Cache problem: DVB-T MPEG2 play over 802.11G WLAN, Win7 host
Posted: 29 May 2009 15:12
VLC 1.0.0 RC1 on Windows Vista SP2 64-bit
File to be played are DVB-T MPEG-2 and AC3 in MPG container, 6Mbit/s bitrate, stream contains little or no corruption
Network: 802.11g wireless network, 15Mbit/s average throughput, throughput very rarely drops 10Mbit/s
File is hosted on Windows 7 32-bit build 7100 network share
When I try to play the afore mentioned files with VLC (with the default cache value of 300ms) they will play for a few seconds before stuttering to a halt (buffer/cache empty). VLC is requesting data at only 4Mbit/s.
If I increase VLC's file cache value by a factor of 10 to 3000ms, the issue goes away. VLC is requesting data at stream bitrate, ie. 6MBit/s.
The media files play perfectly in Windows Media Player.
Messages:
File to be played are DVB-T MPEG-2 and AC3 in MPG container, 6Mbit/s bitrate, stream contains little or no corruption
Network: 802.11g wireless network, 15Mbit/s average throughput, throughput very rarely drops 10Mbit/s
File is hosted on Windows 7 32-bit build 7100 network share
When I try to play the afore mentioned files with VLC (with the default cache value of 300ms) they will play for a few seconds before stuttering to a halt (buffer/cache empty). VLC is requesting data at only 4Mbit/s.
If I increase VLC's file cache value by a factor of 10 to 3000ms, the issue goes away. VLC is requesting data at stream bitrate, ie. 6MBit/s.
The media files play perfectly in Windows Media Player.
Messages:
Code: Select all
main warning: output date isn't PTS date, requesting resampling (42266)
main warning: buffer is 42433 late, triggering upsampling
main warning: PTS is out of range (-9734), dropping buffer
main warning: PTS is out of range (-33734), dropping buffer
main warning: output date isn't PTS date, requesting resampling (55000)
main warning: PTS is out of range (-32734), dropping buffer
main warning: computed PTS is out of range (7833), clearing out
main warning: PTS is out of range (33266), dropping buffer
main warning: output PTS is out of range (52000), clearing out
main warning: PTS is out of range (9266), dropping buffer
main warning: PTS is out of range (-14734), dropping buffer
main warning: PTS is out of range (9266), dropping buffer
main warning: PTS is out of range (-14734), dropping buffer
main warning: PTS is out of range (-38734), dropping buffer
main warning: PTS is out of range (32266), dropping buffer
main warning: PTS is out of range (8266), dropping buffer
main warning: PTS is out of range (28266), dropping buffer
main warning: PTS is out of range (4266), dropping buffer