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authorwm4 <wm4@nowhere>2013-05-24 12:00:44 +0200
committerwm4 <wm4@nowhere>2013-05-26 17:01:54 +0200
commit3face4300ed01d0b9394efab4dfdcf997cc48704 (patch)
tree815eb20723cfd86a3f4b520872b4e2f07220fb14 /demux
parent137c1032faca14b922fc79d8813eabf095be9c35 (diff)
downloadmpv-3face4300ed01d0b9394efab4dfdcf997cc48704.tar.bz2
mpv-3face4300ed01d0b9394efab4dfdcf997cc48704.tar.xz
demux_lavf: print how many bytes are read by avformat_find_stream_info()
Can be helpful for debugging slow stream startup. Also add a comment about BIO_BUFFER_SIZE.
Diffstat (limited to 'demux')
-rw-r--r--demux/demux_lavf.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/demux/demux_lavf.c b/demux/demux_lavf.c
index 5eebffc2f9..2141d3ab0a 100644
--- a/demux/demux_lavf.c
+++ b/demux/demux_lavf.c
@@ -61,6 +61,8 @@ const m_option_t lavfdopts_conf[] = {
{NULL, NULL, 0, 0, 0, 0, NULL}
};
+// Should correspond to IO_BUFFER_SIZE in libavformat/aviobuf.c (not public)
+// libavformat (almost) always reads data in blocks of this size.
#define BIO_BUFFER_SIZE 32768
typedef struct lavf_priv {
@@ -524,6 +526,10 @@ static demuxer_t *demux_open_lavf(demuxer_t *demuxer)
"LAVF_header: av_find_stream_info() failed\n");
return NULL;
}
+
+ mp_msg(MSGT_HEADER, MSGL_V, "demux_lavf: avformat_find_stream_info() "
+ "finished after %"PRId64" bytes.\n", stream_tell(demuxer->stream));
+
/* Add metadata. */
while ((t = av_dict_get(avfc->metadata, "", t,
AV_DICT_IGNORE_SUFFIX)))