This makes the changed code-path faster. Change not tested except with the fuzzer testcase as I found no other testcase.
Improves: Timeout (136sec -> 74sec) Improves: 16040/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SCPR_fuzzer-5705876062601216 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg --- libavcodec/scpr.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/libavcodec/scpr.c b/libavcodec/scpr.c index 317950dafb..778b064841 100644 --- a/libavcodec/scpr.c +++ b/libavcodec/scpr.c @@ -548,9 +548,8 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, clr = bytestream2_get_le24(gb); } for (y = 0; y < avctx->height; y++) { - for (x = 0; x < avctx->width; x++) { - dst[x] = clr; - } + dst[0] = clr; + av_memcpy_backptr(dst+1, 4, 4*avctx->width - 4); dst += s->current_frame->linesize[0] / 4; } } else if (type == 0 || type == 1) { -- 2.22.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
