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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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video: Add 8-bit paletted RGB
API: Add GST_VIDEO_FORMAT_RGB8_PALETTED API: Add GST_VIDEO_CAPS_RGB8_PALETTED API: Add gst_video_parse_caps_palette()
This commit is contained in:
Sebastian Dröge
parent
1abb8257a0
commit
ea7446e5b5
2 changed files with 89 additions and 15 deletions
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@ -349,19 +349,22 @@ gst_video_format_parse_caps (GstCaps * caps, GstVideoFormat * format,
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} else if (gst_structure_has_name (structure, "video/x-raw-rgb")) {
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int depth;
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int bpp;
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int endianness;
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int red_mask;
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int green_mask;
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int blue_mask;
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int alpha_mask;
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int endianness = 0;
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int red_mask = 0;
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int green_mask = 0;
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int blue_mask = 0;
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int alpha_mask = 0;
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gboolean have_alpha;
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ok &= gst_structure_get_int (structure, "depth", &depth);
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ok &= gst_structure_get_int (structure, "bpp", &bpp);
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if (bpp != 8) {
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ok &= gst_structure_get_int (structure, "endianness", &endianness);
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ok &= gst_structure_get_int (structure, "red_mask", &red_mask);
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ok &= gst_structure_get_int (structure, "green_mask", &green_mask);
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ok &= gst_structure_get_int (structure, "blue_mask", &blue_mask);
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}
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have_alpha = gst_structure_get_int (structure, "alpha_mask", &alpha_mask);
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if (depth == 24 && bpp == 32 && endianness == G_BIG_ENDIAN) {
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@ -390,6 +393,8 @@ gst_video_format_parse_caps (GstCaps * caps, GstVideoFormat * format,
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if (*format == GST_VIDEO_FORMAT_UNKNOWN) {
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ok = FALSE;
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}
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} else if (depth == 8 && bpp == 8) {
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*format = GST_VIDEO_FORMAT_RGB8_PALETTED;
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} else {
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ok = FALSE;
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}
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@ -605,6 +610,10 @@ gst_video_format_new_caps (GstVideoFormat format, int width,
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depth = 15;
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have_alpha = FALSE;
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break;
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case GST_VIDEO_FORMAT_RGB8_PALETTED:
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bpp = 8;
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depth = 8;
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have_alpha = FALSE;
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default:
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return NULL;
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}
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@ -649,21 +658,26 @@ gst_video_format_new_caps (GstVideoFormat format, int width,
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default:
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return NULL;
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}
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} else {
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} else if (bpp != 8) {
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return NULL;
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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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"endianness", G_TYPE_INT, G_BIG_ENDIAN,
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"red_mask", G_TYPE_INT, red_mask,
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"green_mask", G_TYPE_INT, green_mask,
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"blue_mask", G_TYPE_INT, blue_mask,
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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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if (bpp != 8) {
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gst_caps_set_simple (caps,
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"endianness", G_TYPE_INT, G_BIG_ENDIAN,
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"red_mask", G_TYPE_INT, red_mask,
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"green_mask", G_TYPE_INT, green_mask,
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"blue_mask", G_TYPE_INT, blue_mask, NULL);
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}
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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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@ -985,6 +999,7 @@ gst_video_format_is_rgb (GstVideoFormat format)
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case GST_VIDEO_FORMAT_BGR16:
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case GST_VIDEO_FORMAT_RGB15:
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case GST_VIDEO_FORMAT_BGR15:
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case GST_VIDEO_FORMAT_RGB8_PALETTED:
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return TRUE;
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default:
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return FALSE;
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@ -1038,6 +1053,7 @@ gst_video_format_is_yuv (GstVideoFormat format)
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case GST_VIDEO_FORMAT_BGR16:
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case GST_VIDEO_FORMAT_RGB15:
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case GST_VIDEO_FORMAT_BGR15:
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case GST_VIDEO_FORMAT_RGB8_PALETTED:
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return FALSE;
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default:
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return FALSE;
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@ -1107,6 +1123,7 @@ gst_video_format_has_alpha (GstVideoFormat format)
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case GST_VIDEO_FORMAT_ARGB:
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case GST_VIDEO_FORMAT_ABGR:
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case GST_VIDEO_FORMAT_A420:
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case GST_VIDEO_FORMAT_RGB8_PALETTED:
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return TRUE;
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case GST_VIDEO_FORMAT_RGBx:
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case GST_VIDEO_FORMAT_BGRx:
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@ -1217,6 +1234,8 @@ gst_video_format_get_row_stride (GstVideoFormat format, int component,
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} else {
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return GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2);
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}
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case GST_VIDEO_FORMAT_RGB8_PALETTED:
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return GST_ROUND_UP_4 (width);
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default:
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return 0;
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}
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@ -1303,6 +1322,8 @@ gst_video_format_get_pixel_stride (GstVideoFormat format, int component)
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case GST_VIDEO_FORMAT_UYVP:
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/* UYVP is packed at the bit level, so pixel stride doesn't make sense */
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return 0;
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case GST_VIDEO_FORMAT_RGB8_PALETTED:
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return 1;
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default:
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return 0;
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}
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@ -1375,6 +1396,7 @@ gst_video_format_get_component_width (GstVideoFormat format,
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case GST_VIDEO_FORMAT_GRAY16_LE:
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case GST_VIDEO_FORMAT_Y800:
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case GST_VIDEO_FORMAT_Y16:
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case GST_VIDEO_FORMAT_RGB8_PALETTED:
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return width;
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case GST_VIDEO_FORMAT_A420:
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if (component == 0 || component == 3) {
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@ -1449,6 +1471,7 @@ gst_video_format_get_component_height (GstVideoFormat format,
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case GST_VIDEO_FORMAT_Y800:
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case GST_VIDEO_FORMAT_Y16:
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case GST_VIDEO_FORMAT_UYVP:
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case GST_VIDEO_FORMAT_RGB8_PALETTED:
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return height;
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case GST_VIDEO_FORMAT_A420:
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if (component == 0 || component == 3) {
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@ -1673,6 +1696,8 @@ gst_video_format_get_component_offset (GstVideoFormat format,
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2 * GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2) *
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(GST_ROUND_UP_2 (height) / 2);
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}
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case GST_VIDEO_FORMAT_RGB8_PALETTED:
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return 0;
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default:
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return 0;
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}
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@ -1746,6 +1771,7 @@ gst_video_format_get_size (GstVideoFormat format, int width, int height)
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return GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height) * 3 / 2;
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case GST_VIDEO_FORMAT_GRAY8:
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case GST_VIDEO_FORMAT_Y800:
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case GST_VIDEO_FORMAT_RGB8_PALETTED:
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return GST_ROUND_UP_4 (width) * height;
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case GST_VIDEO_FORMAT_GRAY16_BE:
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case GST_VIDEO_FORMAT_GRAY16_LE:
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@ -1958,3 +1984,35 @@ gst_video_event_parse_still_frame (GstEvent * event, gboolean * in_still)
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*in_still = ev_still_state;
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return TRUE;
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}
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/**
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* gst_video_parse_caps_palette:
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* @caps: #GstCaps to parse
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*
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* Returns the palette data from the caps as a #GstBuffer. For
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* #GST_VIDEO_FORMAT_RGB8_PALETTED this is containing 256 #guint32
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* values, each containing ARGB colors in native endianness.
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*
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* Returns: a #GstBuffer containing the palette data. Unref after usage.
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* Since: 0.10.32
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*/
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GstBuffer *
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gst_video_parse_caps_palette (GstCaps * caps)
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{
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GstStructure *s;
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const GValue *p_v;
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GstBuffer *p;
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if (!gst_caps_is_fixed (caps))
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return NULL;
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s = gst_caps_get_structure (caps, 0);
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p_v = gst_structure_get_value (s, "palette_data");
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if (!p_v || !GST_VALUE_HOLDS_BUFFER (p_v))
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return NULL;
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p = gst_buffer_ref (gst_value_get_buffer (p_v));
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return p;
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}
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@ -65,6 +65,7 @@ G_BEGIN_DECLS
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* @GST_VIDEO_FORMAT_BGR15: reverse rgb 5-5-5 bits per component (Since: 0.10.30)
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* @GST_VIDEO_FORMAT_UYVP: packed 10-bit 4:2:2 YUV (U0-Y0-V0-Y1 U2-Y2-V2-Y3 U4 ...) (Since: 0.10.31)
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* @GST_VIDEO_FORMAT_A420: planar 4:4:2:0 AYUV (Since: 0.10.31)
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* @GST_VIDEO_FORMAT_RGB8_PALETTED: 8-bit paletted RGB (Since: 0.10.32)
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*
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* Enum value describing the most common video formats.
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*/
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@ -104,7 +105,8 @@ typedef enum {
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GST_VIDEO_FORMAT_RGB15,
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GST_VIDEO_FORMAT_BGR15,
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GST_VIDEO_FORMAT_UYVP,
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GST_VIDEO_FORMAT_A420
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GST_VIDEO_FORMAT_A420,
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GST_VIDEO_FORMAT_RGB8_PALETTED
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} GstVideoFormat;
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#define GST_VIDEO_BYTE1_MASK_32 "0xFF000000"
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@ -288,6 +290,19 @@ typedef enum {
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#define GST_VIDEO_CAPS_BGR_15 \
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__GST_VIDEO_CAPS_MAKE_15 (3, 2, 1)
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/**
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* GST_VIDEO_CAPS_RGB8_PALETTED:
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*
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* Generic caps string for 8-bit paletted RGB video, for use in pad templates.
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*
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* Since: 0.10.32
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*/
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#define GST_VIDEO_CAPS_RGB8_PALETTED \
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"video/x-raw-rgb, bpp = (int)8, depth = (int)8, " \
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"width = "GST_VIDEO_SIZE_RANGE" , " \
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"height = " GST_VIDEO_SIZE_RANGE ", " \
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"framerate = "GST_VIDEO_FPS_RANGE
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/**
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* GST_VIDEO_CAPS_YUV:
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* @fourcc: YUV fourcc format that describes the pixel layout, as string
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@ -387,6 +402,7 @@ gboolean gst_video_parse_caps_pixel_aspect_ratio (GstCaps *caps,
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int *par_n, int *par_d);
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const char *gst_video_parse_caps_color_matrix (GstCaps * caps);
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const char *gst_video_parse_caps_chroma_site (GstCaps * caps);
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GstBuffer *gst_video_parse_caps_palette (GstCaps * caps);
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GstCaps * gst_video_format_new_caps (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);
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