Merge commit 'dccac759d39e761398d3d4172ae0b98c0186efa5' into release/1.1

* commit 'dccac759d39e761398d3d4172ae0b98c0186efa5':
  lavr: allocate the resampling buffer with a positive size

Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavresample/utils.c

@@ -117,7 +117,7 @@ int avresample_open(AVAudioResampleContext *avr)
     }
     if (avr->resample_needed) {
         avr->resample_out_buffer = ff_audio_data_alloc(avr->out_channels,
-                                                       0, avr->internal_sample_fmt,
+                                                       1024, avr->internal_sample_fmt,
                                                        "resample_out_buffer");
         if (!avr->resample_out_buffer) {
             ret = AVERROR(EINVAL);