Llink:transcoding - Revision history

Lundman at 12:27, 6 October 2011

2011-10-06T12:27:24Z

← Older revision		Revision as of 12:27, 6 October 2011
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	The important parts here is '''-i "%s"''' would specify input file, in this case llink will replace '''%s''' with the actual URL to play. Note that ffmpeg appears to be very picky with argument order. Ie, specifying '''-i "%s"''' at the end will not work.		The important parts here is '''-i "%s"''' would specify input file, in this case llink will replace '''%s''' with the actual URL to play. Note that ffmpeg appears to be very picky with argument order. Ie, specifying '''-i "%s"''' at the end will not work.

	'''The final minus "-" is important. It tells ffmpeg to send the stream to stdout. Which is why you have to use ''-f mpegts'' to set the output format.''' ~~Note that stderr would end up in the stream too~~, ~~so with ffmpeg we~~ use '''-d''' to ~~make it completely silent~~.		'''The final minus "-" is important. It tells ffmpeg to send the stream to stdout. Which is why you have to use ''-f mpegts'' to set the output format.''' If you use '''mencoder''', use ''-o -'' to send stream to stdout. '''mencoder''' generally requires the use of ''-really-quiet'' as to not to pollute stdout.

	If you wish to see what ''User-Agent:'' headers your device send, use		If you wish to see what ''User-Agent:'' headers your device send, use
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	=== Playstation 3 ===		=== Playstation 3 ===

	Change MKV to MPG, appears to work for Scene standard tv.		'''ffmpeg''' Change MKV to MPG, appears to work for Scene standard tv. Almost plays 720p for me with 4 cores. Almost.
	TRANSCODE\|USERAGENT=playstation\|ext=*.mkv\|newext=.mpg\|args=./ffmpeg -d -i "%s" -threads 4 -vbsf h264_mp4toannexb -f mpegts -acodec libmp3lame -ar 48000 -ab 64k -ac 2 -vcodec copy -async 2 -		TRANSCODE\|USERAGENT=playstation\|ext=*.mkv\|newext=.mpg\|args=./ffmpeg -y -i "%s" -threads 4 -vbsf h264_mp4toannexb -f mpegts -acodec libmp3lame -ar 48000 -ab 64k -ac 2 -vcodec copy -async 2 -

			'''mencoder''' Change MKV to MPG, appears to work for Scene standard tv.
			TRANSCODE\|USERAGENT=\|ext=.mkv\|newext=.mpg\|args=./mencoder "%s" -really-quiet -oac lavc -ovc lavc -of mpeg -lavcopts vcodec=mpeg2video:keyint=1:vbitrate=200000:vrc_maxrate=9000:vrc_buf_size=1835:threads=4 -mpegopts muxrate=12000 -vf harddup -o -

	=== XBox 360 ===		=== XBox 360 ===
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	YXPlayer		YXPlayer
	User-Agent: Platinum/0.5.3.0, DLNADOC/1.50		User-Agent: Platinum/0.5.3.0, DLNADOC/1.50

			Playstation 3

			X-AV-Client-Info: av=5.0; cn="Sony Computer Entertainment Inc."; mn="PLAYSTATION 3"; mv="1.0";
			User-Agent: UPnP/1.0 DLNADOC/1.50

Lundman at 03:06, 5 October 2011

2011-10-05T03:06:24Z

← Older revision		Revision as of 03:06, 5 October 2011
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	PlugPlayer		PlugPlayer
	USER-AGENT: iPad/4.3.2, UPnP/1.0, PlugPlayer/3.8.0		USER-AGENT: iPad/4.3.2, UPnP/1.0, PlugPlayer/3.8.0

			YXPlayer
			User-Agent: Platinum/0.5.3.0, DLNADOC/1.50

Lundman at 03:05, 5 October 2011

2011-10-05T03:05:53Z

← Older revision		Revision as of 03:05, 5 October 2011
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	AcePlayer sends		AcePlayer sends
	Absolutely nothing :(		Absolutely nothing :(

			MLPlayer Lite
			USER-AGENT: Darwin/11.0.0 UPnP/1.0 DLNADOC/1.50

			PlugPlayer
			USER-AGENT: iPad/4.3.2, UPnP/1.0, PlugPlayer/3.8.0

Lundman at 11:54, 30 September 2011

2011-09-30T11:54:16Z

← Older revision		Revision as of 11:54, 30 September 2011
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	=== More here ===		=== More here ===

			EyeCon sends
			User-Agent: Eyecon ControlPoint 2.0 \| DMC/1.0

			AcePlayer sends
			Absolutely nothing :(

Lundman at 09:32, 30 September 2011

2011-09-30T09:32:10Z

← Older revision		Revision as of 09:32, 30 September 2011
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	If you wish to see what ''User-Agent:'' headers your device send, use		If you wish to see what ''User-Agent:'' headers your device send, use

	./llink -d -v 4		./llink -d -v 16
			[skin] checking for matching transcoders to user-agent 'Platinum/0.5.3.0, DLNADOC/1.50'
			[skin] matches 'latinum' (ext '*.avi')

	As far as transcoding goes, we do almost none. Video codec (h264) and audio of the ''.mkv'' file is copied without changing. We are just changing transport encapsulation from ''.mkv'' to ''mpeg-ts''. Very low CPU in this case.		As far as transcoding goes, we do almost none. Video codec (h264) and audio of the ''.mkv'' file is copied without changing. We are just changing transport encapsulation from ''.mkv'' to ''mpeg-ts''. Very low CPU in this case.

Lundman at 09:25, 30 September 2011

2011-09-30T09:25:09Z

← Older revision		Revision as of 09:25, 30 September 2011
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	To test your own transcoding argument, I would recommend running the command line yourself, like this:		To test your own transcoding argument, I would recommend running the command line yourself, like this:

	./ffmpeg -i "http://localhost:8001/path/to/video.mkv" -threads 4 -vbsf h264_mp4toannexb -f mpegts -acodec libmp3lame -ar 48000 -ab 64k -ac 2 -vcodec copy -async 2 - > test-encode.mpg		./ffmpeg -i "http ://localhost:8001/path/to/video.mkv" -threads 4 -vbsf h264_mp4toannexb -f mpegts -acodec libmp3lame -ar 48000 -ab 64k -ac 2 -vcodec copy -async 2 - > test-encode.mpg

	I removed the -d so you now get ''stderr'' output and can see any encoding errors. I keep the "-" to send to stream, and sent it to a file "> test-encode.mpg". This is to make sure you are using stream, and not doing formats that can not stream. (Like mp4).		I removed the -d so you now get ''stderr'' output and can see any encoding errors. I keep the "-" to send to stream, and sent it to a file "> test-encode.mpg". This is to make sure you are using stream, and not doing formats that can not stream. (Like mp4).

Lundman at 09:20, 30 September 2011

2011-09-30T09:20:34Z

← Older revision		Revision as of 09:20, 30 September 2011
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	llink will execute		llink will execute

	'''./ffmpeg -d -i "http://localhost:8001/path/to/video.mkv" -threads 4 -vbsf h264_mp4toannexb -f mpegts -acodec libmp3lame -ar 48000 -ab 64k -ac 2 -vcodec copy -async 2 -'''		'''./ffmpeg -d -i "http ://localhost:8001/path/to/video.mkv" -threads 4 -vbsf h264_mp4toannexb -f mpegts -acodec libmp3lame -ar 48000 -ab 64k -ac 2 -vcodec copy -async 2 -'''

	The important parts here is '''-i "%s"''' would specify input file, in this case llink will replace '''%s''' with the actual URL to play. Note that ffmpeg appears to be very picky with argument order. Ie, specifying '''-i "%s"''' at the end will not work.		The important parts here is '''-i "%s"''' would specify input file, in this case llink will replace '''%s''' with the actual URL to play. Note that ffmpeg appears to be very picky with argument order. Ie, specifying '''-i "%s"''' at the end will not work.

Lundman at 09:13, 30 September 2011

2011-09-30T09:13:33Z

← Older revision		Revision as of 09:13, 30 September 2011
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	'''The final minus "-" is important. It tells ffmpeg to send the stream to stdout. Which is why you have to use ''-f mpegts'' to set the output format.''' Note that stderr would end up in the stream too, so with ffmpeg we use '''-d''' to make it completely silent.		'''The final minus "-" is important. It tells ffmpeg to send the stream to stdout. Which is why you have to use ''-f mpegts'' to set the output format.''' Note that stderr would end up in the stream too, so with ffmpeg we use '''-d''' to make it completely silent.

			If you wish to see what ''User-Agent:'' headers your device send, use

			./llink -d -v 4

	As far as transcoding goes, we do almost none. Video codec (h264) and audio of the ''.mkv'' file is copied without changing. We are just changing transport encapsulation from ''.mkv'' to ''mpeg-ts''. Very low CPU in this case.		As far as transcoding goes, we do almost none. Video codec (h264) and audio of the ''.mkv'' file is copied without changing. We are just changing transport encapsulation from ''.mkv'' to ''mpeg-ts''. Very low CPU in this case.

Lundman at 06:39, 30 September 2011

2011-09-30T06:39:24Z

← Older revision		Revision as of 06:39, 30 September 2011
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	So, a '''TRANSCODE''' line might look something like:		So, a '''TRANSCODE''' line might look something like:

	TRANSCODE\|~~SERVER~~=playstation\|ext=*.mkv\|newext=.mpg\|args=./ffmpeg -d -i "%s" -threads 4 -vbsf h264_mp4toannexb -f mpegts -acodec libmp3lame -ar 48000 -ab 64k -ac 2 -vcodec copy -async 2 -		TRANSCODE\|USERAGENT=playstation\|ext=*.mkv\|newext=.mpg\|args=./ffmpeg -d -i "%s" -threads 4 -vbsf h264_mp4toannexb -f mpegts -acodec libmp3lame -ar 48000 -ab 64k -ac 2 -vcodec copy -async 2 -

	In this case, we detect a PS3 if the ''~~SERVER~~:'' tag contains "playstation" anywhere in it (case-insensitive).		In this case, we detect a PS3 if the ''User-Agent:'' tag contains "playstation" anywhere in it (case-insensitive).
	We only change files of ''.mkv'' type.		We only change files of ''.mkv'' type.
	We will produce new files of ''.mpg'' type. (MIME type is then based on ''.mpg'' and becomes ''video/mpeg''.)		We will produce new files of ''.mpg'' type. (MIME type is then based on ''.mpg'' and becomes ''video/mpeg''.)

Lundman at 08:30, 29 September 2011

2011-09-29T08:30:40Z

← Older revision		Revision as of 08:30, 29 September 2011
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	To define where to find the transcode binary, I have been using ''ffmpeg'', but other programs could probably be used. In fact, one day one might be able to pass it to a "transcode -for ps3" program, wouldn't that be nice.		To define where to find the transcode binary, I have been using ''ffmpeg'', but other programs could probably be used. In fact, one day one might be able to pass it to a "transcode -for ps3" program, wouldn't that be nice.

	~~TRANSCODE\|FFMPEG=./ffmpeg~~

	So, a '''TRANSCODE''' line might look something like:		So, a '''TRANSCODE''' line might look something like: