diff options
Diffstat (limited to 'libavcodec/qdrw.c')
| -rw-r--r-- | libavcodec/qdrw.c | 20 |
1 files changed, 6 insertions, 14 deletions
diff --git a/libavcodec/qdrw.c b/libavcodec/qdrw.c index e650f49547..e09872bf3e 100644 --- a/libavcodec/qdrw.c +++ b/libavcodec/qdrw.c @@ -199,26 +199,18 @@ static int decode_rle16(AVCodecContext *avctx, AVFrame *p, GetByteContext *gbc) if (code & 0x80 ) { /* run */ pix = bytestream2_get_be16(gbc); for (j = 0; j < 257 - code; j++) { - out[pos] = pix; - pos++; - if (pos >= offset) { - pos -= offset; - pos++; + if (pos < offset) { + out[pos++] = pix; } - if (pos >= offset) - return AVERROR_INVALIDDATA; } left -= 3; } else { /* copy */ for (j = 0; j < code + 1; j++) { - out[pos] = bytestream2_get_be16(gbc); - pos++; - if (pos >= offset) { - pos -= offset; - pos++; + if (pos < offset) { + out[pos++] = bytestream2_get_be16(gbc); + } else { + bytestream2_skip(gbc, 2); } - if (pos >= offset) - return AVERROR_INVALIDDATA; } left -= 1 + (code + 1) * 2; } |