[gst-devel] 0.7 CVS/alsasink trouble

[Benjamin Otte]

This is an ALSA bug, Iain reported a similar problem. Happens when you use
the plughw interface that does format/rate conversion for you.

It would btw be very helpful if you would compile alsalib with debugging
symbols. And I'd like to know what soundcard you are using.

The format is supposed to be NULL until caps are set, btw, so this
behaviour is absolutely correct.

As a workaround you could try using alsasink device=hw:0,0 where the path
in alsalib that leads to this error isn't taken.

marking bug as NOTGSTREAMER :)

Benjamin



On 11 Apr 2003, Colin Walters wrote:

> Hey all, I'm also having trouble with the alsasink from 0.7 CVS.  Any ideas?
>
>
> Starting program: /src/cvs/cvs.gnome.org/net-rhythmbox/shell/net-rhythmbox
> [New Thread 16384 (LWP 10671)]
> INFO (10671: 0) Initializing GStreamer Core Library version 0.7.0.1
> INFO (10671: 0) CPU features: (00000000) MMX SSE
> INFO (10671: 0) registry: loaded user_registry in 0.000131 seconds
>           (/home/walters/.gstreamer/registry.xml)
> INFO (10671: 0) registry: loaded global_registry in 0.313333 seconds
>           (/build/gstreamer-0.7/var/cache/gstreamer-0.7/registry.xml)
> [New Thread 32769 (LWP 10672)]
> [New Thread 16386 (LWP 10673)]
> [New Thread 32771 (LWP 10674)]
> netRhythmbox-Message: Failed to register the shell: (null)
> This probably means that you installed RB in a
> different prefix than bonobo-activation; this
> warning is harmless, but IPC will not work.
>
> [New Thread 49156 (LWP 10675)]
> [New Thread 65541 (LWP 10676)]
> Failed to activate the shell:
> (null)
> [New Thread 81926 (LWP 10677)]
> net-rhythmbox: pcm_plug.c:882: snd_pcm_plug_hw_params: Assertion `err >= 0' failed.
>
> Program received signal SIGABRT, Aborted.
> [Switching to Thread 81926 (LWP 10677)]
> 0x4103aa51 in kill () from /lib/libc.so.6
> (gdb) bt
> #0  0x4103aa51 in kill () from /lib/libc.so.6
> #1  0x4126724b in pthread_kill () from /lib/libpthread.so.0
> #2  0x41267521 in raise () from /lib/libpthread.so.0
> #3  0x4103b986 in abort () from /lib/libc.so.6
> #4  0x41034ae9 in __assert_fail () from /lib/libc.so.6
> #5  0x401ba9d8 in _snd_pcm_rate_open () from /usr/lib/libasound.so.2
> #6  0x401ad6eb in snd_pcm_hw_refine () from /usr/lib/libasound.so.2
> #7  0x401a1c41 in snd_pcm_hw_params () from /usr/lib/libasound.so.2
> #8  0x4015ee1b in gst_alsa_set_hw_params (this=0x81cb268) at gstalsa.c:1487
> #9  0x4015f32f in gst_alsa_start_audio (this=0x81cb268) at gstalsa.c:1535
> #10 0x4015d864 in gst_alsa_change_state (element=0x81cb268) at gstalsa.c:949
> #11 0x4003d216 in gst_element_set_state (element=0x81cb268, state=GST_STATE_PAUSED) at gstelement.c:2133
> #12 0x40032ebb in gst_bin_change_state (element=0x81c8650) at gstbin.c:702
> #13 0x4003d216 in gst_element_set_state (element=0x81c8650, state=GST_STATE_PAUSED) at gstelement.c:2133
> #14 0x40032ebb in gst_bin_change_state (element=0x81c7e58) at gstbin.c:702
> #15 0x400534fc in gst_thread_update_state (thread=0x81c7e58) at gstthread.c:360
> #16 0x40055a1d in gst_thread_main_loop (arg=0x81c7e58) at gstthread.c:679
> #17 0x413cbcc0 in g_static_private_free () from /usr/lib/libglib-2.0.so.0
> #18 0x41264d53 in pthread_start_thread () from /lib/libpthread.so.0
> #19 0x41264d99 in pthread_start_thread_event () from /lib/libpthread.so.0
> (gdb) up 8
> #8  0x4015ee1b in gst_alsa_set_hw_params (this=0x81cb268) at gstalsa.c:1487
> warning: Source file is more recent than executable.
>
> (gdb) p this
> $3 = (GstAlsa *) 0x81cb268
> (gdb) p *$
> $4 = {parent = {object = {object = {g_type_instance = {g_class = 0x81ca728}, ref_count = 2, qdata = 0x0},
>       name = 0x81cb820 "alsasink0", lock = 0x81cb718, parent = 0x81c8650, flags = 1048896}, current_state = 2 '\002',
>     pending_state = 4 '\004', loopfunc = 0x4015dcf0 <gst_alsa_sink_loop>, sched = 0x81c6218, sched_private = 0x81cba20,
>     clock = 0x0, base_time = 0, numpads = 1, numsrcpads = 0, numsinkpads = 1, pads = 0x8139108,
>     state_mutex = 0x81cb738, state_cond = 0x81cb758, pre_run_func = 0, post_run_func = 0, prop_value_queue = 0x0,
>     property_mutex = 0x0, dummy = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, pads = {{pad = 0x81c65dc, data = 0x0,
>       size = 0, buf = 0x0}, {pad = 0x0, data = 0x0, size = 0, buf = 0x0} <repeats 63 times>},
>   device = 0x81cb7a8 "default", stream = SND_PCM_STREAM_PLAYBACK, handle = 0x853f288, pcm_caps = 0, out = 0x8293f10,
>   format = 0x0, mmap = 1, transmit = 0, period_size = 8192, period_count = 2, autorecover = 1}
> (gdb) p $->format
> $5 = (GstAlsaFormat *) 0x0
> (gdb)
>
>
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