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2011-07-28
, 12:24
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Posts: 1,680 |
Thanked: 3,685 times |
Joined on Jan 2011
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#2
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Originally Posted by demolition
Have you overclocked/undervolted perchance?
Post moved from end of an old thread because its title isn't, in fact, quite in line with what I need help with...
Aim:
Play video file, whose details are below, with stock media player.
Actual result:
(a) Stock media player (h/w acc): 5 dots then unsupported format message.
(b) KMplayer + mplayer: plays but a and v lose sync.
Context:
I'm having a little trouble with video playback. Below is output from various commands, including hexdump ( from new busybox ). I can't find an armv7 build of avinaptic at the moment so I hope what I've got is enough.
This file does play, technically, in mplayer but video runs about 10% slower than audio so it doesn't take long for a lot of lag to develop. I would like to make use of the video h/w with the built in media player but I get that format unsupported message. I have installed as many of the codecs as I can see in the repositories (not the -dev or -dbg ones).
How can I check to make sure it's profile is baseline? And if it's set to main or high, how can it be reset to baseline?
mplayer can cope at approx 500kbps but I generally playback to a tv so would be better if higher quality were possible. I have found I can stream about 400kbps via the stock player but any higher then it's very skippy (and not in a good way!). These are bbc iplayer downloads/streams so I'd have thought the encoding would be the same for all resolutions and bitrates, for non-HD.
All help gratefully received...
File info
file useful command but not sure how to get a more verbose output...
mplayer identify lots of stuff ...Code:~/MyDocs/.videos/iplayerTV $ file movie.mp4 movie.mp4: ISO Media, MPEG v4 system
hexdump command only available in upgraded busyboxCode:~/MyDocs/.videos/iplayerTV $ mplayer -identify -frames 0 movie.mp4 MPlayer SVN-r30099-4.2.1 (C) 2000-2009 MPlayer Team Playing movie.mp4. libavformat file format detected. ID_VIDEO_ID=0 [lavf] Video stream found, -vid 0 ID_AUDIO_ID=1 [lavf] Audio stream found, -aid 1 ID_AID_1_LANG=und VIDEO: [H264] 640x360 24bpp 25.000 fps 698.3 kbps (85.2 kbyte/s) Clip info: major_brand: isom ID_CLIP_INFO_NAME0=major_brand ID_CLIP_INFO_VALUE0=isom minor_version: 512 ID_CLIP_INFO_NAME1=minor_version ID_CLIP_INFO_VALUE1=512 compatible_brands: isomiso2avc1mp41 ID_CLIP_INFO_NAME2=compatible_brands ID_CLIP_INFO_VALUE2=isomiso2avc1mp41 encoder: Lavf52.31.0 ID_CLIP_INFO_NAME3=encoder ID_CLIP_INFO_VALUE3=Lavf52.31.0 ID_CLIP_INFO_N=4 ID_FILENAME=movie.mp4 ID_DEMUXER=lavfpref ID_VIDEO_FORMAT=H264 ID_VIDEO_BITRATE=698344 ID_VIDEO_WIDTH=640 ID_VIDEO_HEIGHT=360 ID_VIDEO_FPS=25.000 ID_VIDEO_ASPECT=1.7778 ID_AUDIO_FORMAT=MP4A ID_AUDIO_BITRATE=94728 ID_AUDIO_RATE=24000 ID_AUDIO_NCH=2 ID_LENGTH=5338.98 ID_SEEKABLE=1 ID_CHAPTERS=0 ========================================================================== Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family Unsupported PixelFormat -1 Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264) ========================================================================== ID_VIDEO_CODEC=ffh264 ========================================================================== Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding) AUDIO: 24000 Hz, 2 ch, s16le, 94.7 kbit/12.33% (ratio: 11841->96000) ID_AUDIO_BITRATE=94728 ID_AUDIO_RATE=24000 ID_AUDIO_NCH=2 Selected audio codec: [faad] afm: faad (FAAD AAC (MPEG-2/MPEG-4 Audio)) ========================================================================== [AO OSS] audio_setup: Can't open audio device /dev/dsp: No such file or directory AO: [alsa] 24000Hz 2ch s16le (2 bytes per sample) ID_AUDIO_CODEC=faad Starting playback... Exiting... (End of file) ID_EXIT=EOF
Code:~/MyDocs/.videos/iplayerTV $ hexdump -C movie.mp4 | head 00000000 00 00 00 20 66 74 79 70 69 73 6f 6d 00 00 02 00 |... ftypisom....| 00000010 69 73 6f 6d 69 73 6f 32 61 76 63 31 6d 70 34 31 |isomiso2avc1mp41| 00000020 00 00 00 08 66 72 65 65 1f 8c 35 d0 6d 64 61 74 |....free..5.mdat| 00000030 00 00 00 27 06 00 11 80 04 38 0c 80 00 00 03 00 |...'.....8......| 00000040 00 04 38 0c 80 00 00 03 00 40 01 0c 00 00 03 00 |..8......@......| 00000050 00 40 90 80 08 00 00 03 00 08 80 00 00 01 6a 65 |.@............je| 00000060 88 80 40 0d bf bc 11 f8 86 ff c1 66 0b 8f bd 26 |..@........f...&| 00000070 13 68 2a fa 13 67 0b ef fd 3b 22 b2 09 d9 54 94 |.h*..g...;"...T.| 00000080 f1 ea b1 e6 0a 9f 82 d5 39 dc 37 ee 4a 9b a8 10 |........9.7.J...| 00000090 d8 64 ff d1 69 be fa 3f ac 5c 7c a2 a2 c4 08 ce |.d..i..?.\|.....|
__________________
N900: One of God's own prototypes. A high-powered mutant of some kind never even considered for mass production. Too weird to live, and too rare to die.
| The Following User Says Thank You to vi_ For This Useful Post: | ||
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2011-07-28
, 12:38
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Posts: 560 |
Thanked: 422 times |
Joined on Mar 2011
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#3
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O/S: Maemo5 PR1.3-v0.46
Kernel Settings:
- frequency-range: 250MHz - 850MHz
- profile: "ideal"
Is there something I should do with these to make playback in the stock player possible. I can see how kernel settings would impact on mplayer performance, however, so please suggest optimal for playback.
Kernel Settings:
- frequency-range: 250MHz - 850MHz
- profile: "ideal"
Is there something I should do with these to make playback in the stock player possible. I can see how kernel settings would impact on mplayer performance, however, so please suggest optimal for playback.
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2011-07-28
, 12:41
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Posts: 1,680 |
Thanked: 3,685 times |
Joined on Jan 2011
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#4
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Originally Posted by demolition
1. Install pastebinit.
O/S: Maemo5 PR1.3-v0.46
Kernel Settings:
- frequency-range: 250MHz - 850MHz
- profile: "ideal"
Is there something I should do with these to make playback in the stock player possible. I can see how kernel settings would impact on mplayer performance, however, so please suggest optimal for playback.
2. connect to internet.
3. enter:
Code:
kernel-config show | pastebinit
just for test sake, set the voltage/frequency back to default values and see how the stock player performs.
__________________
N900: One of God's own prototypes. A high-powered mutant of some kind never even considered for mass production. Too weird to live, and too rare to die.
Last edited by vi_; 2011-07-28 at 12:46.
| The Following User Says Thank You to vi_ For This Useful Post: | ||
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2011-07-28
, 13:09
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Posts: 560 |
Thanked: 422 times |
Joined on Mar 2011
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#5
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OK. I'll post back with how I get on. I hadn't thought frequency/voltage settings would effect the ability of media player to open.
Is there a way to check which profile the video is on the N900?
Is there a way to check which profile the video is on the N900?
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2011-07-28
, 14:02
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Posts: 560 |
Thanked: 422 times |
Joined on Mar 2011
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#6
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Pastebin...
http://pastebin.com/J5n53Pru
Ah. For some reason I thought it was 250 - 850, must have forgotten to set lower limit. Got to go out but I'll reset freq and profile as soon as I can.
Let me know if the above kernel settings might be contributing to the problem.
ps.Truly amazing service paste bin - thanks for alerting me to it!
http://pastebin.com/J5n53Pru
Ah. For some reason I thought it was 250 - 850, must have forgotten to set lower limit. Got to go out but I'll reset freq and profile as soon as I can.
Let me know if the above kernel settings might be contributing to the problem.
ps.Truly amazing service paste bin - thanks for alerting me to it!
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2011-07-28
, 14:24
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Posts: 1,048 |
Thanked: 1,127 times |
Joined on Jan 2010
@ Amsterdam
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#7
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@Demolition
Clock speed does seem to have influence on playback. I use QCPUfreq and overclock on a per session basis (max @900), usually when I want to watch a movie from the phone, displayed on the TV. I only utilize mplayer from the command line, though, as my experiences with both the default media player as well as KMPlayer were not very good, especially when I wants to use (external) subtitles.
That being said, however, I have ran in to some files that had trouble playing. What I did find is that ffmpeg does a pretty good job converting these "unplayable" files to something that actually does work. An example for converting a .flv to mpg can be found at the link below:
http://www.ubuntugeek.com/convert-fl...ng-ffmpeg.html
If you insist on using the default media player, converting on your n900 might be helpfull with that.
Clock speed does seem to have influence on playback. I use QCPUfreq and overclock on a per session basis (max @900), usually when I want to watch a movie from the phone, displayed on the TV. I only utilize mplayer from the command line, though, as my experiences with both the default media player as well as KMPlayer were not very good, especially when I wants to use (external) subtitles.
That being said, however, I have ran in to some files that had trouble playing. What I did find is that ffmpeg does a pretty good job converting these "unplayable" files to something that actually does work. An example for converting a .flv to mpg can be found at the link below:
http://www.ubuntugeek.com/convert-fl...ng-ffmpeg.html
If you insist on using the default media player, converting on your n900 might be helpfull with that.
__________________
download free linux books
online linux guides
download n900: service manual level 1-4
download free linux books
online linux guides
download n900: service manual level 1-4
| The Following User Says Thank You to anthonie For This Useful Post: | ||
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2011-07-28
, 15:31
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Posts: 560 |
Thanked: 422 times |
Joined on Mar 2011
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#8
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@fabio: thanks for removing your post.
---------
@ anthonie
OK. I'll try winding the CPU up a bit. You say 900 can play full 360p on mplayer? I find KMplayer generally better than cli mplayer but suspect I'm not giving it the correct settings.
I would prefer to use stock media player because it's h/w accelerated so cpu wouldn't need to run so fast and battery would last a bit longer.
@ vi_
Made a mistake on the initial pastebin - think I must have been running post-crash so settings didn't load.
http://pastebin.com/4LwMWzuF
Set it to default - rebooting now so brb
Last edited by demolition; 2011-07-28 at 21:30.
---------
@ anthonie
OK. I'll try winding the CPU up a bit. You say 900 can play full 360p on mplayer? I find KMplayer generally better than cli mplayer but suspect I'm not giving it the correct settings.
I would prefer to use stock media player because it's h/w accelerated so cpu wouldn't need to run so fast and battery would last a bit longer.
@ vi_
Made a mistake on the initial pastebin - think I must have been running post-crash so settings didn't load.
http://pastebin.com/4LwMWzuF
Set it to default - rebooting now so brb
Last edited by demolition; 2011-07-28 at 21:30.
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2011-07-28
, 15:51
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Posts: 26 |
Thanked: 25 times |
Joined on Apr 2011
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#9
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Hi I have a similar query. I like to watch japanese anime. These are usually in .mkv format with dual audio. I use Sib as a front end because it has a library structure. Now using Mplayer is very good because I can switch the audio streams using the # shortcut key however sometimes certain videos lag using mplayer. I don't think it is hardware accelerated.
The same .mkv video plays well on the stock media player..but there is no way to switch the audio stream. Anything I can do?
I never tried overclocking during playback. Usually I overclock only for multitasking. Do you think it would help with video playback?
Or is there any way to make mplayer hardware accelerated?
Or any way to switch audio streams using the stock media player.
The same .mkv video plays well on the stock media player..but there is no way to switch the audio stream. Anything I can do?
I never tried overclocking during playback. Usually I overclock only for multitasking. Do you think it would help with video playback?
Or is there any way to make mplayer hardware accelerated?
Or any way to switch audio streams using the stock media player.
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2011-07-28
, 16:49
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Posts: 1,048 |
Thanked: 1,127 times |
Joined on Jan 2010
@ Amsterdam
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#10
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OK. I'll try winding the CPU up a bit. You say 900 can play full 360p on mplayer? I find KMplayer generally better than cli mplayer but suspect I'm not giving it the correct settings.
I would prefer to use stock media player because it's h/w accelerated so cpu wouldn't need to run so fast and battery would last a bit longer.
However, if you type mplayer --help, you'll notice there are some options like framedropping and post processing, which may or may not help you.
Conclusion: Your mileage may vary.
__________________
download free linux books
online linux guides
download n900: service manual level 1-4
download free linux books
online linux guides
download n900: service manual level 1-4
| The Following User Says Thank You to anthonie For This Useful Post: | ||
Aim:
Play video file, whose details are below, with stock media player.
Actual result:
(a) Stock media player (h/w acc): 5 dots then unsupported format message.
(b) KMplayer + mplayer: plays but a and v lose sync.
Context:
I'm having a little trouble with video playback. Below is output from various commands, including hexdump ( from new busybox ). I can't find an armv7 build of avinaptic at the moment so I hope what I've got is enough.
This file does play, technically, in mplayer but video runs about 10% slower than audio so it doesn't take long for a lot of lag to develop. I would like to make use of the video h/w with the built in media player but I get that format unsupported message. I have installed as many of the codecs as I can see in the repositories (not the -dev or -dbg ones).
How can I check to make sure it's profile is baseline? And if it's set to main or high, how can it be reset to baseline?
mplayer can cope at approx 500kbps but I generally playback to a tv so would be better if higher quality were possible. I have found I can stream about 400kbps via the stock player but any higher then it's very skippy (and not in a good way!). These are bbc iplayer downloads/streams so I'd have thought the encoding would be the same for all resolutions and bitrates, for non-HD.
All help gratefully received...
File info
file useful command but not sure how to get a more verbose output...