diff --git a/libavcodec/rscc.c b/libavcodec/rscc.c index 7921f149ed..e4b51973d8 100644 --- a/libavcodec/rscc.c +++ b/libavcodec/rscc.c @@ -64,6 +64,7 @@ typedef struct RsccContext { /* zlib interaction */ uint8_t *inflated_buf; uLongf inflated_size; + int valid_pixels } RsccContext; static av_cold int rscc_init(AVCodecContext *avctx) @@ -347,8 +348,11 @@ static int rscc_decode_frame(AVCodecContext *avctx, void *data, } memcpy (frame->data[1], ctx->palette, AVPALETTE_SIZE); } - - *got_frame = 1; + // We only return a picture when enough of it is undamaged, this avoids copying nearly broken frames around + if (ctx->valid_pixels < ctx->inflated_size) + ctx->valid_pixels += pixel_size; + if (ctx->valid_pixels >= ctx->inflated_size * (100 - avctx->discard_damaged_percentage) / 100) + *got_frame = 1; ret = avpkt->size; end: