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video: Add gst_video_format_new_template_caps()
This commit is contained in:
David Schleef
parent
91ed9290b8
commit
a08227505f
2 changed files with 102 additions and 51 deletions
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@ -544,36 +544,14 @@ gst_video_format_new_caps_interlaced (GstVideoFormat format,
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return res;
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}
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/**
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* gst_video_format_new_caps:
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* @format: the #GstVideoFormat describing the raw video format
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* @width: width of video
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* @height: height of video
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* @framerate_n: numerator of frame rate
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* @framerate_d: denominator of frame rate
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* @par_n: numerator of pixel aspect ratio
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* @par_d: denominator of pixel aspect ratio
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*
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* Creates a new #GstCaps object based on the parameters provided.
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*
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* Since: 0.10.16
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*
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* Returns: a new #GstCaps object, or NULL if there was an error
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*/
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GstCaps *
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gst_video_format_new_caps (GstVideoFormat format, int width,
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int height, int framerate_n, int framerate_d, int par_n, int par_d)
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static GstCaps *
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gst_video_format_new_caps_raw (GstVideoFormat format)
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{
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g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, NULL);
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g_return_val_if_fail (width > 0 && height > 0, NULL);
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if (gst_video_format_is_yuv (format)) {
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return gst_caps_new_simple ("video/x-raw-yuv",
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"format", GST_TYPE_FOURCC, gst_video_format_to_fourcc (format),
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"width", G_TYPE_INT, width,
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"height", G_TYPE_INT, height,
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"framerate", GST_TYPE_FRACTION, framerate_n, framerate_d,
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"pixel-aspect-ratio", GST_TYPE_FRACTION, par_n, par_d, NULL);
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"format", GST_TYPE_FOURCC, gst_video_format_to_fourcc (format), NULL);
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}
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if (gst_video_format_is_rgb (format)) {
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GstCaps *caps;
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@ -651,14 +629,11 @@ gst_video_format_new_caps (GstVideoFormat format, int width,
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mask = 0xff0000;
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}
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red_mask =
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mask >> (8 * gst_video_format_get_component_offset (format, 0,
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width, height));
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mask >> (8 * gst_video_format_get_component_offset (format, 0, 0, 0));
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green_mask =
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mask >> (8 * gst_video_format_get_component_offset (format, 1,
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width, height));
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mask >> (8 * gst_video_format_get_component_offset (format, 1, 0, 0));
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blue_mask =
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mask >> (8 * gst_video_format_get_component_offset (format, 2,
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width, height));
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mask >> (8 * gst_video_format_get_component_offset (format, 2, 0, 0));
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} else if (bpp == 16) {
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switch (format) {
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case GST_VIDEO_FORMAT_RGB16:
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@ -690,12 +665,7 @@ gst_video_format_new_caps (GstVideoFormat format, int width,
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}
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caps = gst_caps_new_simple ("video/x-raw-rgb",
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"bpp", G_TYPE_INT, bpp,
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"depth", G_TYPE_INT, depth,
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"width", G_TYPE_INT, width,
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"height", G_TYPE_INT, height,
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"framerate", GST_TYPE_FRACTION, framerate_n, framerate_d,
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"pixel-aspect-ratio", GST_TYPE_FRACTION, par_n, par_d, NULL);
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"bpp", G_TYPE_INT, bpp, "depth", G_TYPE_INT, depth, NULL);
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if (bpp != 8) {
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gst_caps_set_simple (caps,
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@ -707,8 +677,7 @@ gst_video_format_new_caps (GstVideoFormat format, int width,
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if (have_alpha) {
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alpha_mask =
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mask >> (8 * gst_video_format_get_component_offset (format, 3,
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width, height));
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mask >> (8 * gst_video_format_get_component_offset (format, 3, 0, 0));
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gst_caps_set_simple (caps, "alpha_mask", G_TYPE_INT, alpha_mask, NULL);
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}
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return caps;
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@ -740,21 +709,12 @@ gst_video_format_new_caps (GstVideoFormat format, int width,
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if (bpp > 8) {
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caps = gst_caps_new_simple ("video/x-raw-gray",
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"bpp", G_TYPE_INT, bpp,
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"depth", G_TYPE_INT, depth,
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"width", G_TYPE_INT, width,
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"height", G_TYPE_INT, height,
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"framerate", GST_TYPE_FRACTION, framerate_n, framerate_d,
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"pixel-aspect-ratio", GST_TYPE_FRACTION, par_n, par_d, NULL);
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"bpp", G_TYPE_INT, bpp, "depth", G_TYPE_INT, depth, NULL);
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} else {
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caps = gst_caps_new_simple ("video/x-raw-gray",
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"bpp", G_TYPE_INT, bpp,
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"depth", G_TYPE_INT, depth,
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"endianness", G_TYPE_INT, G_BIG_ENDIAN,
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"width", G_TYPE_INT, width,
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"height", G_TYPE_INT, height,
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"framerate", GST_TYPE_FRACTION, framerate_n, framerate_d,
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"pixel-aspect-ratio", GST_TYPE_FRACTION, par_n, par_d, NULL);
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"endianness", G_TYPE_INT, G_BIG_ENDIAN, NULL);
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}
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return caps;
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@ -763,6 +723,96 @@ gst_video_format_new_caps (GstVideoFormat format, int width,
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return NULL;
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}
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/**
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* gst_video_format_new_template_caps:
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* @format: the #GstVideoFormat describing the raw video format
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*
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* Creates a new #GstCaps object based on the parameters provided.
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* Size, frame rate, and pixel aspect ratio are set to the full
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* range.
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*
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* Since: 0.10.33
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*
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* Returns: a new #GstCaps object, or NULL if there was an error
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*/
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GstCaps *
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gst_video_format_new_template_caps (GstVideoFormat format)
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{
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GstCaps *caps;
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GstStructure *structure;
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g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, NULL);
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caps = gst_video_format_new_caps_raw (format);
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if (caps) {
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GValue value = { 0 };
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GValue v = { 0 };
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structure = gst_caps_get_structure (caps, 0);
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gst_structure_set (structure,
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"width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
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"height", GST_TYPE_INT_RANGE, 1, G_MAXINT,
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"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1,
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"pixel-aspect-ratio", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
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g_value_init (&value, GST_TYPE_LIST);
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g_value_init (&v, G_TYPE_BOOLEAN);
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g_value_set_boolean (&v, TRUE);
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gst_value_list_append_value (&value, &v);
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g_value_set_boolean (&v, FALSE);
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gst_value_list_append_value (&value, &v);
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gst_structure_set_value (structure, "interlaced", &value);
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g_value_reset (&value);
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g_value_reset (&v);
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}
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return caps;
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}
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/**
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* gst_video_format_new_caps:
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* @format: the #GstVideoFormat describing the raw video format
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* @width: width of video
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* @height: height of video
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* @framerate_n: numerator of frame rate
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* @framerate_d: denominator of frame rate
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* @par_n: numerator of pixel aspect ratio
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* @par_d: denominator of pixel aspect ratio
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*
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* Creates a new #GstCaps object based on the parameters provided.
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*
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* Since: 0.10.16
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*
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* Returns: a new #GstCaps object, or NULL if there was an error
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*/
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GstCaps *
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gst_video_format_new_caps (GstVideoFormat format, int width,
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int height, int framerate_n, int framerate_d, int par_n, int par_d)
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{
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GstCaps *caps;
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GstStructure *structure;
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g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, NULL);
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g_return_val_if_fail (width > 0 && height > 0, NULL);
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caps = gst_video_format_new_caps_raw (format);
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if (caps) {
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structure = gst_caps_get_structure (caps, 0);
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gst_structure_set (structure,
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"width", G_TYPE_INT, width,
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"height", G_TYPE_INT, height,
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"framerate", GST_TYPE_FRACTION, framerate_n, framerate_d,
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"pixel-aspect-ratio", GST_TYPE_FRACTION, par_n, par_d, NULL);
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}
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return caps;
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}
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/**
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* gst_video_format_from_fourcc:
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* @fourcc: a FOURCC value representing raw YUV video
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@ -461,7 +461,8 @@ GstCaps * gst_video_format_new_caps (GstVideoFormat format,
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int par_n, int par_d);
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GstCaps * gst_video_format_new_caps_interlaced (GstVideoFormat format,
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int width, int height, int framerate_n, int framerate_d,
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int par_n, int par_d, gboolean interlaced);
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int par_n, int par_d, gboolean interlaced);
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GstCaps * gst_video_format_new_template_caps (GstVideoFormat format);
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GstVideoFormat gst_video_format_from_fourcc (guint32 fourcc);
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guint32 gst_video_format_to_fourcc (GstVideoFormat format);
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gboolean gst_video_format_is_rgb (GstVideoFormat format);
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