G729 annex B not being stored properly.

[sameer_evon]

Hello All,

I am using Gstreamer pipeline to record audio from rtp. Following is the
pipeline:

gst-launch udpsrc port=5002
caps="application/x-rtp,channels=(int)1,media=(string)audio,payload=(int)18,clock-rate=(int)8000,encoding-name=(string)G729"
! rtpg729depay ! filesink location=rawaudio.g729

This pipeline is storing proper data for G729 codec but for G729 annex B,
the audio is not playing clearly after conversion. Conversion is done using
ffmpeg.

Please let me know if I am doing anything wrong.

Following is a part of the logs from gst.

pu                                 shing buffer of size 20
0:01:53.334212652 28676      0x25e9940 LOG                   udpsrc
gstudpsrc.c:538:gst_udpsrc_create:<udpsrc0> doing select, timeout -                                
1
0:01:53.354079519 28676      0x25e9940 LOG                   udpsrc
gstudpsrc.c:625:gst_udpsrc_create:<udpsrc0> read packet of 32 bytes
0:01:53.354133114 28676      0x25e9940 LOG             rtpg729depay
gstrtpg729depay.c:191:gst_rtp_g729_depay_process:<rtpg729depay0> pa                                
yload len 20
0:01:53.354181229 28676      0x25e9940 LOG             rtpg729depay
gstrtpg729depay.c:209:gst_rtp_g729_depay_process:<rtpg729depay0> pu                                
shing buffer of size 20
0:01:53.354268835 28676      0x25e9940 LOG                   udpsrc
gstudpsrc.c:538:gst_udpsrc_create:<udpsrc0> doing select, timeout -                                
1
0:01:53.374607788 28676      0x25e9940 LOG                   udpsrc
gstudpsrc.c:625:gst_udpsrc_create:<udpsrc0> read packet of 24 bytes
0:01:53.374660548 28676      0x25e9940 LOG             rtpg729depay
gstrtpg729depay.c:191:gst_rtp_g729_depay_process:<rtpg729depay0> pa                                
yload len 12
0:01:53.374702863 28676      0x25e9940 LOG             rtpg729depay
gstrtpg729depay.c:194:gst_rtp_g729_depay_process:<rtpg729depay0> G7                                
29 payload contains CNG frame
0:01:53.374751133 28676      0x25e9940 LOG             rtpg729depay
gstrtpg729depay.c:209:gst_rtp_g729_depay_process:<rtpg729depay0> pu                                
shing buffer of size 12
0:01:53.374832849 28676      0x25e9940 LOG                   udpsrc
gstudpsrc.c:538:gst_udpsrc_create:<udpsrc0> doing select, timeout -                                
1
0:01:53.394247944 28676      0x25e9940 LOG                   udpsrc
gstudpsrc.c:625:gst_udpsrc_create:<udpsrc0> read packet of 32 bytes
0:01:53.394304285 28676      0x25e9940 LOG             rtpg729depay
gstrtpg729depay.c:191:gst_rtp_g729_depay_process:<rtpg729depay0> pa                                
yload len 20
0:01:53.394354320 28676      0x25e9940 LOG             rtpg729depay
gstrtpg729depay.c:209:gst_rtp_g729_depay_process:<rtpg729depay0> pu                                
shing buffer of size 20
0:01:53.394442040 28676      0x25e9940 LOG                   udpsrc
gstudpsrc.c:538:gst_udpsrc_create:<udpsrc0> doing select, timeout -                                
1
0:01:53.415260289 28676      0x25e9940 LOG                   udpsrc
gstudpsrc.c:625:gst_udpsrc_create:<udpsrc0> read packet of 32 bytes
0:01:53.415316715 28676      0x25e9940 LOG             rtpg729depay
gstrtpg729depay.c:191:gst_rtp_g729_depay_process:<rtpg729depay0> pa                                
yload len 20
0:01:53.415366785 28676      0x25e9940 LOG             rtpg729depay
gstrtpg729depay.c:209:gst_rtp_g729_depay_process:<rtpg729depay0> pu                                
shing buffer of size 20
0:01:53.415457460 28676      0x25e9940 LOG                   udpsrc
gstudpsrc.c:538:gst_udpsrc_create:<udpsrc0> doing select, timeout -                                
1
0:01:53.425390471 28676      0x25e9940 LOG                   udpsrc
gstudpsrc.c:625:gst_udpsrc_create:<udpsrc0> read packet of 14 bytes
0:01:53.425443921 28676      0x25e9940 LOG             rtpg729depay
gstrtpg729depay.c:191:gst_rtp_g729_depay_process:<rtpg729depay0> pa                                
yload len 2
0:01:53.425486616 28676      0x25e9940 LOG             rtpg729depay
gstrtpg729depay.c:194:gst_rtp_g729_depay_process:<rtpg729depay0> G7                                
29 payload contains CNG frame
0:01:53.425534671 28676      0x25e9940 LOG             rtpg729depay
gstrtpg729depay.c:209:gst_rtp_g729_depay_process:<rtpg729depay0> pu                                
shing buffer of size 2
0:01:53.425616552 28676      0x25e9940 LOG                   udpsrc
gstudpsrc.c:538:gst_udpsrc_create:<udpsrc0> doing select, timeout -                                
1
0:01:53.455497387 28676      0x25e9940 LOG                   udpsrc
gstudpsrc.c:625:gst_udpsrc_create:<udpsrc0> read packet of 32 bytes
0:01:53.455550182 28676      0x25e9940 LOG             rtpg729depay
gstrtpg729depay.c:191:gst_rtp_g729_depay_process:<rtpg729depay0> pa                                
yload len 20
0:01:53.455600417 28676      0x25e9940 LOG             rtpg729depay
gstrtpg729depay.c:209:gst_rtp_g729_depay_process:<rtpg729depay0> pu                                
shing buffer of size 20
0:01:53.455689327 28676      0x25e9940 LOG                   udpsrc
gstudpsrc.c:538:gst_udpsrc_create:<udpsrc0> doing select, timeout -                                
1




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