avcodec/videotoolbox: fix decoding of some HEVC videos

[ffmpeg] / libavcodec / g2meet.c

diff --git a/libavcodec/g2meet.c b/libavcodec/g2meet.c
index a46157218f23bdc0e1caa0090fe0ac45252ce014..a1dec8d823d95f6a0c54ccc0afac8120ddcd34f4 100644 (file)
--- a/libavcodec/g2meet.c
+++ b/libavcodec/g2meet.c
@@ -556,8 +556,8 @@ static uint32_t epic_decode_pixel_pred(ePICContext *dc, int x, int y,
         B     = ((pred >> B_shift) & 0xFF) - TOSIGNED(delta);
     }
 
-    if (R<0 || G<0 || B<0) {
-        av_log(NULL, AV_LOG_ERROR, "RGB %d %d %d is out of range\n", R, G, B);
+    if (R<0 || G<0 || B<0 || R > 255 || G > 255 || B > 255) {
+        avpriv_request_sample(NULL, "RGB %d %d %d is out of range\n", R, G, B);
         return 0;
     }
 
@@ -927,6 +927,7 @@ static int epic_jb_decode_tile(G2MContext *c, int tile_x, int tile_y,
         if (c->ec.els_ctx.err != 0) {
             av_log(avctx, AV_LOG_ERROR,
                    "ePIC: couldn't decode transparency pixel!\n");
+            ff_els_decoder_uninit(&c->ec.unsigned_rung);
             return AVERROR_INVALIDDATA;
         }
 
@@ -1355,14 +1356,16 @@ static void g2m_paint_cursor(G2MContext *c, uint8_t *dst, int stride)
     } else {
         dst    +=  x * 3;
     }
-    if (y < 0) {
+
+    if (y < 0)
         h      +=  y;
+    if (w < 0 || h < 0)
+        return;
+    if (y < 0) {
         cursor += -y * c->cursor_stride;
     } else {
         dst    +=  y * stride;
     }
-    if (w < 0 || h < 0)
-        return;
 
     for (j = 0; j < h; j++) {
         for (i = 0; i < w; i++) {