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theoradec: 444 support.

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This commit is contained in:
Michael Smith 2009-04-27 21:39:01 -07:00
parent 62b571b93b
commit c94a36bff4
1 changed files with 49 additions and 2 deletions
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51
ext/theora/theoradec.c
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@ -1115,6 +1115,55 @@ theora_dec_push_reverse (GstTheoraDec * dec, GstBuffer * buf)
return result; return result;
} }
/* Allocate buffer and copy image data into Y444 format */
static GstFlowReturn
theora_handle_444_image (GstTheoraDec * dec, yuv_buffer * yuv, GstBuffer ** out)
{
gint width = dec->width;
gint height = dec->height;
gint out_size;
gint stride;
GstFlowReturn result;
int i, plane;
stride = GST_ROUND_UP_4 (width);
out_size = stride * height * 3;
/* now copy over the area contained in offset_x,offset_y,
* frame_width, frame_height */
result =
gst_pad_alloc_buffer_and_set_caps (dec->srcpad, GST_BUFFER_OFFSET_NONE,
out_size, GST_PAD_CAPS (dec->srcpad), out);
if (G_UNLIKELY (result != GST_FLOW_OK))
goto no_buffer;
{
guchar *dest, *src;
for (plane = 0; plane < 3; plane++) {
dest = GST_BUFFER_DATA (*out) + plane * stride * height;
src = (plane == 0 ? yuv->y : (plane == 1 ? yuv->u : yuv->v)) +
dec->offset_x + dec->offset_y * yuv->y_stride;
for (i = 0; i < height; i++) {
memcpy (dest, src, width);
dest += stride;
src += yuv->y_stride;
}
}
}
no_buffer:
{
GST_DEBUG_OBJECT (dec, "could not get buffer, reason: %s",
gst_flow_get_name (result));
return result;
}
}
/* Allocate buffer and copy image data into YUY2 format */ /* Allocate buffer and copy image data into YUY2 format */
static GstFlowReturn static GstFlowReturn
theora_handle_422_image (GstTheoraDec * dec, yuv_buffer * yuv, GstBuffer ** out) theora_handle_422_image (GstTheoraDec * dec, yuv_buffer * yuv, GstBuffer ** out)
@ -1341,12 +1390,10 @@ theora_handle_data_packet (GstTheoraDec * dec, ogg_packet * packet,
result = theora_handle_420_image (dec, &yuv, &out); result = theora_handle_420_image (dec, &yuv, &out);
} else if (dec->info.pixelformat == OC_PF_422) { } else if (dec->info.pixelformat == OC_PF_422) {
result = theora_handle_422_image (dec, &yuv, &out); result = theora_handle_422_image (dec, &yuv, &out);
#if 0
} else if (dec->info.pixelformat == OC_PF_444) { } else if (dec->info.pixelformat == OC_PF_444) {
result = theora_handle_444_image (dec, &yuv, &out); result = theora_handle_444_image (dec, &yuv, &out);
} else { } else {
g_assert_not_reached (); g_assert_not_reached ();
#endif
} }
if (result != GST_FLOW_OK) if (result != GST_FLOW_OK)