ARM: intmath: use native-size return types for clipping functions

[ffmpeg] / libavcodec / kmvc.c

diff --git a/libavcodec/kmvc.c b/libavcodec/kmvc.c
index 2b54b84e9994744c32efa0329542801965211863..a8c6dbc1cf28fe89a80d7b0a603fdde27edacf57 100644 (file)
--- a/libavcodec/kmvc.c
+++ b/libavcodec/kmvc.c
@@ -33,6 +33,7 @@
 #define KMVC_KEYFRAME 0x80
 #define KMVC_PALETTE  0x40
 #define KMVC_METHOD   0x0F
+#define MAX_PALSIZE   256
 
 /*
  * Decoder context
@@ -43,7 +44,7 @@ typedef struct KmvcContext {
 
     int setpal;
     int palsize;
-    uint32_t pal[256];
+    uint32_t pal[MAX_PALSIZE];
     uint8_t *cur, *prev;
     uint8_t *frm0, *frm1;
     GetByteContext g;
@@ -376,10 +377,15 @@ static av_cold int decode_init(AVCodecContext * avctx)
     }
 
     if (avctx->extradata_size < 12) {
-        av_log(NULL, 0, "Extradata missing, decoding may not work properly...\n");
+        av_log(avctx, AV_LOG_WARNING,
+               "Extradata missing, decoding may not work properly...\n");
         c->palsize = 127;
     } else {
         c->palsize = AV_RL16(avctx->extradata + 10);
+        if (c->palsize >= MAX_PALSIZE) {
+            av_log(avctx, AV_LOG_ERROR, "KMVC palette too large\n");
+            return AVERROR_INVALIDDATA;
+        }
     }
 
     if (avctx->extradata_size == 1036) {        // palette in extradata
@@ -416,11 +422,11 @@ static av_cold int decode_end(AVCodecContext * avctx)
 AVCodec ff_kmvc_decoder = {
     .name           = "kmvc",
     .type           = AVMEDIA_TYPE_VIDEO,
-    .id             = CODEC_ID_KMVC,
+    .id             = AV_CODEC_ID_KMVC,
     .priv_data_size = sizeof(KmvcContext),
     .init           = decode_init,
     .close          = decode_end,
     .decode         = decode_frame,
     .capabilities   = CODEC_CAP_DR1,
-    .long_name = NULL_IF_CONFIG_SMALL("Karl Morton's video codec"),
+    .long_name      = NULL_IF_CONFIG_SMALL("Karl Morton's video codec"),
 };