Problem displaying MPEG4 H264 video: waiting for SPS

[gargamel67]

I'm trying to stream a video clip in MPEG4.

The server instance plays fine.

The client instance only outputs the sound and there is no video.

This are the logs of the client:

...

main debug: `http://localhost:1234' gives access `http' demux `' path `localhost:1234'
main debug: creating demux: access='http' demux='' path='localhost:1234'
main debug: looking for access_demux module: 0 candidates
main warning: no access_demux module matched "http"
main debug: creating access 'http' path='localhost:1234'
main debug: looking for access2 module: 7 candidates
access_http debug: http: server='localhost' port=1234 file='(null)
main debug: net: connecting to localhost port 1234
main debug: connection in progress
access_http debug: protocol 'HTTP' answer code 200
access_http debug: Content-Type: application/octet-stream
main debug: using access2 module "access_http"
main debug: pre-buffering...
main debug: received first data for our buffer
main debug: pre-buffering done 7332 bytes in 0s - 35 kbytes/s
main debug: creating demux: access='http' demux='' path='localhost:1234'
main debug: looking for demux2 module: 44 candidates
main debug: using demux2 module "ts"
main debug: looking for a subtitle file in C:\Program Files\VideoLAN\VLC\
ts debug: DEMUX_SET_GROUP 0 00000000
main debug: `http://localhost:1234' successfully opened
ts debug: pid[69] unknown
ts debug: PATCallBack called
ts debug: new PAT ts_id=18025 version=10 current_next=1
ts debug: * number=1 pid=66
ts debug: PMTCallBack called
ts debug: new PMT program number=1 version=3 pid_pcr=68
ts debug: * es pid=68 type=27 fcc=h264
main debug: selecting program id=1
main debug: looking for decoder module: 27 candidates
ffmpeg debug: libavcodec initialized (interface 3344640 )
ffmpeg debug: postprocessing disabled
ffmpeg debug: ffmpeg codec (h264) started
main debug: using decoder module "ffmpeg"
main debug: looking for packetizer module: 17 candidates
main debug: using packetizer module "packetizer_h264"
main debug: thread 4116 (decoder) created at priority 0 (input/decoder.c:159)
ts debug: * es pid=69 type=4 fcc=mpga
main debug: looking for decoder module: 27 candidates
main debug: using decoder module "mpeg_audio"
main debug: thread 4088 (decoder) created at priority 2 (input/decoder.c:159)
ts warning: first packet for pid=68 cc=0xc
ts warning: first packet for pid=69 cc=0x3
packetizer_h264 warning: waiting for SPS
mpeg_audio debug: MPGA channels:2 samplerate:24000 bitrate:64
packetizer_h264 warning: waiting for SPS
packetizer_h264 warning: waiting for SPS
packetizer_h264 warning: waiting for SPS
main debug: no aout present, spawning one
packetizer_h264 warning: waiting for SPS
packetizer_h264 warning: waiting for SPS
main debug: looking for audio output module: 3 candidates
aout_directx debug: OpenAudio
aout_directx debug: found device: Périphérique audio principal
aout_directx debug: found device: Realtek HD Audio output
packetizer_h264 warning: waiting for SPS
packetizer_h264 warning: waiting for SPS
aout_directx debug: device supports 2 channels
aout_directx debug: device supports 1 channel
aout_directx debug: creating DirectSoundThread
main debug: thread 4568 (DirectSound Notification Thread) created at priority 15 (directx.c:372)
main debug: using audio output module "aout_directx"
aout_directx debug: DirectSoundThread ready
main debug: output 's16l' 24000 Hz Stereo frame=1 samples/4 bytes
main debug: mixer 'fl32' 24000 Hz Stereo frame=1 samples/8 bytes
main debug: filter(s) 'fl32'->'s16l' 24000 Hz->24000 Hz Stereo->Stereo
main debug: looking for audio filter module: 24 candidates
main debug: using audio filter module "float32tos16"
main debug: found a filter for the whole conversion
main debug: looking for audio mixer module: 3 candidates
main debug: using audio mixer module "trivial_mixer"
main debug: input 'mpga' 24000 Hz Stereo frame=576 samples/489 bytes
main debug: filter(s) 'mpga'->'fl32' 24000 Hz->24000 Hz Stereo->Stereo
main debug: looking for audio filter module: 24 candidates
main debug: using audio filter module "mpgatofixed32"
main debug: found a filter for the whole conversion
main debug: filter(s) 'fl32'->'fl32' 26400 Hz->24000 Hz Stereo->Stereo
main debug: looking for audio filter module: 24 candidates
main debug: using audio filter module "bandlimited_resampler"
main debug: found a filter for the whole conversion
packetizer_h264 warning: waiting for SPS
packetizer_h264 warning: waiting for SPS
packetizer_h264 warning: waiting for SPS
packetizer_h264 warning: waiting for SPS
packetizer_h264 warning: waiting for SPS

...

My question is: what does "waiting for SPS" mean?
I think the player is waiting for something that doesn't never come so video will never be played...

(I'm using VLC 0.8.5)

Pascal.

[koo]

SPS and PPS is required when decoding.

googling the RBSP(Raw Byte Sequence Payload)

as I know, H264 decoder needs RBSP.

SPS(Sequence Parameter Set)
PPS(Picture Parameter Set)