X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Findeo5.c;h=b1c50c2adbad05e2215efbd0c76711bb61310653;hb=c48883163d6c7ff0806687bf3ee33ca9f8e7dede;hp=4c6bfd66d1c565040aa9e7748bf9eb71940fdd4d;hpb=8bc7fe4daf5c26555d77e2261c96ee14a800fad4;p=ffmpeg

diff --git a/libavcodec/indeo5.c b/libavcodec/indeo5.c
index 4c6bfd66d1c..b1c50c2adba 100644
--- a/libavcodec/indeo5.c
+++ b/libavcodec/indeo5.c
@@ -27,7 +27,7 @@
  * Known FOURCCs: 'IV50'
  */
 
-#define ALT_BITSTREAM_READER_LE
+#define BITSTREAM_READER_LE
 #include "avcodec.h"
 #include "get_bits.h"
 #include "dsputil.h"
@@ -90,7 +90,7 @@ typedef struct {
  */
 static int decode_gop_header(IVI5DecContext *ctx, AVCodecContext *avctx)
 {
-    int             result, i, p, tile_size, pic_size_indx, mb_size, blk_size;
+    int             result, i, p, tile_size, pic_size_indx, mb_size, blk_size, is_scalable;
     int             quant_mat, blk_size_changed = 0;
     IVIBandDesc     *band, *band1, *band2;
     IVIPicConfig    pic_conf;
@@ -112,8 +112,8 @@ static int decode_gop_header(IVI5DecContext *ctx, AVCodecContext *avctx)
     /* num_levels * 3 + 1 */
     pic_conf.luma_bands   = get_bits(&ctx->gb, 2) * 3 + 1;
     pic_conf.chroma_bands = get_bits1(&ctx->gb)   * 3 + 1;
-    ctx->is_scalable = pic_conf.luma_bands != 1 || pic_conf.chroma_bands != 1;
-    if (ctx->is_scalable && (pic_conf.luma_bands != 4 || pic_conf.chroma_bands != 1)) {
+    is_scalable = pic_conf.luma_bands != 1 || pic_conf.chroma_bands != 1;
+    if (is_scalable && (pic_conf.luma_bands != 4 || pic_conf.chroma_bands != 1)) {
         av_log(avctx, AV_LOG_ERROR, "Scalability: unsupported subdivision! Luma bands: %d, chroma bands: %d\n",
                pic_conf.luma_bands, pic_conf.chroma_bands);
         return -1;
@@ -151,6 +151,7 @@ static int decode_gop_header(IVI5DecContext *ctx, AVCodecContext *avctx)
             return -1;
         }
         ctx->pic_conf = pic_conf;
+        ctx->is_scalable = is_scalable;
         blk_size_changed = 1; /* force reallocation of the internal structures */
     }
 
@@ -481,7 +482,7 @@ static int decode_mb_info(IVI5DecContext *ctx, IVIBandDesc *band,
                 }
 
                 mb->mv_x = mb->mv_y = 0; /* no motion vector coded */
-                if (band->inherit_mv){
+                if (band->inherit_mv && ref_mb){
                     /* motion vector inheritance */
                     if (mv_scale) {
                         mb->mv_x = ivi_scale_mv(ref_mb->mv_x, mv_scale);
@@ -492,7 +493,7 @@ static int decode_mb_info(IVI5DecContext *ctx, IVIBandDesc *band,
                     }
                 }
             } else {
-                if (band->inherit_mv) {
+                if (band->inherit_mv && ref_mb) {
                     mb->type = ref_mb->type; /* copy mb_type from corresponding reference mb */
                 } else if (ctx->frame_type == FRAMETYPE_INTRA) {
                     mb->type = 0; /* mb_type is always INTRA for intra-frames */
@@ -518,7 +519,7 @@ static int decode_mb_info(IVI5DecContext *ctx, IVIBandDesc *band,
                 if (!mb->type) {
                     mb->mv_x = mb->mv_y = 0; /* there is no motion vector in intra-macroblocks */
                 } else {
-                    if (band->inherit_mv){
+                    if (band->inherit_mv && ref_mb){
                         /* motion vector inheritance */
                         if (mv_scale) {
                             mb->mv_x = ivi_scale_mv(ref_mb->mv_x, mv_scale);
@@ -759,7 +760,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
 
     switch_buffers(ctx);
 
-    //START_TIMER;
+    //{ START_TIMER;
 
     if (ctx->frame_type != FRAMETYPE_NULL) {
         for (p = 0; p < 3; p++) {
@@ -774,7 +775,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
         }
     }
 
-    //STOP_TIMER("decode_planes");
+    //STOP_TIMER("decode_planes"); }
 
     if (ctx->frame.data[0])
         avctx->release_buffer(avctx, &ctx->frame);