diff options
author | Paul B Mahol <onemda@gmail.com> | 2015-07-09 22:18:14 +0300 |
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committer | Paul B Mahol <onemda@gmail.com> | 2015-07-12 23:05:56 +0300 |
commit | 7b07e72abc031db5c7060c5e7f5cadebf0199406 (patch) | |
tree | 1055cf13a7e0eb9f5f31275ce1c231962ff524d6 /libavfilter/vf_stereo3d.c | |
parent | c02ee69be9c511c16ecd07060f40f5c81300ed2f (diff) |
avfilter/vf_stereo3d: implement slice threading for anaglyph output
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Diffstat (limited to 'libavfilter/vf_stereo3d.c')
-rw-r--r-- | libavfilter/vf_stereo3d.c | 71 |
1 files changed, 48 insertions, 23 deletions
diff --git a/libavfilter/vf_stereo3d.c b/libavfilter/vf_stereo3d.c index 771bdde676..5309d70d76 100644 --- a/libavfilter/vf_stereo3d.c +++ b/libavfilter/vf_stereo3d.c @@ -142,6 +142,7 @@ typedef struct Stereo3DContext { int pixstep[4]; AVFrame *prev; double ts_unit; + int in_off_left[4], in_off_right[4]; } Stereo3DContext; #define OFFSET(x) offsetof(Stereo3DContext, x) @@ -485,6 +486,42 @@ static inline uint8_t ana_convert(const int *coeff, const uint8_t *left, const u return av_clip_uint8(sum >> 16); } +typedef struct ThreadData { + AVFrame *ileft, *iright; + AVFrame *out; +} ThreadData; + +static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) +{ + Stereo3DContext *s = ctx->priv; + ThreadData *td = arg; + AVFrame *ileft = td->ileft; + AVFrame *iright = td->iright; + AVFrame *out = td->out; + int height = s->out.height; + int start = (height * jobnr ) / nb_jobs; + int end = (height * (jobnr+1)) / nb_jobs; + uint8_t *dst = out->data[0]; + const int **ana_matrix = s->ana_matrix; + int x, y, il, ir, o; + const uint8_t *lsrc = ileft->data[0]; + const uint8_t *rsrc = iright->data[0]; + int out_width = s->out.width; + + for (y = start; y < end; y++) { + o = out->linesize[0] * y; + il = s->in_off_left[0] + y * ileft->linesize[0]; + ir = s->in_off_right[0] + y * iright->linesize[0]; + for (x = 0; x < out_width; x++, il += 3, ir += 3, o+= 3) { + dst[o ] = ana_convert(ana_matrix[0], lsrc + il, rsrc + ir); + dst[o + 1] = ana_convert(ana_matrix[1], lsrc + il, rsrc + ir); + dst[o + 2] = ana_convert(ana_matrix[2], lsrc + il, rsrc + ir); + } + } + + return 0; +} + static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref) { AVFilterContext *ctx = inlink->dst; @@ -492,7 +529,6 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref) AVFilterLink *outlink = ctx->outputs[0]; AVFrame *out, *oleft, *oright, *ileft, *iright; int out_off_left[4], out_off_right[4]; - int in_off_left[4], in_off_right[4]; int i; switch (s->in.format) { @@ -534,8 +570,8 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref) for (i = 0; i < 4; i++) { int hsub = i == 1 || i == 2 ? s->hsub : 0; int vsub = i == 1 || i == 2 ? s->vsub : 0; - in_off_left[i] = (FF_CEIL_RSHIFT(s->in.row_left, vsub) + s->in.off_lstep) * ileft->linesize[i] + FF_CEIL_RSHIFT(s->in.off_left * s->pixstep[i], hsub); - in_off_right[i] = (FF_CEIL_RSHIFT(s->in.row_right, vsub) + s->in.off_rstep) * iright->linesize[i] + FF_CEIL_RSHIFT(s->in.off_right * s->pixstep[i], hsub); + s->in_off_left[i] = (FF_CEIL_RSHIFT(s->in.row_left, vsub) + s->in.off_lstep) * ileft->linesize[i] + FF_CEIL_RSHIFT(s->in.off_left * s->pixstep[i], hsub); + s->in_off_right[i] = (FF_CEIL_RSHIFT(s->in.row_right, vsub) + s->in.off_rstep) * iright->linesize[i] + FF_CEIL_RSHIFT(s->in.off_right * s->pixstep[i], hsub); out_off_left[i] = (FF_CEIL_RSHIFT(s->out.row_left, vsub) + s->out.off_lstep) * oleft->linesize[i] + FF_CEIL_RSHIFT(s->out.off_left * s->pixstep[i], hsub); out_off_right[i] = (FF_CEIL_RSHIFT(s->out.row_right, vsub) + s->out.off_rstep) * oright->linesize[i] + FF_CEIL_RSHIFT(s->out.off_right * s->pixstep[i], hsub); } @@ -556,12 +592,12 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref) for (i = 0; i < s->nb_planes; i++) { av_image_copy_plane(oleft->data[i] + out_off_left[i], oleft->linesize[i] * s->row_step, - ileft->data[i] + in_off_left[i], + ileft->data[i] + s->in_off_left[i], ileft->linesize[i] * s->row_step, s->linesize[i], s->pheight[i]); av_image_copy_plane(oright->data[i] + out_off_right[i], oright->linesize[i] * s->row_step, - iright->data[i] + in_off_right[i], + iright->data[i] + s->in_off_right[i], iright->linesize[i] * s->row_step, s->linesize[i], s->pheight[i]); } @@ -571,7 +607,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref) case MONO_R: for (i = 0; i < s->nb_planes; i++) { av_image_copy_plane(out->data[i], out->linesize[i], - iright->data[i] + in_off_left[i], + iright->data[i] + s->in_off_left[i], iright->linesize[i], s->linesize[i], s->pheight[i]); } @@ -590,23 +626,11 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref) case ANAGLYPH_YB_HALF: case ANAGLYPH_YB_COLOR: case ANAGLYPH_YB_DUBOIS: { - int x, y, il, ir, o; - const uint8_t *lsrc = ileft->data[0]; - const uint8_t *rsrc = iright->data[0]; - uint8_t *dst = out->data[0]; - int out_width = s->out.width; - const int **ana_matrix = s->ana_matrix; - - for (y = 0; y < s->out.height; y++) { - o = out->linesize[0] * y; - il = in_off_left[0] + y * ileft->linesize[0]; - ir = in_off_right[0] + y * iright->linesize[0]; - for (x = 0; x < out_width; x++, il += 3, ir += 3, o+= 3) { - dst[o ] = ana_convert(ana_matrix[0], lsrc + il, rsrc + ir); - dst[o + 1] = ana_convert(ana_matrix[1], lsrc + il, rsrc + ir); - dst[o + 2] = ana_convert(ana_matrix[2], lsrc + il, rsrc + ir); - } - } + ThreadData td; + + td.ileft = ileft; td.iright = iright; td.out = out; + ctx->internal->execute(ctx, filter_slice, &td, NULL, + FFMIN(s->out.height, ctx->graph->nb_threads)); break; } default: @@ -663,4 +687,5 @@ AVFilter ff_vf_stereo3d = { .inputs = stereo3d_inputs, .outputs = stereo3d_outputs, .priv_class = &stereo3d_class, + .flags = AVFILTER_FLAG_SLICE_THREADS, }; |