From ea49f60523c4f4c43cb06a35166b44478d473e51 Mon Sep 17 00:00:00 2001 From: Janne Grunau Date: Mon, 20 Jan 2014 18:16:54 +0100 Subject: [PATCH] h264: skip chroma edges at the picture boundary while deblocking 4:4:4 This handles macroblock edges for the chroma components in the same way as for the luma compoment for 4:4:4 streams. The Spec explicitly states that the deblocking filter is not applied to edges at the boundary of the picture. Signed-off-by: Janne Grunau --- libavcodec/h264.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) diff --git a/libavcodec/h264.c b/libavcodec/h264.c index 4b10a68..5069e4a 100644 --- a/libavcodec/h264.c +++ b/libavcodec/h264.c @@ -2361,17 +2361,19 @@ static av_always_inline void xchg_mb_border(H264Context *h, uint8_t *src_y, } if (simple || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) { if (chroma444) { - if (deblock_topleft) { - XCHG(top_border_m1 + (24 << pixel_shift), src_cb - (7 << pixel_shift), 1); - XCHG(top_border_m1 + (40 << pixel_shift), src_cr - (7 << pixel_shift), 1); - } - XCHG(top_border + (16 << pixel_shift), src_cb + (1 << pixel_shift), xchg); - XCHG(top_border + (24 << pixel_shift), src_cb + (9 << pixel_shift), 1); - XCHG(top_border + (32 << pixel_shift), src_cr + (1 << pixel_shift), xchg); - XCHG(top_border + (40 << pixel_shift), src_cr + (9 << pixel_shift), 1); - if (h->mb_x + 1 < h->mb_width) { - XCHG(h->top_borders[top_idx][h->mb_x + 1] + (16 << pixel_shift), src_cb + (17 << pixel_shift), 1); - XCHG(h->top_borders[top_idx][h->mb_x + 1] + (32 << pixel_shift), src_cr + (17 << pixel_shift), 1); + if (deblock_top) { + if (deblock_topleft) { + XCHG(top_border_m1 + (24 << pixel_shift), src_cb - (7 << pixel_shift), 1); + XCHG(top_border_m1 + (40 << pixel_shift), src_cr - (7 << pixel_shift), 1); + } + XCHG(top_border + (16 << pixel_shift), src_cb + (1 << pixel_shift), xchg); + XCHG(top_border + (24 << pixel_shift), src_cb + (9 << pixel_shift), 1); + XCHG(top_border + (32 << pixel_shift), src_cr + (1 << pixel_shift), xchg); + XCHG(top_border + (40 << pixel_shift), src_cr + (9 << pixel_shift), 1); + if (h->mb_x + 1 < h->mb_width) { + XCHG(h->top_borders[top_idx][h->mb_x + 1] + (16 << pixel_shift), src_cb + (17 << pixel_shift), 1); + XCHG(h->top_borders[top_idx][h->mb_x + 1] + (32 << pixel_shift), src_cr + (17 << pixel_shift), 1); + } } } else { if (deblock_top) { -- 2.7.4