[MPlayer-dev-eng] Problems playing non-MPEG streams using RTSP

[Ross Finlayson]

I'm having problems getting mplayer (with my new LIVE.COM additions) to 
stream non-MPEG  RTSP streams.  (MPEG audio and/or video streams work just 
fine.)  I wonder if someone who's familiar with the use of non-MPEG codecs 
in mplayer can help me to get this working.

(Note that I have installed the FFmpeg libavcodec files, and the Win32 codecs.)

My first example:
         mplayer -V rtsp://darwin.horizonlive.com/finlayson/sample-gsm-8000.mov

This should play a GSM audio stream.  Here's the output I get.  (I have 
inserted my own comments, in lines beginning with #####ROSS:

MPlayer CVS-020805-21:00-2.95.3 (C) 2000-2002 Arpad Gereoffy (see DOCS!)


CPU: Intel Celeron A Mendocino/Pentium II Dixon (Family: 6, Stepping: 10) 
CPUflags:  MMX: 1 MMX2: 0 3DNow: 0 3DNow2: 0 SSE: 0 SSE2: 0 Compiled for 
x86 CPU with extensions: MMX


Reading /home/rsf/.mplayer/codecs.conf: 38 audio & 104 video codecs 
CommandLine:get_path('font/font.desc') -> 
'/home/rsf/.mplayer/font/font.desc'  '-V' 
'rtsp://darwin.horizonlive.com/finlayson/sample-gsm-8000.mov' Using MMX 
Optimized OnScreenDisplay
font: can't open file: /home/rsf/.mplayer/font/font.desc font: can't open 
file: /usr/local/share/mplayer/font/font.desc Linux RTC init error: No such 
device
Using usleep() timing
get_path('input.conf') -> '/home/rsf/.mplayer/input.conf' Can't open input 
config file /home/rsf/.mplayer/input.conf : No such file or directory Can't 
open input config file /usr/local/share/mplayer/input.conf : No such file 
or directory Falling back on default (hardcoded) input config


Playing rtsp://darwin.horizonlive.com/finlayson/sample-gsm-8000.mov 
Connected to server: darwin.horizonlive.com Stream not seekable!
#####ROSS: The following information describes the details of the RTSP
#####ROSS: protocol.  You can ignore this stuff.
Sending request: DESCRIBE 
rtsp://darwin.horizonlive.com/finlayson/sample-gsm-8000.mov RTSP/1.0 CSeq: 1
Accept: application/sdp



Received DESCRIBE response: RTSP/1.0 200 OK Server: DSS/3.0.1 [v338]-Linux
Cseq: 1
Last-Modified: Mon, 08 Oct 2001 14:57:51 GMT Cache-Control: must-revalidate
Content-length: 233
Date: Tue, 06 Aug 2002 17:34:11 GMT
Expires: Tue, 06 Aug 2002 17:34:11 GMT
Content-Type: application/sdp
x-Accept-Retransmit: our-retransmit
Content-Base: rtsp://darwin.horizonlive.com/finlayson/sample-gsm-8000.mov/


v=0
s=/finlayson/sample-gsm-8000.mov
u=http:///
e=admin@
c=IN IP4 208.185.32.22
a=control:*
a=range:npt=0- 211.28667
m=OTHER 0 RTP/AVP 96
a=rtpmap:96 X-QT/10000
a=control:trackID=3
m=audio 0 RTP/AVP 3
a=control:trackID=4

#####ROSS: Note: The "3" in the "m=" line above is what tells the code that
#####ROSS: the RTP payload format being used is for GSM audio

Initiated "audio/GSM" RTP subsession
Sending request: SETUP 
rtsp://darwin.horizonlive.com/finlayson/sample-gsm-8000.mov/trackID=4 
RTSP/1.0 CSeq: 2
Transport: RTP/AVP;unicast;client_port=1028-1029



Received SETUP response: RTSP/1.0 200 OK Server: DSS/3.0.1 [v338]-Linux
Cseq: 2
Last-Modified: Mon, 08 Oct 2001 14:57:51 GMT Cache-Control: must-revalidate
Session: 7201557908756280560
Date: Tue, 06 Aug 2002 17:34:11 GMT
Expires: Tue, 06 Aug 2002 17:34:11 GMT
Transport: 
RTP/AVP;unicast;client_port=1028-1029;source=208.185.32.22;server_port=6972-6973



Sending request: PLAY 
rtsp://darwin.horizonlive.com/finlayson/sample-gsm-8000.mov/trackID=4 
RTSP/1.0 CSeq: 3
Session: 7201557908756280560
Range: npt=0-



Received PLAY response: RTSP/1.0 200 OK Server: DSS/3.0.1 [v338]-Linux
Cseq: 3
Session: 7201557908756280560
RTP-Info: url=trackID=4;seq=64105;ssrc=450743074;rtptime=1421381187

#####ROSS: At this point, my code ("libmpdemux/demux_rtp.cpp") allocates
#####ROSS: a "sh_audio_t" structure, and sets its "format" field to 0x31
#####ROSS: (to specify GSM)

==> Found audio stream: 0
Detected audio codec: [msgsmacm] afm:4 (MS GSM) Initializing audio codec...
Opening audio decoder: [acm] Win32 ACM audio decoder ======= Win32 (ACM) 
AUDIO Codec init ======= get_path('registry') -> 
'/home/rsf/.mplayer/registry' Input format:
   wFormatTag 0
   nChannels 0
   nSamplesPerSec 0
   nAvgBytesPerSec 0
   nBlockAlign 0
   wBitsPerSample 0
   cbSize 0
Output fmt:
   wFormatTag 1
   nChannels 0
   nSamplesPerSec 0
   nAvgBytesPerSec 0
   nBlockAlign 0
   wBitsPerSample 16
   cbSize 0
Loading DLL: 'msgsm32.acm'
get_path('registry') -> '/home/rsf/.mplayer/registry' Loading DLL: 
'msgsm32.acm'
get_path('registry') -> '/home/rsf/.mplayer/registry' Loading DLL: 
'msgsm32.acm'
ACM_Decoder: Unappropriate audio format Could not load/initialize Win32/ACM

#####ROSS: Why is this failing?  (By the way, a minor nit: correct English is
#####ROSS: "inappropriate", not "unappropriate")

AUDIO codec (missing DLL file?) ADecoder preinit failed :(
Couldn't initialize audio codec! -> nosound Audio: no sound!!!
Freeing 0 unused audio chunks
Video: no video!!!
Freeing 0 unused video chunks


vo: x11 uninit called but X11 not inited..


Exiting... (End of file)