// Oprogramowanie Roman Ryltsov
This is not really obvious: Windows Media Player refuses to open a Windows Media (ASF) file with an undescriptive error message: “Windows Media Player encountered a problem while playing the file”. The problem, however, is that the file is actually good, more or less. The file plays well in DirectShow and Media Foundation APIs. There…
DirectShow streaming and playback in particular offers flexible playback rates for scenarios where playback is requested to take place slower or faster than real time. For a DirectShow developer, the outer interface is pretty straightforward:IMediaPosition::put_Rate takes playback rate and that’s it. Playback rate. Must not be zero. The playback rate is expressed as a ratio of…
The minimalistic sample demonstrates support of [deprecated] Waveform Audio API for multiple playback streams. Depending on command line parameters, the application starts threads to open audio hardware using separate waveOutOpen call and stream one or more generated sine waves: 1,000 Hz sine wave as 22,050 Hz, Mono, 16-bit PCM (command line parameter “a”) 5,000 Hz…