avcodec/hevc_sei: use ff_parse_a53_cc() to parse A53 Closed Captions

[ffmpeg] / libavcodec / sonic.c

diff --git a/libavcodec/sonic.c b/libavcodec/sonic.c
index 2e3ca79fdd1c8185a7c15ef56496b57363265f18..ea6ef10c9eff5176ea9eb8109e6bd92f852201a3 100644 (file)
--- a/libavcodec/sonic.c
+++ b/libavcodec/sonic.c
@@ -140,10 +140,13 @@ static inline av_flatten int get_symbol(RangeCoder *c, uint8_t *state, int is_si
     if(get_rac(c, state+0))
         return 0;
     else{
-        int i, e, a;
+        int i, e;
+        unsigned a;
         e= 0;
         while(get_rac(c, state+1 + FFMIN(e,9))){ //1..10
             e++;
+            if (e > 31)
+                return AVERROR_INVALIDDATA;
         }
 
         a= 1;
@@ -455,8 +458,8 @@ static void predictor_init_state(int *k, int *state, int order)
 
         for (j = 0, p = i+1; p < order; j++,p++)
             {
-            int tmp = x + shift_down(k[j] * state[p], LATTICE_SHIFT);
-            state[p] += shift_down(k[j]*x, LATTICE_SHIFT);
+            int tmp = x + shift_down(k[j] * (unsigned)state[p], LATTICE_SHIFT);
+            state[p] += shift_down(k[j]* (unsigned)x, LATTICE_SHIFT);
             x = tmp;
         }
     }
@@ -464,7 +467,7 @@ static void predictor_init_state(int *k, int *state, int order)
 
 static int predictor_calc_error(int *k, int *state, int order, int error)
 {
-    int i, x = error - shift_down(k[order-1] * state[order-1], LATTICE_SHIFT);
+    int i, x = error - shift_down(k[order-1] *  (unsigned)state[order-1], LATTICE_SHIFT);
 
 #if 1
     int *k_ptr = &(k[order-2]),
@@ -472,8 +475,8 @@ static int predictor_calc_error(int *k, int *state, int order, int error)
     for (i = order-2; i >= 0; i--, k_ptr--, state_ptr--)
     {
         int k_value = *k_ptr, state_value = *state_ptr;
-        x -= shift_down(k_value * state_value, LATTICE_SHIFT);
-        state_ptr[1] = state_value + shift_down(k_value * x, LATTICE_SHIFT);
+        x -= shift_down(k_value * (unsigned)state_value, LATTICE_SHIFT);
+        state_ptr[1] = state_value + shift_down(k_value * (unsigned)x, LATTICE_SHIFT);
     }
 #else
     for (i = order-2; i >= 0; i--)
@@ -842,7 +845,7 @@ static int sonic_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
 
 //    av_log(avctx, AV_LOG_DEBUG, "used bytes: %d\n", (put_bits_count(&pb)+7)/8);
 
-    avpkt->size = ff_rac_terminate(&c);
+    avpkt->size = ff_rac_terminate(&c, 0);
     *got_packet_ptr = 1;
     return 0;
 
@@ -1042,7 +1045,7 @@ static int sonic_decode_frame(AVCodecContext *avctx,
                 x += s->channels;
             }
 
-            s->int_samples[x] = predictor_calc_error(s->predictor_k, s->predictor_state[ch], s->num_taps, s->coded_samples[ch][i] * quant);
+            s->int_samples[x] = predictor_calc_error(s->predictor_k, s->predictor_state[ch], s->num_taps, s->coded_samples[ch][i] * (unsigned)quant);
             x += s->channels;
         }