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.

1 files changed, 0 insertions, 47 deletions

diff --git a/libavfilter/audio.c b/libavfilter/audio.c
index 48e038b842..bbe12b211b 100644
--- a/libavfilter/audio.c
+++ b/libavfilter/audio.c
@@ -146,50 +146,3 @@ fail:
     av_freep(&samples);
     return NULL;
 }
-
-static int default_filter_samples(AVFilterLink *link,
-                                  AVFilterBufferRef *samplesref)
-{
-    return ff_filter_samples(link->dst->outputs[0], samplesref);
-}
-
-int ff_filter_samples(AVFilterLink *link, AVFilterBufferRef *samplesref)
-{
-    int (*filter_samples)(AVFilterLink *, AVFilterBufferRef *);
-    AVFilterPad *dst = link->dstpad;
-    AVFilterBufferRef *buf_out;
-
-    FF_DPRINTF_START(NULL, filter_samples); ff_dlog_link(NULL, link, 1);
-
-    if (!(filter_samples = dst->filter_samples))
-        filter_samples = default_filter_samples;
-
-    /* prepare to copy the samples if the buffer has insufficient permissions */
-    if ((dst->min_perms & samplesref->perms) != dst->min_perms ||
-        dst->rej_perms & samplesref->perms) {
-        av_log(link->dst, AV_LOG_DEBUG,
-               "Copying audio data in avfilter (have perms %x, need %x, reject %x)\n",
-               samplesref->perms, link->dstpad->min_perms, link->dstpad->rej_perms);
-
-        buf_out = ff_default_get_audio_buffer(link, dst->min_perms,
-                                              samplesref->audio->nb_samples);
-        if (!buf_out) {
-            avfilter_unref_buffer(samplesref);
-            return AVERROR(ENOMEM);
-        }
-        buf_out->pts                = samplesref->pts;
-        buf_out->audio->sample_rate = samplesref->audio->sample_rate;
-
-        /* Copy actual data into new samples buffer */
-        av_samples_copy(buf_out->extended_data, samplesref->extended_data,
-                        0, 0, samplesref->audio->nb_samples,
-                        av_get_channel_layout_nb_channels(link->channel_layout),
-                        link->format);
-
-        avfilter_unref_buffer(samplesref);
-    } else
-        buf_out = samplesref;
-
-    return filter_samples(link, buf_out);
-}
-