server trick?

[mucea]

It seems that the mediadirect guys have implemented another trick in order to block channel viewing outside their website. Tested on different servers (fms15, fms30) same result: choppy audio recording (with -v parameter) or no recording at all (without it). Choppy audio in VLC 2.0.0, crash in VLC 2.1.0 nightly.
The command:

rtmpdump -v -r "rtmp://fms30.mediadirect.ro:1935/live7/_definst_" -a "live7/_definst_?id=0&publisher=2" -f "WIN 11,1,102,55" -W "http://dev.dolcetv.ro/player_test/player.swf" -p "http://dev.dolcetv.ro/" --live -y "nationaltv_low?id=0&publisher=2" -o test.flv

Do they actually intend for this to happen, or it's just some sort of flaw?

[compn]

it looks like they are using an audio codec feature which faad and ffmpeg aac decoder do not support well.

so they could be messing with something.

playing in mplayer i get lots of:

FAAD: Failed to decode frame: Gain control not yet implemented
FAAD: Failed to decode frame: Bitstream value not allowed by specification
FAAD: Failed to decode frame: Bitstream value not allowed by specification

and using ffmpeg aac decoder:

[aac @ 012537d0]960/120 MDCT window is not implemented

vlc uses faad/ffaac so its hard to fix atm.

[chap]

no problem use mplayer 0.0.9.0 (MPlayer Sherpya-SVN-r29355-4.5.0)

rtmpdump -r "rtmp://fms30.mediadirect.ro:1935/live7/_definst_" -a "live7/_definst_?id=0&publisher=2" -f "WIN 11,2,202,228" -W "http://dev.dolcetv.ro/player_test/player.swf" -p "http://dev.dolcetv.ro/" -y "nationaltv?id=0&publisher=2" -v | "C:\PROGRA~1\MPlayer\mplayer.exe" - -cache 8192

[aac @ 0x1caf1d0]960/120 MDCT window is not implemented. Update your FFmpeg vers
ion to the newest one from SVN. If the problem still occurs, it means that your
file has a feature which has not been implemented.If you want to help, upload a
sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the
 ffmpeg-devel mailing list.
[lavf] Video stream found, -vid 0
[lavf] Audio stream found, -aid 1
VIDEO:  [H264]  720x576  0bpp  25.000 fps    0.0 kbps ( 0.0 kbyte/s)
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
==========================================================================
Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding)
FAAD: compressed input bitrate missing, assuming 128kbit/s!
AUDIO: 48000 Hz, 2 ch, s16le, 128.0 kbit/8.33% (ratio: 16000->192000)
Selected audio codec: [faad] afm: faad (FAAD AAC (MPEG-2/MPEG-4 Audio))
==========================================================================
AO: [dsound] 48000Hz 2ch s16le (2 bytes per sample)
Starting playback...
VDec: vo config request - 720 x 576 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is undefined - no prescaling applied.
VO: [directx] 720x576 => 720x576 Planar YV12
FAAD: Failed to decode frame: Scalefactor out of range %  0.9% 0 0
FAAD: Failed to decode frame: Maximum number of bitstream elements exceeded
FAAD: Failed to decode frame: Scalefactor out of range %  1.0% 0 0
FAAD: Failed to decode frame: Maximum number of scalefactor bands exceeded
FAAD: Failed to decode frame: Scalefactor out of range %  0.9% 0 0
FAAD: Failed to decode frame: Scalefactor out of range %  0.9% 0 0
A:  10.0 V:   9.9 A-V:  0.115 ct:  0.770   0/  0 20% 16%  0.9% 0 0

[bat999]

Originally Posted by chap

no problem use mplayer 0.0.9.0 (MPlayer Sherpya-SVN-r29355-4.5.0)

It is a problem because my version is this one:-
MPlayer SVN-r34842-4.5.2 (C) 2000-2012 MPlayer Team

Where is this one:- MPlayer Sherpya-SVN-r29355-4.5.0 ?

[chap]

Originally Posted by bat999

It is a problem because my version is this one:-
MPlayer SVN-r34842-4.5.2 (C) 2000-2012 MPlayer Team

Where is this one:- MPlayer Sherpya-SVN-r29355-4.5.0 ?

http://mplayer.org.ua/files/windows/...4-svn-29355.7z

[bat999]

Originally Posted by chap

http://mplayer.org.ua/files/windows/...4-svn-29355.7z

Thanks for that.
With Linux I can download the file with RTMPDump and convert the audio using MEncoder Sherpya-SVN-r29355-4.5.0 and WINE.
Like this:-

mencoder test.flv -of lavf -ovc copy -oac lavc -lavcopts aglobal=1:acodec=libfaac:abitrate=64 -o foo.mkv

[karlo2105]

I don't have sound issues on Ubuntu linux with those channels on VLC 1.1.12. But I have sound issues with this VLC version on Ukrainian Sport 1 & 2 channels which is solved on VLC 2.0.2. ;-)

[mucea]

Originally Posted by chap

no problem use mplayer 0.0.9.0 (MPlayer Sherpya-SVN-r29355-4.5.0)

It certainly works. I wonder what's gotten into these guys with this particular AAC audio encoding, the same thing with VLC rejecting the audio happened in the case of Digi24 (an info channel) which made me actually consider browser broadcast instead of launching rtmpdump+VLC.

http://www.digi24.ro/static_dev/public_theme_v3/mediaplayer/player.swf?file=digi24live&type=rtmp&streamer=rtmpe://82.76.39.75:80/digi24edge&stretching=full&displayclick=fullscreen&autostart=true

Thanks for the MPlayer tip.

[KSV]

Originally Posted by mucea

I wonder what's gotten into these guys with this particular AAC audio encoding, the same thing with VLC rejecting the audio happened in the case of Digi24 (an info channel) which made me actually consider browser broadcast instead of launching rtmpdump+VLC.

because they are morons. IIRC many videos served by mediadirect.ro also have freezing frames problem.

[bat999]

Hi
The aac codec used in the downloaded flv files from nationaltv.ro is shown by MediaInfo to be:-
"Codec ID : 10".
It seems that modern versions of FFplay and VLC and MPlayer can't play it but older versions of VLC and MPlayer can play it OK.
Is this because it's an "old" codec that libavcodec have deliberately dropped, or is it a libavcodec "regression"?
Or is there something wrong with their equipment at nationaltv.ro?
Any ideas?

FFmpeg/libavcodec audio decoders
[aac @ 0x8c5e500]960/120 MDCT window is not implemented.
Update your FFmpeg version to the newest one from Git.
If the problem still occurs, it means that your file has a feature which has not been implemented.