Merge remote-tracking branch 'qatar/master'

[ffmpeg] / libavfilter / af_resample.c

diff --git a/libavfilter/af_resample.c b/libavfilter/af_resample.c
index c51f9d243b33570ac5fcf53a7ab85eed7546fa1d..a0c7e0e4a97f2eff3791ff775af1a6db498fd9b5 100644 (file)
--- a/libavfilter/af_resample.c
+++ b/libavfilter/af_resample.c
@@ -93,7 +93,11 @@ static int config_output(AVFilterLink *outlink)
 
     if (inlink->channel_layout == outlink->channel_layout &&
         inlink->sample_rate    == outlink->sample_rate    &&
-        inlink->format         == outlink->format)
+        (inlink->format        == outlink->format ||
+        (av_get_channel_layout_nb_channels(inlink->channel_layout)  == 1 &&
+         av_get_channel_layout_nb_channels(outlink->channel_layout) == 1 &&
+         av_get_planar_sample_fmt(inlink->format) ==
+         av_get_planar_sample_fmt(outlink->format))))
         return 0;
 
     if (!(s->avr = avresample_alloc_context()))
@@ -190,9 +194,10 @@ static int filter_samples(AVFilterLink *inlink, AVFilterBufferRef *buf)
                                      buf_out->linesize[0], nb_samples,
                                      buf->extended_data, buf->linesize[0],
                                      buf->audio->nb_samples);
-        if (ret < 0) {
+        if (ret <= 0) {
             avfilter_unref_buffer(buf_out);
-            goto fail;
+            if (ret < 0)
+                goto fail;
         }
 
         av_assert0(!avresample_available(s->avr));
@@ -226,6 +231,7 @@ static int filter_samples(AVFilterLink *inlink, AVFilterBufferRef *buf)
 fail:
         avfilter_unref_buffer(buf);
     } else {
+        buf->format = outlink->format;
         ret = ff_filter_samples(outlink, buf);
         s->got_output = 1;
     }
@@ -233,6 +239,26 @@ fail:
     return ret;
 }
 
+static const AVFilterPad avfilter_af_resample_inputs[] = {
+    {
+        .name           = "default",
+        .type           = AVMEDIA_TYPE_AUDIO,
+        .filter_samples = filter_samples,
+        .min_perms      = AV_PERM_READ
+    },
+    { NULL }
+};
+
+static const AVFilterPad avfilter_af_resample_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_AUDIO,
+        .config_props  = config_output,
+        .request_frame = request_frame
+    },
+    { NULL }
+};
+
 AVFilter avfilter_af_resample = {
     .name          = "resample",
     .description   = NULL_IF_CONFIG_SMALL("Audio resampling and conversion."),
@@ -241,14 +267,6 @@ AVFilter avfilter_af_resample = {
     .uninit         = uninit,
     .query_formats  = query_formats,
 
-    .inputs    = (const AVFilterPad[]) {{ .name            = "default",
-                                          .type            = AVMEDIA_TYPE_AUDIO,
-                                          .filter_samples  = filter_samples,
-                                          .min_perms       = AV_PERM_READ },
-                                        { .name = NULL}},
-    .outputs   = (const AVFilterPad[]) {{ .name          = "default",
-                                          .type          = AVMEDIA_TYPE_AUDIO,
-                                          .config_props  = config_output,
-                                          .request_frame = request_frame },
-                                        { .name = NULL}},
+    .inputs    = avfilter_af_resample_inputs,
+    .outputs   = avfilter_af_resample_outputs,
 };