roman380 / MediaFoundationMinimalAudioPlayback

Minimalistic code snippet to play MP3 file with Microsoft Media Foundation

MediaFoundationMinimalAudioPlayback

See original StackOverflow question.

The application plays an MP3 file (you should supply yours) in less than 100 lines of C++ code with Microsoft Media Foundation.

See wil branch with a bit more of code, and the code that produces printout below.

Note that we are supplying MP3 file media source (node 0) and default audio output renderer (AKA sink, output; node 1). Microsoft Media Foundation resolves topology and supplies two transforms in order to connect source to sink:

1. MF_TOPONODE_DECODER CLSID_MP3DecMediaObject to decode MP3 audio
2. CLSID_AudioResamplerMediaObject to fit audio format to what device is capable to play

Details

Event: MESessionTopologySet
  Node Count: 4
  Node 0: MF_TOPOLOGY_SOURCESTREAM_NODE
    MF_TOPONODE_MEDIASTART
    MF_TOPONODE_SOURCE
    MF_TOPONODE_PRESENTATION_DESCRIPTOR
    MF_TOPONODE_STREAM_DESCRIPTOR
  Node 1: MF_TOPOLOGY_OUTPUT_NODE
    MF_TOPONODE_STREAMID
    MF_TOPONODE_TRANSFORM_OBJECTID {D23E6476-B104-4707-81CB-E1CA19A07016}
  Node 2: MF_TOPOLOGY_TRANSFORM_NODE
    MF_TOPONODE_MARKIN_HERE
    MF_TOPONODE_MARKOUT_HERE
    MF_TOPONODE_DECODER
    MF_TOPONODE_TRANSFORM_OBJECTID {BBEEA841-0A63-4F52-A7AB-A9B3A84ED38A}
  Node 3: MF_TOPOLOGY_TRANSFORM_NODE
    MF_TOPONODE_TRANSFORM_OBJECTID {F447B69E-1884-4A7E-8055-346F74D6EDB3}
Event: MESessionNotifyPresentationTime
Event: MESessionCapabilitiesChanged
  Capabilities: MFSESSIONCAP_START MFSESSIONCAP_SEEK MFSESSIONCAP_RATE_FORWARD MFSESSIONCAP_DOES_NOT_USE_NETWORK
  Change: MFSESSIONCAP_START MFSESSIONCAP_SEEK MFSESSIONCAP_RATE_FORWARD MFSESSIONCAP_DOES_NOT_USE_NETWORK
Event: MESessionTopologyStatus MF_TOPOSTATUS_READY
Event: MESessionTopologyStatus MF_TOPOSTATUS_STARTED_SOURCE
Event: MEExtendedType
Event: MESessionCapabilitiesChanged
  Capabilities: MFSESSIONCAP_START MFSESSIONCAP_SEEK MFSESSIONCAP_PAUSE MFSESSIONCAP_RATE_FORWARD MFSESSIONCAP_DOES_NOT_USE_NETWORK
  Change: MFSESSIONCAP_PAUSE
Event: MESessionStarted
...
Event: MEEndOfPresentation
Event: MESessionTopologyStatus MF_TOPOSTATUS_ENDED
Event: MESessionCapabilitiesChanged
  Capabilities: MFSESSIONCAP_START MFSESSIONCAP_SEEK MFSESSIONCAP_RATE_FORWARD MFSESSIONCAP_DOES_NOT_USE_NETWORK
  Change: MFSESSIONCAP_PAUSE
Event: MESessionEnded