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| author | Guo, Yejun <yejun.guo@intel.com> | 2020-02-21 19:29:12 +0800 |
|---|---|---|
| committer | Guo, Yejun <yejun.guo@intel.com> | 2020-03-03 15:28:59 +0800 |
| commit | f9cb7cf424054ea098cb0e329ba49efb41d02b7c (patch) | |
| tree | 6faf9103c803a5034e16c2696b747d54317acfdf | |
| parent | ac73879f1bb27aa979a69bda24d1ca790e69f341 (diff) | |
| download | ffmpeg-f9cb7cf424054ea098cb0e329ba49efb41d02b7c.tar.gz | |
avfilter/vf_sr.c: refine code to use AVPixFmtDescriptor.log2_chroma_h/w
Signed-off-by: Guo, Yejun <yejun.guo@intel.com>
Reviewed-by: Pedro Arthur <bygrandao@gmail.com>
| -rw-r--r-- | libavfilter/vf_sr.c | 40 |
1 files changed, 6 insertions, 34 deletions
diff --git a/libavfilter/vf_sr.c b/libavfilter/vf_sr.c index 562b03069b..f000eda186 100644 --- a/libavfilter/vf_sr.c +++ b/libavfilter/vf_sr.c @@ -176,40 +176,12 @@ static int config_props(AVFilterLink *inlink) sr_context->sws_slice_h = inlink->h; } else { if (inlink->format != AV_PIX_FMT_GRAY8){ - sws_src_h = sr_context->input.height; - sws_src_w = sr_context->input.width; - sws_dst_h = sr_context->output.height; - sws_dst_w = sr_context->output.width; - - switch (inlink->format){ - case AV_PIX_FMT_YUV420P: - sws_src_h = AV_CEIL_RSHIFT(sws_src_h, 1); - sws_src_w = AV_CEIL_RSHIFT(sws_src_w, 1); - sws_dst_h = AV_CEIL_RSHIFT(sws_dst_h, 1); - sws_dst_w = AV_CEIL_RSHIFT(sws_dst_w, 1); - break; - case AV_PIX_FMT_YUV422P: - sws_src_w = AV_CEIL_RSHIFT(sws_src_w, 1); - sws_dst_w = AV_CEIL_RSHIFT(sws_dst_w, 1); - break; - case AV_PIX_FMT_YUV444P: - break; - case AV_PIX_FMT_YUV410P: - sws_src_h = AV_CEIL_RSHIFT(sws_src_h, 2); - sws_src_w = AV_CEIL_RSHIFT(sws_src_w, 2); - sws_dst_h = AV_CEIL_RSHIFT(sws_dst_h, 2); - sws_dst_w = AV_CEIL_RSHIFT(sws_dst_w, 2); - break; - case AV_PIX_FMT_YUV411P: - sws_src_w = AV_CEIL_RSHIFT(sws_src_w, 2); - sws_dst_w = AV_CEIL_RSHIFT(sws_dst_w, 2); - break; - default: - av_log(context, AV_LOG_ERROR, - "could not create SwsContext for scaling for given input pixel format: %s\n", - av_get_pix_fmt_name(inlink->format)); - return AVERROR(EIO); - } + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); + sws_src_h = AV_CEIL_RSHIFT(sr_context->input.height, desc->log2_chroma_h); + sws_src_w = AV_CEIL_RSHIFT(sr_context->input.width, desc->log2_chroma_w); + sws_dst_h = AV_CEIL_RSHIFT(sr_context->output.height, desc->log2_chroma_h); + sws_dst_w = AV_CEIL_RSHIFT(sr_context->output.width, desc->log2_chroma_w); + sr_context->sws_contexts[0] = sws_getContext(sws_src_w, sws_src_h, AV_PIX_FMT_GRAY8, sws_dst_w, sws_dst_h, AV_PIX_FMT_GRAY8, SWS_BICUBIC, NULL, NULL, NULL); |