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avformat/file: increase min/max packet size to 256k for written files 

Buffering more than one packet can be a huge performance improvement for
encoding files with small packets (e.g. wav) over SMB/CIFS.

Acked-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2017-06-04 04:25:43 +02:00
parent eeeb595c7f
commit db9e87dd8c
1 changed files with 5 additions and 0 deletions
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5
libavformat/file.c
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@ -229,6 +229,11 @@ static int file_open(URLContext *h, const char *filename, int flags)
h->is_streamed = !fstat(fd, &st) && S_ISFIFO(st.st_mode);
/* Buffer writes more than the default 32k to improve throughput especially
* with networked file systems */
if (!h->is_streamed && flags & AVIO_FLAG_WRITE)
h->min_packet_size = h->max_packet_size = 262144;
return 0;
}