Fuzzing test 20241122 (#26)

* Fuzzing test

Signed-off-by: [email protected] <[email protected]>

* removed underflow at tile data size writing

Signed-off-by: [email protected] <[email protected]>

---------

Signed-off-by: [email protected] <[email protected]>

Author: kpchoi

src/oapv.c

@@ -803,9 +803,9 @@ static int enc_tile(oapve_ctx_t *ctx, oapve_core_t *core, oapve_tile_t *tile)
         qp = ctx->qp[Y_C];
     }
 
-    tile->data_size = 0;
+    tile->tile_size = 0;
     DUMP_SAVE(0);
-    oapve_vlc_tile_size(&bs, tile->data_size);
+    oapve_vlc_tile_size(&bs, tile->tile_size);
     oapve_set_tile_header(ctx, &tile->th, core->tile_idx, qp);
     oapve_vlc_tile_header(ctx, &bs, &tile->th);
 
@@ -882,11 +882,11 @@ static int enc_tile(oapve_ctx_t *ctx, oapve_core_t *core, oapve_tile_t *tile)
     oapv_bs_t bs_th;
     bs_th.is_bin_count = 0;
     oapv_bsw_init(&bs_th, tile->bs_buf, tile->bs_size, NULL);
-    tile->data_size = bs_size - OAPV_TILE_SIZE_LEN;
+    tile->tile_size = bs_size - OAPV_TILE_SIZE_LEN;
 
     DUMP_SAVE(1);
     DUMP_LOAD(0);
-    oapve_vlc_tile_size(&bs_th, tile->data_size);
+    oapve_vlc_tile_size(&bs_th, tile->tile_size);
     oapve_vlc_tile_header(ctx, &bs_th, &tile->th);
     DUMP_LOAD(1);
     oapv_bsw_deinit(&bs_th);

src/oapv_def.h

@@ -251,7 +251,7 @@ struct oapve_tile {
     int             y; /* y (row) position in a frame in unit of pixel */
     int             w; /* tile width in unit of pixel */
     int             h; /* tile height in unit of pixel */
-    u32             data_size;
+    u32             tile_size;
     oapve_rc_tile_t rc;
     u8             *bs_buf;
     s32             bs_size;

src/oapv_vlc.c

@@ -411,6 +411,11 @@ void oapve_set_tile_header(oapve_ctx_t *ctx, oapv_th_t *th, int tile_idx, int qp
         }
     }
     th->tile_index = tile_idx;
+
+    for(int i = 0; i < N_C; i++) {
+        // this setting is required to prevent underflow at dummy writing tile header due to '-1'.
+        th->tile_data_size[i] = 1;
+    }
 }
 
 int oapve_vlc_tile_header(oapve_ctx_t *ctx, oapv_bs_t *bs, oapv_th_t *th)

version.txt

@@ -1 +1 @@
-v0.1.9
+v0.1.9.2