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glcolorconvert: add support for converting texture targets

Browse source 
Solved with a simple shader templating mechanism and string replacements
of the necessary sampler types/texture accesses and texture coordinate
mangling for rectangular and external-oes textures.
This commit is contained in:
Matthew Waters 2015-10-29 13:04:31 +11:00
parent e61d504556
commit ccce217502
6 changed files with 614 additions and 381 deletions
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14
ext/gl/gstglcolorconvertelement.c
View file

@ -238,18 +238,8 @@ static GstCaps *
gst_gl_color_convert_element_fixate_caps (GstBaseTransform *
bt, GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
{
GstGLContext *context = GST_GL_BASE_FILTER (bt)->context;
GstCaps *ret;
ret =
GST_BASE_TRANSFORM_CLASS
(gst_gl_color_convert_element_parent_class)->fixate_caps (bt, direction,
caps, othercaps);
if (direction == GST_PAD_SINK) {
if (gst_caps_is_subset (caps, ret)) {
gst_caps_replace (&ret, caps);
}
}
return ret;
return gst_gl_color_convert_fixate_caps (context, direction, caps, othercaps);
}

906
gst-libs/gst/gl/gstglcolorconvert.c
View file

File diff suppressed because it is too large Load diff

8
gst-libs/gst/gl/gstglcolorconvert.h
View file

@ -100,7 +100,7 @@ struct _GstGLColorConvertClass
"width = " GST_VIDEO_SIZE_RANGE ", " \
"height = " GST_VIDEO_SIZE_RANGE ", " \
"framerate = " GST_VIDEO_FPS_RANGE ", " \
"texture-target = (string) 2D " \
"texture-target = (string) { 2D, rectangle, oes } " \
" ; " \
"video/x-raw(" GST_CAPS_FEATURE_MEMORY_GL_MEMORY "," \
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION "), " \
@ -108,7 +108,7 @@ struct _GstGLColorConvertClass
"width = " GST_VIDEO_SIZE_RANGE ", " \
"height = " GST_VIDEO_SIZE_RANGE ", " \
"framerate = " GST_VIDEO_FPS_RANGE ", " \
"texture-target = (string) 2D"
"texture-target = (string) { 2D, rectangle, oes }"
GstGLColorConvert * gst_gl_color_convert_new (GstGLContext * context);
@ -116,6 +116,10 @@ GstCaps * gst_gl_color_convert_transform_caps (GstGLContext * convert,
GstPadDirection direction,
GstCaps * caps,
GstCaps * filter);
GstCaps * gst_gl_color_convert_fixate_caps (GstGLContext * convert,
GstPadDirection direction,
GstCaps * caps,
GstCaps * other);
gboolean gst_gl_color_convert_set_caps (GstGLColorConvert * convert,
GstCaps * in_caps,
GstCaps * out_caps);

4
sys/applemedia/corevideotexturecache.h
View file

@ -36,6 +36,10 @@ typedef struct _GstCoreVideoTextureCache
#endif
GstVideoInfo input_info;
GstVideoInfo output_info;
gboolean configured;
GstCaps *in_caps;
GstCaps *out_caps;
GstGLColorConvert *convert;
} GstCoreVideoTextureCache;

53
sys/applemedia/corevideotexturecache.m
View file

@ -46,6 +46,7 @@ gst_core_video_texture_cache_new (GstGLContext * ctx)
cache->ctx = gst_object_ref (ctx);
gst_video_info_init (&cache->input_info);
cache->convert = gst_gl_color_convert_new (cache->ctx);
cache->configured = FALSE;
#if !HAVE_IOS
CGLPixelFormatObj pixelFormat =
@ -79,6 +80,10 @@ gst_core_video_texture_cache_free (GstCoreVideoTextureCache * cache)
#endif
gst_object_unref (cache->convert);
gst_object_unref (cache->ctx);
if (cache->in_caps)
gst_caps_unref (cache->in_caps);
if (cache->out_caps)
gst_caps_unref (cache->out_caps);
g_free (cache);
}
@ -103,10 +108,13 @@ gst_core_video_texture_cache_set_format (GstCoreVideoTextureCache * cache,
gst_caps_features_add (features, GST_CAPS_FEATURE_MEMORY_GL_MEMORY);
gst_video_info_from_caps (&cache->input_info, in_caps);
gst_gl_color_convert_set_caps (cache->convert, in_caps, out_caps);
gst_caps_unref (out_caps);
gst_caps_unref (in_caps);
cache->configured = FALSE;
if (cache->in_caps)
gst_caps_unref (cache->in_caps);
if (cache->out_caps)
gst_caps_unref (cache->out_caps);
cache->in_caps = in_caps;
cache->out_caps = out_caps;
}
static CVPixelBufferRef
@ -124,17 +132,6 @@ cv_pixel_buffer_from_gst_buffer (GstBuffer * buffer)
return cm_meta ? cm_meta->pixel_buf : cv_meta->pixbuf;
}
static GstGLTextureTarget
_gl_target_to_gst (guint target)
{
switch (target) {
case GL_TEXTURE_2D: return GST_GL_TEXTURE_TARGET_2D;
case GL_TEXTURE_RECTANGLE: return GST_GL_TEXTURE_TARGET_RECTANGLE;
case GL_TEXTURE_EXTERNAL_OES: return GST_GL_TEXTURE_TARGET_OES;
default: return 0;
}
}
static gboolean
gl_mem_from_buffer (GstCoreVideoTextureCache * cache,
GstBuffer * buffer, GstMemory **mem1, GstMemory **mem2)
@ -146,6 +143,7 @@ gl_mem_from_buffer (GstCoreVideoTextureCache * cache,
CVOpenGLESTextureRef texture = NULL;
#endif
CVPixelBufferRef pixel_buf = cv_pixel_buffer_from_gst_buffer (buffer);
GstGLTextureTarget gl_target;
*mem1 = NULL;
*mem2 = NULL;
@ -165,9 +163,10 @@ gl_mem_from_buffer (GstCoreVideoTextureCache * cache,
cache->cache, pixel_buf, NULL, &texture) != kCVReturnSuccess)
goto error;
gl_target = gst_gl_texture_target_from_gl (CVOpenGLTextureGetTarget (texture));
*mem1 = (GstMemory *) gst_gl_memory_wrapped_texture (cache->ctx,
CVOpenGLTextureGetName (texture),
_gl_target_to_gst (CVOpenGLTextureGetTarget (texture)),
CVOpenGLTextureGetName (texture), gl_target,
&cache->input_info, 0, NULL, texture, (GDestroyNotify) CFRelease);
break;
#else
@ -180,9 +179,10 @@ gl_mem_from_buffer (GstCoreVideoTextureCache * cache,
GL_RGBA, GL_UNSIGNED_BYTE, 0, &texture) != kCVReturnSuccess)
goto error;
gl_target = _gl_target_to_gst (CVOpenGLESTextureGetTarget (texture));
*mem1 = (GstMemory *) gst_gl_memory_wrapped_texture (cache->ctx,
CVOpenGLESTextureGetName (texture),
_gl_target_to_gst (CVOpenGLESTextureGetTarget (texture)),
CVOpenGLESTextureGetName (texture), gl_target,
&cache->input_info, 0, NULL, texture, (GDestroyNotify) CFRelease);
break;
case GST_VIDEO_FORMAT_NV12: {
@ -191,6 +191,7 @@ gl_mem_from_buffer (GstCoreVideoTextureCache * cache,
textype = gst_gl_texture_type_from_format (cache->ctx, GST_VIDEO_FORMAT_NV12, 0);
texfmt = gst_gl_format_from_gl_texture_type (textype);
gl_target = gst_gl_texture_target_from_gl (CVOpenGLESTextureGetTarget (texture));
/* vtdec does NV12 on iOS when doing GLMemory */
if (CVOpenGLESTextureCacheCreateTextureFromImage (kCFAllocatorDefault,
@ -201,8 +202,7 @@ gl_mem_from_buffer (GstCoreVideoTextureCache * cache,
goto error;
*mem1 = (GstMemory *) gst_gl_memory_wrapped_texture (cache->ctx,
CVOpenGLESTextureGetName (texture),
_gl_target_to_gst (CVOpenGLESTextureGetTarget (texture)),
CVOpenGLESTextureGetName (texture), gl_target,
&cache->input_info, 0, NULL, texture, (GDestroyNotify) CFRelease);
textype = gst_gl_texture_type_from_format (cache->ctx, GST_VIDEO_FORMAT_NV12, 1);
@ -216,8 +216,7 @@ gl_mem_from_buffer (GstCoreVideoTextureCache * cache,
goto error;
*mem2 = (GstMemory *) gst_gl_memory_wrapped_texture (cache->ctx,
CVOpenGLESTextureGetName (texture),
_gl_target_to_gst (CVOpenGLESTextureGetTarget (texture)),
CVOpenGLESTextureGetName (texture), gl_target,
&cache->input_info, 0, NULL, texture, (GDestroyNotify) CFRelease);
break;
}
@ -227,6 +226,14 @@ gl_mem_from_buffer (GstCoreVideoTextureCache * cache,
ret = FALSE;
}
if (ret && !cache->configured) {
const gchar *target_str = gst_gl_texture_target_to_string (gl_target);
gst_caps_set_simple (cache->in_caps, "texture-target", G_TYPE_STRING, target_str, NULL);
gst_caps_set_simple (cache->out_caps, "texture-target", G_TYPE_STRING, "2D", NULL);
ret = gst_gl_color_convert_set_caps (cache->convert, cache->in_caps, cache->out_caps);
}
return ret;
error:

10
sys/applemedia/vtdec.c
View file

@ -110,9 +110,13 @@ CFSTR ("RequireHardwareAcceleratedVideoDecoder");
#ifdef HAVE_IOS
#define VIDEO_SRC_CAPS \
GST_VIDEO_CAPS_MAKE_WITH_FEATURES \
(GST_CAPS_FEATURE_MEMORY_GL_MEMORY, \
"RGBA") ";" \
"video/x-raw(" GST_CAPS_FEATURE_MEMORY_GL_MEMORY "), " \
"format = (string) RGBA, " \
"width = " GST_VIDEO_SIZE_RANGE ", " \
"height = " GST_VIDEO_SIZE_RANGE ", " \
"framerate = " GST_VIDEO_FPS_RANGE ", " \
"texture-target = (string) 2D " \
" ; " \
GST_VIDEO_CAPS_MAKE(GST_VTDEC_VIDEO_FORMAT_STR) ";"
#else
#define VIDEO_SRC_CAPS \