[gst-devel] Problem in G726 pipeline

Puneeth puneeth.mv at globaledgesoft.com
Tue Feb 8 14:52:13 CET 2011


Hi All,
    
   I m facing some problem with g726 pipeline when i m trying to encode PCM
audio data to G726 format and decode and playback. I m not able to hear
anything with the below pipeline, i m just able to listen some noise with
this pipeline, what changes i have to do to listen the captured PCM data.

sudo gst-launch alsasrc !
'audio/x-raw-int,channels=1,rate=8000,width=16,depth=16,signed=true,endianness=1234'
! ffenc_g726 bitrate=16000 ! ffdec_g726 ! alsasink --gst-debug=2

Following are the warnings i m getting when i run this pipeline....I would
really appreciate if anyone could find me the solution..Thank you in
advance.

Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
0:00:00.095488564  4790  0x804e070 WARN                     bin
gstbin.c:2330:gst_bin_do_latency_func:<pipeline0> failed to query latency
New clock: GstAudioSrcClock
0:00:00.141162049  4790  0x81f6d60 WARN                  ffmpeg
gstffmpegcodecmap.c:138:gst_ff_channel_layout_to_gst: Unknown channels in
channel layout - assuming NONE layout
0:00:00.151231337  4790  0x81f6d60 WARN                  ffmpeg
gstffmpegcodecmap.c:138:gst_ff_channel_layout_to_gst: Unknown channels in
channel layout - assuming NONE layout
0:00:00.151599848  4790  0x81f6d60 WARN                    alsa
gstalsa.c:124:gst_alsa_detect_formats:<alsasink0> skipping non-int format
0:00:02.096117547  4790  0x81f6d60 WARN            baseaudiosrc
gstbaseaudiosrc.c:817:gst_base_audio_src_create:<alsasrc0> create DISCONT of
15300 samples at sample 15470
0:00:02.096295799  4790  0x81f6d60 WARN            baseaudiosrc
gstbaseaudiosrc.c:822:gst_base_audio_src_create:<alsasrc0> warning: Can't
record audio fast enough
0:00:02.096340610  4790  0x81f6d60 WARN            baseaudiosrc
gstbaseaudiosrc.c:822:gst_base_audio_src_create:<alsasrc0> warning: Dropped
15300 samples. This is most likely because downstream can't keep up and is
consuming samples too slowly.
WARNING: from element /GstPipeline:pipeline0/GstAlsaSrc:alsasrc0: Can't
record audio fast enough
Additional debug info:
gstbaseaudiosrc.c(822): gst_base_audio_src_create ():
/GstPipeline:pipeline0/GstAlsaSrc:alsasrc0:
Dropped 15300 samples. This is most likely because downstream can't keep up
and is consuming samples too slowly.

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