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Code Issues Releases Activity

lavc/hevc_ps: fix crop info for monochrome

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The values of SubWidthC and SubHeightC are 1 in the ITU-T H.265. The
current code use the value of 2.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
Zhao Zhili 2018-08-22 17:37:15 +08:00 committed by James Almer
parent 5ecd580953
commit 70d2bab80b
3 changed files with 23 additions and 4 deletions
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16
libavcodec/hevc_ps.c
View File

@ -70,6 +70,14 @@ static const AVRational vui_sar[] = {
{ 2, 1 },
};
static const uint8_t hevc_sub_width_c[] = {
1, 2, 2, 1
};
static const uint8_t hevc_sub_height_c[] = {
1, 2, 1, 1
};
static void remove_pps(HEVCParamSets *s, int id)
{
if (s->pps_list[id] && s->pps == (const HEVCPPS*)s->pps_list[id]->data)
@ -628,8 +636,8 @@ static void decode_vui(GetBitContext *gb, AVCodecContext *avctx,
vui->default_display_window_flag = get_bits1(gb);
if (vui->default_display_window_flag) {
int vert_mult = 1 + (sps->chroma_format_idc < 2);
int horiz_mult = 1 + (sps->chroma_format_idc < 3);
int vert_mult = hevc_sub_height_c[sps->chroma_format_idc];
int horiz_mult = hevc_sub_width_c[sps->chroma_format_idc];
vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * horiz_mult;
vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * horiz_mult;
vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * vert_mult;
@ -923,8 +931,8 @@ int ff_hevc_parse_sps(HEVCSPS *sps, GetBitContext *gb, unsigned int *sps_id,
return ret;
if (get_bits1(gb)) { // pic_conformance_flag
int vert_mult = 1 + (sps->chroma_format_idc < 2);
int horiz_mult = 1 + (sps->chroma_format_idc < 3);
int vert_mult = hevc_sub_height_c[sps->chroma_format_idc];
int horiz_mult = hevc_sub_width_c[sps->chroma_format_idc];
sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * horiz_mult;
sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * horiz_mult;
sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * vert_mult;

3
tests/fate/hevc.mak
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@ -250,6 +250,9 @@ FATE_HEVC-$(call DEMDEC, MOV, HEVC) += fate-hevc-extradata-reload
fate-hevc-extradata-reload: CMD = framemd5 -i $(TARGET_SAMPLES)/hevc/extradata-reload-multi-stsd.mov -sws_flags bitexact
fate-hevc-monochrome-crop: CMD = probeframes -show_entries frame=width,height:stream=width,height $(TARGET_SAMPLES)/hevc/hevc-monochrome.hevc
FATE_HEVC_FFPROBE-$(call DEMDEC, HEVC, HEVC) += fate-hevc-monochrome-crop
FATE_SAMPLES_AVCONV += $(FATE_HEVC-yes)
FATE_SAMPLES_FFPROBE += $(FATE_HEVC_FFPROBE-yes)

8
tests/ref/fate/hevc-monochrome-crop Normal file
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@ -0,0 +1,8 @@
[FRAME]
width=384
height=240
[/FRAME]
[STREAM]
width=384
height=240
[/STREAM]