So - not really that helpful and typically nothing to do with 'Access denied' at all. In reality it's 'file not found' but not with reference to the video file but the temporary file created by the transcoding (which is probably stdout).
Regardless of your OS version or type I found the single most useful thing to do is to insert the switch '-report' into the transcoder settings in Subsonic.
To help with your debugging do this:-
1. Go into Subsonic and head over to 'Settings' ... 'Players'
2. Delete all the players for this account except for just one.
3. In the settings for that one player under 'active transcodings' untick the mkv option leaving just flv/h264 checked (and mp3 audio).
4. 'Save'
5. next go to 'transcodings'
6. pick the flv/h264 transcode line (ffmpeg -ss %o -i %s -async 1 -b %bk -s %wx%h -ar 44100 -ac 2 -v 0 -f flv -c:v libx264 -preset superfast -threads 0 -)
7. insert '-report' before '-async' (ffmpeg -ss %o -i %s -report -async 1 -b %bk -s %wx%h -ar 44100 -ac 2 -v 0 -f flv -c:v libx264 -preset superfast -threads 0 -)
8. 'save'
Go back to your video and attempt to play. Get the error 'file not found....' - check that that the player reference is correct in the error message.
Now go to your backend Subsonic server and hunt down the log file generated by the ffmpeg. I have Windows XP and mine was in .../program files/subsonic/ffmpeg_<date_time>.log
The log file is great - it has every switch and how it's been interpreted and mine had this:-
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[graph 1 aresample for input stream 0:1 @ 02f37620] ch:2 chl:stereo fmt:s16p r:44100Hz -> ch:2 chl:stereo fmt:s16p r:44100Hz
[libx264 @ 0300db40] your cpu does not support SSE1, but x264 was compiled with asm
[libx264 @ 0300db40] to run x264, recompile without asm (configure --disable-asm)
Output #0, flv, to 'pipe:':
Stream #0:0, 0, 0/0: Video: h264, none, q=2-31, 128 kb/s, SAR 1:1 DAR 0:0, 25 fps
Metadata:
encoder : Lavc56.19.100 libx264
Stream #0:1, 0, 0/0: Audio: mp3, 0 channels, 128 kb/s
Metadata:
encoder : Lavc56.19.100 libmp3lame
Stream mapping:
Stream #0:0 -> #0:0 (mpeg2video (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (mp2 (native) -> mp3 (libmp3lame))
Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
[AVIOContext @ 02ffbf60] Statistics: 0 seeks, 0 writeouts
[AVIOContext @ 02f31060] Statistics: 1986704 bytes read, 5 seeks
Clue 1 was : at the bottom 'Error opening output stream' - ok so now I understand 'File not found' - but why.
Clue 2 was : above [libx264...] your CPU does not support SSE1 (whatever that is)
So for me the fix was simple. Back into Subsonic - take off the '-report' switch and remove the '-c:v libx264' switch
Now it works fine.
I've done no further testing at all - which I will do - but i thought this would help.
Mike
