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reset segement map on key frame

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This is to fix a decoder crash when decoder skips a number of frame to
continue decoding from a later key frame.

Change-Id: I3ba116eba6c3440e0528a21f53745f694302e4ad
This commit is contained in:
Yaowu Xu 2012-12-13 23:53:11 -08:00
parent 08e207ad04
commit c14439c3d3
2 changed files with 10 additions and 2 deletions
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9
vp9/decoder/vp9_decodframe.c
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@ -40,7 +40,7 @@
#define COEFCOUNT_TESTING
// #define DEC_DEBUG
//#define DEC_DEBUG
#ifdef DEC_DEBUG
int dec_debug = 0;
#endif
@ -1311,7 +1311,10 @@ static void init_frame(VP9D_COMP *pbi) {
MACROBLOCKD *const xd = &pbi->mb;
if (pc->frame_type == KEY_FRAME) {
/* Various keyframe initializations */
if (pc->last_frame_seg_map)
vpx_memset(pc->last_frame_seg_map, 0, (pc->mb_rows * pc->mb_cols));
vp9_init_mv_probs(pc);
vp9_init_mbmode_probs(pc);
@ -1354,6 +1357,7 @@ static void init_frame(VP9D_COMP *pbi) {
vp9_update_mode_info_border(pc, pc->mip);
vp9_update_mode_info_in_image(pc, pc->mi);
} else {
if (!pc->use_bilinear_mc_filter)
@ -1600,6 +1604,7 @@ int vp9_decode_frame(VP9D_COMP *pbi, const unsigned char **p_data_end) {
pc->ref_pred_probs[0] = 120;
pc->ref_pred_probs[1] = 80;
pc->ref_pred_probs[2] = 40;
} else {
for (i = 0; i < PREDICTION_PROBS; i++) {
if (vp9_read_bit(&header_bc))

3
vp9/encoder/vp9_ratectrl.c
View File

@ -255,6 +255,9 @@ void vp9_setup_key_frame(VP9_COMP *cpi) {
vp9_init_mbmode_probs(& cpi->common);
vp9_default_bmode_probs(cm->fc.bmode_prob);
if(cm->last_frame_seg_map)
vpx_memset(cm->last_frame_seg_map, 0, (cm->mb_rows * cm->mb_cols));
vp9_init_mv_probs(& cpi->common);
// cpi->common.filter_level = 0; // Reset every key frame.