W3bbo

I'm running the latest build of TCPMP I could find (0.72RC1) to play some videos from Microsoft's Channel9.msdn.com website (so try some to see if you can reproduce the problem).

Anyway none of the players on my device (an Axim X51v, 625Mhz w/ Intel 2600G accelerator) can play any of the newer C9 videos without dropping 99% of all the frames (wtf!).

TCPMP when using the "Intel 2700G Decoder" driver (ideal) renders the stream, but veeerrry slowly. Audio plays fine, but only shows the first frame of video and advances video frames slowly (even though I can drag the seek bar and get those frames fast enough).

WMP doesn't use the Intel acceleration (as far as I know), but needless to say it was just as bad as TCPMP.

Conduit's Pocket Player uses WMP to render the stream, so nevermind about that.

I tried some other file formats in TCPMP and they all play a-okay, for example:

I've got an MPEG video (MPEG-1 I believe). When I ran the benchmark, TCPMP was able to play it at 5.2Mbit/s over the 1.4Mbit/s of the source media (very good).

Next I tried an older WMV video which was benchmarked at 436kbit/s over 142kbit/s, both around 4x the source speed, also very good.

But when it comes to benchmarking the C9 WMV videos I get 509kbit/s over 844kbit/s, which is very poor, and this is at 625Mhz with hardware video acceleration!

Here's the details from the Benchmark on the C9 vids:

Average Speed: 60.24%
Video Frames 154
Audio Samples 315324
Amount of Data 737KB

Bench. Time 0:11.868
Bench. Frame Rate 12.98
Bench. Sample Rate 26557
Bench. Data Rate 509 kbit/s

Original Time 0:007.150
Original Sample Rate 44100
Original Data Rate 844 kbit/s


What gives?

Hoggie3

They use some sort of weird wmv codec that takes lots of power to play. More than the axim has anyway.