[FFmpeg-cvslog] Merge commit 'ecc31f6b086453ab9811dce2ae5ceb6a7c19e4ad'
Derek Buitenhuis
git at videolan.org
Wed Apr 27 17:34:55 CEST 2016
ffmpeg | branch: master | Derek Buitenhuis <derek.buitenhuis at gmail.com> | Wed Apr 27 16:34:40 2016 +0100| [a2922b5d614ca6db025364f47bc4a1e4812859aa] | committer: Derek Buitenhuis
Merge commit 'ecc31f6b086453ab9811dce2ae5ceb6a7c19e4ad'
* commit 'ecc31f6b086453ab9811dce2ae5ceb6a7c19e4ad':
h264: move ff_h264_check_intra[4x4]_pred_mode() to h264_parse
Merged-by: Derek Buitenhuis <derek.buitenhuis at gmail.com>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a2922b5d614ca6db025364f47bc4a1e4812859aa
---
libavcodec/Makefile | 2 +-
libavcodec/h264.c | 93 -----------------------------------------------
libavcodec/h264.h | 13 -------
libavcodec/h264_cabac.c | 10 +++--
libavcodec/h264_cavlc.c | 9 +++--
libavcodec/h264_parse.c | 92 ++++++++++++++++++++++++++++++++++++++++++++++
libavcodec/h264_parse.h | 15 ++++++++
libavcodec/svq3.c | 10 +++--
8 files changed, 128 insertions(+), 116 deletions(-)
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 4cda4dc..8f63261 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -509,7 +509,7 @@ OBJS-$(CONFIG_SUNRAST_ENCODER) += sunrastenc.o
OBJS-$(CONFIG_SVQ1_DECODER) += svq1dec.o svq1.o svq13.o h263data.o
OBJS-$(CONFIG_SVQ1_ENCODER) += svq1enc.o svq1.o h263data.o \
h263.o ituh263enc.o
-OBJS-$(CONFIG_SVQ3_DECODER) += svq3.o svq13.o mpegutils.o
+OBJS-$(CONFIG_SVQ3_DECODER) += svq3.o svq13.o mpegutils.o h264_parse.o
OBJS-$(CONFIG_TEXT_DECODER) += textdec.o ass.o
OBJS-$(CONFIG_TEXT_ENCODER) += srtenc.o ass_split.o
OBJS-$(CONFIG_TAK_DECODER) += takdec.o tak.o takdsp.o
diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index 5a0f0bb..6dbe5c7 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -132,99 +132,6 @@ void ff_h264_draw_horiz_band(const H264Context *h, H264SliceContext *sl,
}
}
-/**
- * Check if the top & left blocks are available if needed and
- * change the dc mode so it only uses the available blocks.
- */
-int ff_h264_check_intra4x4_pred_mode(const H264Context *h, H264SliceContext *sl)
-{
- static const int8_t top[12] = {
- -1, 0, LEFT_DC_PRED, -1, -1, -1, -1, -1, 0
- };
- static const int8_t left[12] = {
- 0, -1, TOP_DC_PRED, 0, -1, -1, -1, 0, -1, DC_128_PRED
- };
- int i;
-
- if (!(sl->top_samples_available & 0x8000)) {
- for (i = 0; i < 4; i++) {
- int status = top[sl->intra4x4_pred_mode_cache[scan8[0] + i]];
- if (status < 0) {
- av_log(h->avctx, AV_LOG_ERROR,
- "top block unavailable for requested intra4x4 mode %d at %d %d\n",
- status, sl->mb_x, sl->mb_y);
- return AVERROR_INVALIDDATA;
- } else if (status) {
- sl->intra4x4_pred_mode_cache[scan8[0] + i] = status;
- }
- }
- }
-
- if ((sl->left_samples_available & 0x8888) != 0x8888) {
- static const int mask[4] = { 0x8000, 0x2000, 0x80, 0x20 };
- for (i = 0; i < 4; i++)
- if (!(sl->left_samples_available & mask[i])) {
- int status = left[sl->intra4x4_pred_mode_cache[scan8[0] + 8 * i]];
- if (status < 0) {
- av_log(h->avctx, AV_LOG_ERROR,
- "left block unavailable for requested intra4x4 mode %d at %d %d\n",
- status, sl->mb_x, sl->mb_y);
- return AVERROR_INVALIDDATA;
- } else if (status) {
- sl->intra4x4_pred_mode_cache[scan8[0] + 8 * i] = status;
- }
- }
- }
-
- return 0;
-} // FIXME cleanup like ff_h264_check_intra_pred_mode
-
-/**
- * Check if the top & left blocks are available if needed and
- * change the dc mode so it only uses the available blocks.
- */
-int ff_h264_check_intra_pred_mode(const H264Context *h, H264SliceContext *sl,
- int mode, int is_chroma)
-{
- static const int8_t top[4] = { LEFT_DC_PRED8x8, 1, -1, -1 };
- static const int8_t left[5] = { TOP_DC_PRED8x8, -1, 2, -1, DC_128_PRED8x8 };
-
- if (mode > 3U) {
- av_log(h->avctx, AV_LOG_ERROR,
- "out of range intra chroma pred mode at %d %d\n",
- sl->mb_x, sl->mb_y);
- return AVERROR_INVALIDDATA;
- }
-
- if (!(sl->top_samples_available & 0x8000)) {
- mode = top[mode];
- if (mode < 0) {
- av_log(h->avctx, AV_LOG_ERROR,
- "top block unavailable for requested intra mode at %d %d\n",
- sl->mb_x, sl->mb_y);
- return AVERROR_INVALIDDATA;
- }
- }
-
- if ((sl->left_samples_available & 0x8080) != 0x8080) {
- mode = left[mode];
- if (mode < 0) {
- av_log(h->avctx, AV_LOG_ERROR,
- "left block unavailable for requested intra mode at %d %d\n",
- sl->mb_x, sl->mb_y);
- return AVERROR_INVALIDDATA;
- }
- if (is_chroma && (sl->left_samples_available & 0x8080)) {
- // mad cow disease mode, aka MBAFF + constrained_intra_pred
- mode = ALZHEIMER_DC_L0T_PRED8x8 +
- (!(sl->left_samples_available & 0x8000)) +
- 2 * (mode == DC_128_PRED8x8);
- }
- }
-
- return mode;
-}
-
const uint8_t *ff_h264_decode_nal(H264Context *h, H264SliceContext *sl,
const uint8_t *src,
int *dst_length, int *consumed, int length)
diff --git a/libavcodec/h264.h b/libavcodec/h264.h
index e655995..302f09a 100644
--- a/libavcodec/h264.h
+++ b/libavcodec/h264.h
@@ -900,19 +900,6 @@ int ff_h264_decode_ref_pic_marking(H264Context *h, GetBitContext *gb,
int ff_generate_sliding_window_mmcos(H264Context *h, int first_slice);
-/**
- * Check if the top & left blocks are available if needed & change the
- * dc mode so it only uses the available blocks.
- */
-int ff_h264_check_intra4x4_pred_mode(const H264Context *h, H264SliceContext *sl);
-
-/**
- * Check if the top & left blocks are available if needed & change the
- * dc mode so it only uses the available blocks.
- */
-int ff_h264_check_intra_pred_mode(const H264Context *h, H264SliceContext *sl,
- int mode, int is_chroma);
-
void ff_h264_hl_decode_mb(const H264Context *h, H264SliceContext *sl);
int ff_h264_decode_extradata(H264Context *h, const uint8_t *buf, int size);
int ff_h264_decode_init(AVCodecContext *avctx);
diff --git a/libavcodec/h264_cabac.c b/libavcodec/h264_cabac.c
index cb98eb5..3df0f70 100644
--- a/libavcodec/h264_cabac.c
+++ b/libavcodec/h264_cabac.c
@@ -2085,16 +2085,20 @@ decode_intra_mb:
}
}
write_back_intra_pred_mode(h, sl);
- if (ff_h264_check_intra4x4_pred_mode(h, sl) < 0 ) return -1;
+ if (ff_h264_check_intra4x4_pred_mode(sl->intra4x4_pred_mode_cache, h->avctx,
+ sl->top_samples_available, sl->left_samples_available) < 0 )
+ return -1;
} else {
- sl->intra16x16_pred_mode = ff_h264_check_intra_pred_mode(h, sl, sl->intra16x16_pred_mode, 0);
+ sl->intra16x16_pred_mode = ff_h264_check_intra_pred_mode(h->avctx, sl->top_samples_available,
+ sl->left_samples_available, sl->intra16x16_pred_mode, 0);
if (sl->intra16x16_pred_mode < 0) return -1;
}
if(decode_chroma){
h->chroma_pred_mode_table[mb_xy] =
pred_mode = decode_cabac_mb_chroma_pre_mode(h, sl);
- pred_mode= ff_h264_check_intra_pred_mode(h, sl, pred_mode, 1 );
+ pred_mode= ff_h264_check_intra_pred_mode(h->avctx, sl->top_samples_available,
+ sl->left_samples_available, pred_mode, 1 );
if( pred_mode < 0 ) return -1;
sl->chroma_pred_mode = pred_mode;
} else {
diff --git a/libavcodec/h264_cavlc.c b/libavcodec/h264_cavlc.c
index 2996cfd..be53914 100644
--- a/libavcodec/h264_cavlc.c
+++ b/libavcodec/h264_cavlc.c
@@ -825,15 +825,18 @@ decode_intra_mb:
sl->intra4x4_pred_mode_cache[scan8[i]] = mode;
}
write_back_intra_pred_mode(h, sl);
- if (ff_h264_check_intra4x4_pred_mode(h, sl) < 0)
+ if (ff_h264_check_intra4x4_pred_mode(sl->intra4x4_pred_mode_cache, h->avctx,
+ sl->top_samples_available, sl->left_samples_available) < 0)
return -1;
}else{
- sl->intra16x16_pred_mode = ff_h264_check_intra_pred_mode(h, sl, sl->intra16x16_pred_mode, 0);
+ sl->intra16x16_pred_mode = ff_h264_check_intra_pred_mode(h->avctx, sl->top_samples_available,
+ sl->left_samples_available, sl->intra16x16_pred_mode, 0);
if (sl->intra16x16_pred_mode < 0)
return -1;
}
if(decode_chroma){
- pred_mode= ff_h264_check_intra_pred_mode(h, sl, get_ue_golomb_31(&sl->gb), 1);
+ pred_mode= ff_h264_check_intra_pred_mode(h->avctx, sl->top_samples_available,
+ sl->left_samples_available, get_ue_golomb_31(&sl->gb), 1);
if(pred_mode < 0)
return -1;
sl->chroma_pred_mode = pred_mode;
diff --git a/libavcodec/h264_parse.c b/libavcodec/h264_parse.c
index ebd87b0..e6cc28e 100644
--- a/libavcodec/h264_parse.c
+++ b/libavcodec/h264_parse.c
@@ -94,3 +94,95 @@ int ff_h264_pred_weight_table(GetBitContext *gb, const SPS *sps,
pwt->use_weight = pwt->use_weight || pwt->use_weight_chroma;
return 0;
}
+
+/**
+ * Check if the top & left blocks are available if needed and
+ * change the dc mode so it only uses the available blocks.
+ */
+int ff_h264_check_intra4x4_pred_mode(int8_t *pred_mode_cache, void *logctx,
+ int top_samples_available, int left_samples_available)
+{
+ static const int8_t top[12] = {
+ -1, 0, LEFT_DC_PRED, -1, -1, -1, -1, -1, 0
+ };
+ static const int8_t left[12] = {
+ 0, -1, TOP_DC_PRED, 0, -1, -1, -1, 0, -1, DC_128_PRED
+ };
+ int i;
+
+ if (!(top_samples_available & 0x8000)) {
+ for (i = 0; i < 4; i++) {
+ int status = top[pred_mode_cache[scan8[0] + i]];
+ if (status < 0) {
+ av_log(logctx, AV_LOG_ERROR,
+ "top block unavailable for requested intra mode %d\n",
+ status);
+ return AVERROR_INVALIDDATA;
+ } else if (status) {
+ pred_mode_cache[scan8[0] + i] = status;
+ }
+ }
+ }
+
+ if ((left_samples_available & 0x8888) != 0x8888) {
+ static const int mask[4] = { 0x8000, 0x2000, 0x80, 0x20 };
+ for (i = 0; i < 4; i++)
+ if (!(left_samples_available & mask[i])) {
+ int status = left[pred_mode_cache[scan8[0] + 8 * i]];
+ if (status < 0) {
+ av_log(logctx, AV_LOG_ERROR,
+ "left block unavailable for requested intra4x4 mode %d\n",
+ status);
+ return AVERROR_INVALIDDATA;
+ } else if (status) {
+ pred_mode_cache[scan8[0] + 8 * i] = status;
+ }
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * Check if the top & left blocks are available if needed and
+ * change the dc mode so it only uses the available blocks.
+ */
+int ff_h264_check_intra_pred_mode(void *logctx, int top_samples_available,
+ int left_samples_available,
+ int mode, int is_chroma)
+{
+ static const int8_t top[4] = { LEFT_DC_PRED8x8, 1, -1, -1 };
+ static const int8_t left[5] = { TOP_DC_PRED8x8, -1, 2, -1, DC_128_PRED8x8 };
+
+ if (mode > 3U) {
+ av_log(logctx, AV_LOG_ERROR,
+ "out of range intra chroma pred mode\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (!(top_samples_available & 0x8000)) {
+ mode = top[mode];
+ if (mode < 0) {
+ av_log(logctx, AV_LOG_ERROR,
+ "top block unavailable for requested intra mode\n");
+ return AVERROR_INVALIDDATA;
+ }
+ }
+
+ if ((left_samples_available & 0x8080) != 0x8080) {
+ mode = left[mode];
+ if (mode < 0) {
+ av_log(logctx, AV_LOG_ERROR,
+ "left block unavailable for requested intra mode\n");
+ return AVERROR_INVALIDDATA;
+ }
+ if (is_chroma && (left_samples_available & 0x8080)) {
+ // mad cow disease mode, aka MBAFF + constrained_intra_pred
+ mode = ALZHEIMER_DC_L0T_PRED8x8 +
+ (!(left_samples_available & 0x8000)) +
+ 2 * (mode == DC_128_PRED8x8);
+ }
+ }
+
+ return mode;
+}
diff --git a/libavcodec/h264_parse.h b/libavcodec/h264_parse.h
index d1a7af0..8329351 100644
--- a/libavcodec/h264_parse.h
+++ b/libavcodec/h264_parse.h
@@ -45,4 +45,19 @@ int ff_h264_pred_weight_table(GetBitContext *gb, const struct SPS *sps,
const int *ref_count, int slice_type_nos,
H264PredWeightTable *pwt);
+/**
+ * Check if the top & left blocks are available if needed & change the
+ * dc mode so it only uses the available blocks.
+ */
+int ff_h264_check_intra4x4_pred_mode(int8_t *pred_mode_cache, void *logctx,
+ int top_samples_available, int left_samples_available);
+
+/**
+ * Check if the top & left blocks are available if needed & change the
+ * dc mode so it only uses the available blocks.
+ */
+int ff_h264_check_intra_pred_mode(void *logctx, int top_samples_available,
+ int left_samples_available,
+ int mode, int is_chroma);
+
#endif /* AVCODEC_H264_PARSE_H */
diff --git a/libavcodec/svq3.c b/libavcodec/svq3.c
index 0cf9159..01bac4a 100644
--- a/libavcodec/svq3.c
+++ b/libavcodec/svq3.c
@@ -778,7 +778,9 @@ static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
i4x4[6] = i4x4_cache[7 + 8 * 1];
if (mb_type == 8) {
- ff_h264_check_intra4x4_pred_mode(h, sl);
+ ff_h264_check_intra4x4_pred_mode(sl->intra4x4_pred_mode_cache,
+ h->avctx, sl->top_samples_available,
+ sl->left_samples_available);
sl->top_samples_available = (s->mb_y == 0) ? 0x33FF : 0xFFFF;
sl->left_samples_available = (s->mb_x == 0) ? 0x5F5F : 0xFFFF;
@@ -795,7 +797,8 @@ static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
dir = ff_h264_i_mb_type_info[mb_type - 8].pred_mode;
dir = (dir >> 1) ^ 3 * (dir & 1) ^ 1;
- if ((sl->intra16x16_pred_mode = ff_h264_check_intra_pred_mode(h, sl, dir, 0)) < 0) {
+ if ((sl->intra16x16_pred_mode = ff_h264_check_intra_pred_mode(h->avctx, sl->top_samples_available,
+ sl->left_samples_available, dir, 0)) < 0) {
av_log(h->avctx, AV_LOG_ERROR, "ff_h264_check_intra_pred_mode < 0\n");
return sl->intra16x16_pred_mode;
}
@@ -899,7 +902,8 @@ static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
h->cur_pic.mb_type[mb_xy] = mb_type;
if (IS_INTRA(mb_type))
- sl->chroma_pred_mode = ff_h264_check_intra_pred_mode(h, sl, DC_PRED8x8, 1);
+ sl->chroma_pred_mode = ff_h264_check_intra_pred_mode(h->avctx, sl->top_samples_available,
+ sl->left_samples_available, DC_PRED8x8, 1);
return 0;
}
======================================================================
diff --cc libavcodec/Makefile
index 4cda4dc,e66ec51..8f63261
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@@ -509,22 -418,17 +509,22 @@@ OBJS-$(CONFIG_SUNRAST_ENCODER)
OBJS-$(CONFIG_SVQ1_DECODER) += svq1dec.o svq1.o svq13.o h263data.o
OBJS-$(CONFIG_SVQ1_ENCODER) += svq1enc.o svq1.o h263data.o \
h263.o ituh263enc.o
- OBJS-$(CONFIG_SVQ3_DECODER) += svq3.o svq13.o mpegutils.o
+ OBJS-$(CONFIG_SVQ3_DECODER) += svq3.o svq13.o mpegutils.o h264_parse.o
-OBJS-$(CONFIG_TAK_DECODER) += takdec.o tak.o
+OBJS-$(CONFIG_TEXT_DECODER) += textdec.o ass.o
+OBJS-$(CONFIG_TEXT_ENCODER) += srtenc.o ass_split.o
+OBJS-$(CONFIG_TAK_DECODER) += takdec.o tak.o takdsp.o
OBJS-$(CONFIG_TARGA_DECODER) += targa.o
OBJS-$(CONFIG_TARGA_ENCODER) += targaenc.o rle.o
+OBJS-$(CONFIG_TARGA_Y216_DECODER) += targa_y216dec.o
OBJS-$(CONFIG_TDSC_DECODER) += tdsc.o
OBJS-$(CONFIG_TIERTEXSEQVIDEO_DECODER) += tiertexseqv.o
-OBJS-$(CONFIG_TIFF_DECODER) += tiff.o lzw.o faxcompr.o
-OBJS-$(CONFIG_TIFF_ENCODER) += tiffenc.o rle.o lzwenc.o
+OBJS-$(CONFIG_TIFF_DECODER) += tiff.o lzw.o faxcompr.o tiff_data.o tiff_common.o
+OBJS-$(CONFIG_TIFF_ENCODER) += tiffenc.o rle.o lzwenc.o tiff_data.o
OBJS-$(CONFIG_TMV_DECODER) += tmv.o cga_data.o
+OBJS-$(CONFIG_TRUEHD_DECODER) += mlpdec.o mlpdsp.o
OBJS-$(CONFIG_TRUEMOTION1_DECODER) += truemotion1.o
OBJS-$(CONFIG_TRUEMOTION2_DECODER) += truemotion2.o
+OBJS-$(CONFIG_TRUEMOTION2RT_DECODER) += truemotion2rt.o
OBJS-$(CONFIG_TRUESPEECH_DECODER) += truespeech.o
OBJS-$(CONFIG_TSCC_DECODER) += tscc.o msrledec.o
OBJS-$(CONFIG_TSCC2_DECODER) += tscc2.o
diff --cc libavcodec/h264.h
index e655995,e00ce88..302f09a
--- a/libavcodec/h264.h
+++ b/libavcodec/h264.h
@@@ -900,21 -808,8 +900,8 @@@ int ff_h264_decode_ref_pic_marking(H264
int ff_generate_sliding_window_mmcos(H264Context *h, int first_slice);
- /**
- * Check if the top & left blocks are available if needed & change the
- * dc mode so it only uses the available blocks.
- */
- int ff_h264_check_intra4x4_pred_mode(const H264Context *h, H264SliceContext *sl);
-
- /**
- * Check if the top & left blocks are available if needed & change the
- * dc mode so it only uses the available blocks.
- */
- int ff_h264_check_intra_pred_mode(const H264Context *h, H264SliceContext *sl,
- int mode, int is_chroma);
-
void ff_h264_hl_decode_mb(const H264Context *h, H264SliceContext *sl);
-int ff_h264_decode_extradata(H264Context *h);
+int ff_h264_decode_extradata(H264Context *h, const uint8_t *buf, int size);
int ff_h264_decode_init(AVCodecContext *avctx);
void ff_h264_decode_init_vlc(void);
diff --cc libavcodec/h264_parse.c
index ebd87b0,50b1118..e6cc28e
--- a/libavcodec/h264_parse.c
+++ b/libavcodec/h264_parse.c
@@@ -94,3 -84,95 +94,95 @@@ int ff_h264_pred_weight_table(GetBitCon
pwt->use_weight = pwt->use_weight || pwt->use_weight_chroma;
return 0;
}
+
+ /**
+ * Check if the top & left blocks are available if needed and
+ * change the dc mode so it only uses the available blocks.
+ */
+ int ff_h264_check_intra4x4_pred_mode(int8_t *pred_mode_cache, void *logctx,
+ int top_samples_available, int left_samples_available)
+ {
+ static const int8_t top[12] = {
+ -1, 0, LEFT_DC_PRED, -1, -1, -1, -1, -1, 0
+ };
+ static const int8_t left[12] = {
+ 0, -1, TOP_DC_PRED, 0, -1, -1, -1, 0, -1, DC_128_PRED
+ };
+ int i;
+
+ if (!(top_samples_available & 0x8000)) {
+ for (i = 0; i < 4; i++) {
+ int status = top[pred_mode_cache[scan8[0] + i]];
+ if (status < 0) {
+ av_log(logctx, AV_LOG_ERROR,
- "top block unavailable for requested intra4x4 mode %d\n",
++ "top block unavailable for requested intra mode %d\n",
+ status);
+ return AVERROR_INVALIDDATA;
+ } else if (status) {
+ pred_mode_cache[scan8[0] + i] = status;
+ }
+ }
+ }
+
+ if ((left_samples_available & 0x8888) != 0x8888) {
+ static const int mask[4] = { 0x8000, 0x2000, 0x80, 0x20 };
+ for (i = 0; i < 4; i++)
+ if (!(left_samples_available & mask[i])) {
+ int status = left[pred_mode_cache[scan8[0] + 8 * i]];
+ if (status < 0) {
+ av_log(logctx, AV_LOG_ERROR,
+ "left block unavailable for requested intra4x4 mode %d\n",
+ status);
+ return AVERROR_INVALIDDATA;
+ } else if (status) {
+ pred_mode_cache[scan8[0] + 8 * i] = status;
+ }
+ }
+ }
+
+ return 0;
+ }
+
+ /**
+ * Check if the top & left blocks are available if needed and
+ * change the dc mode so it only uses the available blocks.
+ */
+ int ff_h264_check_intra_pred_mode(void *logctx, int top_samples_available,
+ int left_samples_available,
+ int mode, int is_chroma)
+ {
+ static const int8_t top[4] = { LEFT_DC_PRED8x8, 1, -1, -1 };
+ static const int8_t left[5] = { TOP_DC_PRED8x8, -1, 2, -1, DC_128_PRED8x8 };
+
+ if (mode > 3U) {
+ av_log(logctx, AV_LOG_ERROR,
+ "out of range intra chroma pred mode\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (!(top_samples_available & 0x8000)) {
+ mode = top[mode];
+ if (mode < 0) {
+ av_log(logctx, AV_LOG_ERROR,
+ "top block unavailable for requested intra mode\n");
+ return AVERROR_INVALIDDATA;
+ }
+ }
+
+ if ((left_samples_available & 0x8080) != 0x8080) {
+ mode = left[mode];
++ if (mode < 0) {
++ av_log(logctx, AV_LOG_ERROR,
++ "left block unavailable for requested intra mode\n");
++ return AVERROR_INVALIDDATA;
++ }
+ if (is_chroma && (left_samples_available & 0x8080)) {
+ // mad cow disease mode, aka MBAFF + constrained_intra_pred
+ mode = ALZHEIMER_DC_L0T_PRED8x8 +
+ (!(left_samples_available & 0x8000)) +
+ 2 * (mode == DC_128_PRED8x8);
+ }
- if (mode < 0) {
- av_log(logctx, AV_LOG_ERROR,
- "left block unavailable for requested intra mode\n");
- return AVERROR_INVALIDDATA;
- }
+ }
+
+ return mode;
+ }
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