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vtdec: Fix divide by zero in the picture buffer length calculation

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Sebastian Dröge 2014-11-20 09:41:43 +01:00
parent 47f3a1954e
commit 6e2e8ec0ac
1 changed files with 5 additions and 2 deletions
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7
sys/applemedia/vtdec.c
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@ -726,8 +726,8 @@ compute_h264_decode_picture_buffer_length (GstVtdec * vtdec,
int dpb_mb_size = 16; int dpb_mb_size = 16;
int max_dpb_size_frames = 16; int max_dpb_size_frames = 16;
int max_dpb_mb_s = -1; int max_dpb_mb_s = -1;
int width_in_mb_s = vtdec->video_info.width / dpb_mb_size; int width_in_mb_s = GST_ROUND_UP_16 (vtdec->video_info.width) / dpb_mb_size;
int height_in_mb_s = vtdec->video_info.height / dpb_mb_size; int height_in_mb_s = GST_ROUND_UP_16 (vtdec->video_info.height) / dpb_mb_size;
*length = 0; *length = 0;
@ -735,6 +735,9 @@ compute_h264_decode_picture_buffer_length (GstVtdec * vtdec,
&profile, &level)) &profile, &level))
return FALSE; return FALSE;
if (vtdec->video_info.width == 0 || vtdec->video_info.height == 0)
return FALSE;
max_dpb_mb_s = get_dpb_max_mb_s_from_level (vtdec, level); max_dpb_mb_s = get_dpb_max_mb_s_from_level (vtdec, level);
if (max_dpb_mb_s == -1) { if (max_dpb_mb_s == -1) {
GST_ELEMENT_ERROR (vtdec, STREAM, DECODE, (NULL), GST_ELEMENT_ERROR (vtdec, STREAM, DECODE, (NULL),