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ffmpegcolorspace: Speed up _remove_format_info

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Instead of copying full caps, use the fact that the provided caps only have
one structure and only copy around structures.
This commit is contained in:
Edward Hervey 2010-06-14 13:26:02 +02:00
parent 19f5fda87d
commit 3f1f8f66ed
1 changed files with 13 additions and 27 deletions
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40
gst/ffmpegcolorspace/gstffmpegcolorspace.c
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@ -58,40 +58,26 @@ static GstPadTemplate *sinktempl, *srctempl;
static GstCaps *
gst_ffmpegcsp_caps_remove_format_info (GstCaps * caps)
{
int i;
GstStructure *structure;
GstCaps *rgbcaps;
GstCaps *graycaps;
GstStructure *yuvst, *rgbst, *grayst;
/* We know there's only one structure since we're given simple caps */
caps = gst_caps_copy (caps);
for (i = 0; i < gst_caps_get_size (caps); i++) {
structure = gst_caps_get_structure (caps, i);
yuvst = gst_caps_get_structure (caps, 0);
gst_structure_set_name (structure, "video/x-raw-yuv");
gst_structure_remove_fields (structure, "format", "endianness", "depth",
"bpp", "red_mask", "green_mask", "blue_mask", "alpha_mask",
"palette_data", NULL);
}
gst_structure_set_name (yuvst, "video/x-raw-yuv");
gst_structure_remove_fields (yuvst, "format", "endianness", "depth",
"bpp", "red_mask", "green_mask", "blue_mask", "alpha_mask",
"palette_data", NULL);
gst_caps_do_simplify (caps);
rgbcaps = gst_caps_copy (caps);
rgbst = gst_structure_copy (yuvst);
gst_structure_set_name (rgbst, "video/x-raw-rgb");
for (i = 0; i < gst_caps_get_size (rgbcaps); i++) {
structure = gst_caps_get_structure (rgbcaps, i);
grayst = gst_structure_copy (rgbst);
gst_structure_set_name (grayst, "video/x-raw-gray");
gst_structure_set_name (structure, "video/x-raw-rgb");
}
graycaps = gst_caps_copy (caps);
for (i = 0; i < gst_caps_get_size (graycaps); i++) {
structure = gst_caps_get_structure (graycaps, i);
gst_structure_set_name (structure, "video/x-raw-gray");
}
gst_caps_append (caps, graycaps);
gst_caps_append (caps, rgbcaps);
gst_caps_append_structure (caps, rgbst);
gst_caps_append_structure (caps, grayst);
return caps;
}