[libav-commits] indeo: track tile macroblock size

Kostya Shishkov git at libav.org
Sun May 20 11:24:50 CEST 2012


Module: libav
Branch: master
Commit: a6e4ac40a62930d3c90f869990f96fedb9a5d654

Author:    Kostya Shishkov <kostya.shishkov at gmail.com>
Committer: Kostya Shishkov <kostya.shishkov at gmail.com>
Date:      Sat May 19 13:08:51 2012 +0200

indeo: track tile macroblock size

---

 libavcodec/ivi_common.c |    6 ++++++
 libavcodec/ivi_common.h |    1 +
 2 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/libavcodec/ivi_common.c b/libavcodec/ivi_common.c
index b66dde5..581e7a5 100644
--- a/libavcodec/ivi_common.c
+++ b/libavcodec/ivi_common.c
@@ -287,6 +287,7 @@ av_cold int ff_ivi_init_tiles(IVIPlaneDesc *planes, int tile_width, int tile_hei
                 for (x = 0; x < band->width; x += t_width) {
                     tile->xpos     = x;
                     tile->ypos     = y;
+                    tile->mb_size  = band->mb_size;
                     tile->width    = FFMIN(band->width - x,  t_width);
                     tile->height   = FFMIN(band->height - y, t_height);
                     tile->is_empty = tile->data_size = 0;
@@ -670,6 +671,11 @@ static int decode_band(IVI45DecContext *ctx, int plane_num,
     for (t = 0; t < band->num_tiles; t++) {
         tile = &band->tiles[t];
 
+        if (tile->mb_size != band->mb_size) {
+            av_log(avctx, AV_LOG_ERROR, "MB sizes mismatch: %d vs. %d\n",
+                   band->mb_size, tile->mb_size);
+            return AVERROR_INVALIDDATA;
+        }
         tile->is_empty = get_bits1(&ctx->gb);
         if (tile->is_empty) {
             ff_ivi_process_empty_tile(avctx, band, tile,
diff --git a/libavcodec/ivi_common.h b/libavcodec/ivi_common.h
index d3edea0..6842d74 100644
--- a/libavcodec/ivi_common.h
+++ b/libavcodec/ivi_common.h
@@ -118,6 +118,7 @@ typedef struct {
     int         ypos;
     int         width;
     int         height;
+    int         mb_size;
     int         is_empty;  ///< = 1 if this tile doesn't contain any data
     int         data_size; ///< size of the data in bytes
     int         num_MBs;   ///< number of macroblocks in this tile



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