avcodec: Constify AVCodecs

[ffmpeg] / libavcodec / wmaprodec.c

diff --git a/libavcodec/wmaprodec.c b/libavcodec/wmaprodec.c
index 88ee5f4015a73b751d5203a56c487a4ac4dff3df..9607e509681ed1ca957ed14620bc590ccb57d1fc 100644 (file)
--- a/libavcodec/wmaprodec.c
+++ b/libavcodec/wmaprodec.c
@@ -1721,6 +1721,12 @@ static int decode_packet(AVCodecContext *avctx, WMAProDecodeCtx *s,
         }
     } else {
         int frame_size;
+
+        if (avpkt->size < s->next_packet_start) {
+            s->packet_loss = 1;
+            return AVERROR_INVALIDDATA;
+        }
+
         s->buf_bit_size = (avpkt->size - s->next_packet_start) << 3;
         init_get_bits(gb, avpkt->data, s->buf_bit_size);
         skip_bits(gb, s->packet_offset);
@@ -1999,7 +2005,7 @@ static void xma_flush(AVCodecContext *avctx)
 /**
  *@brief wmapro decoder
  */
-AVCodec ff_wmapro_decoder = {
+const AVCodec ff_wmapro_decoder = {
     .name           = "wmapro",
     .long_name      = NULL_IF_CONFIG_SMALL("Windows Media Audio 9 Professional"),
     .type           = AVMEDIA_TYPE_AUDIO,
@@ -2015,7 +2021,7 @@ AVCodec ff_wmapro_decoder = {
                                                       AV_SAMPLE_FMT_NONE },
 };
 
-AVCodec ff_xma1_decoder = {
+const AVCodec ff_xma1_decoder = {
     .name           = "xma1",
     .long_name      = NULL_IF_CONFIG_SMALL("Xbox Media Audio 1"),
     .type           = AVMEDIA_TYPE_AUDIO,
@@ -2030,7 +2036,7 @@ AVCodec ff_xma1_decoder = {
                                                       AV_SAMPLE_FMT_NONE },
 };
 
-AVCodec ff_xma2_decoder = {
+const AVCodec ff_xma2_decoder = {
     .name           = "xma2",
     .long_name      = NULL_IF_CONFIG_SMALL("Xbox Media Audio 2"),
     .type           = AVMEDIA_TYPE_AUDIO,