From 565e4993c63f797e2d50ad2f1e8f62fdbe299666 Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Tue, 27 Nov 2012 07:49:45 +0100
Subject: lavfi: merge start_frame/draw_slice/end_frame

Any alleged performance benefits gained from the split are purely
mythological and do not justify added code complexity.
---
 libavfilter/fifo.c | 43 +++++++------------------------------------
 1 file changed, 7 insertions(+), 36 deletions(-)

(limited to 'libavfilter/fifo.c')

diff --git a/libavfilter/fifo.c b/libavfilter/fifo.c
index 1bfacafd50..88c44fe3b9 100644
--- a/libavfilter/fifo.c
+++ b/libavfilter/fifo.c
@@ -77,7 +77,6 @@ static int add_to_queue(AVFilterLink *inlink, AVFilterBufferRef *buf)
 {
     FifoContext *fifo = inlink->dst->priv;
 
-    inlink->cur_buf = NULL;
     fifo->last->next = av_mallocz(sizeof(Buf));
     if (!fifo->last->next) {
         avfilter_unref_buffer(buf);
@@ -99,16 +98,6 @@ static void queue_pop(FifoContext *s)
     s->root.next = tmp;
 }
 
-static int end_frame(AVFilterLink *inlink)
-{
-    return 0;
-}
-
-static int draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
-{
-    return 0;
-}
-
 /**
  * Move data pointers and pts offset samples forward.
  */
@@ -228,7 +217,7 @@ static int return_audio_frame(AVFilterContext *ctx)
         buf_out = s->buf_out;
         s->buf_out = NULL;
     }
-    return ff_filter_samples(link, buf_out);
+    return ff_filter_frame(link, buf_out);
 }
 
 static int request_frame(AVFilterLink *outlink)
@@ -241,27 +230,11 @@ static int request_frame(AVFilterLink *outlink)
             return ret;
     }
 
-    /* by doing this, we give ownership of the reference to the next filter,
-     * so we don't have to worry about dereferencing it ourselves. */
-    switch (outlink->type) {
-    case AVMEDIA_TYPE_VIDEO:
-        if ((ret = ff_start_frame(outlink, fifo->root.next->buf)) < 0 ||
-            (ret = ff_draw_slice(outlink, 0, outlink->h, 1)) < 0 ||
-            (ret = ff_end_frame(outlink)) < 0)
-            return ret;
-
+    if (outlink->request_samples) {
+        return return_audio_frame(outlink->src);
+    } else {
+        ret = ff_filter_frame(outlink, fifo->root.next->buf);
         queue_pop(fifo);
-        break;
-    case AVMEDIA_TYPE_AUDIO:
-        if (outlink->request_samples) {
-            return return_audio_frame(outlink->src);
-        } else {
-            ret = ff_filter_samples(outlink, fifo->root.next->buf);
-            queue_pop(fifo);
-        }
-        break;
-    default:
-        return AVERROR(EINVAL);
     }
 
     return ret;
@@ -272,9 +245,7 @@ static const AVFilterPad avfilter_vf_fifo_inputs[] = {
         .name             = "default",
         .type             = AVMEDIA_TYPE_VIDEO,
         .get_video_buffer = ff_null_get_video_buffer,
-        .start_frame      = add_to_queue,
-        .draw_slice       = draw_slice,
-        .end_frame        = end_frame,
+        .filter_frame     = add_to_queue,
         .rej_perms        = AV_PERM_REUSE2,
     },
     { NULL }
@@ -307,7 +278,7 @@ static const AVFilterPad avfilter_af_afifo_inputs[] = {
         .name             = "default",
         .type             = AVMEDIA_TYPE_AUDIO,
         .get_audio_buffer = ff_null_get_audio_buffer,
-        .filter_samples   = add_to_queue,
+        .filter_frame     = add_to_queue,
         .rej_perms        = AV_PERM_REUSE2,
     },
     { NULL }
-- 
cgit v1.2.3