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more detailed error messages

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Originally committed as revision 3871 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2005-01-23 17:59:01 +00:00
parent 9b21f0561b
commit 884182b383
1 changed files with 28 additions and 9 deletions
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37
libavcodec/svq3.c
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@ -370,6 +370,7 @@ static inline int svq3_mc_dir (H264Context *h, int size, int mode, int dir, int
dx = svq3_get_se_golomb (&s->gb);
if (dx == INVALID_VLC || dy == INVALID_VLC) {
av_log(h->s.avctx, AV_LOG_ERROR, "invalid MV vlc\n");
return -1;
}
}
@ -564,8 +565,10 @@ static int svq3_decode_mb (H264Context *h, unsigned int mb_type) {
for (i=0; i < 16; i+=2) {
vlc = svq3_get_ue_golomb (&s->gb);
if (vlc >= 25)
if (vlc >= 25){
av_log(h->s.avctx, AV_LOG_ERROR, "luma prediction:%d\n", vlc);
return -1;
}
left = &h->intra4x4_pred_mode_cache[scan8[i] - 1];
top = &h->intra4x4_pred_mode_cache[scan8[i] - 8];
@ -573,8 +576,10 @@ static int svq3_decode_mb (H264Context *h, unsigned int mb_type) {
left[1] = svq3_pred_1[top[0] + 1][left[0] + 1][svq3_pred_0[vlc][0]];
left[2] = svq3_pred_1[top[1] + 1][left[1] + 1][svq3_pred_0[vlc][1]];
if (left[1] == -1 || left[2] == -1)
if (left[1] == -1 || left[2] == -1){
av_log(h->s.avctx, AV_LOG_ERROR, "weird prediction\n");
return -1;
}
}
} else { /* mb_type == 33, DC_128_PRED block type */
for (i=0; i < 4; i++) {
@ -603,8 +608,10 @@ static int svq3_decode_mb (H264Context *h, unsigned int mb_type) {
dir = i_mb_type_info[mb_type - 8].pred_mode;
dir = (dir >> 1) ^ 3*(dir & 1) ^ 1;
if ((h->intra16x16_pred_mode = check_intra_pred_mode (h, dir)) == -1)
if ((h->intra16x16_pred_mode = check_intra_pred_mode (h, dir)) == -1){
av_log(h->s.avctx, AV_LOG_ERROR, "check_intra_pred_mode = -1\n");
return -1;
}
cbp = i_mb_type_info[mb_type - 8].cbp;
mb_type = MB_TYPE_INTRA16x16;
@ -629,20 +636,26 @@ static int svq3_decode_mb (H264Context *h, unsigned int mb_type) {
}
if (!IS_INTRA16x16(mb_type) && (!IS_SKIP(mb_type) || s->pict_type == B_TYPE)) {
if ((vlc = svq3_get_ue_golomb (&s->gb)) >= 48)
if ((vlc = svq3_get_ue_golomb (&s->gb)) >= 48){
av_log(h->s.avctx, AV_LOG_ERROR, "cbp_vlc=%d\n", vlc);
return -1;
}
cbp = IS_INTRA(mb_type) ? golomb_to_intra4x4_cbp[vlc] : golomb_to_inter_cbp[vlc];
}
if (IS_INTRA16x16(mb_type) || (s->pict_type != I_TYPE && s->adaptive_quant && cbp)) {
s->qscale += svq3_get_se_golomb (&s->gb);
if (s->qscale > 31)
if (s->qscale > 31){
av_log(h->s.avctx, AV_LOG_ERROR, "qscale:%d\n", s->qscale);
return -1;
}
}
if (IS_INTRA16x16(mb_type)) {
if (svq3_decode_block (&s->gb, h->mb, 0, 0))
if (svq3_decode_block (&s->gb, h->mb, 0, 0)){
av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding intra luma dc\n");
return -1;
}
}
if (cbp) {
@ -655,24 +668,30 @@ static int svq3_decode_mb (H264Context *h, unsigned int mb_type) {
k = index ? ((j&1) + 2*(i&1) + 2*(j&2) + 4*(i&2)) : (4*i + j);
h->non_zero_count_cache[ scan8[k] ] = 1;
if (svq3_decode_block (&s->gb, &h->mb[16*k], index, type))
if (svq3_decode_block (&s->gb, &h->mb[16*k], index, type)){
av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding block\n");
return -1;
}
}
}
}
if ((cbp & 0x30)) {
for (i=0; i < 2; ++i) {
if (svq3_decode_block (&s->gb, &h->mb[16*(16 + 4*i)], 0, 3))
if (svq3_decode_block (&s->gb, &h->mb[16*(16 + 4*i)], 0, 3)){
av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding chroma dc block\n");
return -1;
}
}
if ((cbp & 0x20)) {
for (i=0; i < 8; i++) {
h->non_zero_count_cache[ scan8[16+i] ] = 1;
if (svq3_decode_block (&s->gb, &h->mb[16*(16 + i)], 1, 1))
if (svq3_decode_block (&s->gb, &h->mb[16*(16 + i)], 1, 1)){
av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding chroma ac block\n");
return -1;
}
}
}
}