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cogl-gst: video-sink: fix YV12/I420 support

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This commit is contained in:
Lionel Landwerlin 2013-11-26 11:11:42 +00:00
parent 1b0d0f3892
commit 6101360304
1 changed files with 50 additions and 5 deletions
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55
cogl-gst/cogl-gst-video-sink.c
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@ -614,8 +614,53 @@ cogl_gst_yv12_upload (CoglGstVideoSink *sink,
GstBuffer *buffer)
{
CoglGstVideoSinkPrivate *priv = sink->priv;
GstVideoFrame frame;
CoglPixelFormat format = COGL_PIXEL_FORMAT_A_8;
GstVideoFrame frame;
if (!gst_video_frame_map (&frame, &priv->info, buffer, GST_MAP_READ))
goto map_fail;
clear_frame_textures (sink);
priv->frame[0] =
video_texture_new_from_data (priv->ctx,
GST_VIDEO_INFO_COMP_WIDTH (&priv->info, 0),
GST_VIDEO_INFO_COMP_HEIGHT (&priv->info, 0),
format, format,
priv->info.stride[0], frame.data[0], NULL);
priv->frame[2] =
video_texture_new_from_data (priv->ctx,
GST_VIDEO_INFO_COMP_WIDTH (&priv->info, 1),
GST_VIDEO_INFO_COMP_HEIGHT (&priv->info, 1),
format, format,
priv->info.stride[1], frame.data[1], NULL);
priv->frame[1] =
video_texture_new_from_data (priv->ctx,
GST_VIDEO_INFO_COMP_WIDTH (&priv->info, 2),
GST_VIDEO_INFO_COMP_HEIGHT (&priv->info, 2),
format, format,
priv->info.stride[2], frame.data[2], NULL);
gst_video_frame_unmap (&frame);
return TRUE;
map_fail:
{
GST_ERROR_OBJECT (sink, "Could not map incoming video frame");
return FALSE;
}
}
static CoglBool
cogl_gst_i420_upload (CoglGstVideoSink *sink,
GstBuffer *buffer)
{
CoglGstVideoSinkPrivate *priv = sink->priv;
CoglPixelFormat format = COGL_PIXEL_FORMAT_A_8;
GstVideoFrame frame;
if (!gst_video_frame_map (&frame, &priv->info, buffer, GST_MAP_READ))
goto map_fail;
@ -673,9 +718,9 @@ cogl_gst_yv12_glsl_setup_pipeline (CoglGstVideoSink *sink,
"cogl_gst_sample_video%i (vec2 UV)\n"
"{\n"
" float y = 1.1640625 * "
"(texture2D (cogl_sampler%i, UV).a - 0.0625);\n"
" float u = texture2D (cogl_sampler%i, UV).a - 0.5;\n"
" float v = texture2D (cogl_sampler%i, UV).a - 0.5;\n"
"(texture2D (cogl_sampler%i, UV).g - 0.0625);\n"
" float u = texture2D (cogl_sampler%i, UV).g - 0.5;\n"
" float v = texture2D (cogl_sampler%i, UV).g - 0.5;\n"
" vec4 color;\n"
" color.r = y + 1.59765625 * v;\n"
" color.g = y - 0.390625 * u - 0.8125 * v;\n"
@ -714,7 +759,7 @@ static CoglGstRenderer i420_glsl_renderer =
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("I420")),
3, /* n_layers */
cogl_gst_yv12_glsl_setup_pipeline,
cogl_gst_yv12_upload,
cogl_gst_i420_upload,
};
static void