diff options
Diffstat (limited to 'libavfilter/vf_histogram.c')
| -rw-r--r-- | libavfilter/vf_histogram.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/libavfilter/vf_histogram.c b/libavfilter/vf_histogram.c index 273d03b7e1..4bd309f2b2 100644 --- a/libavfilter/vf_histogram.c +++ b/libavfilter/vf_histogram.c @@ -183,15 +183,15 @@ static void gen_waveform(HistogramContext *h, AVFrame *inpicref, AVFrame *outpic int component, int intensity, int offset, int col_mode) { const int plane = h->desc->comp[component].plane; + const int is_chroma = (component == 1 || component == 2); + const int shift_w = (is_chroma ? h->desc->log2_chroma_w : 0); + const int shift_h = (is_chroma ? h->desc->log2_chroma_h : 0); const int src_linesize = inpicref->linesize[plane]; const int dst_linesize = outpicref->linesize[plane]; uint8_t *src_data = inpicref->data[plane]; - uint8_t *dst_data = outpicref->data[plane] + (col_mode ? offset * dst_linesize : offset); + uint8_t *dst_data = outpicref->data[plane] + (col_mode ? (offset >> shift_h) * dst_linesize : offset >> shift_w); uint8_t * const dst_line = dst_data; const uint8_t max = 255 - intensity; - const int is_chroma = (component == 1 || component == 2); - const int shift_w = (is_chroma ? h->desc->log2_chroma_w : 0); - const int shift_h = (is_chroma ? h->desc->log2_chroma_h : 0); const int src_h = FF_CEIL_RSHIFT(inpicref->height, shift_h); const int src_w = FF_CEIL_RSHIFT(inpicref->width, shift_w); uint8_t *dst, *p; |