Devin Heitmueller wrote: > On Fri, Jul 3, 2009 at 12:01 PM, Jelle de Jong<jelledejong@xxxxxxxxxxxxx> wrote: >> Antti Palosaari wrote: >>> On 06/26/2009 11:07 AM, Jelle de Jong wrote: >>>> Hi all, >>>> >>>> Because i now use a new kernel and new mplayer versions I did some >>>> testing again on one of my long standing issues. >>>> >>>> My Afatech AF9015 DVB-T USB2.0 stick does not work with mplayer, other >>>> em28xx devices do work with mplayer. >>>> >>>> Would somebody be willing to do some tests and see if mplayers works on >>>> your devices? >>>> >>>> Debian 2.6.30-1 >>>> >>>> /usr/bin/mplayer -identify -v -dvbin timeout=10 dvb://"3FM(Digitenne)" >>>> >>>> See the attachments for full details. >>> For me, this works. I tested this with MT2060 tuner device, as you have >>> also. If I remember correctly it worked for you also when channel is >>> selected by using tzap. I don't know what mplayer does differently. >>> >>> Do the television channels in that same multiplex work with mplayer? >>> /usr/bin/mplayer -identify -v -dvbin timeout=10 dvb://"TELEVISION CHANNEL" >>> >>> I added some delay for demod to wait lock. Could you try if this helps? >>> http://linuxtv.org/hg/~anttip/af9015_delay/ >>> >>> regards >>> Antti >> Hi Antti, >> >> I will get back to this next week, its a lot of work for me to compile >> the drivers but I will see if i can get it running. (a pre-compiled >> driver and some insmod for the 686 2.9.30 kernel would be an fast track >> option if you want to test it a.s.a.p.) >> >> Thanks in advance, >> >> Jelle de Jong >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-media" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at �http://vger.kernel.org/majordomo-info.html >> > > Antti, > > Thanks to Jelle providing an environment to debug the issue in, I > isolated the problem. This is actually a combination of bugs in > mplayer and the af9013 driver not handling the condition as gracefully > as some other demods. > > First the bugs in mplayer: > > The following is the line from the channels.conf where tuning failed: > > Frequency in question: > 3FM(Digitenne):722000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_AUTO:FEC_AUTO:QAM_AUTO:TRANSMISSION_MODE_AUTO:GUARD_INTERVAL_AUTO:HIERARCHY_AUTO:0:7142:1114 > > Mplayer does not support "TRANSMISSION_MODE_AUTO", > "GUARD_INTERVAL_AUTO" and "QAM_AUTO" (for the constellation). In the > case of the transmission mode and constellation, mplayer does not > populate the field at all in the struct sent to the ioctl(), so you > get whatever garbage is on the stack. For the guard interval field, > it defaults to GUARD_INTERVAL_1_4 if it is an unrecognized value. > > I confirmed the mplayer behavior with the version Jelle has, as well > as checking the source code in the svn trunk for the latest mplayer. > > So, why does it work with some tuners but not the af9013? Well, some > demodulators check to see if *any* of the fields are "_AUTO" and if > any of them are, then it puts the demod into auto mode and disregards > whatever is in the other fields. However, the af9013 looks at each > field, and if any of them are an unrecognized value, the code bails > out in af9013_set_ofdm_params(). As a result, the tuning never > actually happens. > > The behavior should be readily apparent if you were to put the above > line into your channels.conf and try to tune (note I had to add > printk() lines to af9013_set_ofdm_params() to see it bail out in the > first switch statement. > > Anitti, do you want to take it from here, or would you prefer I rework > the routine to put the device into auto mode if any of the fields are > auto? > > Devin > Hi Antti, if you want access to the test environment just give me an email, it is interesting because currently the Afatech AF9013 DVB-T is in that weird lock down mode I talked you about! It would be very nice if you can detect if it is a software or hardware issue, because the devices doesn't tune anymore but seems to respond to other stuff. Best regards, Jelle de Jong -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
