Chiebot-Mirror
/
FFmpeg
mirror of https://github.com/FFmpeg/FFmpeg.git
8
0
Fork 0
Code Issues Projects Releases Wiki Activity

avfilter/vf_sr.c: refine code to use AVPixFmtDescriptor.log2_chroma_h/w

Browse Source 
Signed-off-by: Guo, Yejun <yejun.guo@intel.com>
Reviewed-by: Pedro Arthur <bygrandao@gmail.com>
pull/334/head
Guo, Yejun 5 years ago
parent ac73879f1b
commit f9cb7cf424
1 changed files with 6 additions and 34 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 40
      libavfilter/vf_sr.c

40
libavfilter/vf_sr.c
Unescape View File

@ -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);

Write Preview
Loading…
Cancel
Save