lavfi: add video buffer sink, and use it in avtools

Also add the public interface libavfilter/buffersink.h.

Based on a commit by Stefano Sabatini.

1 files changed, 0 insertions, 68 deletions

diff --git a/cmdutils.c b/cmdutils.c
index 6d2e97f694..3cd11ca241 100644
--- a/cmdutils.c
+++ b/cmdutils.c
@@ -1021,74 +1021,6 @@ AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
     return opts;
 }
 
-#if CONFIG_AVFILTER
-
-static int sink_init(AVFilterContext *ctx, const char *args, void *opaque)
-{
-    SinkContext *priv = ctx->priv;
-
-    if (!opaque)
-        return AVERROR(EINVAL);
-    *priv = *(SinkContext *)opaque;
-
-    return 0;
-}
-
-static void null_end_frame(AVFilterLink *inlink) { }
-
-static int sink_query_formats(AVFilterContext *ctx)
-{
-    SinkContext *priv = ctx->priv;
-
-    if (priv->pix_fmts)
-        avfilter_set_common_formats(ctx, avfilter_make_format_list(priv->pix_fmts));
-    else
-        avfilter_default_query_formats(ctx);
-    return 0;
-}
-
-AVFilter sink = {
-    .name      = "sink",
-    .priv_size = sizeof(SinkContext),
-    .init      = sink_init,
-
-    .query_formats = sink_query_formats,
-
-    .inputs    = (AVFilterPad[]) {{ .name          = "default",
-                                    .type          = AVMEDIA_TYPE_VIDEO,
-                                    .end_frame     = null_end_frame,
-                                    .min_perms     = AV_PERM_READ, },
-                                  { .name = NULL }},
-    .outputs   = (AVFilterPad[]) {{ .name = NULL }},
-};
-
-int get_filtered_video_frame(AVFilterContext *ctx, AVFrame *frame,
-                             AVFilterBufferRef **picref_ptr, AVRational *tb)
-{
-    int ret;
-    AVFilterBufferRef *picref;
-
-    if ((ret = avfilter_request_frame(ctx->inputs[0])) < 0)
-        return ret;
-    if (!(picref = ctx->inputs[0]->cur_buf))
-        return AVERROR(ENOENT);
-    *picref_ptr = picref;
-    ctx->inputs[0]->cur_buf = NULL;
-    *tb = ctx->inputs[0]->time_base;
-
-    memcpy(frame->data,     picref->data,     sizeof(frame->data));
-    memcpy(frame->linesize, picref->linesize, sizeof(frame->linesize));
-    frame->interlaced_frame    = picref->video->interlaced;
-    frame->top_field_first     = picref->video->top_field_first;
-    frame->key_frame           = picref->video->key_frame;
-    frame->pict_type           = picref->video->pict_type;
-    frame->sample_aspect_ratio = picref->video->pixel_aspect;
-
-    return 1;
-}
-
-#endif /* CONFIG_AVFILTER */
-
 void *grow_array(void *array, int elem_size, int *size, int new_size)
 {
     if (new_size >= INT_MAX / elem_size) {