset (format, 0, width,
+        height);
+    green_mask =
+        0xff000000U >> gst_video_format_get_component_offset (format, 1, width,
+        height);
+    blue_mask =
+        0xff000000U >> gst_video_format_get_component_offset (format, 2, width,
+        height);
+
+    return gst_caps_new_simple ("video/x-raw-rgb",
+        "bpp", G_TYPE_INT, 32,
+        "depth", G_TYPE_INT, 24,
+        "endianness", G_TYPE_INT, G_BIG_ENDIAN,
+        "red_mask", G_TYPE_INT, red_mask,
+        "green_mask", G_TYPE_INT, green_mask,
+        "blue_mask", G_TYPE_INT, blue_mask,
+        "width", G_TYPE_INT, width,
+        "height", G_TYPE_INT, height,
+        "framerate", GST_TYPE_FRACTION, framerate_n, framerate_d,
+        "pixel-aspect-ratio", GST_TYPE_FRACTION, par_n, par_d, NULL);
+  }
+  return NULL;
+}
+
+GstVideoFormat
+gst_video_fourcc_to_format (guint32 fourcc)
+{
+  switch (fourcc) {
+    case GST_MAKE_FOURCC ('I', '4', '2', '0'):
+      return GST_VIDEO_FORMAT_I420;
+    case GST_MAKE_FOURCC ('Y', 'V', '1', '2'):
+      return GST_VIDEO_FORMAT_YV12;
+    case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'):
+      return GST_VIDEO_FORMAT_YUY2;
+    case GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'):
+      return GST_VIDEO_FORMAT_UYVY;
+    case GST_MAKE_FOURCC ('A', 'Y', 'U', 'V'):
+      return GST_VIDEO_FORMAT_AYUV;
+    default:
+      return GST_VIDEO_FORMAT_UNKNOWN;
+  }
+}
+
+guint32
+gst_video_format_to_fourcc (GstVideoFormat format)
+{
+  switch (format) {
+    case GST_VIDEO_FORMAT_I420:
+      return GST_MAKE_FOURCC ('I', '4', '2', '0');
+    case GST_VIDEO_FORMAT_YV12:
+      return GST_MAKE_FOURCC ('Y', 'V', '1', '2');
+    case GST_VIDEO_FORMAT_YUY2:
+      return GST_MAKE_FOURCC ('Y', 'U', 'Y', '2');
+    case GST_VIDEO_FORMAT_UYVY:
+      return GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y');
+    case GST_VIDEO_FORMAT_AYUV:
+      return GST_MAKE_FOURCC ('A', 'Y', 'U', 'V');
+    default:
+      return 0;
+  }
+}
+
+GstVideoFormat
+gst_video_rgb32_masks_to_format (int red_mask, int green_mask, int blue_mask)
+{
+  if (red_mask == 0xff000000 && green_mask == 0x00ff0000 &&
+      blue_mask == 0x0000ff00) {
+    return GST_VIDEO_FORMAT_RGBx;
+  }
+  if (red_mask == 0x0000ff00 && green_mask == 0x00ff0000 &&
+      blue_mask == 0xff000000) {
+    return GST_VIDEO_FORMAT_BGRx;
+  }
+
+  return GST_VIDEO_FORMAT_UNKNOWN;
+}
+
+gboolean
+gst_video_format_is_rgb (GstVideoFormat format)
+{
+  switch (format) {
+    case GST_VIDEO_FORMAT_I420:
+    case GST_VIDEO_FORMAT_YV12:
+    case GST_VIDEO_FORMAT_YUY2:
+    case GST_VIDEO_FORMAT_UYVY:
+    case GST_VIDEO_FORMAT_AYUV:
+      return FALSE;
+    case GST_VIDEO_FORMAT_RGBx:
+    case GST_VIDEO_FORMAT_BGRx:
+      return TRUE;
+    default:
+      return FALSE;
+  }
+}
+
+gboolean
+gst_video_format_is_yuv (GstVideoFormat format)
+{
+  switch (format) {
+    case GST_VIDEO_FORMAT_I420:
+    case GST_VIDEO_FORMAT_YV12:
+    case GST_VIDEO_FORMAT_YUY2:
+    case GST_VIDEO_FORMAT_UYVY:
+    case GST_VIDEO_FORMAT_AYUV:
+      return TRUE;
+    case GST_VIDEO_FORMAT_RGBx:
+    case GST_VIDEO_FORMAT_BGRx:
+      return FALSE;
+    default:
+      return FALSE;
+  }
+}
+
+gboolean
+gst_video_format_has_alpha (GstVideoFormat format)
+{
+  switch (format) {
+    case GST_VIDEO_FORMAT_I420:
+    case GST_VIDEO_FORMAT_YV12:
+    case GST_VIDEO_FORMAT_YUY2:
+    case GST_VIDEO_FORMAT_UYVY:
+      return FALSE;
+    case GST_VIDEO_FORMAT_AYUV:
+      return TRUE;
+    case GST_VIDEO_FORMAT_RGBx:
+    case GST_VIDEO_FORMAT_BGRx:
+      return FALSE;
+    default:
+      return FALSE;
+  }
+}
+
+int
+gst_video_format_get_row_stride (GstVideoFormat format, int component,
+    int width)
+{
+  switch (format) {
+    case GST_VIDEO_FORMAT_I420:
+    case GST_VIDEO_FORMAT_YV12:
+      if (component == 0) {
+        return GST_ROUND_UP_4 (width);
+      } else {
+        return GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2);
+      }
+    case GST_VIDEO_FORMAT_YUY2:
+    case GST_VIDEO_FORMAT_UYVY:
+      return GST_ROUND_UP_4 (width * 2);
+    case GST_VIDEO_FORMAT_AYUV:
+    case GST_VIDEO_FORMAT_RGBx:
+    case GST_VIDEO_FORMAT_BGRx:
+      return width * 4;
+    default:
+      return 0;
+  }
+}
+
+int
+gst_video_format_get_pixel_stride (GstVideoFormat format, int component)
+{
+  switch (format) {
+    case GST_VIDEO_FORMAT_I420:
+    case GST_VIDEO_FORMAT_YV12:
+      return 1;
+    case GST_VIDEO_FORMAT_YUY2:
+    case GST_VIDEO_FORMAT_UYVY:
+      if (component == 0) {
+        return 2;
+      } else {
+        return 4;
+      }
+    case GST_VIDEO_FORMAT_AYUV:
+    case GST_VIDEO_FORMAT_RGBx:
+    case GST_VIDEO_FORMAT_BGRx:
+      return 4;
+    default:
+      return 0;
+  }
+}
+
+int
+gst_video_format_get_component_width (GstVideoFormat format, int component,
+    int width)
+{
+  switch (format) {
+    case GST_VIDEO_FORMAT_I420:
+    case GST_VIDEO_FORMAT_YV12:
+    case GST_VIDEO_FORMAT_YUY2:
+    case GST_VIDEO_FORMAT_UYVY:
+      if (component == 0) {
+        return width;
+      } else {
+        return GST_ROUND_UP_2 (width) / 2;
+      }
+    case GST_VIDEO_FORMAT_AYUV:
+    case GST_VIDEO_FORMAT_RGBx:
+    case GST_VIDEO_FORMAT_BGRx:
+      return width;
+    default:
+      return 0;
+  }
+}
+
+int
+gst_video_format_get_component_height (GstVideoFormat format, int component,
+    int height)
+{
+  switch (format) {
+    case GST_VIDEO_FORMAT_I420:
+    case GST_VIDEO_FORMAT_YV12:
+      if (component == 0) {
+        return height;
+      } else {
+        return GST_ROUND_UP_2 (height) / 2;
+      }
+    case GST_VIDEO_FORMAT_YUY2:
+    case GST_VIDEO_FORMAT_UYVY:
+    case GST_VIDEO_FORMAT_AYUV:
+    case GST_VIDEO_FORMAT_RGBx:
+    case GST_VIDEO_FORMAT_BGRx:
+      return height;
+    default:
+      return 0;
+  }
+}
+
+int
+gst_video_format_get_component_offset (GstVideoFormat format, int component,
+    int width, int height)
+{
+  switch (format) {
+    case GST_VIDEO_FORMAT_I420:
+    case GST_VIDEO_FORMAT_YV12:
+      if (component == 0) {
+        return 0;
+      } else {
+        int offset;
+
+        offset = GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height);
+        if (component == 2) {
+          offset += GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2) *
+              (GST_ROUND_UP_2 (height) / 2);
+        }
+        return offset;
+      }
+    case GST_VIDEO_FORMAT_YUY2:
+      if (component == 0)
+        return 0;
+      if (component == 1)
+        return 1;
+      if (component == 2)
+        return 3;
+      return 0;
+    case GST_VIDEO_FORMAT_UYVY:
+      if (component == 0)
+        return 1;
+      if (component == 1)
+        return 0;
+      if (component == 2)
+        return 2;
+      return 0;
+    case GST_VIDEO_FORMAT_AYUV:
+      if (component == 0)
+        return 1;
+      if (component == 1)
+        return 2;
+      if (component == 2)
+        return 3;
+      if (component == 3)
+        return 0;
+      return 0;
+    case GST_VIDEO_FORMAT_RGBx:
+      if (component == 0)
+        return 0;
+      if (component == 1)
+        return 1;
+      if (component == 2)
+        return 2;
+      if (component == 3)
+        return 3;
+      return 0;
+    case GST_VIDEO_FORMAT_BGRx:
+      if (component == 0)
+        return 2;
+      if (component == 1)
+        return 1;
+      if (component == 2)
+        return 0;
+      if (component == 3)
+        return 3;
+      return 0;
+    default:
+      return 0;
+  }
+}
+
+int
+gst_video_format_get_size (GstVideoFormat format, int width, int height)
+{
+  int size;
+
+  switch (format) {
+    case GST_VIDEO_FORMAT_I420:
+    case GST_VIDEO_FORMAT_YV12:
+      size = GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height);
+      size += GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2) *
+          (GST_ROUND_UP_2 (height) / 2) * 2;
+      return size;
+    case GST_VIDEO_FORMAT_YUY2:
+    case GST_VIDEO_FORMAT_UYVY:
+      return GST_ROUND_UP_4 (width * 2) * height;
+    case GST_VIDEO_FORMAT_AYUV:
+    case GST_VIDEO_FORMAT_RGBx:
+    case GST_VIDEO_FORMAT_BGRx:
+      return width * 4 * height;
+    default:
+      return 0;
+  }
+}
+
+
+gboolean
+gst_video_convert (GstVideoFormat format, int width, int height,
+    int fps_n, int fps_d,
+    GstFormat src_format, gint64 src_value,
+    GstFormat dest_format, gint64 * dest_value)
+{
+  gboolean ret = FALSE;
+  int size;
+
+  size = gst_video_format_get_size (format, width, height);
+
+  GST_DEBUG ("converting value %" G_GINT64_FORMAT " from %s to %s",
+      src_value, gst_format_get_name (src_format),
+      gst_format_get_name (dest_format));
+
+  if (src_format == dest_format) {
+    *dest_value = src_value;
+    ret = TRUE;
+    goto done;
+  }
+
+  if (src_value == -1) {
+    *dest_value = -1;
+    ret = TRUE;
+    goto done;
+  }
+
+  /* bytes to frames */
+  if (src_format == GST_FORMAT_BYTES && dest_format == GST_FORMAT_DEFAULT) {
+    if (size != 0) {
+      *dest_value = gst_util_uint64_scale_int (src_value, 1, size);
+    } else {
+      GST_ERROR ("blocksize is 0");
+      *dest_value = 0;
+    }
+    ret = TRUE;
+    goto done;
+  }
+
+  /* frames to bytes */
+  if (src_format == GST_FORMAT_DEFAULT && dest_format == GST_FORMAT_BYTES) {
+    *dest_value = gst_util_uint64_scale_int (src_value, size, 1);
+    ret = TRUE;
+    goto done;
+  }
+
+  /* time to frames */
+  if (src_format == GST_FORMAT_TIME && dest_format == GST_FORMAT_DEFAULT) {
+    if (fps_d != 0) {
+      *dest_value = gst_util_uint64_scale (src_value,
+          fps_n, GST_SECOND * fps_d);
+    } else {
+      GST_ERROR ("framerate denominator is 0");
+      *dest_value = 0;
+    }
+    ret = TRUE;
+    goto done;
+  }
+
+  /* frames to time */
+  if (src_format == GST_FORMAT_DEFAULT && dest_format == GST_FORMAT_TIME) {
+    if (fps_n != 0) {
+      *dest_value = gst_util_uint64_scale (src_value,
+          GST_SECOND * fps_d, fps_n);
+    } else {
+      GST_ERROR ("framerate numerator is 0");
+      *dest_value = 0;
+    }
+    ret = TRUE;
+    goto done;
+  }
+
+  /* time to bytes */
+  if (src_format == GST_FORMAT_TIME && dest_format == GST_FORMAT_BYTES) {
+    if (fps_d != 0) {
+      *dest_value = gst_util_uint64_scale (src_value,
+          fps_n * size, GST_SECOND * fps_d);
+    } else {
+      GST_ERROR ("framerate denominator is 0");
+      *dest_value = 0;
+    }
+    ret = TRUE;
+    goto done;
+  }
+
+  /* bytes to time */
+  if (src_format == GST_FORMAT_BYTES && dest_format == GST_FORMAT_TIME) {
+    if (fps_n != 0 && size != 0) {
+      *dest_value = gst_util_uint64_scale (src_value,
+          GST_SECOND * fps_d, fps_n * size);
+    } else {
+      GST_ERROR ("framerate denominator and/or blocksize is 0");
+      *dest_value = 0;
+    }
+    ret = TRUE;
+  }
+
+done:
+
+  GST_DEBUG ("ret=%d result %" G_GINT64_FORMAT, ret, *dest_value);
+
+  return ret;
+}