Initialize s->opaque before calling url_resetbuf().

[ffmpeg] / libavcodec / vp5.c

diff --git a/libavcodec/vp5.c b/libavcodec/vp5.c
index 61155b47894a6be4a308e9436afdc2494b32dae8..e47db0d2c1fb2d6e533598fce56adc8c767075ff 100644 (file)
--- a/libavcodec/vp5.c
+++ b/libavcodec/vp5.c
@@ -58,7 +58,8 @@ static int vp5_parse_header(VP56Context *s, const uint8_t *buf, int buf_size,
         vp56_rac_gets(c, 8);  /* number of displayed macroblock rows */
         vp56_rac_gets(c, 8);  /* number of displayed macroblock cols */
         vp56_rac_gets(c, 2);
-        if (16*cols != s->avctx->coded_width ||
+        if (!s->macroblocks || /* first frame */
+            16*cols != s->avctx->coded_width ||
             16*rows != s->avctx->coded_height) {
             avcodec_set_dimensions(s->avctx, 16*cols, 16*rows);
             return 2;
@@ -87,7 +88,7 @@ static int vp5_adjust(int v, int t)
 static void vp5_parse_vector_adjustment(VP56Context *s, VP56mv *vect)
 {
     VP56RangeCoder *c = &s->c;
-    Vp56Model *model = s->modelp;
+    VP56Model *model = s->modelp;
     int comp, di;
 
     for (comp=0; comp<2; comp++) {
@@ -111,7 +112,7 @@ static void vp5_parse_vector_adjustment(VP56Context *s, VP56mv *vect)
 static void vp5_parse_vector_models(VP56Context *s)
 {
     VP56RangeCoder *c = &s->c;
-    Vp56Model *model = s->modelp;
+    VP56Model *model = s->modelp;
     int comp, node;
 
     for (comp=0; comp<2; comp++) {
@@ -134,7 +135,7 @@ static void vp5_parse_vector_models(VP56Context *s)
 static void vp5_parse_coeff_models(VP56Context *s)
 {
     VP56RangeCoder *c = &s->c;
-    Vp56Model *model = s->modelp;
+    VP56Model *model = s->modelp;
     uint8_t def_prob[11];
     int node, cg, ctx;
     int ct;    /* code type */
@@ -180,7 +181,7 @@ static void vp5_parse_coeff_models(VP56Context *s)
 static void vp5_parse_coeff(VP56Context *s)
 {
     VP56RangeCoder *c = &s->c;
-    Vp56Model *model = s->modelp;
+    VP56Model *model = s->modelp;
     uint8_t *permute = s->scantable.permutated;
     uint8_t *model1, *model2;
     int coeff, sign, coeff_idx;
@@ -252,7 +253,7 @@ static void vp5_parse_coeff(VP56Context *s)
 
 static void vp5_default_models_init(VP56Context *s)
 {
-    Vp56Model *model = s->modelp;
+    VP56Model *model = s->modelp;
     int i;
 
     for (i=0; i<2; i++) {