It looks like you're trying to play to a capture device.ý The naming convention is /dev/snd/pcmP<port #>D<device#> for playback devices.

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From: kandregula vijaya santhi
Sent: Monday, July 22, 2013 1:06 AM
To: development-multimedia
Reply To: development-multimedia@community.qnx.com
Subject: Re: No Audio heard when stated Play using mmecli

Thank You Gilles

I tried but still aim unable to hear audio
Please find the below log

# mmecli newtrksession l "select fid from library where ftype=1"
(rc=0,errno=0) new trksessionid=1.  Execution Time=0.017
# mmecli settrksession 1
(rc=0,errno=0) Set trksessionid=1.  Execution Time=0.052
#
#
# mmecli play
(rc=0,errno=0) Playing from tracksession fid/bid = 0.  Execution Time=0.107
#an 01 00:00:36    3    26   998 QDB: created missing database mme
Jan 01 00:00:40    5    27   200 MDP:mdp_mgr_init(270): Starting metadata plug-i                                             n initialization.
Jan 01 00:00:40    5    27     0 MME:dbs_init(663): Starting database synchroniz                                             er initialization.
Jan 01 00:00:51    3    27   200 MDP:new_file_group(790): No metadata plug-in fo                                             und for group 00004000 for file "/media/drive/AlbumArtSmall.jpg".
Jan 01 00:00:51    3    27   200 MDP:mdp_mgr_metadata_get_int(1088): No MDP foun                                             d for group 00004000 for file "/media/drive/AlbumArtSmall.jpg".
Jan 01 00:00:51    3    27   200 MDP:new_file_group(790): No metadata plug-in fo                                             und for group 00004000 for file "/media/drive/Folder.jpg".
Jan 01 00:00:51    3    27   200 MDP:mdp_mgr_metadata_get_int(1088): No MDP foun                                             d for group 00004000 for file "/media/drive/Folder.jpg".
Jan 01 00:01:27    5    20     1 io-media-generic/mmf: writer hint snd:* found
Jan 01 00:01:27    5    20     1 io-media-generic/trackplayer: Skipping video su                                             bgraph because there is no video device specified.
Jan 01 00:01:27    5    20     1 io-media-generic/aoi: audio_writer setting AOR_                                             TYPE_POINTER resources PcmQueueFilter to 155f40
Jan 01 00:01:27    5    20     1 io-media-generic/mmf: Configuring the queue for                                              -1 bytes, lw = 0, hw = 0, thr = -1.
Jan 01 00:01:27    5    20     1 io-media-generic/trackplayer: Skipping video su                                             bgraph because there is no device specified.
Jan 01 00:01:27    5    20     1 io-media-generic/mmf: Configuring the queue for                                              2116800 bytes, lw = 423360, hw = 1693440, thr = -1.
Jan 01 00:01:27    5    20     1 io-media-generic/aoi: audio_writer using output                                              device: '/dev/snd/pcmC2D0p'
Jan 01 00:01:27    5    20     1 io-media-generic/aoi: audio_writer asking for S                                             igned 16-bit Little Endian, 1..2x17640B frags, 44100Hz, bps=4, 2ch
Jan 01 00:01:27    5    20     1 io-media-generic/aoi: audio_writer settings:  S                                             igned 16-bit Little Endian, 3x17640B frags, 44100Hz, bps=4, 2ch, Q time 300ms
Jan 01 00:01:27    5    20     1 io-media-generic/aoi: audio_writer PGA_Streamer                                             Create() push mode = 0 adjusting chunk_size from 17640bytes to 17640bytes
Jan 01 00:01:27    5    20     1 io-media-generic/aoi: audio_writer using mixer                                              device '/dev/snd/mixerC2D0'
Jan 01 00:01:27    5    20     1 io-media-generic/trackplayer: Skipping subgraph                                              1 because there is no device specified.
Jan 01 00:01:27    3    20     1 io-media-generic/trackplayer: Couldn't subscrib                                             e to the MM_EV_USER event.
Jan 01 00:01:27    5    20     1 io-media-generic/aoi: MediaClock Resume()
#
#mmecli stop



why iam getting the below error
"Skipping subgraph  1 because there is no device specified"

Also when i do "mmecli stop" there is no response.I need to power off and on the device.



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