MPD for Kindle : AAC/FLAC/MP3/OGG/... local and streaming, + Shuffle mode !

xbqo · 02-15-2012, 10:08 AM

//The title is copied from the mplayer post....

It takes me about two days to get a working mpd, so I just put the result here to save others' effort.
You will need launchpad if you don't want to usbnetwork into your kindle.
The binary I compiled *should* support aac/flac/ape/ac3/mp3/ogg/wav/wma/mpc playback (haven't tested all), streaming from http/mms protocol and last.fm (haven't tested), and playing files in zip/bzip2 archives (haven't tested).
The launchpad config file contained in the package should be easy to understand. If you are familiar with mpd, you could add a couple of new commands yourself.

Typical mpd cpu usage is around 5%~10% while playing, if resample is needed, it will go up to like 20%~40%.
If you don't want this, you could change this line in mpd.conf:

Code:

samplerate_converter		"2"

to

Code:

samplerate_converter		"internal"

After you downloaded the package, put mpd/mpc/mpd.conf in 'mpd' directory, mpd.ini in 'launchpad' directory, and then create a '.mpd' directory, it should work.

Feedback is welcome, but I don't guarantee I will fix any of your problems.

Update:
//In case you are not a linux user and/or not familiar with mpd:

If you want to custom your mpd configuration, there is a manual here: http://linux.die.net/man/5/mpd.conf

If you want to know how to use mpc, there is a manual here: http://linux.die.net/man/1/mpc

My launchpad config file actually lacks some important command, like add songs to the playlist:

Code:

mpc ls | xargs mpc add

giorgio130 · 02-15-2012, 11:02 AM

I didn't know about the last.fm thing! Do you think that making it work with the integrated 3g would be seen as 'abuse' of the service? It would be great though, unlimited songs while on the go with no storage use...

geekmaster · 02-15-2012, 11:43 AM

Consuming 3g traffic with streaming media is not a good idea when amazon is paying for that traffic.

Just put your songs on the USB Drive and play them from there.

giorgio130 · 02-15-2012, 04:03 PM

Or better, I'll do it while I'm home and I have wifi available:-)

giorgio130 · 02-17-2012, 09:42 AM

Tested local file playing and it works! As a note, spaces in filenames cause errors. Could you have a look at that?

giorgio130 · 02-18-2012, 08:34 AM

However I'm failing with last.fm streaming (over wifi):

Code:

Feb 18 14:20 : client: command_process_list: process command "load "lastfm://artist/Beatles""
Feb 18 14:20 : session='d14d1ca438f755643e1df685f9f3f22e'
Feb 18 14:20 : playlist: queue song 1:"http://play.last.fm/user/7127820745a4fb6619a6ba172e97e0a8.mp3"
Feb 18 14:20 : client: command_process_list: command returned 0
Feb 18 14:20 : client: [1] process command list returned 0
Feb 18 14:20 : client: [1] expired
Feb 18 14:20 : client: [1] closed
Feb 18 14:20 : client: [2] opened from localhost
Feb 18 14:20 : client: [2] process command "next"
Feb 18 14:20 : playlist: play 1:"http://play.last.fm/user/7127820745a4fb6619a6ba172e97e0a8.mp3"
Feb 18 14:20 : output: closed plugin=alsa name="My ALSA Device"
Feb 18 14:20 : decoder_thread: clearing mixramp tags
Feb 18 14:20 : decoder_control: mixramp_start = NULL
Feb 18 14:20 : decoder_control: mixramp_prev_end = NULL
Feb 18 14:20 : client: [2] command returned 0
Feb 18 14:20 : playlist: queue song 2:"http://play.last.fm/user/2fe0aea885f26c704d9eb66af5464483.mp3"
Feb 18 14:20 : client: [2] process command list
Feb 18 14:20 : client: command_process_list: process command "status"
Feb 18 14:20 : client: command_process_list: command returned 0
Feb 18 14:20 : client: command_process_list: process command "currentsong"
Feb 18 14:20 : client: command_process_list: command returned 0
Feb 18 14:20 : client: [2] process command list returned 0
Feb 18 14:20 : client: [2] expired
Feb 18 14:20 : client: [2] closed
Feb 18 14:20 : ffmpeg: detected input format 'mp3' (MPEG audio layer 2/3)
Feb 18 14:20 : ffmpeg/mp3: Estimating duration from bitrate, this may be inaccurate
Feb 18 14:20 : decoder: audio_format=44100:16:2, seekable=true
Feb 18 14:20 : ffmpeg/mp3: incomplete frame
Feb 18 14:20 : ffmpeg: decoding failed
Feb 18 14:21 : client: [3] opened from localhost
Feb 18 14:21 : client: [3] process command "next"
Feb 18 14:21 : playlist: play 2:"http://play.last.fm/user/2fe0aea885f26c704d9eb66af5464483.mp3"
Feb 18 14:21 : decoder_thread: clearing mixramp tags
Feb 18 14:21 : decoder_control: mixramp_start = NULL
Feb 18 14:21 : decoder_control: mixramp_prev_end = NULL
Feb 18 14:21 : client: [3] command returned 0
Feb 18 14:21 : playlist: queue song 3:"http://play.last.fm/user/0f0476e52a4760a6253b7babea85fea9.mp3"
Feb 18 14:21 : client: [3] process command list
Feb 18 14:21 : client: command_process_list: process command "status"
Feb 18 14:21 : client: command_process_list: command returned 0
Feb 18 14:21 : client: command_process_list: process command "currentsong"
Feb 18 14:21 : client: command_process_list: command returned 0
Feb 18 14:21 : client: [3] process command list returned 0
Feb 18 14:21 : client: [3] expired
Feb 18 14:21 : client: [3] closed
Feb 18 14:21 : ffmpeg: detected input format 'mp3' (MPEG audio layer 2/3)
Feb 18 14:21 : ffmpeg/mp3: Estimating duration from bitrate, this may be inaccurate
Feb 18 14:21 : decoder: audio_format=44100:16:2, seekable=true
Feb 18 14:21 : ffmpeg/mp3: incomplete frame
Feb 18 14:21 : ffmpeg: decoding failed

that's the relevant part of the log. Do you know how I can get it to be more verbose?

xbqo · 02-24-2012, 05:55 AM

Quote:

Originally Posted by giorgio130

However I'm failing with last.fm streaming (over wifi):

Code:

Feb 18 14:20 : client: command_process_list: process command "load "lastfm://artist/Beatles""
Feb 18 14:20 : session='d14d1ca438f755643e1df685f9f3f22e'
Feb 18 14:20 : playlist: queue song 1:"http://play.last.fm/user/7127820745a4fb6619a6ba172e97e0a8.mp3"
Feb 18 14:20 : client: command_process_list: command returned 0
Feb 18 14:20 : client: [1] process command list returned 0
Feb 18 14:20 : client: [1] expired
Feb 18 14:20 : client: [1] closed
Feb 18 14:20 : client: [2] opened from localhost
Feb 18 14:20 : client: [2] process command "next"
Feb 18 14:20 : playlist: play 1:"http://play.last.fm/user/7127820745a4fb6619a6ba172e97e0a8.mp3"
Feb 18 14:20 : output: closed plugin=alsa name="My ALSA Device"
Feb 18 14:20 : decoder_thread: clearing mixramp tags
Feb 18 14:20 : decoder_control: mixramp_start = NULL
Feb 18 14:20 : decoder_control: mixramp_prev_end = NULL
Feb 18 14:20 : client: [2] command returned 0
Feb 18 14:20 : playlist: queue song 2:"http://play.last.fm/user/2fe0aea885f26c704d9eb66af5464483.mp3"
Feb 18 14:20 : client: [2] process command list
Feb 18 14:20 : client: command_process_list: process command "status"
Feb 18 14:20 : client: command_process_list: command returned 0
Feb 18 14:20 : client: command_process_list: process command "currentsong"
Feb 18 14:20 : client: command_process_list: command returned 0
Feb 18 14:20 : client: [2] process command list returned 0
Feb 18 14:20 : client: [2] expired
Feb 18 14:20 : client: [2] closed
Feb 18 14:20 : ffmpeg: detected input format 'mp3' (MPEG audio layer 2/3)
Feb 18 14:20 : ffmpeg/mp3: Estimating duration from bitrate, this may be inaccurate
Feb 18 14:20 : decoder: audio_format=44100:16:2, seekable=true
Feb 18 14:20 : ffmpeg/mp3: incomplete frame
Feb 18 14:20 : ffmpeg: decoding failed
Feb 18 14:21 : client: [3] opened from localhost
Feb 18 14:21 : client: [3] process command "next"
Feb 18 14:21 : playlist: play 2:"http://play.last.fm/user/2fe0aea885f26c704d9eb66af5464483.mp3"
Feb 18 14:21 : decoder_thread: clearing mixramp tags
Feb 18 14:21 : decoder_control: mixramp_start = NULL
Feb 18 14:21 : decoder_control: mixramp_prev_end = NULL
Feb 18 14:21 : client: [3] command returned 0
Feb 18 14:21 : playlist: queue song 3:"http://play.last.fm/user/0f0476e52a4760a6253b7babea85fea9.mp3"
Feb 18 14:21 : client: [3] process command list
Feb 18 14:21 : client: command_process_list: process command "status"
Feb 18 14:21 : client: command_process_list: command returned 0
Feb 18 14:21 : client: command_process_list: process command "currentsong"
Feb 18 14:21 : client: command_process_list: command returned 0
Feb 18 14:21 : client: [3] process command list returned 0
Feb 18 14:21 : client: [3] expired
Feb 18 14:21 : client: [3] closed
Feb 18 14:21 : ffmpeg: detected input format 'mp3' (MPEG audio layer 2/3)
Feb 18 14:21 : ffmpeg/mp3: Estimating duration from bitrate, this may be inaccurate
Feb 18 14:21 : decoder: audio_format=44100:16:2, seekable=true
Feb 18 14:21 : ffmpeg/mp3: incomplete frame
Feb 18 14:21 : ffmpeg: decoding failed

that's the relevant part of the log. Do you know how I can get it to be more verbose?

For last.fm, you need to change the mpd configuration file (mpd.conf)
See: http://mpd.wikia.com/wiki/Last.fm_Radio

olorin · 03-02-2012, 02:57 PM

Hello there!

Could you enable TCP support? I tried using mpd+ncmpc from optware with kindle terminal emulator. Unfortuanetly mpd was broken, but ncmpc looked pretty good. As I see, ncmpc requires TCP connection (and you can manage mpd) from other host via wifi

Bug report: in config for launchpad there's

Code:

mpc ls | xargs mpc add

It doesn't work for music files with spaces in filenames.

Code:

mpc ls | mpc add

works well (mpc add expects \n separated filenames on STDIN if not specified in params).

Also I think that SIGTERM should be used instead of SIGKILL(9) in launchpad configuration.

olorin · 03-10-2012, 08:08 AM

As for TCP thing this works well for now

Code:

socat tcp-l:6600,reuseaddr,fork unix:/var/run/.mpd_socket

socat and ncmpc are from optware.

cts · 03-15-2012, 07:59 AM

Hi xbqo,

do you think you could be so kind as to hint me on your crosscompile toolchain, please? I'd love to jump into this but the infos I have found are confusing at beast

Thanks!
Christian.

xbqo · 03-16-2012, 04:48 AM

Quote:

Originally Posted by cts

Hi xbqo,

do you think you could be so kind as to hint me on your crosscompile toolchain, please? I'd love to jump into this but the infos I have found are confusing at beast

Thanks!
Christian.

I just followed NiLuJe's instruction, which can be found here: https://www.mobileread.com/forums/showthread.php?t=88004

Additional note: You must choose softfp as the float point interface.

cts · 03-16-2012, 07:28 AM

Quote:

Originally Posted by xbqo

I just followed NiLuJe's instruction, which can be found here: https://www.mobileread.com/forums/showthread.php?t=88004

Additional note: You must choose softfp as the float point interface.

Thank you, will do that right away!

NiLuJe · 03-16-2012, 12:50 PM

In case it wasn't clear, my terminal log for the ct-ng build is in the kindle-x-compile-tc.tar.gz file attached in that post

.

cts · 03-23-2012, 05:45 AM

Hi NiLuJe,

could you turn your installation (gentoo, I assume) into a VM? I am having trouble getting my compile-environment right and my Gentoo is a bit - rusty

Thanks!
Christian.

03-02-2012, 02:57 PM	#8
olorin Junior Member Posts: 2 Karma: 10 Join Date: Mar 2012 Device: Kindle	Hello there! Could you enable TCP support? I tried using mpd+ncmpc from optware with kindle terminal emulator. Unfortuanetly mpd was broken, but ncmpc looked pretty good. As I see, ncmpc requires TCP connection (and you can manage mpd) from other host via wifi Bug report: in config for launchpad there's Code: mpc ls \| xargs mpc add It doesn't work for music files with spaces in filenames. Code: mpc ls \| mpc add works well (mpc add expects \n separated filenames on STDIN if not specified in params). Also I think that SIGTERM should be used instead of SIGKILL(9) in launchpad configuration. Last edited by olorin; 03-02-2012 at 03:00 PM.

03-10-2012, 08:08 AM	#9
olorin Junior Member Posts: 2 Karma: 10 Join Date: Mar 2012 Device: Kindle	As for TCP thing this works well for now Code: socat tcp-l:6600,reuseaddr,fork unix:/var/run/.mpd_socket socat and ncmpc are from optware.

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02-15-2012, 11:02 AM	#2
giorgio130 Time Waster Posts: 422 Karma: 289160 Join Date: May 2011 Device: Kobo Glo and Aura HD	I didn't know about the last.fm thing! Do you think that making it work with the integrated 3g would be seen as 'abuse' of the service? It would be great though, unlimited songs while on the go with no storage use...

02-15-2012, 11:43 AM	#3
geekmaster Carpe diem, c'est la vie. Posts: 6,433 Karma: 10773668 Join Date: Nov 2011 Location: Multiverse 6627A Device: K1 to PW3	Consuming 3g traffic with streaming media is not a good idea when amazon is paying for that traffic. Just put your songs on the USB Drive and play them from there.

02-15-2012, 04:03 PM	#4
giorgio130 Time Waster Posts: 422 Karma: 289160 Join Date: May 2011 Device: Kobo Glo and Aura HD	Or better, I'll do it while I'm home and I have wifi available:-)

02-17-2012, 09:42 AM	#5
giorgio130 Time Waster Posts: 422 Karma: 289160 Join Date: May 2011 Device: Kobo Glo and Aura HD	Tested local file playing and it works! As a note, spaces in filenames cause errors. Could you have a look at that?

03-15-2012, 07:59 AM	#10
cts Junior Member Posts: 6 Karma: 10 Join Date: Mar 2012 Device: Kindle 3G	Hi xbqo, do you think you could be so kind as to hint me on your crosscompile toolchain, please? I'd love to jump into this but the infos I have found are confusing at beast Thanks! Christian.

03-16-2012, 12:50 PM	#13
NiLuJe BLAM! Posts: 13,477 Karma: 26012494 Join Date: Jun 2010 Location: Paris, France Device: Kindle 2i, 3g, 4, 5w, PW, PW2, PW5; Kobo H2O, Forma, Elipsa, Sage, C2E	In case it wasn't clear, my terminal log for the ct-ng build is in the kindle-x-compile-tc.tar.gz file attached in that post .

03-23-2012, 05:45 AM	#14
cts Junior Member Posts: 6 Karma: 10 Join Date: Mar 2012 Device: Kindle 3G	Hi NiLuJe, could you turn your installation (gentoo, I assume) into a VM? I am having trouble getting my compile-environment right and my Gentoo is a bit - rusty Thanks! Christian.

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