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| author | Stefano Sabatini <stefasab@gmail.com> | 2012-09-05 10:37:12 +0200 |
|---|---|---|
| committer | Stefano Sabatini <stefasab@gmail.com> | 2012-09-06 00:40:01 +0200 |
| commit | 9a2daef53ffe6bc0f1b879d55d57a1eef9d1f684 (patch) | |
| tree | a90392439adb88a75aeff739b22eecf335f440e9 | |
| parent | fd5293d216316752fd34dcb29051e748f076e5fb (diff) | |
| download | ffmpeg-9a2daef53ffe6bc0f1b879d55d57a1eef9d1f684.tar.gz | |
lavfi/tinterlace: declare source buffers in copy_picture_field() as const
Increase performance (slightly).
| -rw-r--r-- | libavfilter/vf_tinterlace.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/libavfilter/vf_tinterlace.c b/libavfilter/vf_tinterlace.c index 6ec56741ea..d41889afbd 100644 --- a/libavfilter/vf_tinterlace.c +++ b/libavfilter/vf_tinterlace.c @@ -175,7 +175,7 @@ static int config_out_props(AVFilterLink *outlink) */ static inline void copy_picture_field(uint8_t *dst[4], int dst_linesize[4], - uint8_t *src[4], int src_linesize[4], + const uint8_t *src[4], int src_linesize[4], enum PixelFormat format, int w, int src_h, int src_field, int interleave, int dst_field) { @@ -187,7 +187,7 @@ void copy_picture_field(uint8_t *dst[4], int dst_linesize[4], int lines = plane == 1 || plane == 2 ? src_h >> vsub : src_h; int linesize = av_image_get_linesize(format, w, plane); uint8_t *dstp = dst[plane]; - uint8_t *srcp = src[plane]; + const uint8_t *srcp = src[plane]; lines /= k; if (src_field == FIELD_LOWER) srcp += src_linesize[plane]; @@ -235,12 +235,12 @@ static int end_frame(AVFilterLink *inlink) /* write odd frame lines into the upper field of the new frame */ copy_picture_field(out->data, out->linesize, - cur->data, cur->linesize, + (const uint8_t **)cur->data, cur->linesize, inlink->format, inlink->w, inlink->h, FIELD_UPPER_AND_LOWER, 1, FIELD_UPPER); /* write even frame lines into the lower field of the new frame */ copy_picture_field(out->data, out->linesize, - next->data, next->linesize, + (const uint8_t **)next->data, next->linesize, inlink->format, inlink->w, inlink->h, FIELD_UPPER_AND_LOWER, 1, FIELD_LOWER); avfilter_unref_bufferp(&tinterlace->next); @@ -261,12 +261,12 @@ static int end_frame(AVFilterLink *inlink) field = (1 + tinterlace->frame) & 1 ? FIELD_UPPER : FIELD_LOWER; /* copy upper and lower fields */ copy_picture_field(out->data, out->linesize, - cur->data, cur->linesize, + (const uint8_t **)cur->data, cur->linesize, inlink->format, inlink->w, inlink->h, FIELD_UPPER_AND_LOWER, 1, field); /* pad with black the other field */ copy_picture_field(out->data, out->linesize, - tinterlace->black_data, tinterlace->black_linesize, + (const uint8_t **)tinterlace->black_data, tinterlace->black_linesize, inlink->format, inlink->w, inlink->h, FIELD_UPPER_AND_LOWER, 1, !field); break; @@ -283,12 +283,12 @@ static int end_frame(AVFilterLink *inlink) /* copy upper/lower field from cur */ copy_picture_field(out->data, out->linesize, - cur->data, cur->linesize, + (const uint8_t **)cur->data, cur->linesize, inlink->format, inlink->w, inlink->h, tff ? FIELD_UPPER : FIELD_LOWER, 1, tff ? FIELD_UPPER : FIELD_LOWER); /* copy lower/upper field from next */ copy_picture_field(out->data, out->linesize, - next->data, next->linesize, + (const uint8_t **)next->data, next->linesize, inlink->format, inlink->w, inlink->h, tff ? FIELD_LOWER : FIELD_UPPER, 1, tff ? FIELD_LOWER : FIELD_UPPER); avfilter_unref_bufferp(&tinterlace->next); @@ -310,12 +310,12 @@ static int end_frame(AVFilterLink *inlink) /* write current frame second field lines into the second field of the new frame */ copy_picture_field(out->data, out->linesize, - cur->data, cur->linesize, + (const uint8_t **)cur->data, cur->linesize, inlink->format, inlink->w, inlink->h, tff ? FIELD_LOWER : FIELD_UPPER, 1, tff ? FIELD_LOWER : FIELD_UPPER); /* write next frame first field lines into the first field of the new frame */ copy_picture_field(out->data, out->linesize, - next->data, next->linesize, + (const uint8_t **)next->data, next->linesize, inlink->format, inlink->w, inlink->h, tff ? FIELD_UPPER : FIELD_LOWER, 1, tff ? FIELD_UPPER : FIELD_LOWER); break; |