I am trancoding to x264 inside an MP4 container. If a video is small enough say about 4 or 5 minutes in length, the clients will begin to play in about 15 or so seconds.. however If I try to transcode a movie say 2 hours in length, then it wont. I have to manually kill the ffmpeg process thats running, which then causes the client to make a third range request which then for some reason begins to play perfectly.
Here is the first two requests before I run killall ffmpeg..
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[2013-08-15 06:13:52,603] INFO StreamController - Got range: Range[0,9223372036854775807]
[2013-08-15 06:13:52,603] INFO PlayQueueInputStream - guest listening to "Billy.Madison.1995/billy.madison.1995.dvdrip.xvid.particle.avi"
[2013-08-15 06:13:52,605] DEBUG TranscodeInputStream - Starting transcoder: [/var/subsonic/transcode/ffmpeg] [-y] [-ss] [0] [-i] [/media/raidone/Media/Movies/SD/Billy.Madison.1995/billy.madison.1995.dvdrip.xvid.particle.avi] [-async] [1] [-f] [mp4] [-avioflags] [direct] [-fflags] [nobuffer] [-vsync] [1] [-rtbufsize] [1M] [-g] [25] [-sc_threshold] [0] [-analyzeduration] [0] [-threads] [0] [-acodec] [libfdk_aac] [-b:a] [96k] [-ac] [2] [-vcodec] [libx264] [-preset] [medium] [-profile:v] [high] [-b:v] [1000k] [-s] [1280x720] [-movflags] [frag_keyframe+empty_moov] [-loglevel] [quiet] [-]
[2013-08-15 06:13:53,333] INFO StreamController - Got range: Range[673874996,9223372036854775807]
[2013-08-15 06:13:53,333] INFO PlayQueueInputStream - guest listening to "Billy.Madison.1995/billy.madison.1995.dvdrip.xvid.particle.avi"
[2013-08-15 06:13:53,334] DEBUG TranscodeInputStream - Starting transcoder: [/var/subsonic/transcode/ffmpeg] [-y] [-ss] [0] [-i] [/media/raidone/Media/Movies/SD/Billy.Madison.1995/billy.madison.1995.dvdrip.xvid.particle.avi] [-async] [1] [-f] [mp4] [-avioflags] [direct] [-fflags] [nobuffer] [-vsync] [1] [-rtbufsize] [1M] [-g] [25] [-sc_threshold] [0] [-analyzeduration] [0] [-threads] [0] [-acodec] [libfdk_aac] [-b:a] [96k] [-ac] [2] [-vcodec] [libx264] [-preset] [medium] [-profile:v] [high] [-b:v] [1000k] [-s] [1280x720] [-movflags] [frag_keyframe+empty_moov] [-loglevel] [quiet] [-]
[2013-08-15 06:13:54,180] WARN RESTFilter - Error in REST API: EofException
org.mortbay.jetty.EofException
at org.mortbay.jetty.HttpGenerator.flush(HttpGenerator.java:760)
...
at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442)
Caused by: java.io.IOException: Broken pipe
at sun.nio.ch.FileDispatcher.write0(Native Method)
---
at org.mortbay.jetty.HttpGenerator.flush(HttpGenerator.java:693)
... 68 more
At this point all clients have a black screen.. but if I run killall ffmpeg from the cli, a third range request is made by each client automatically.. this time the range is different
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[2013-08-15 06:17:47,043] INFO StreamController - Got range: Range[1237,9223372036854775807]
[2013-08-15 06:17:47,043] INFO PlayQueueInputStream - guest listening to "Billy.Madison.1995/billy.madison.1995.dvdrip.xvid.particle.avi"
[2013-08-15 06:17:47,045] DEBUG TranscodeInputStream - Starting transcoder: [/var/subsonic/transcode/ffmpeg] [-y] [-ss] [0] [-i] [/media/raidone/Media/Movies/SD/Billy.Madison.1995/billy.madison.1995.dvdrip.xvid.particle.avi] [-async] [1] [-f] [mp4] [-avioflags] [direct] [-fflags] [nobuffer] [-vsync] [1] [-rtbufsize] [1M] [-g] [25] [-sc_threshold] [0] [-analyzeduration] [0] [-threads] [0] [-acodec] [libfdk_aac] [-b:a] [96k] [-ac] [2] [-vcodec] [libx264] [-preset] [medium] [-profile:v] [high] [-b:v] [1000k] [-s] [1280x720] [-movflags] [frag_keyframe+empty_moov] [-loglevel] [quiet] [-]
once this happens.. the video begins to play perfectly in each of the clients.
interestingly enough.. if I transcode to Matroska, the browsers and each of the clients begin to play perfectly almost immediately. and even more weird.. heres the output for transcoding to mkv
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[2013-08-15 07:11:02,013] INFO PlayQueueInputStream - guest listening to "Finding.Nemo.2003/failed-fn.dvdrip.xvid.repack.avi"
[2013-08-15 07:11:02,014] DEBUG TranscodeInputStream - Starting transcoder: [/var/subsonic/transcode/ffmpeg] [-y] [-ss] [0] [-i] [/media/raidone/Media/Movies/SD/Finding.Nemo.2003/failed-fn.dvdrip.xvid.repack.avi] [-async] [1] [-f] [matroska] [-avioflags] [direct] [-fflags] [nobuffer] [-vsync] [1] [-rtbufsize] [1M] [-g] [25] [-sc_threshold] [0] [-analyzeduration] [0] [-threads] [0] [-acodec] [libfdk_aac] [-b:a] [96k] [-ac] [2] [-vcodec] [libx264] [-preset] [medium] [-profile:v] [high] [-b:v] [1000k] [-s] [1280x720] [-loglevel] [quiet] [-]
[2013-08-15 07:11:02,330] INFO StreamController - Got range: Range[0,9223372036854775807]
[2013-08-15 07:11:02,330] INFO PlayQueueInputStream - guest listening to "Finding.Nemo.2003/failed-fn.dvdrip.xvid.repack.avi"
[2013-08-15 07:11:02,331] DEBUG TranscodeInputStream - Starting transcoder: [/var/subsonic/transcode/ffmpeg] [-y] [-ss] [0] [-i] [/media/raidone/Media/Movies/SD/Finding.Nemo.2003/failed-fn.dvdrip.xvid.repack.avi] [-async] [1] [-f] [matroska] [-avioflags] [direct] [-fflags] [nobuffer] [-vsync] [1] [-rtbufsize] [1M] [-g] [25] [-sc_threshold] [0] [-analyzeduration] [0] [-threads] [0] [-acodec] [libfdk_aac] [-b:a] [96k] [-ac] [2] [-vcodec] [libx264] [-preset] [medium] [-profile:v] [high] [-b:v] [1000k] [-s] [1280x720] [-loglevel] [quiet] [-]
[2013-08-15 07:11:02,616] WARN RESTFilter - Error in REST API: EofException
org.mortbay.jetty.EofException
at org.mortbay.jetty.HttpGenerator.flush(HttpGenerator.java:760)
---
at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442)
Caused by: java.io.IOException: Broken pipe
at sun.nio.ch.FileDispatcher.write0(Native Method)
---
at org.mortbay.jetty.HttpGenerator.flush(HttpGenerator.java:693)
... 67 more
my transcode steps
MP4 (Fragmented)
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ffmpeg -y -ss %o -i %s -async 1 -f mp4 -avioflags direct -fflags nobuffer -vsync 1 -rtbufsize 1M -g 25 -sc_threshold 0 -analyzeduration 0 -threads 0 -acodec libfdk_aac -b:a 96k -ac 2 -vcodec libx264 -preset medium -profile:v high -b:v %bk -s %wx%h -movflags frag_keyframe+empty_moov -loglevel quiet -
Matroska
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ffmpeg -y -ss %o -i %s -async 1 -f matroska -avioflags direct -fflags nobuffer -vsync 1 -rtbufsize 1M -g 25 -sc_threshold 0 -analyzeduration 0 -threads 0 -acodec libfdk_aac -b:a 96k -ac 2 -vcodec libx264 -preset medium -profile:v high -b:v %bk -s %wx%h -loglevel quiet -
It seems to me as though the ffmpeg process that is running before I run killall is running and piping to stdout even though the client has already disconnected ?
if anyone wants to test the streams themselves.. i can provide the urls via pm.
cheers