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Hello all, I am new to try app_mp4 at Asterisk & Ubuntu 8.04.<BR>
<BR>
I try to use mp4play to play a file, welcome.3gp at Asterisk v.14.21.1 by xlite. The video display well on xlite but there is no audio. <BR>
<BR>
I found bellow message ar Asterisk console<BR>
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[Mar 3 08:53:02] WARNING[5920]: channel.c:2781 set_format: Unable to find a codec translation path from unknown to amr<BR>[Mar 3 08:53:02] WARNING[5920]: app_mp4.c:564 mp4_play: mp4_play: Unable to set write format to AMR-NB!<BR>[Mar 3 08:53:02] WARNING[5920]: chan_sip.c:3707 sip_write: Asked to transmit frame type 8192, while native formats is 0x4 (ulaw)(4) read/write = 0x4 (ulaw)(4)/0x4 (ulaw)(4)<BR>[Mar 3 08:53:02] WARNING[5920]: chan_sip.c:3707 sip_write: Asked to transmit frame type 8192, while native formats is 0x4 (ulaw)(4) read/write = 0x4 (ulaw)(4)/0x4 (ulaw)(4)<BR>[Mar 3 08:53:02] WARNING[5920]: chan_sip.c:3707 sip_write: Asked to transmit frame type 8192, while native formats is 0x4 (ulaw)(4) read/write = 0x4 (ulaw)(4)/0x4 (ulaw)(4)<BR><BR>
The result of mp4info of welcome.3gp is bellow<BR>
<BR>
# mp4info welcome.3gp<BR>mp4info version 1.5.0.1<BR>welcome.3gp:<BR>Track Type Info<BR>201 video H.263, 3.640 secs, 27 kbps, 176x144 @ 10.164835 fps<BR>65335 hint Payload H263-2000 for track 201<BR>101 audio AMR, 3.640 secs, 13 kbps, 8000 Hz<BR>65435 hint Payload AMR for track 101<BR>1 od Object Descriptors<BR>2 scene BIFS<BR>
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The result of codecs in Asterisk is bellow. It seems Asterisk have enabled amrnb<BR>
<BR>
core show codecs<BR>Disclaimer: this command is for informational purposes only.<BR> It does not indicate anything about your configuration.<BR> INT BINARY HEX TYPE NAME DESC<BR>--------------------------------------------------------------------------------<BR> 1 (1 << 0) (0x1) audio g723 (G.723.1)<BR> 2 (1 << 1) (0x2) audio gsm (GSM)<BR> 4 (1 << 2) (0x4) audio ulaw (G.711 u-law)<BR> 8 (1 << 3) (0x8) audio alaw (G.711 A-law)<BR> 16 (1 << 4) (0x10) audio g726aal2 (G.726 AAL2)<BR> 32 (1 << 5) (0x20) audio adpcm (ADPCM)<BR> 64 (1 << 6) (0x40) audio slin (16 bit Signed Linear PCM)<BR> 128 (1 << 7) (0x80) audio lpc10 (LPC10)<BR> 256 (1 << 8) (0x100) audio g729 (G.729A)<BR> 512 (1 << 9) (0x200) audio speex (SpeeX)<BR> 1024 (1 << 10) (0x400) audio ilbc (iLBC)<BR> 2048 (1 << 11) (0x800) audio g726 (G.726 RFC3551)<BR> 4096 (1 << 12) (0x1000) audio g722 (G722)<BR> 8192 (1 << 13) (0x2000) audio amr (AMR NB)<BR> 65536 (1 << 16) (0x10000) image jpeg (JPEG image)<BR> 131072 (1 << 17) (0x20000) image png (PNG image)<BR> 262144 (1 << 18) (0x40000) video h261 (H.261 Video)<BR> 524288 (1 << 19) (0x80000) video h263 (H.263 Video)<BR> 1048576 (1 << 20) (0x100000) video h263p (H.263+ Video)<BR> 2097152 (1 << 21) (0x200000) video h264 (H.264 Video)<BR><BR>Any idea? Million thanks for help!<BR>
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Best Regard<BR>
Tony Wang<BR>
<BR>                                            <br /><hr />除了電子信箱,還有許多有用的功能。快來使用免費的 Windows Live Hotmail。 <a href='https://signup.live.com/signup.aspx?id=60969' target='_new'>馬上註冊</a></body>
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