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eglglessink: Add support for AYUV

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This commit is contained in:
Sebastian Dröge 2012-09-20 17:14:21 +02:00
parent c4643491c4
commit d42d5e1139
1 changed files with 41 additions and 4 deletions
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45
ext/eglgles/gsteglglessink.c
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@ -137,13 +137,15 @@ static PFNGLEGLIMAGETARGETTEXTURE2DOESPROC my_glEGLImageTargetTexture2DOES;
#endif
#endif
/* *INDENT-OFF* */
static const char *vert_prog = {
"attribute vec3 position;"
"varying vec2 opos;"
"void main(void)"
"{"
" opos = vec2((position.x + 1.0)/2.0, ((-1.0 * position.y) + 1.0)/2.0);"
" gl_Position = vec4(position, 1.0);" "}"
" gl_Position = vec4(position, 1.0);"
"}"
};
static const char *frag_prog = {
@ -152,9 +154,32 @@ static const char *frag_prog = {
"uniform sampler2D tex;"
"void main(void)"
"{"
" vec4 t = texture2D(tex, opos);" " gl_FragColor = vec4(t.xyz, 1.0);" "}"
" vec4 t = texture2D(tex, opos);"
" gl_FragColor = vec4(t.xyz, 1.0);"
"}"
};
/* From gst-plugins-gl */
static const char *frag_AYUV_prog = {
"precision mediump float;"
"varying vec2 opos;"
"uniform sampler2D tex;"
"void main(void) {"
" float r,g,b,y,u,v;"
" vec2 nxy = opos.xy;"
" y=texture2D(tex,nxy).g;"
" u=texture2D(tex,nxy).b;"
" v=texture2D(tex,nxy).a;"
" y=1.1643*(y-0.0625);"
" u=u-0.5;"
" v=v-0.5;"
" r=y+1.5958*v;"
" g=y-0.39173*u-0.81290*v;"
" b=y+2.017*u;"
" gl_FragColor=vec4(r,g,b,1.0);"
"}" };
/* *INDENT-ON* */
/* Input capabilities.
*
* OpenGL ES Standard does not mandate YUV support
@ -164,7 +189,9 @@ static GstStaticPadTemplate gst_eglglessink_sink_template_factory =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_RGBA ";" GST_VIDEO_CAPS_RGBx ";"
GST_STATIC_CAPS (GST_VIDEO_CAPS_RGBA ";"
GST_VIDEO_CAPS_RGBx ";"
GST_VIDEO_CAPS_YUV ("AYUV") ";"
GST_VIDEO_CAPS_RGB ";" GST_VIDEO_CAPS_RGB_16));
/* Filter signals and args */
@ -793,6 +820,8 @@ gst_eglglessink_fill_supported_fbuffer_configs (GstEglGlesSink * eglglessink)
format->caps = gst_video_format_new_template_caps (GST_VIDEO_FORMAT_RGBA);
gst_caps_append (format->caps,
gst_video_format_new_template_caps (GST_VIDEO_FORMAT_RGBx));
gst_caps_append (format->caps,
gst_video_format_new_template_caps (GST_VIDEO_FORMAT_AYUV));
eglglessink->supported_fmts =
g_list_append (eglglessink->supported_fmts, format);
ret++;
@ -1248,7 +1277,11 @@ gst_eglglessink_init_egl_surface (GstEglGlesSink * eglglessink)
}
fraghandle = glCreateShader (GL_FRAGMENT_SHADER);
glShaderSource (fraghandle, 1, &frag_prog, NULL);
if (eglglessink->format == GST_VIDEO_FORMAT_AYUV)
glShaderSource (fraghandle, 1, &frag_AYUV_prog, NULL);
else
glShaderSource (fraghandle, 1, &frag_prog, NULL);
if (got_gl_error ("glShaderSource fragment"))
goto HANDLE_ERROR;
@ -1521,6 +1554,10 @@ gst_eglglessink_render_and_display (GstEglGlesSink * eglglessink,
glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
GL_UNSIGNED_BYTE, GST_BUFFER_DATA (buf));
break;
case GST_VIDEO_FORMAT_AYUV:
glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
GL_UNSIGNED_BYTE, GST_BUFFER_DATA (buf));
break;
default:
g_assert_not_reached ();
break;