X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavfilter%2Fvf_stack.c;h=3d2b19a3188d977dfa48ac29e6c6c1805f4a344e;hb=d7e0d428faaa04e2fd850eca82f314ca2ad3dfe5;hp=b2b8c68041d21e3b2fb997f5fbe8dc72f31ebba4;hpb=ef71ef5f30ddf1cd61e46628a04608892caf76d2;p=ffmpeg

diff --git a/libavfilter/vf_stack.c b/libavfilter/vf_stack.c
index b2b8c68041d..3d2b19a3188 100644
--- a/libavfilter/vf_stack.c
+++ b/libavfilter/vf_stack.c
@@ -21,41 +21,60 @@
 #include "libavutil/avstring.h"
 #include "libavutil/imgutils.h"
 #include "libavutil/opt.h"
+#include "libavutil/parseutils.h"
 #include "libavutil/pixdesc.h"
 
 #include "avfilter.h"
+#include "drawutils.h"
 #include "formats.h"
 #include "internal.h"
 #include "framesync.h"
 #include "video.h"
 
+typedef struct StackItem {
+    int x[4], y[4];
+    int linesize[4];
+    int height[4];
+} StackItem;
+
 typedef struct StackContext {
     const AVClass *class;
     const AVPixFmtDescriptor *desc;
     int nb_inputs;
+    char *layout;
     int shortest;
     int is_vertical;
+    int is_horizontal;
     int nb_planes;
+    uint8_t fillcolor[4];
+    char *fillcolor_str;
+    int fillcolor_enable;
+
+    FFDrawContext draw;
+    FFDrawColor color;
 
+    StackItem *items;
     AVFrame **frames;
     FFFrameSync fs;
 } StackContext;
 
 static int query_formats(AVFilterContext *ctx)
 {
-    AVFilterFormats *pix_fmts = NULL;
-    int fmt, ret;
-
-    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_PAL ||
-              desc->flags & AV_PIX_FMT_FLAG_HWACCEL ||
-              desc->flags & AV_PIX_FMT_FLAG_BITSTREAM) &&
-            (ret = ff_add_format(&pix_fmts, fmt)) < 0)
-            return ret;
+    AVFilterFormats *formats = NULL;
+    StackContext *s = ctx->priv;
+    int ret;
+
+    if (s->fillcolor_enable) {
+        return ff_set_common_formats(ctx, ff_draw_supported_pixel_formats(0));
     }
 
-    return ff_set_common_formats(ctx, pix_fmts);
+    ret = ff_formats_pixdesc_filter(&formats, 0,
+                                    AV_PIX_FMT_FLAG_HWACCEL |
+                                    AV_PIX_FMT_FLAG_BITSTREAM |
+                                    AV_PIX_FMT_FLAG_PAL);
+    if (ret < 0)
+        return ret;
+    return ff_set_common_formats(ctx, formats);
 }
 
 static av_cold int init(AVFilterContext *ctx)
@@ -66,10 +85,36 @@ static av_cold int init(AVFilterContext *ctx)
     if (!strcmp(ctx->filter->name, "vstack"))
         s->is_vertical = 1;
 
+    if (!strcmp(ctx->filter->name, "hstack"))
+        s->is_horizontal = 1;
+
     s->frames = av_calloc(s->nb_inputs, sizeof(*s->frames));
     if (!s->frames)
         return AVERROR(ENOMEM);
 
+    s->items = av_calloc(s->nb_inputs, sizeof(*s->items));
+    if (!s->items)
+        return AVERROR(ENOMEM);
+
+    if (!strcmp(ctx->filter->name, "xstack")) {
+        if (strcmp(s->fillcolor_str, "none") &&
+            av_parse_color(s->fillcolor, s->fillcolor_str, -1, ctx) >= 0) {
+            s->fillcolor_enable = 1;
+        } else {
+            s->fillcolor_enable = 0;
+        }
+        if (!s->layout) {
+            if (s->nb_inputs == 2) {
+                s->layout = av_strdup("0_0|w0_0");
+                if (!s->layout)
+                    return AVERROR(ENOMEM);
+            } else {
+                av_log(ctx, AV_LOG_ERROR, "No layout specified.\n");
+                return AVERROR(EINVAL);
+            }
+        }
+    }
+
     for (i = 0; i < s->nb_inputs; i++) {
         AVFilterPad pad = { 0 };
 
@@ -87,6 +132,29 @@ static av_cold int init(AVFilterContext *ctx)
     return 0;
 }
 
+static int process_slice(AVFilterContext *ctx, void *arg, int job, int nb_jobs)
+{
+    StackContext *s = ctx->priv;
+    AVFrame *out = arg;
+    AVFrame **in = s->frames;
+    const int start = (s->nb_inputs *  job   ) / nb_jobs;
+    const int end   = (s->nb_inputs * (job+1)) / nb_jobs;
+
+    for (int i = start; i < end; i++) {
+        StackItem *item = &s->items[i];
+
+        for (int p = 0; p < s->nb_planes; p++) {
+            av_image_copy_plane(out->data[p] + out->linesize[p] * item->y[p] + item->x[p],
+                                out->linesize[p],
+                                in[i]->data[p],
+                                in[i]->linesize[p],
+                                item->linesize[p], item->height[p]);
+        }
+    }
+
+    return 0;
+}
+
 static int process_frame(FFFrameSync *fs)
 {
     AVFilterContext *ctx = fs->parent;
@@ -94,7 +162,7 @@ static int process_frame(FFFrameSync *fs)
     StackContext *s = fs->opaque;
     AVFrame **in = s->frames;
     AVFrame *out;
-    int i, p, ret, offset[4] = { 0 };
+    int i, ret;
 
     for (i = 0; i < s->nb_inputs; i++) {
         if ((ret = ff_framesync_get_frame(&s->fs, i, &in[i], 0)) < 0)
@@ -107,37 +175,11 @@ static int process_frame(FFFrameSync *fs)
     out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
     out->sample_aspect_ratio = outlink->sample_aspect_ratio;
 
-    for (i = 0; i < s->nb_inputs; i++) {
-        AVFilterLink *inlink = ctx->inputs[i];
-        int linesize[4];
-        int height[4];
-
-        if ((ret = av_image_fill_linesizes(linesize, inlink->format, inlink->w)) < 0) {
-            av_frame_free(&out);
-            return ret;
-        }
+    if (s->fillcolor_enable)
+        ff_fill_rectangle(&s->draw, &s->color, out->data, out->linesize,
+                          0, 0, outlink->w, outlink->h);
 
-        height[1] = height[2] = AV_CEIL_RSHIFT(inlink->h, s->desc->log2_chroma_h);
-        height[0] = height[3] = inlink->h;
-
-        for (p = 0; p < s->nb_planes; p++) {
-            if (s->is_vertical) {
-                av_image_copy_plane(out->data[p] + offset[p] * out->linesize[p],
-                                    out->linesize[p],
-                                    in[i]->data[p],
-                                    in[i]->linesize[p],
-                                    linesize[p], height[p]);
-                offset[p] += height[p];
-            } else {
-                av_image_copy_plane(out->data[p] + offset[p],
-                                    out->linesize[p],
-                                    in[i]->data[p],
-                                    in[i]->linesize[p],
-                                    linesize[p], height[p]);
-                offset[p] += linesize[p];
-            }
-        }
-    }
+    ctx->internal->execute(ctx, process_slice, out, NULL, FFMIN(s->nb_inputs, ff_filter_get_nb_threads(ctx)));
 
     return ff_filter_frame(outlink, out);
 }
@@ -146,7 +188,6 @@ static int config_output(AVFilterLink *outlink)
 {
     AVFilterContext *ctx = outlink->src;
     StackContext *s = ctx->priv;
-    AVRational time_base = ctx->inputs[0]->time_base;
     AVRational frame_rate = ctx->inputs[0]->frame_rate;
     AVRational sar = ctx->inputs[0]->sample_aspect_ratio;
     int height = ctx->inputs[0]->h;
@@ -154,35 +195,157 @@ static int config_output(AVFilterLink *outlink)
     FFFrameSyncIn *in;
     int i, ret;
 
+    s->desc = av_pix_fmt_desc_get(outlink->format);
+    if (!s->desc)
+        return AVERROR_BUG;
+
     if (s->is_vertical) {
-        for (i = 1; i < s->nb_inputs; i++) {
+        for (i = 0; i < s->nb_inputs; i++) {
+            AVFilterLink *inlink = ctx->inputs[i];
+            StackItem *item = &s->items[i];
+
             if (ctx->inputs[i]->w != width) {
                 av_log(ctx, AV_LOG_ERROR, "Input %d width %d does not match input %d width %d.\n", i, ctx->inputs[i]->w, 0, width);
                 return AVERROR(EINVAL);
             }
-            height += ctx->inputs[i]->h;
+
+            if ((ret = av_image_fill_linesizes(item->linesize, inlink->format, inlink->w)) < 0) {
+                return ret;
+            }
+
+            item->height[1] = item->height[2] = AV_CEIL_RSHIFT(inlink->h, s->desc->log2_chroma_h);
+            item->height[0] = item->height[3] = inlink->h;
+
+            if (i) {
+                item->y[1] = item->y[2] = AV_CEIL_RSHIFT(height, s->desc->log2_chroma_h);
+                item->y[0] = item->y[3] = height;
+
+                height += ctx->inputs[i]->h;
+            }
         }
-    } else {
-        for (i = 1; i < s->nb_inputs; i++) {
+    } else if (s->is_horizontal) {
+        for (i = 0; i < s->nb_inputs; i++) {
+            AVFilterLink *inlink = ctx->inputs[i];
+            StackItem *item = &s->items[i];
+
             if (ctx->inputs[i]->h != height) {
                 av_log(ctx, AV_LOG_ERROR, "Input %d height %d does not match input %d height %d.\n", i, ctx->inputs[i]->h, 0, height);
                 return AVERROR(EINVAL);
             }
-            width += ctx->inputs[i]->w;
+
+            if ((ret = av_image_fill_linesizes(item->linesize, inlink->format, inlink->w)) < 0) {
+                return ret;
+            }
+
+            item->height[1] = item->height[2] = AV_CEIL_RSHIFT(inlink->h, s->desc->log2_chroma_h);
+            item->height[0] = item->height[3] = inlink->h;
+
+            if (i) {
+                if ((ret = av_image_fill_linesizes(item->x, inlink->format, width)) < 0) {
+                    return ret;
+                }
+
+                width += ctx->inputs[i]->w;
+            }
+        }
+    } else {
+        char *arg, *p = s->layout, *saveptr = NULL;
+        char *arg2, *p2, *saveptr2 = NULL;
+        char *arg3, *p3, *saveptr3 = NULL;
+        int inw, inh, size;
+
+        if (s->fillcolor_enable) {
+            ff_draw_init(&s->draw, ctx->inputs[0]->format, 0);
+            ff_draw_color(&s->draw, &s->color, s->fillcolor);
+        }
+
+        for (i = 0; i < s->nb_inputs; i++) {
+            AVFilterLink *inlink = ctx->inputs[i];
+            StackItem *item = &s->items[i];
+
+            if (!(arg = av_strtok(p, "|", &saveptr)))
+                return AVERROR(EINVAL);
+
+            p = NULL;
+
+            if ((ret = av_image_fill_linesizes(item->linesize, inlink->format, inlink->w)) < 0) {
+                return ret;
+            }
+
+            item->height[1] = item->height[2] = AV_CEIL_RSHIFT(inlink->h, s->desc->log2_chroma_h);
+            item->height[0] = item->height[3] = inlink->h;
+
+            p2 = arg;
+            inw = inh = 0;
+
+            for (int j = 0; j < 2; j++) {
+                if (!(arg2 = av_strtok(p2, "_", &saveptr2)))
+                    return AVERROR(EINVAL);
+
+                p2 = NULL;
+                p3 = arg2;
+                while ((arg3 = av_strtok(p3, "+", &saveptr3))) {
+                    p3 = NULL;
+                    if (sscanf(arg3, "w%d", &size) == 1) {
+                        if (size == i || size < 0 || size >= s->nb_inputs)
+                            return AVERROR(EINVAL);
+
+                        if (!j)
+                            inw += ctx->inputs[size]->w;
+                        else
+                            inh += ctx->inputs[size]->w;
+                    } else if (sscanf(arg3, "h%d", &size) == 1) {
+                        if (size == i || size < 0 || size >= s->nb_inputs)
+                            return AVERROR(EINVAL);
+
+                        if (!j)
+                            inw += ctx->inputs[size]->h;
+                        else
+                            inh += ctx->inputs[size]->h;
+                    } else if (sscanf(arg3, "%d", &size) == 1) {
+                        if (size < 0)
+                            return AVERROR(EINVAL);
+
+                        if (!j)
+                            inw += size;
+                        else
+                            inh += size;
+                    } else {
+                        return AVERROR(EINVAL);
+                    }
+                }
+            }
+
+            if ((ret = av_image_fill_linesizes(item->x, inlink->format, inw)) < 0) {
+                return ret;
+            }
+
+            item->y[1] = item->y[2] = AV_CEIL_RSHIFT(inh, s->desc->log2_chroma_h);
+            item->y[0] = item->y[3] = inh;
+
+            width  = FFMAX(width,  inlink->w + inw);
+            height = FFMAX(height, inlink->h + inh);
         }
     }
 
-    s->desc = av_pix_fmt_desc_get(outlink->format);
-    if (!s->desc)
-        return AVERROR_BUG;
     s->nb_planes = av_pix_fmt_count_planes(outlink->format);
 
     outlink->w          = width;
     outlink->h          = height;
-    outlink->time_base  = time_base;
     outlink->frame_rate = frame_rate;
     outlink->sample_aspect_ratio = sar;
 
+    for (i = 1; i < s->nb_inputs; i++) {
+        AVFilterLink *inlink = ctx->inputs[i];
+        if (outlink->frame_rate.num != inlink->frame_rate.num ||
+            outlink->frame_rate.den != inlink->frame_rate.den) {
+            av_log(ctx, AV_LOG_VERBOSE,
+                    "Video inputs have different frame rates, output will be VFR\n");
+            outlink->frame_rate = av_make_q(1, 0);
+            break;
+        }
+    }
+
     if ((ret = ff_framesync_init(&s->fs, ctx, s->nb_inputs)) < 0)
         return ret;
 
@@ -199,7 +362,10 @@ static int config_output(AVFilterLink *outlink)
         in[i].after  = s->shortest ? EXT_STOP : EXT_INFINITY;
     }
 
-    return ff_framesync_configure(&s->fs);
+    ret = ff_framesync_configure(&s->fs);
+    outlink->time_base = s->fs.time_base;
+
+    return ret;
 }
 
 static av_cold void uninit(AVFilterContext *ctx)
@@ -209,6 +375,7 @@ static av_cold void uninit(AVFilterContext *ctx)
 
     ff_framesync_uninit(&s->fs);
     av_freep(&s->frames);
+    av_freep(&s->items);
 
     for (i = 0; i < ctx->nb_inputs; i++)
         av_freep(&ctx->input_pads[i].name);
@@ -252,7 +419,7 @@ AVFilter ff_vf_hstack = {
     .init          = init,
     .uninit        = uninit,
     .activate      = activate,
-    .flags         = AVFILTER_FLAG_DYNAMIC_INPUTS,
+    .flags         = AVFILTER_FLAG_DYNAMIC_INPUTS | AVFILTER_FLAG_SLICE_THREADS,
 };
 
 #endif /* CONFIG_HSTACK_FILTER */
@@ -272,7 +439,34 @@ AVFilter ff_vf_vstack = {
     .init          = init,
     .uninit        = uninit,
     .activate      = activate,
-    .flags         = AVFILTER_FLAG_DYNAMIC_INPUTS,
+    .flags         = AVFILTER_FLAG_DYNAMIC_INPUTS | AVFILTER_FLAG_SLICE_THREADS,
 };
 
 #endif /* CONFIG_VSTACK_FILTER */
+
+#if CONFIG_XSTACK_FILTER
+
+static const AVOption xstack_options[] = {
+    { "inputs", "set number of inputs", OFFSET(nb_inputs), AV_OPT_TYPE_INT, {.i64=2}, 2, INT_MAX, .flags = FLAGS },
+    { "layout", "set custom layout", OFFSET(layout), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, .flags = FLAGS },
+    { "shortest", "force termination when the shortest input terminates", OFFSET(shortest), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, .flags = FLAGS },
+    { "fill",  "set the color for unused pixels", OFFSET(fillcolor_str), AV_OPT_TYPE_STRING, {.str = "none"}, .flags = FLAGS },
+    { NULL },
+};
+
+AVFILTER_DEFINE_CLASS(xstack);
+
+AVFilter ff_vf_xstack = {
+    .name          = "xstack",
+    .description   = NULL_IF_CONFIG_SMALL("Stack video inputs into custom layout."),
+    .priv_size     = sizeof(StackContext),
+    .priv_class    = &xstack_class,
+    .query_formats = query_formats,
+    .outputs       = outputs,
+    .init          = init,
+    .uninit        = uninit,
+    .activate      = activate,
+    .flags         = AVFILTER_FLAG_DYNAMIC_INPUTS | AVFILTER_FLAG_SLICE_THREADS,
+};
+
+#endif /* CONFIG_XSTACK_FILTER */