lavfi/field: switch to filter_frame API

[ffmpeg] / libavfilter / vf_frei0r.c

diff --git a/libavfilter/vf_frei0r.c b/libavfilter/vf_frei0r.c
index 0ea7c04ef158fe0fd3db0682f0705bc067bdb6b5..0fb86b4267ebed3edd89ef9836ac5d54f594eb5a 100644 (file)
--- a/libavfilter/vf_frei0r.c
+++ b/libavfilter/vf_frei0r.c
@@ -204,13 +204,15 @@ static int set_params(AVFilterContext *ctx, const char *params)
     return 0;
 }
 
-static void *load_path(AVFilterContext *ctx, const char *prefix, const char *name)
+static int load_path(AVFilterContext *ctx, void **handle_ptr, const char *prefix, const char *name)
 {
-    char path[1024];
-
-    snprintf(path, sizeof(path), "%s%s%s", prefix, name, SLIBSUF);
+    char *path = av_asprintf("%s%s%s", prefix, name, SLIBSUF);
+    if (!path)
+        return AVERROR(ENOMEM);
     av_log(ctx, AV_LOG_DEBUG, "Looking for frei0r effect in '%s'\n", path);
-    return dlopen(path, RTLD_NOW|RTLD_LOCAL);
+    *handle_ptr = dlopen(path, RTLD_NOW|RTLD_LOCAL);
+    av_free(path);
+    return 0;
 }
 
 static av_cold int frei0r_init(AVFilterContext *ctx,
@@ -221,6 +223,7 @@ static av_cold int frei0r_init(AVFilterContext *ctx,
     f0r_get_plugin_info_f f0r_get_plugin_info;
     f0r_plugin_info_t *pi;
     char *path;
+    int ret = 0;
 
     /* see: http://frei0r.dyne.org/codedoc/html/group__pluglocations.html */
     if ((path = av_strdup(getenv("FREI0R_PATH")))) {
@@ -234,27 +237,41 @@ static av_cold int frei0r_init(AVFilterContext *ctx,
             /* add additional trailing slash in case it is missing */
             char *p1 = av_asprintf("%s/", p);
             if (!p1) {
-                av_free(path);
-                return AVERROR(ENOMEM);
+                ret = AVERROR(ENOMEM);
+                goto check_path_end;
             }
-            frei0r->dl_handle = load_path(ctx, p1, dl_name);
+            ret = load_path(ctx, &frei0r->dl_handle, p1, dl_name);
             av_free(p1);
+            if (ret < 0)
+                goto check_path_end;
             if (frei0r->dl_handle)
                 break;
         }
+
+    check_path_end:
         av_free(path);
+        if (ret < 0)
+            return ret;
     }
     if (!frei0r->dl_handle && (path = getenv("HOME"))) {
         char *prefix = av_asprintf("%s/.frei0r-1/lib/", path);
         if (!prefix)
             return AVERROR(ENOMEM);
-        frei0r->dl_handle = load_path(ctx, prefix, dl_name);
+        ret = load_path(ctx, &frei0r->dl_handle, prefix, dl_name);
         av_free(prefix);
+        if (ret < 0)
+            return ret;
+    }
+    if (!frei0r->dl_handle) {
+        ret = load_path(ctx, &frei0r->dl_handle, "/usr/local/lib/frei0r-1/", dl_name);
+        if (ret < 0)
+            return ret;
+    }
+    if (!frei0r->dl_handle) {
+        ret = load_path(ctx, &frei0r->dl_handle, "/usr/lib/frei0r-1/", dl_name);
+        if (ret < 0)
+            return ret;
     }
-    if (!frei0r->dl_handle)
-        frei0r->dl_handle = load_path(ctx, "/usr/local/lib/frei0r-1/", dl_name);
-    if (!frei0r->dl_handle)
-        frei0r->dl_handle = load_path(ctx, "/usr/lib/frei0r-1/", dl_name);
     if (!frei0r->dl_handle) {
         av_log(ctx, AV_LOG_ERROR, "Could not find module '%s'\n", dl_name);
         return AVERROR(EINVAL);
@@ -362,35 +379,34 @@ static int query_formats(AVFilterContext *ctx)
     return 0;
 }
 
-static int null_draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
-{
-    return 0;
-}
-
-static int end_frame(AVFilterLink *inlink)
+static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *in)
 {
     Frei0rContext *frei0r = inlink->dst->priv;
     AVFilterLink *outlink = inlink->dst->outputs[0];
-    AVFilterBufferRef  *inpicref =  inlink->cur_buf;
-    AVFilterBufferRef *outpicref = outlink->out_buf;
-    int ret;
-
-    frei0r->update(frei0r->instance, inpicref->pts * av_q2d(inlink->time_base) * 1000,
-                   (const uint32_t *)inpicref->data[0],
-                   (uint32_t *)outpicref->data[0]);
-    if ((ret = ff_draw_slice(outlink, 0, outlink->h, 1)) ||
-        (ret = ff_end_frame(outlink)) < 0)
-        return ret;
-    return 0;
+    AVFilterBufferRef *out;
+
+    out = ff_get_video_buffer(outlink, AV_PERM_WRITE, outlink->w, outlink->h);
+    if (!out) {
+        avfilter_unref_bufferp(&in);
+        return AVERROR(ENOMEM);
+    }
+    avfilter_copy_buffer_ref_props(out, in);
+
+    frei0r->update(frei0r->instance, in->pts * av_q2d(inlink->time_base) * 1000,
+                   (const uint32_t *)in->data[0],
+                   (uint32_t *)out->data[0]);
+
+    avfilter_unref_bufferp(&in);
+
+    return ff_filter_frame(outlink, out);
 }
 
 static const AVFilterPad avfilter_vf_frei0r_inputs[] = {
     {
         .name         = "default",
         .type         = AVMEDIA_TYPE_VIDEO,
-        .draw_slice   = null_draw_slice,
         .config_props = config_input_props,
-        .end_frame    = end_frame,
+        .filter_frame = filter_frame,
         .min_perms    = AV_PERM_READ
     },
     { NULL }
@@ -472,8 +488,6 @@ static int source_request_frame(AVFilterLink *outlink)
 {
     Frei0rContext *frei0r = outlink->src->priv;
     AVFilterBufferRef *picref = ff_get_video_buffer(outlink, AV_PERM_WRITE, outlink->w, outlink->h);
-    AVFilterBufferRef *buf_out;
-    int ret;
 
     if (!picref)
         return AVERROR(ENOMEM);
@@ -482,28 +496,10 @@ static int source_request_frame(AVFilterLink *outlink)
     picref->pts = frei0r->pts++;
     picref->pos = -1;
 
-    buf_out = avfilter_ref_buffer(picref, ~0);
-    if (!buf_out) {
-        ret = AVERROR(ENOMEM);
-        goto fail;
-    }
-
-    ret = ff_start_frame(outlink, buf_out);
-    if (ret < 0)
-        goto fail;
-
     frei0r->update(frei0r->instance, av_rescale_q(picref->pts, frei0r->time_base, (AVRational){1,1000}),
                    NULL, (uint32_t *)picref->data[0]);
-    ret = ff_draw_slice(outlink, 0, outlink->h, 1);
-    if (ret < 0)
-        goto fail;
-
-    ret = ff_end_frame(outlink);
-
-fail:
-    avfilter_unref_buffer(picref);
 
-    return ret;
+    return ff_filter_frame(outlink, picref);
 }
 
 static const AVFilterPad avfilter_vsrc_frei0r_src_outputs[] = {