From: Limin Wang <lance.lmw...@gmail.com> Signed-off-by: Limin Wang <lance.lmw...@gmail.com> --- libavfilter/framerate.h | 3 +-- libavfilter/vf_framerate.c | 58 +++++++++++++++++++++------------------------- 2 files changed, 27 insertions(+), 34 deletions(-)
diff --git a/libavfilter/framerate.h b/libavfilter/framerate.h index 3d8200b..887f173 100644 --- a/libavfilter/framerate.h +++ b/libavfilter/framerate.h @@ -28,8 +28,7 @@ ptrdiff_t width, ptrdiff_t height, \ int factor1, int factor2, int half -#define BLEND_FACTOR_DEPTH8 7 -#define BLEND_FACTOR_DEPTH16 15 +#define BLEND_FACTOR_DEPTH(n) (n-1) typedef void (*blend_func)(BLEND_FUNC_PARAMS); diff --git a/libavfilter/vf_framerate.c b/libavfilter/vf_framerate.c index 1254da8..6383f69 100644 --- a/libavfilter/vf_framerate.c +++ b/libavfilter/vf_framerate.c @@ -236,44 +236,38 @@ static int query_formats(AVFilterContext *ctx) return ff_set_common_formats(ctx, fmts_list); } -static void blend_frames_c(BLEND_FUNC_PARAMS) -{ - int line, pixel; - for (line = 0; line < height; line++) { - for (pixel = 0; pixel < width; pixel++) - dst[pixel] = ((src1[pixel] * factor1) + (src2[pixel] * factor2) + half) >> BLEND_FACTOR_DEPTH8; - src1 += src1_linesize; - src2 += src2_linesize; - dst += dst_linesize; - } -} - -static void blend_frames16_c(BLEND_FUNC_PARAMS) -{ - int line, pixel; - uint16_t *dstw = (uint16_t *)dst; - uint16_t *src1w = (uint16_t *)src1; - uint16_t *src2w = (uint16_t *)src2; - width /= 2; - src1_linesize /= 2; - src2_linesize /= 2; - dst_linesize /= 2; - for (line = 0; line < height; line++) { - for (pixel = 0; pixel < width; pixel++) - dstw[pixel] = ((src1w[pixel] * factor1) + (src2w[pixel] * factor2) + half) >> BLEND_FACTOR_DEPTH16; - src1w += src1_linesize; - src2w += src2_linesize; - dstw += dst_linesize; - } +#define BLEND_FRAME_FUNC(nbits) \ +static void blend_frames##nbits##_c(BLEND_FUNC_PARAMS) \ +{ \ + int line, pixel; \ + uint##nbits##_t *dstw = (uint##nbits##_t *)dst; \ + uint##nbits##_t *src1w = (uint##nbits##_t *)src1; \ + uint##nbits##_t *src2w = (uint##nbits##_t *)src2; \ + int bytes = nbits / 8; \ + width /= bytes; \ + src1_linesize /= bytes; \ + src2_linesize /= bytes; \ + dst_linesize /= bytes; \ + for (line = 0; line < height; line++) { \ + for (pixel = 0; pixel < width; pixel++) \ + dstw[pixel] = ((src1w[pixel] * factor1) + \ + (src2w[pixel] * factor2) + half) \ + >> BLEND_FACTOR_DEPTH(nbits); \ + src1w += src1_linesize; \ + src2w += src2_linesize; \ + dstw += dst_linesize; \ + } \ } +BLEND_FRAME_FUNC(8) +BLEND_FRAME_FUNC(16) void ff_framerate_init(FrameRateContext *s) { if (s->bitdepth == 8) { - s->blend_factor_max = 1 << BLEND_FACTOR_DEPTH8; - s->blend = blend_frames_c; + s->blend_factor_max = 1 << BLEND_FACTOR_DEPTH(8); + s->blend = blend_frames8_c; } else { - s->blend_factor_max = 1 << BLEND_FACTOR_DEPTH16; + s->blend_factor_max = 1 << BLEND_FACTOR_DEPTH(16); s->blend = blend_frames16_c; } if (ARCH_X86) -- 2.6.4 _______________________________________________ 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".