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h264: fix MMCO-based reference picture marking process.

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Fix adaptive memory control decoded reference picture marking process
implementation for operations 2 to 6, thus also fixing support for
long-term reference pictures.
This commit is contained in:
Gwenole Beauchesne 2012-10-22 11:52:13 +02:00
parent 04bbd8cc11
commit d9b5e47585
1 changed files with 83 additions and 21 deletions
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104
gst-libs/gst/vaapi/gstvaapidecoder_h264.c
View file

@ -1296,10 +1296,16 @@ remove_reference_at(
)
{
guint num_pictures = *picture_count;
GstVaapiPictureH264 *picture;
g_return_val_if_fail(index < num_pictures, FALSE);
GST_VAAPI_PICTURE_FLAG_UNSET(pictures[index], GST_VAAPI_PICTURE_FLAG_REFERENCE);
picture = pictures[index];
GST_VAAPI_PICTURE_FLAG_UNSET(picture, GST_VAAPI_PICTURE_FLAG_REFERENCE);
picture->is_long_term = FALSE;
picture->info.flags &= ~(VA_PICTURE_H264_SHORT_TERM_REFERENCE |
VA_PICTURE_H264_LONG_TERM_REFERENCE);
if (index != --num_pictures)
gst_vaapi_picture_replace(&pictures[index], pictures[num_pictures]);
gst_vaapi_picture_replace(&pictures[num_pictures], NULL);
@ -1608,22 +1614,10 @@ init_picture(
for (i = 0; i < dec_ref_pic_marking->n_ref_pic_marking; i++) {
GstH264RefPicMarking * const ref_pic_marking =
&dec_ref_pic_marking->ref_pic_marking[i];
switch (ref_pic_marking->memory_management_control_operation) {
case 3:
case 6:
picture->is_long_term = TRUE;
pic->frame_idx = ref_pic_marking->long_term_frame_idx;
break;
case 5:
if (ref_pic_marking->memory_management_control_operation == 5)
picture->has_mmco_5 = TRUE;
break;
}
}
}
if (picture->is_long_term)
pic->flags |= VA_PICTURE_H264_LONG_TERM_REFERENCE;
else
pic->flags |= VA_PICTURE_H264_SHORT_TERM_REFERENCE;
}
init_picture_poc(decoder, picture, slice_hdr);
@ -1713,7 +1707,7 @@ exec_ref_pic_marking_adaptive_mmco_2(
GstVaapiDecoderH264Private * const priv = decoder->priv;
gint32 i;
i = find_long_term_reference(decoder, picture->long_term_pic_num);
i = find_long_term_reference(decoder, ref_pic_marking->long_term_pic_num);
if (i < 0)
return;
remove_reference_at(decoder, priv->long_ref, &priv->long_ref_count, i);
@ -1727,12 +1721,55 @@ exec_ref_pic_marking_adaptive_mmco_3(
GstH264RefPicMarking *ref_pic_marking
)
{
GstVaapiDecoderH264Private * const priv = decoder->priv;
VAPictureH264 *pic;
gint32 i, picNumX;
for (i = 0; i < priv->long_ref_count; i++) {
if (priv->long_ref[i]->info.frame_idx == ref_pic_marking->long_term_frame_idx)
break;
}
if (i != priv->long_ref_count)
remove_reference_at(decoder, priv->long_ref, &priv->long_ref_count, i);
picNumX = get_picNumX(picture, ref_pic_marking);
i = find_short_term_reference(decoder, picNumX);
if (i < 0)
return;
picture = gst_vaapi_picture_ref(priv->short_ref[i]);
remove_reference_at(decoder, priv->short_ref, &priv->short_ref_count, i);
gst_vaapi_picture_replace(&priv->long_ref[priv->long_ref_count++], picture);
gst_vaapi_picture_unref(picture);
picture->is_long_term = TRUE;
pic = &picture->info;
pic->frame_idx = ref_pic_marking->long_term_frame_idx;
pic->flags &= ~VA_PICTURE_H264_SHORT_TERM_REFERENCE;
pic->flags |= VA_PICTURE_H264_LONG_TERM_REFERENCE;
GST_VAAPI_PICTURE_FLAG_SET(picture, GST_VAAPI_PICTURE_FLAG_REFERENCE);
}
/* 8.2.5.4.4. Mark pictures with LongTermFramIdx > max_long_term_frame_idx
* as "unused for reference" */
static void
exec_ref_pic_marking_adaptive_mmco_4(
GstVaapiDecoderH264 *decoder,
GstVaapiPictureH264 *picture,
GstH264RefPicMarking *ref_pic_marking
)
{
GstVaapiDecoderH264Private * const priv = decoder->priv;
gint32 i, long_term_frame_idx;
long_term_frame_idx = ref_pic_marking->max_long_term_frame_idx_plus1 - 1;
for (i = 0; i < priv->long_ref_count; i++) {
if ((gint32)priv->long_ref[i]->info.frame_idx <= long_term_frame_idx)
continue;
remove_reference_at(decoder, priv->long_ref, &priv->long_ref_count, i);
i--;
}
}
/* 8.2.5.4.5. Mark all reference pictures as "unused for reference" */
@ -1747,6 +1784,23 @@ exec_ref_pic_marking_adaptive_mmco_5(
clear_references(decoder, priv->short_ref, &priv->short_ref_count);
clear_references(decoder, priv->long_ref, &priv->long_ref_count );
dpb_flush(decoder);
/* The picture shall be inferred to have had frame_num equal to 0 (7.4.3) */
picture->frame_num = 0;
picture->poc = 0;
}
/* 8.2.5.4.6. Assign a long-term frame index to the current picture */
static void
exec_ref_pic_marking_adaptive_mmco_6(
GstVaapiDecoderH264 *decoder,
GstVaapiPictureH264 *picture,
GstH264RefPicMarking *ref_pic_marking
)
{
picture->is_long_term = TRUE;
picture->info.frame_idx = ref_pic_marking->long_term_frame_idx;
}
/* 8.2.5.4. Adaptive memory control decoded reference picture marking process */
@ -1772,8 +1826,9 @@ exec_ref_pic_marking_adaptive(
exec_ref_pic_marking_adaptive_mmco_1,
exec_ref_pic_marking_adaptive_mmco_2,
exec_ref_pic_marking_adaptive_mmco_3,
NULL,
exec_ref_pic_marking_adaptive_mmco_4,
exec_ref_pic_marking_adaptive_mmco_5,
exec_ref_pic_marking_adaptive_mmco_6,
};
for (i = 0; i < dec_ref_pic_marking->n_ref_pic_marking; i++) {
@ -1814,10 +1869,14 @@ exec_ref_pic_marking(GstVaapiDecoderH264 *decoder, GstVaapiPictureH264 *picture)
}
}
if (picture->is_long_term)
if (picture->is_long_term) {
picture_ptr = &priv->long_ref[priv->long_ref_count++];
else
picture->info.flags |= VA_PICTURE_H264_LONG_TERM_REFERENCE;
}
else {
picture_ptr = &priv->short_ref[priv->short_ref_count++];
picture->info.flags |= VA_PICTURE_H264_SHORT_TERM_REFERENCE;
}
gst_vaapi_picture_replace(picture_ptr, picture);
return TRUE;
}
@ -1847,11 +1906,14 @@ exit_picture_poc(GstVaapiDecoderH264 *decoder, GstVaapiPictureH264 *picture)
break;
case 1:
case 2:
priv->prev_frame_num = priv->frame_num;
if (picture->has_mmco_5)
if (picture->has_mmco_5) {
priv->prev_frame_num = 0;
priv->prev_frame_num_offset = 0;
else
}
else {
priv->prev_frame_num = priv->frame_num;
priv->prev_frame_num_offset = priv->frame_num_offset;
}
break;
}
}