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h264dec: Fix POC calculation for type 0

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This is mostly for future use as it only fixes the caclulation for interlaced
cases, the case of frame seemed correct already.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1812>
This commit is contained in:
Nicolas Dufresne 2020-11-05 18:09:06 -05:00 committed by Seungha Yang
parent 11509fded1
commit 4ee6167616
1 changed files with 14 additions and 8 deletions
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22
gst-libs/gst/codecs/gsth264decoder.c
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@ -1229,15 +1229,21 @@ gst_h264_decoder_calculate_poc (GstH264Decoder * self, GstH264Picture * picture)
picture->pic_order_cnt_msb + picture->pic_order_cnt_lsb;
}
if (picture->field != GST_H264_PICTURE_FIELD_TOP_FIELD) {
if (GST_H264_PICTURE_IS_FRAME (picture)) {
picture->bottom_field_order_cnt =
picture->top_field_order_cnt +
switch (picture->field) {
case GST_H264_PICTURE_FIELD_FRAME:
picture->top_field_order_cnt = picture->pic_order_cnt_msb +
picture->pic_order_cnt_lsb;
picture->bottom_field_order_cnt = picture->top_field_order_cnt +
picture->delta_pic_order_cnt_bottom;
} else {
picture->bottom_field_order_cnt =
picture->pic_order_cnt_msb + picture->pic_order_cnt_lsb;
}
break;
case GST_H264_PICTURE_FIELD_TOP_FIELD:
picture->top_field_order_cnt = picture->pic_order_cnt_msb +
picture->pic_order_cnt_lsb;
break;
case GST_H264_PICTURE_FIELD_BOTTOM_FIELD:
picture->bottom_field_order_cnt = picture->pic_order_cnt_msb +
picture->pic_order_cnt_lsb;
break;
}
break;
}