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video-converter: only make a scaler when we are scaling

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Only make a scaler when we are actually doing any scaling. Without
scalers, the scale function will simply do a copy.
This commit is contained in:
Wim Taymans 2015-02-25 16:50:02 +01:00
parent 330fb44a6f
commit e1715f7728
1 changed files with 14 additions and 7 deletions
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21
gst-libs/gst/video/video-converter.c
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@ -3918,9 +3918,12 @@ setup_scale (GstVideoConverter * convert)
gst_video_scaler_free (y_scaler);
gst_video_scaler_free (uv_scaler);
} else {
convert->fh_scaler[0] =
gst_video_scaler_new (method, GST_VIDEO_SCALER_FLAG_NONE, taps,
in_width, out_width, convert->config);
if (in_width != out_width)
convert->fh_scaler[0] =
gst_video_scaler_new (method, GST_VIDEO_SCALER_FLAG_NONE, taps,
in_width, out_width, convert->config);
else
convert->fh_scaler[0] = NULL;
pstride = GST_VIDEO_FORMAT_INFO_PSTRIDE (out_finfo, GST_VIDEO_COMP_R);
convert->fin_x[0] = convert->in_x * pstride;
@ -3929,11 +3932,15 @@ setup_scale (GstVideoConverter * convert)
stride = MAX (stride, GST_VIDEO_INFO_PLANE_STRIDE (in_info, 0));
stride = MAX (stride, GST_VIDEO_INFO_PLANE_STRIDE (out_info, 0));
convert->fv_scaler[0] =
gst_video_scaler_new (method, GST_VIDEO_SCALER_FLAG_NONE, taps,
in_height, out_height, convert->config);
if (in_height != out_height) {
convert->fv_scaler[0] =
gst_video_scaler_new (method, GST_VIDEO_SCALER_FLAG_NONE, taps,
in_height, out_height, convert->config);
gst_video_scaler_get_coeff (convert->fv_scaler[0], 0, NULL, &max_taps);
} else {
convert->fv_scaler[0] = NULL;
}
gst_video_scaler_get_coeff (convert->fv_scaler[0], 0, NULL, &max_taps);
convert->fin_y[0] = convert->in_y;
convert->fout_y[0] = convert->out_y;