stdin

commit e94a44543a96b13aa6a23efce2f0378a5479d530
Author: Rodger Combs <rodger.combs@gmail.com>
Date:   Wed Aug 20 15:38:12 2014 -0700

    avformat/nullenc: mark null as timestamp-nonstrict
    This avoids unnecessary error messages for null output

diff --git a/libavformat/nullenc.c b/libavformat/nullenc.c
index 7c08c39..58b88a1 100644
--- a/libavformat/nullenc.c
+++ b/libavformat/nullenc.c
@@ -32,5 +32,5 @@ AVOutputFormat ff_null_muxer = {
     .audio_codec       = AV_NE(AV_CODEC_ID_PCM_S16BE, AV_CODEC_ID_PCM_S16LE),
     .video_codec       = AV_CODEC_ID_RAWVIDEO,
     .write_packet      = null_write_packet,
-    .flags             = AVFMT_VARIABLE_FPS | AVFMT_NOFILE | AVFMT_NOTIMESTAMPS | AVFMT_RAWPICTURE,
+    .flags             = AVFMT_TS_NONSTRICT | AVFMT_VARIABLE_FPS | AVFMT_NOFILE | AVFMT_NOTIMESTAMPS | AVFMT_RAWPICTURE,
 };