[mythtvnz] Test DVB-T in Wellington up

Steven Ellis steven at openmedia.co.nz
Tue Nov 20 04:34:39 GMT 2007


On Tue, November 20, 2007 5:12 pm, Tim Boobyer wrote:
> At 05:06 p.m. 20/11/2007, you wrote:
>>On Nov 20, 2007 11:14 AM, Steven Ellis <steven at openmedia.co.nz> wrote:
>>
>> > Here are some screen shots taken with MPlayer dev-SVN-r25017-4.1.3
>> built a
>> > couple of days ago.
>> >
>> > I get a frame and then mplayer crashes
>> >
>> > http://www.mythtv.co.nz/mythtv/images/h264/clip1-sd.png
>> > http://www.mythtv.co.nz/mythtv/images/h264/clip2-SD.png
>> > http://www.mythtv.co.nz/mythtv/images/h264/hidef-HD.png
>> >
>> > I also have an additional HD TVNZ stream.
>> >
>> > http://www.mythtv.co.nz/mythtv/images/h264/tvone-HD.png
>> >
>> > Now the 1080i streams are a little odd as they are native 1:1
>> 1920x1080i
>> > whilst in Europe they tend to transmit 16:9 flagged 1440x1080i.
>> >
>> > Also I've heard that at the moment the test streams are actually being
>> > generated on a PC rather than using the production encoders.
>> >
>> > Steve
>>
>>Whats the audio supposed to be? I get a feeling I left something out
>>when i compiled mythtv.
>
> Clip1: Audio: MPEG Audio Layer 3 48000Hz stereo [Audio]
> Clip2: Audio: MPEG Audio Layer 3 48000Hz stereo [Audio]
> HD Clip: Audio: MPEG Audio 48000Hz stereo 192Kbps [Audio]
>

>From the mplayer output for clip1 it appears to be standard MP2 audio

Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
dec_audio: Allocating 4608 + 65536 = 70144 bytes for output buffer.
mp3lib: using 3DNow!Ex optimized decore!
MP3lib: init layer2&3 finished, tables done
^MMPEG 1.0, Layer II, 48000 Hz 256 kbit Stereo, BPF: 768
Channels: 2, copyright: No, original: No, CRC: Yes, emphasis: 0
AUDIO: 48000 Hz, 2 ch, s16le, 256.0 kbit/16.67% (ratio: 32000->192000)
Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)

The HD clip actually only has 192K stereo whilst the SD clips have 256K
stereo.

Steve

--------------------------------------------
Steven Ellis - Technical Director
OpenMedia Limited - The Home of myPVR
email   - steven at openmedia.co.nz
sales   - sales at openmedia.co.nz
support - support at openmedia.co.nz
website - http://www.openmedia.co.nz



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