• State
  • Locked Locked
  • Replies 4 replies
  • Subscribers 101 subscribers
  • Views 1263 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

mplayer does not produce any sound when playing mp3

VIJAY KULKARNI24
Intellectual 575 points

Hi,

I have cross compiled the mplayer for AM335x Sitara EVM Board and when playing any song, i hear no sound. Below is my log when I play a song.

root@am335x-evm:/usr# mplayer hp.mp3 
MPlayer 1.0rc2-4.5.3 (C) 2000-2007 MPlayer Team
CPU: ARM
Creating config file: /home/root/.mplayer/config

Playing hp.mp3.
Audio file file format detected.
Clip info:
 Title: Happy Birthday @ IndiaMp3.Com
 Artist: Sachin-Jigar
 Album: ABCD 2 (2015)
 Year: 2015
 Comment: @ IndiaMp3.Com
 Track: 4
 Genre: Soundtrack
==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
AUDIO: 44100 Hz, 2 ch, s16le, 128.0 kbit/9.07% (ratio: 16000->176400)
Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
[AO OSS] audio_setup: Can't open audio device /dev/dsp: No such file or directory
Opening /dev/dvb/adapter0/audio0
DVB AUDIO DEVICE: No such file or directory
AO: [null] 44100Hz 2ch s16le (2 bytes per sample)
Video: no video
Starting playback...
A:  24.8 (24.8) of 244.0 (04:04.0) 10.7%

The compilation steps are here :

# ./configure --prefix=/home/cyient/rootfs --enable-cross-compile --cc=arm-arago-linux-gnueabi-gcc --host-cc=gcc --as=arm-arago-linux-gnueabi-as --ar=arm-arago-linux-gnueabi-ar --ranlib=arm-arago-linux-gnueabi-ranlib --target=arm-linux --disable-ivtv

# make 

# make install

I have a doubt on prefix= /home/cyient/rootfs. What needs to be used here ??

mplayer version used : MPlayer-1.0rc2

compiler : PATH=/home/cyient/arago-2011.09-armv7a-linux-gnueabi-sdk/arago-2011.09/armv7a/bin:

Any help is appreciated. 

  • 0
    TI__Guru** 116100 points
    Hi,
    Did you enable Audio support in linux ?
    Able to play any *.wav files with "aplay" tool ?

    Able to find the audio sound card ?


    Can't open audio device /dev/dsp: No such file or directory

    It seems you have to enable audio support via make menuconfig.
  • 0 in reply to Titusrathinaraj Stalin
    Intellectual 575 points
    Hi,

    Yes we have enabled the audio support. We are able to play wave file using aplay command. I am using the SDK 5 version prebuilt binaries on Sitara EVM board.

    See here :

    root@am335x-evm:/usr# aplay /usr/share/sounds/alsa/Front_Center.wav
    Playing WAVE '/usr/share/sounds/alsa/Front_Center.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono
    root@am335x-evm:/usr# aplay /usr/share/sounds/alsa/Front_Center.wav
    Playing WAVE '/usr/share/sounds/alsa/Front_Center.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono

    root@am335x-evm:/usr# aplay -l
    **** List of PLAYBACK Hardware Devices ****
    card 0: EVM [AM335X EVM], device 0: AIC3X tlv320aic3x-hifi-0 []
    Subdevices: 1/1
    Subdevice #0: subdevice #0
    root@am335x-evm:/usr#
  • 0 in reply to VIJAY KULKARNI24
    Intellectual 575 points
    # ./configure --prefix=/home/cyient/rootfs --enable-cross-compile --cc=arm-arago-linux-gnueabi-gcc --host-cc=gcc --as=arm-arago-linux-gnueabi-as --ar=arm-arago-linux-gnueabi-ar --ranlib=arm-arago-linux-gnueabi-ranlib --target=arm-linux --disable-ivtv --enable-alsa

    Even tried enabling alsa, but still I dont here any sound.
    One more thing :
    when I give mplayer -ao help, I dont get alsa here.

    root@am335x-evm:/usr# mplayer -ao help
    MPlayer 1.0rc2-4.5.3 (C) 2000-2007 MPlayer Team
    CPU: ARM
    Available audio output drivers:
    oss OSS/ioctl audio output
    mpegpes DVB audio output
    v4l2 V4L2 MPEG Audio Decoder output
    null Null audio output
    pcm RAW PCM/WAVE file writer audio output

    I encountered error while sudo make install
    make -C osdep
    make[1]: Entering directory `/home/cyient/MPlayer-1.0rc2/osdep'
    make[1]: Nothing to be done for `libs'.
    make[1]: Leaving directory `/home/cyient/MPlayer-1.0rc2/osdep'
    install -m 755 -s mplayer /media/cyient/rootfs//media/cyient/rootfs/bin
    strip: Unable to recognise the format of the input file `/media/cyient/rootfs//media/cyient/rootfs/bin/mplayer'
    install: strip process terminated abnormally
    make: *** [install-mplayer] Error 1

    Please help.
    Thank you

    Vijay
  • 0 in reply to VIJAY KULKARNI24
    Intellectual 575 points
    We built our own mp3 decoder and solved this issue ourself.
    Thanks for the help.