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h264: add picture structure for reference picture marking process.

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Introduce new `structure' field to the H.264 specific picture structure
so that to simplify the reference picture marking process. That local
picture structure is derived from the original picture structure, as
defined by the syntax elements field_pic_flag and bottom_field_flag.
This commit is contained in:
Gwenole Beauchesne 2012-11-13 14:04:31 +01:00
parent bbbf3741ff
commit e530c57741
1 changed files with 16 additions and 13 deletions
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29
gst-libs/gst/vaapi/gstvaapidecoder_h264.c
View file

@ -121,6 +121,7 @@ enum {
struct _GstVaapiPictureH264 {
GstVaapiPicture base;
GstH264PPS *pps;
guint structure;
gint32 field_poc[2];
gint32 frame_num; // Original frame_num from slice_header()
gint32 frame_num_wrap; // Temporary for ref pic marking: FrameNumWrap
@ -370,7 +371,7 @@ gst_vaapi_frame_store_new(GstVaapiPictureH264 *picture)
if (!fs)
return NULL;
fs->structure = picture->base.structure;
fs->structure = picture->structure;
fs->buffers[0] = gst_vaapi_picture_ref(picture);
fs->num_buffers = 1;
fs->output_needed = picture->output_needed;
@ -1111,7 +1112,7 @@ init_picture_poc_0(
priv->poc_msb = priv->prev_poc_msb;
temp_poc = priv->poc_msb + priv->poc_lsb;
switch (picture->base.structure) {
switch (picture->structure) {
case GST_VAAPI_PICTURE_STRUCTURE_FRAME:
// (8-4, 8-5)
priv->field_poc[TOP_FIELD] = temp_poc;
@ -1192,7 +1193,7 @@ init_picture_poc_1(
expected_poc += sps->offset_for_non_ref_pic;
// (8-10)
switch (picture->base.structure) {
switch (picture->structure) {
case GST_VAAPI_PICTURE_STRUCTURE_FRAME:
priv->field_poc[TOP_FIELD] = expected_poc +
slice_hdr->delta_pic_order_cnt[0];
@ -1250,9 +1251,9 @@ init_picture_poc_2(
temp_poc = 2 * (priv->frame_num_offset + priv->frame_num);
// (8-13)
if (picture->base.structure != GST_VAAPI_PICTURE_STRUCTURE_BOTTOM_FIELD)
if (picture->structure != GST_VAAPI_PICTURE_STRUCTURE_BOTTOM_FIELD)
priv->field_poc[TOP_FIELD] = temp_poc;
if (picture->base.structure != GST_VAAPI_PICTURE_STRUCTURE_TOP_FIELD)
if (picture->structure != GST_VAAPI_PICTURE_STRUCTURE_TOP_FIELD)
priv->field_poc[BOTTOM_FIELD] = temp_poc;
}
@ -1280,9 +1281,9 @@ init_picture_poc(
break;
}
if (picture->base.structure != GST_VAAPI_PICTURE_STRUCTURE_BOTTOM_FIELD)
if (picture->structure != GST_VAAPI_PICTURE_STRUCTURE_BOTTOM_FIELD)
picture->field_poc[TOP_FIELD] = priv->field_poc[TOP_FIELD];
if (picture->base.structure != GST_VAAPI_PICTURE_STRUCTURE_TOP_FIELD)
if (picture->structure != GST_VAAPI_PICTURE_STRUCTURE_TOP_FIELD)
picture->field_poc[BOTTOM_FIELD] = priv->field_poc[BOTTOM_FIELD];
picture->base.poc = MIN(picture->field_poc[0], picture->field_poc[1]);
}
@ -1370,7 +1371,7 @@ init_picture_refs_pic_num(
if (GST_VAAPI_PICTURE_IS_FRAME(picture))
pic->pic_num = pic->frame_num_wrap;
else {
if (pic->base.structure == picture->base.structure)
if (pic->structure == picture->structure)
pic->pic_num = 2 * pic->frame_num_wrap + 1;
else
pic->pic_num = 2 * pic->frame_num_wrap;
@ -1384,7 +1385,7 @@ init_picture_refs_pic_num(
if (GST_VAAPI_PICTURE_IS_FRAME(picture))
pic->long_term_pic_num = pic->long_term_frame_idx;
else {
if (pic->base.structure == picture->base.structure)
if (pic->structure == picture->structure)
pic->long_term_pic_num = 2 * pic->long_term_frame_idx + 1;
else
pic->long_term_pic_num = 2 * pic->long_term_frame_idx;
@ -1822,6 +1823,7 @@ init_picture_ref_lists(GstVaapiDecoderH264 *decoder)
priv->short_ref[short_ref_count++] = picture;
else if (GST_VAAPI_PICTURE_IS_LONG_TERM_REFERENCE(picture))
priv->long_ref[long_ref_count++] = picture;
picture->structure = GST_VAAPI_PICTURE_STRUCTURE_FRAME;
}
}
@ -1936,6 +1938,7 @@ init_picture(
base_picture->structure = GST_VAAPI_PICTURE_STRUCTURE_TOP_FIELD;
else
base_picture->structure = GST_VAAPI_PICTURE_STRUCTURE_BOTTOM_FIELD;
picture->structure = base_picture->structure;
/* Initialize reference flags */
if (nalu->ref_idc) {
@ -2116,9 +2119,9 @@ exec_ref_pic_marking_adaptive_mmco_5(
picture->frame_num = 0;
/* Update TopFieldOrderCnt and BottomFieldOrderCnt (8.2.1) */
if (picture->base.structure != GST_VAAPI_PICTURE_STRUCTURE_BOTTOM_FIELD)
if (picture->structure != GST_VAAPI_PICTURE_STRUCTURE_BOTTOM_FIELD)
picture->field_poc[TOP_FIELD] -= picture->base.poc;
if (picture->base.structure != GST_VAAPI_PICTURE_STRUCTURE_TOP_FIELD)
if (picture->structure != GST_VAAPI_PICTURE_STRUCTURE_TOP_FIELD)
picture->field_poc[BOTTOM_FIELD] -= picture->base.poc;
picture->base.poc = 0;
}
@ -2186,7 +2189,7 @@ exec_ref_pic_marking(GstVaapiDecoderH264 *decoder, GstVaapiPictureH264 *picture)
GstVaapiDecoderH264Private * const priv = decoder->priv;
priv->prev_pic_has_mmco5 = FALSE;
priv->prev_pic_structure = picture->base.structure;
priv->prev_pic_structure = picture->structure;
if (!GST_VAAPI_PICTURE_IS_REFERENCE(picture))
return TRUE;
@ -2234,7 +2237,7 @@ vaapi_fill_picture(VAPictureH264 *pic, GstVaapiPictureH264 *picture)
pic->frame_idx = picture->frame_num;
}
switch (picture->base.structure) {
switch (picture->structure) {
case GST_VAAPI_PICTURE_STRUCTURE_FRAME:
pic->TopFieldOrderCnt = picture->field_poc[TOP_FIELD];
pic->BottomFieldOrderCnt = picture->field_poc[BOTTOM_FIELD];