[alsa-devel] aplay: xrun:1104: read/write error ???
Hi All: im using aplay from ALSA-1.0.15 to play music through bluetooth a2dp. im using montavista 2.6.18 on ARM9 platform. I got an "aplay: xrun:1104: read/write error, state = RUNNING" error after the music has been played for one second or two. Could someone tell me how this happened?
Here's the command that i use :
aplay -v -D bluetooth /1.wav
And the message log is as follows:
/$ aplay -v -D bluetooth /1.wav
audio[842]: Accepted new client connection on unix socket (fd=8) audio[842]: Package PKT_TYPE_CFG_REQ:0 audio[842]: avdtp_ref(0x3c990): ref=2 audio[842]: a2dp_source_request_stream: selected SEP 0x3c218 audio[842]: avdtp_ref(0x3c990): ref=3 hcid[828]: link_key_request (sba=00:80:E1:00:AB:BA, dba=00:0D:3C:EB:53:F0) audio[842]: AVDTP: connected signaling channel to 00:0D:3C:EB:53:F0 audio[842]: session_cb audio[842]: DISCOVER request succeeded audio[842]: seid 1 type 1 media 0 in use 0 audio[842]: seid 2 type 1 media 0 in use 0 audio[842]: session_cb audio[842]: GET_CAPABILITIES request succeeded audio[842]: seid 1 type 1 media 0 hcid[828]: link_key_request (sba=00:80:E1:00:AB:BA, dba=00:0D:3C:EB:53:F0) hcid[828]: link_key_request (sba=00:80:E1:00:AB:BA, dba=00:0D:3C:EB:53:F0) audio[842]: session_cb audio[842]: GET_CAPABILITIES request succeeded audio[842]: seid 2 type 1 media 0 audio[842]: Discovery complete audio[842]: avdtp_set_configuration(0x3c990): int_seid=1, acp_seid=1 audio[842]: session_cb audio[842]: SET_CONFIGURATION request succeeded audio[842]: SBC Source: Set_Configuration_Cfm audio[842]: avdtp_ref(0x3c990): ref=4 audio[842]: stream state changed: IDLE -> CONFIGURED audio[842]: session_cb audio[842]: OPEN request succeeded audio[842]: stream state changed: CONFIGURED -> OPEN audio[842]: AVDTP: connected transport channel to 00:0D:3C:EB:53:F0 audio[842]: SBC Source: Open_Cfm audio[842]: session_cb audio[842]: START request succeeded audio[842]: SBC Source: Start_Cfm audio[842]: SBC Source SEP 0x3c218 locked audio[842]: fd=10, fd_opt=1, pkt_len=672, sample_size=2, rate=44100 audio[842]: 34 bytes sent audio[842]: 1 bytes sent audio[842]: avdtp_unref(0x3c990): ref=3 audio[842]: stream state changed: OPEN -> STREAMING Playing WAVE '/1.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo Bluetooth Audio Device Its setup is: stream : PLAYBACK access : RW_INTERLEAVED format : S16_LE subformat : STD channels : 2 rate : 44100 exact rate : 44100 (44100/1) msbits : 16 buffer_size : 6400 period_size : 128 period_time : 2902 tick_time : 0 tstamp_mode : NONE period_step : 1 sleep_min : 0 avail_min : 128 xfer_align : 128 start_threshold : 6400 stop_threshold : 6400 silence_threshold: 0 silence_size : 0 boundary : 1677721600 hcid[828]: link_key_request (sba=00:80:E1:00:AB:BA, dba=00:0D:3C:EB:53:F0) Status(R/W): state : RUNNING trigger_time: 24.586883000 tstamp : 0.000000 delay : 0 avail : 6912 avail_max : 6912 aplay: xrun:1104: read/write error, state = RUNNING ---------------->>>>> this is where this error happens audio[842]: Unix client disconnected (fd=8) audio[842]: SBC Source SEP 0x3c218 unlocked audio[842]: avdtp_unref(0x3c990): ref=2
thanks
semiyd
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At Tue, 13 Nov 2007 05:43:37 +0000, wrote:
Hi All: im using aplay from ALSA-1.0.15 to play music through bluetooth a2dp. im using montavista 2.6.18 on ARM9 platform. I got an "aplay: xrun:1104: read/write error, state = RUNNING" error after the music has been played for one second or two. Could someone tell me how this happened?
It implies that the write returns -EPIPE that indicates XRUN, but the state is still set as RUNNING. Something is inconsistent in the plugin, I guess.
Takashi
Here's the command that i use :
aplay -v -D bluetooth /1.wav
And the message log is as follows:
/$ aplay -v -D bluetooth /1.wav
audio[842]: Accepted new client connection on unix socket (fd=8) audio[842]: Package PKT_TYPE_CFG_REQ:0 audio[842]: avdtp_ref(0x3c990): ref=2 audio[842]: a2dp_source_request_stream: selected SEP 0x3c218 audio[842]: avdtp_ref(0x3c990): ref=3 hcid[828]: link_key_request (sba=00:80:E1:00:AB:BA, dba=00:0D:3C:EB:53:F0) audio[842]: AVDTP: connected signaling channel to 00:0D:3C:EB:53:F0 audio[842]: session_cb audio[842]: DISCOVER request succeeded audio[842]: seid 1 type 1 media 0 in use 0 audio[842]: seid 2 type 1 media 0 in use 0 audio[842]: session_cb audio[842]: GET_CAPABILITIES request succeeded audio[842]: seid 1 type 1 media 0 hcid[828]: link_key_request (sba=00:80:E1:00:AB:BA, dba=00:0D:3C:EB:53:F0) hcid[828]: link_key_request (sba=00:80:E1:00:AB:BA, dba=00:0D:3C:EB:53:F0) audio[842]: session_cb audio[842]: GET_CAPABILITIES request succeeded audio[842]: seid 2 type 1 media 0 audio[842]: Discovery complete audio[842]: avdtp_set_configuration(0x3c990): int_seid=1, acp_seid=1 audio[842]: session_cb audio[842]: SET_CONFIGURATION request succeeded audio[842]: SBC Source: Set_Configuration_Cfm audio[842]: avdtp_ref(0x3c990): ref=4 audio[842]: stream state changed: IDLE -> CONFIGURED audio[842]: session_cb audio[842]: OPEN request succeeded audio[842]: stream state changed: CONFIGURED -> OPEN audio[842]: AVDTP: connected transport channel to 00:0D:3C:EB:53:F0 audio[842]: SBC Source: Open_Cfm audio[842]: session_cb audio[842]: START request succeeded audio[842]: SBC Source: Start_Cfm audio[842]: SBC Source SEP 0x3c218 locked audio[842]: fd=10, fd_opt=1, pkt_len=672, sample_size=2, rate=44100 audio[842]: 34 bytes sent audio[842]: 1 bytes sent audio[842]: avdtp_unref(0x3c990): ref=3 audio[842]: stream state changed: OPEN -> STREAMING Playing WAVE '/1.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo Bluetooth Audio Device Its setup is: stream : PLAYBACK access : RW_INTERLEAVED format : S16_LE subformat : STD channels : 2 rate : 44100 exact rate : 44100 (44100/1) msbits : 16 buffer_size : 6400 period_size : 128 period_time : 2902 tick_time : 0 tstamp_mode : NONE period_step : 1 sleep_min : 0 avail_min : 128 xfer_align : 128 start_threshold : 6400 stop_threshold : 6400 silence_threshold: 0 silence_size : 0 boundary : 1677721600 hcid[828]: link_key_request (sba=00:80:E1:00:AB:BA, dba=00:0D:3C:EB:53:F0) Status(R/W): state : RUNNING trigger_time: 24.586883000 tstamp : 0.000000 delay : 0 avail : 6912 avail_max : 6912 aplay: xrun:1104: read/write error, state = RUNNING ---------------->>>>> this is where this error happens audio[842]: Unix client disconnected (fd=8) audio[842]: SBC Source SEP 0x3c218 unlocked audio[842]: avdtp_unref(0x3c990): ref=2
thanks
semiyd
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Takashi Iwai