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dpb: mpeg2: cosmetics.

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Define MAX_MPEG2_REFERENCES to 2 and avoid magic numbers all around.
This commit is contained in:
Gwenole Beauchesne 2012-04-12 11:00:22 +02:00
parent 75e8a7d6f8
commit 687b482895
1 changed files with 7 additions and 3 deletions
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10
gst-libs/gst/vaapi/gstvaapidecoder_dpb.c
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@ -250,6 +250,9 @@ gst_vaapi_dpb_size(GstVaapiDpb *dpb)
/* --- MPEG-2 Decoded Picture Buffer --- */
/* ------------------------------------------------------------------------- */
/* At most two reference pictures for MPEG-2 */
#define MAX_MPEG2_REFERENCES 2
G_DEFINE_TYPE(GstVaapiDpbMpeg2, gst_vaapi_dpb_mpeg2, GST_VAAPI_TYPE_DPB)
static gboolean
@ -268,7 +271,7 @@ gst_vaapi_dpb_mpeg2_add(GstVaapiDpb *dpb, GstVaapiPicture *picture)
* - ... thus causing older reference pictures to be output, if not already
* - the oldest reference picture is replaced with the new reference picture
*/
if (G_LIKELY(dpb->num_pictures == 2)) {
if (G_LIKELY(dpb->num_pictures == MAX_MPEG2_REFERENCES)) {
index = (dpb->pictures[0]->poc > dpb->pictures[1]->poc);
ref_picture = dpb->pictures[index];
if (!GST_VAAPI_PICTURE_IS_OUTPUT(ref_picture)) {
@ -302,7 +305,7 @@ gst_vaapi_dpb_mpeg2_class_init(GstVaapiDpbMpeg2Class *klass)
GstVaapiDpb *
gst_vaapi_dpb_mpeg2_new(void)
{
return dpb_new(GST_VAAPI_TYPE_DPB_MPEG2, 2);
return dpb_new(GST_VAAPI_TYPE_DPB_MPEG2, MAX_MPEG2_REFERENCES);
}
void
@ -313,7 +316,8 @@ gst_vaapi_dpb_mpeg2_get_references(
GstVaapiPicture **next_picture_ptr
)
{
GstVaapiPicture **picture_ptr, *ref_picture, *ref_pictures[2];
GstVaapiPicture *ref_picture, *ref_pictures[MAX_MPEG2_REFERENCES];
GstVaapiPicture **picture_ptr;
guint i, index;
g_return_if_fail(GST_VAAPI_IS_DPB_MPEG2(dpb));