avcodec/dsd: use uint8_t instead of unsigned char

[ffmpeg] / libavcodec / indeo2.c

diff --git a/libavcodec/indeo2.c b/libavcodec/indeo2.c
index 4971b84308f850a248792cb13507392f51d3cf6e..f367682e6183b7587a7a83a685fe876ad42cbc36 100644 (file)
--- a/libavcodec/indeo2.c
+++ b/libavcodec/indeo2.c
@@ -56,7 +56,7 @@ static int ir2_decode_plane(Ir2Context *ctx, int width, int height, uint8_t *dst
     int j;
     int out = 0;
 
-    if (width & 1)
+    if ((width & 1) || width * height / (2*(IR2_CODES - 0x7F)) > get_bits_left(&ctx->gb))
         return AVERROR_INVALIDDATA;
 
     /* first line contain absolute values, other lines contain deltas */
@@ -79,10 +79,11 @@ static int ir2_decode_plane(Ir2Context *ctx, int width, int height, uint8_t *dst
 
     for (j = 1; j < height; j++) {
         out = 0;
-        if (get_bits_left(&ctx->gb) <= 0)
-            return AVERROR_INVALIDDATA;
         while (out < width) {
-            int c = ir2_get_code(&ctx->gb);
+            int c;
+            if (get_bits_left(&ctx->gb) <= 0)
+                return AVERROR_INVALIDDATA;
+            c = ir2_get_code(&ctx->gb);
             if (c >= 0x80) { /* we have a skip */
                 c -= 0x7F;
                 if (out + c*2 > width)
@@ -123,9 +124,9 @@ static int ir2_decode_plane_inter(Ir2Context *ctx, int width, int height, uint8_
 
     for (j = 0; j < height; j++) {
         out = 0;
-        if (get_bits_left(&ctx->gb) <= 0)
-            return AVERROR_INVALIDDATA;
         while (out < width) {
+            if (get_bits_left(&ctx->gb) <= 0)
+                return AVERROR_INVALIDDATA;
             c = ir2_get_code(&ctx->gb);
             if (c >= 0x80) { /* we have a skip */
                 c   -= 0x7F;