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eglglessink: Add support for NV12 and NV21

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Also YUY2 and UYVY but this is disabled for now as it
doesn't work completely yet. Something is wrong with
the chroma.
This commit is contained in:
Sebastian Dröge 2012-09-21 17:08:44 +02:00
parent 72d05a681f
commit 99765c3333
1 changed files with 131 additions and 1 deletions
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132
ext/eglgles/gsteglglessink.c
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@ -180,6 +180,7 @@ static const char *frag_AYUV_prog = {
" gl_FragColor=vec4(r,g,b,1.0);"
"}"
};
static const char *frag_I420_YV12_prog = {
"precision mediump float;"
"varying vec2 opos;"
@ -200,6 +201,48 @@ static const char *frag_I420_YV12_prog = {
"}"
};
static const char *frag_NV12_NV21_prog = {
"precision mediump float;"
"varying vec2 opos;"
"uniform sampler2D Ytex,UVtex;"
"void main(void) {"
" float r,g,b,y,u,v;"
" vec2 nxy = opos.xy;"
" y=texture2D(Ytex,nxy).r;"
" u=texture2D(UVtex,nxy).%c;"
" v=texture2D(UVtex,nxy).%c;"
" 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);"
"}"
};
static const char *frag_YUY2_UYVY_prog = {
"precision mediump float;"
"varying vec2 opos;"
"uniform sampler2D Ytex, UVtex;"
"void main(void) {"
" float fx, fy, y, u, v, r, g, b;"
" fx = opos.x;"
" fy = opos.y;"
" y = texture2D(Ytex,vec2(fx,fy)).%c;"
" u = texture2D(UVtex,vec2(fx*0.5,fy)).%c;"
" v = texture2D(UVtex,vec2(fx*0.5,fy)).%c;"
" 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.
@ -212,9 +255,11 @@ static GstStaticPadTemplate gst_eglglessink_sink_template_factory =
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_RGBA ";"
GST_VIDEO_CAPS_RGBx ";"
GST_VIDEO_CAPS_YUV ("{ AYUV, I420, YV12 }") ";"
GST_VIDEO_CAPS_YUV ("{ AYUV, I420, YV12, NV12, NV21 }") ";"
GST_VIDEO_CAPS_RGB ";" GST_VIDEO_CAPS_RGB_16));
/* FIXME: YUY2 and UYVY don't work completely yet, there are issues with the chroma */
/* Filter signals and args */
enum
{
@ -850,6 +895,14 @@ gst_eglglessink_fill_supported_fbuffer_configs (GstEglGlesSink * eglglessink)
gst_video_format_new_template_caps (GST_VIDEO_FORMAT_I420));
gst_caps_append (format->caps,
gst_video_format_new_template_caps (GST_VIDEO_FORMAT_YV12));
gst_caps_append (format->caps,
gst_video_format_new_template_caps (GST_VIDEO_FORMAT_NV12));
gst_caps_append (format->caps,
gst_video_format_new_template_caps (GST_VIDEO_FORMAT_NV21));
gst_caps_append (format->caps,
gst_video_format_new_template_caps (GST_VIDEO_FORMAT_YUY2));
gst_caps_append (format->caps,
gst_video_format_new_template_caps (GST_VIDEO_FORMAT_UYVY));
eglglessink->supported_fmts =
g_list_append (eglglessink->supported_fmts, format);
ret++;
@ -1265,6 +1318,7 @@ gst_eglglessink_init_egl_surface (GstEglGlesSink * eglglessink)
GLchar *info_log;
gint n_textures = 0;
const gchar *texnames[3] = { NULL, };
gchar *tmp_prog = NULL;
GST_DEBUG_OBJECT (eglglessink, "Enter EGL surface setup");
@ -1352,6 +1406,34 @@ gst_eglglessink_init_egl_surface (GstEglGlesSink * eglglessink)
texnames[1] = "Utex";
texnames[2] = "Vtex";
break;
case GST_VIDEO_FORMAT_YUY2:
tmp_prog = g_strdup_printf (frag_YUY2_UYVY_prog, 'r', 'g', 'a');
glShaderSource (fraghandle, 1, (const GLchar **) &tmp_prog, NULL);
n_textures = 2;
texnames[0] = "Ytex";
texnames[1] = "UVtex";
break;
case GST_VIDEO_FORMAT_UYVY:
tmp_prog = g_strdup_printf (frag_YUY2_UYVY_prog, 'a', 'r', 'b');
glShaderSource (fraghandle, 1, (const GLchar **) &tmp_prog, NULL);
n_textures = 2;
texnames[0] = "Ytex";
texnames[1] = "UVtex";
break;
case GST_VIDEO_FORMAT_NV12:
tmp_prog = g_strdup_printf (frag_NV12_NV21_prog, 'r', 'a');
glShaderSource (fraghandle, 1, (const GLchar **) &tmp_prog, NULL);
n_textures = 2;
texnames[0] = "Ytex";
texnames[1] = "UVtex";
break;
case GST_VIDEO_FORMAT_NV21:
tmp_prog = g_strdup_printf (frag_NV12_NV21_prog, 'a', 'r');
glShaderSource (fraghandle, 1, (const GLchar **) &tmp_prog, NULL);
n_textures = 2;
texnames[0] = "Ytex";
texnames[1] = "UVtex";
break;
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_RGBA:
@ -1450,6 +1532,8 @@ gst_eglglessink_init_egl_surface (GstEglGlesSink * eglglessink)
g_mutex_unlock (eglglessink->flow_lock);
}
g_free (tmp_prog);
return TRUE;
/* Errors */
@ -1459,6 +1543,7 @@ HANDLE_ERROR_LOCKED:
g_mutex_unlock (eglglessink->flow_lock);
HANDLE_ERROR:
GST_ERROR_OBJECT (eglglessink, "Couldn't setup EGL surface");
g_free (tmp_prog);
return FALSE;
}
@ -1728,6 +1813,51 @@ gst_eglglessink_render_and_display (GstEglGlesSink * eglglessink,
GL_UNSIGNED_BYTE, GST_BUFFER_DATA (buf) + coffset);
break;
}
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:{
glActiveTexture (GL_TEXTURE0);
glBindTexture (GL_TEXTURE_2D, eglglessink->texture[0]);
glTexImage2D (GL_TEXTURE_2D, 0, GL_LUMINANCE_ALPHA,
w, h, 0, GL_LUMINANCE_ALPHA,
GL_UNSIGNED_BYTE, GST_BUFFER_DATA (buf));
glActiveTexture (GL_TEXTURE1);
glBindTexture (GL_TEXTURE_2D, eglglessink->texture[1]);
glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA,
GST_ROUND_UP_2 (w) / 2, h, 0, GL_RGBA,
GL_UNSIGNED_BYTE, GST_BUFFER_DATA (buf));
break;
}
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:{
gint coffset, cw, ch;
coffset =
gst_video_format_get_component_offset (eglglessink->format, 0,
w, h);
cw = gst_video_format_get_component_width (eglglessink->format, 0,
w);
ch = gst_video_format_get_component_height (eglglessink->format,
0, h);
glActiveTexture (GL_TEXTURE0);
glBindTexture (GL_TEXTURE_2D, eglglessink->texture[0]);
glTexImage2D (GL_TEXTURE_2D, 0, GL_LUMINANCE,
cw, ch, 0, GL_LUMINANCE,
GL_UNSIGNED_BYTE, GST_BUFFER_DATA (buf) + coffset);
coffset =
gst_video_format_get_component_offset (eglglessink->format,
(eglglessink->format == GST_VIDEO_FORMAT_NV12 ? 1 : 2), w, h);
cw = gst_video_format_get_component_width (eglglessink->format, 1,
w);
ch = gst_video_format_get_component_height (eglglessink->format,
1, h);
glActiveTexture (GL_TEXTURE1);
glBindTexture (GL_TEXTURE_2D, eglglessink->texture[1]);
glTexImage2D (GL_TEXTURE_2D, 0, GL_LUMINANCE_ALPHA,
cw, ch, 0, GL_LUMINANCE_ALPHA,
GL_UNSIGNED_BYTE, GST_BUFFER_DATA (buf) + coffset);
break;
}
default:
g_assert_not_reached ();
break;