avfilter/delogo: Fix show option when band is small
[ffmpeg.git] / libavfilter / vf_hflip.c
index 413c566..362bd01 100644 (file)
  * horizontal flip filter
  */
 
+#include <string.h>
+
 #include "avfilter.h"
 #include "formats.h"
 #include "internal.h"
 #include "video.h"
 #include "libavutil/pixdesc.h"
+#include "libavutil/internal.h"
 #include "libavutil/intreadwrite.h"
 #include "libavutil/imgutils.h"
 
-typedef struct {
+typedef struct FlipContext {
     int max_step[4];    ///< max pixel step for each plane, expressed as a number of bytes
-    int hsub, vsub;     ///< chroma subsampling
+    int planewidth[4];  ///< width of each plane
+    int planeheight[4]; ///< height of each plane
 } FlipContext;
 
 static int query_formats(AVFilterContext *ctx)
 {
-    static const enum PixelFormat pix_fmts[] = {
-        PIX_FMT_RGB48BE,      PIX_FMT_RGB48LE,
-        PIX_FMT_BGR48BE,      PIX_FMT_BGR48LE,
-        PIX_FMT_ARGB,         PIX_FMT_RGBA,
-        PIX_FMT_ABGR,         PIX_FMT_BGRA,
-        PIX_FMT_RGB24,        PIX_FMT_BGR24,
-        PIX_FMT_RGB565BE,     PIX_FMT_RGB565LE,
-        PIX_FMT_RGB555BE,     PIX_FMT_RGB555LE,
-        PIX_FMT_RGB444BE,     PIX_FMT_RGB444LE,
-        PIX_FMT_BGR565BE,     PIX_FMT_BGR565LE,
-        PIX_FMT_BGR555BE,     PIX_FMT_BGR555LE,
-        PIX_FMT_BGR444BE,     PIX_FMT_BGR444LE,
-        PIX_FMT_GRAY16BE,     PIX_FMT_GRAY16LE,
-        PIX_FMT_YUV420P16LE,  PIX_FMT_YUV420P16BE,
-        PIX_FMT_YUV422P16LE,  PIX_FMT_YUV422P16BE,
-        PIX_FMT_YUV444P16LE,  PIX_FMT_YUV444P16BE,
-        PIX_FMT_YUV444P,      PIX_FMT_YUV422P,
-        PIX_FMT_YUV420P,      PIX_FMT_YUV411P,
-        PIX_FMT_YUV410P,      PIX_FMT_YUV440P,
-        PIX_FMT_YUVJ444P,     PIX_FMT_YUVJ422P,
-        PIX_FMT_YUVJ420P,     PIX_FMT_YUVJ440P,
-        PIX_FMT_YUVA420P,
-        PIX_FMT_RGB8,         PIX_FMT_BGR8,
-        PIX_FMT_RGB4_BYTE,    PIX_FMT_BGR4_BYTE,
-        PIX_FMT_PAL8,         PIX_FMT_GRAY8,
-        PIX_FMT_NONE
-    };
-
-    ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
-    return 0;
+    AVFilterFormats *pix_fmts = NULL;
+    int fmt;
+
+    for (fmt = 0; av_pix_fmt_desc_get(fmt); fmt++) {
+        const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt);
+        if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL ||
+              desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ||
+              (desc->log2_chroma_w != desc->log2_chroma_h &&
+               desc->comp[0].plane == desc->comp[1].plane)))
+            ff_add_format(&pix_fmts, fmt);
+    }
+
+    return ff_set_common_formats(ctx, pix_fmts);
 }
 
 static int config_props(AVFilterLink *inlink)
 {
-    FlipContext *flip = inlink->dst->priv;
-    const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[inlink->format];
+    FlipContext *s = inlink->dst->priv;
+    const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(inlink->format);
+    const int hsub = pix_desc->log2_chroma_w;
+    const int vsub = pix_desc->log2_chroma_h;
 
-    av_image_fill_max_pixsteps(flip->max_step, NULL, pix_desc);
-    flip->hsub = av_pix_fmt_descriptors[inlink->format].log2_chroma_w;
-    flip->vsub = av_pix_fmt_descriptors[inlink->format].log2_chroma_h;
+    av_image_fill_max_pixsteps(s->max_step, NULL, pix_desc);
+    s->planewidth[0]  = s->planewidth[3]  = inlink->w;
+    s->planewidth[1]  = s->planewidth[2]  = FF_CEIL_RSHIFT(inlink->w, hsub);
+    s->planeheight[0] = s->planeheight[3] = inlink->h;
+    s->planeheight[1] = s->planeheight[2] = FF_CEIL_RSHIFT(inlink->h, vsub);
 
     return 0;
 }
 
-static int start_frame(AVFilterLink *inlink, AVFilterBufferRef *picref)
-{
-    AVFilterLink *outlink = inlink->dst->outputs[0];
-
-    outlink->out_buf =
-        ff_get_video_buffer(outlink, AV_PERM_WRITE, outlink->w, outlink->h);
-    avfilter_copy_buffer_ref_props(outlink->out_buf, picref);
+typedef struct ThreadData {
+    AVFrame *in, *out;
+} ThreadData;
 
-    /* copy palette if required */
-    if (av_pix_fmt_descriptors[inlink->format].flags & PIX_FMT_PAL)
-        memcpy(inlink->dst->outputs[0]->out_buf->data[1], picref->data[1], AVPALETTE_SIZE);
-
-    return ff_start_frame(outlink, avfilter_ref_buffer(outlink->out_buf, ~0));
-}
-
-static int draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
+static int filter_slice(AVFilterContext *ctx, void *arg, int job, int nb_jobs)
 {
-    FlipContext *flip = inlink->dst->priv;
-    AVFilterBufferRef *inpic  = inlink->cur_buf;
-    AVFilterBufferRef *outpic = inlink->dst->outputs[0]->out_buf;
+    FlipContext *s = ctx->priv;
+    ThreadData *td = arg;
+    AVFrame *in = td->in;
+    AVFrame *out = td->out;
     uint8_t *inrow, *outrow;
-    int i, j, plane, step, hsub, vsub;
+    int i, j, plane, step;
 
-    for (plane = 0; plane < 4 && inpic->data[plane]; plane++) {
-        step = flip->max_step[plane];
-        hsub = (plane == 1 || plane == 2) ? flip->hsub : 0;
-        vsub = (plane == 1 || plane == 2) ? flip->vsub : 0;
+    for (plane = 0; plane < 4 && in->data[plane] && in->linesize[plane]; plane++) {
+        const int width  = s->planewidth[plane];
+        const int height = s->planeheight[plane];
+        const int start = (height *  job   ) / nb_jobs;
+        const int end   = (height * (job+1)) / nb_jobs;
 
-        outrow = outpic->data[plane] + (y>>vsub) * outpic->linesize[plane];
-        inrow  = inpic ->data[plane] + (y>>vsub) * inpic ->linesize[plane] + ((inlink->w >> hsub) - 1) * step;
-        for (i = 0; i < h>>vsub; i++) {
+        step = s->max_step[plane];
+
+        outrow = out->data[plane] + start * out->linesize[plane];
+        inrow  = in ->data[plane] + start * in->linesize[plane] + (width - 1) * step;
+        for (i = start; i < end; i++) {
             switch (step) {
             case 1:
-                for (j = 0; j < (inlink->w >> hsub); j++)
+                for (j = 0; j < width; j++)
                     outrow[j] = inrow[-j];
             break;
 
@@ -124,7 +108,7 @@ static int draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
             {
                 uint16_t *outrow16 = (uint16_t *)outrow;
                 uint16_t * inrow16 = (uint16_t *) inrow;
-                for (j = 0; j < (inlink->w >> hsub); j++)
+                for (j = 0; j < width; j++)
                     outrow16[j] = inrow16[-j];
             }
             break;
@@ -133,7 +117,7 @@ static int draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
             {
                 uint8_t *in  =  inrow;
                 uint8_t *out = outrow;
-                for (j = 0; j < (inlink->w >> hsub); j++, out += 3, in -= 3) {
+                for (j = 0; j < width; j++, out += 3, in -= 3) {
                     int32_t v = AV_RB24(in);
                     AV_WB24(out, v);
                 }
@@ -144,38 +128,73 @@ static int draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
             {
                 uint32_t *outrow32 = (uint32_t *)outrow;
                 uint32_t * inrow32 = (uint32_t *) inrow;
-                for (j = 0; j < (inlink->w >> hsub); j++)
+                for (j = 0; j < width; j++)
                     outrow32[j] = inrow32[-j];
             }
             break;
 
             default:
-                for (j = 0; j < (inlink->w >> hsub); j++)
+                for (j = 0; j < width; j++)
                     memcpy(outrow + j*step, inrow - j*step, step);
             }
 
-            inrow  += inpic ->linesize[plane];
-            outrow += outpic->linesize[plane];
+            inrow  += in ->linesize[plane];
+            outrow += out->linesize[plane];
         }
     }
 
-    return ff_draw_slice(inlink->dst->outputs[0], y, h, slice_dir);
+    return 0;
 }
 
-AVFilter avfilter_vf_hflip = {
-    .name      = "hflip",
-    .description = NULL_IF_CONFIG_SMALL("Horizontally flip the input video."),
-    .priv_size = sizeof(FlipContext),
-    .query_formats = query_formats,
+static int filter_frame(AVFilterLink *inlink, AVFrame *in)
+{
+    AVFilterContext *ctx  = inlink->dst;
+    AVFilterLink *outlink = ctx->outputs[0];
+    ThreadData td;
+    AVFrame *out;
+
+    out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
+    if (!out) {
+        av_frame_free(&in);
+        return AVERROR(ENOMEM);
+    }
+    av_frame_copy_props(out, in);
+
+    /* copy palette if required */
+    if (av_pix_fmt_desc_get(inlink->format)->flags & AV_PIX_FMT_FLAG_PAL)
+        memcpy(out->data[1], in->data[1], AVPALETTE_SIZE);
+
+    td.in = in, td.out = out;
+    ctx->internal->execute(ctx, filter_slice, &td, NULL, FFMIN(outlink->h, ctx->graph->nb_threads));
+
+    av_frame_free(&in);
+    return ff_filter_frame(outlink, out);
+}
+
+static const AVFilterPad avfilter_vf_hflip_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_VIDEO,
+        .filter_frame = filter_frame,
+        .config_props = config_props,
+    },
+    { NULL }
+};
 
-    .inputs    = (const AVFilterPad[]) {{ .name            = "default",
-                                          .type            = AVMEDIA_TYPE_VIDEO,
-                                          .start_frame     = start_frame,
-                                          .draw_slice      = draw_slice,
-                                          .config_props    = config_props,
-                                          .min_perms       = AV_PERM_READ, },
-                                        { .name = NULL}},
-    .outputs   = (const AVFilterPad[]) {{ .name            = "default",
-                                          .type            = AVMEDIA_TYPE_VIDEO, },
-                                        { .name = NULL}},
+static const AVFilterPad avfilter_vf_hflip_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_VIDEO,
+    },
+    { NULL }
+};
+
+AVFilter ff_vf_hflip = {
+    .name          = "hflip",
+    .description   = NULL_IF_CONFIG_SMALL("Horizontally flip the input video."),
+    .priv_size     = sizeof(FlipContext),
+    .query_formats = query_formats,
+    .inputs        = avfilter_vf_hflip_inputs,
+    .outputs       = avfilter_vf_hflip_outputs,
+    .flags         = AVFILTER_FLAG_SLICE_THREADS,
 };