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theora: Split yuv_buffer creation into its own function

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Benjamin Otte 2009-09-04 16:59:49 +02:00 committed by Sebastian Dröge
parent c1ead16f71
commit bac05fbf6f
1 changed files with 19 additions and 17 deletions
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36
ext/theora/theoraenc.c
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@ -752,6 +752,23 @@ theora_enc_is_discontinuous (GstTheoraEnc * enc, GstClockTime timestamp,
return ret; return ret;
} }
static void
theora_enc_init_yuv_buffer (yuv_buffer * yuv,
guint8 * data, gint width, gint height)
{
yuv->y_width = width;
yuv->y_height = height;
yuv->y_stride = GST_ROUND_UP_4 (width);
yuv->uv_width = width / 2;
yuv->uv_height = height / 2;
yuv->uv_stride = GST_ROUND_UP_8 (width) / 2;
yuv->y = data;
yuv->u = yuv->y + GST_ROUND_UP_2 (height) * yuv->y_stride;
yuv->v = yuv->u + GST_ROUND_UP_2 (height) / 2 * yuv->uv_stride;
}
static GstBuffer * static GstBuffer *
theora_enc_resize_buffer (GstTheoraEnc * enc, GstBuffer * buffer) theora_enc_resize_buffer (GstTheoraEnc * enc, GstBuffer * buffer)
{ {
@ -1044,28 +1061,13 @@ theora_enc_chain (GstPad * pad, GstBuffer * buffer)
{ {
yuv_buffer yuv; yuv_buffer yuv;
gint res; gint res;
gint y_size;
guint8 *pixels;
yuv.y_width = enc->info_width;
yuv.y_height = enc->info_height;
yuv.y_stride = enc->info_width;
yuv.uv_width = enc->info_width / 2;
yuv.uv_height = enc->info_height / 2;
yuv.uv_stride = yuv.uv_width;
y_size = enc->info_width * enc->info_height;
buffer = theora_enc_resize_buffer (enc, buffer); buffer = theora_enc_resize_buffer (enc, buffer);
if (buffer == NULL) if (buffer == NULL)
return GST_FLOW_ERROR; return GST_FLOW_ERROR;
pixels = GST_BUFFER_DATA (buffer); theora_enc_init_yuv_buffer (&yuv, GST_BUFFER_DATA (buffer), enc->info_width,
enc->info_height);
yuv.y = pixels;
yuv.u = yuv.y + y_size;
yuv.v = yuv.u + y_size / 4;
if (theora_enc_is_discontinuous (enc, running_time, duration)) { if (theora_enc_is_discontinuous (enc, running_time, duration)) {
theora_enc_reset (enc); theora_enc_reset (enc);