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media/hardware/HardwareAPI.h: Added PrepareForAdaptivePlaybackParams

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This is the param struct used by stagefright to notify codec that
the playback may include resolution changes, so that it can prepare
accordingly to avoid port reconfiguration.

Change-Id: I64e53b7ebf74c4f9d07cc9fe0cd65be55f666afe
Signed-off-by: Lajos Molnar <lajos@google.com>
Related-to-bug: 7093648
This commit is contained in:
Lajos Molnar 2013-05-03 13:22:13 -07:00
parent 96a7dc08f2
commit dde86f7b18
1 changed files with 25 additions and 0 deletions
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include/media/hardware/HardwareAPI.h
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@ -89,6 +89,31 @@ struct VideoDecoderOutputMetaData {
buffer_handle_t pHandle; buffer_handle_t pHandle;
}; };
// A pointer to this struct is passed to OMX_SetParameter() when the extension
// index "OMX.google.android.index.prepareForAdaptivePlayback" is given.
//
// This method is used to signal a video decoder, that the user has requested
// seamless resolution change support (if bEnable is set to OMX_TRUE).
// nMaxFrameWidth and nMaxFrameHeight are the dimensions of the largest
// anticipated frames in the video. If bEnable is OMX_FALSE, no resolution
// change is expected, and the nMaxFrameWidth/Height fields are unused.
//
// If the decoder supports dynamic output buffers, it may ignore this
// request. Otherwise, it shall request resources in such a way so that it
// avoids full port-reconfiguration (due to output port-definition change)
// during resolution changes.
//
// DO NOT USE THIS STRUCTURE AS IT WILL BE REMOVED. INSTEAD, IMPLEMENT
// METADATA SUPPORT FOR VIDEO DECODERS.
struct PrepareForAdaptivePlaybackParams {
OMX_U32 nSize;
OMX_VERSIONTYPE nVersion;
OMX_U32 nPortIndex;
OMX_BOOL bEnable;
OMX_U32 nMaxFrameWidth;
OMX_U32 nMaxFrameHeight;
};
// A pointer to this struct is passed to OMX_SetParameter when the extension // A pointer to this struct is passed to OMX_SetParameter when the extension
// index for the 'OMX.google.android.index.useAndroidNativeBuffer' extension is // index for the 'OMX.google.android.index.useAndroidNativeBuffer' extension is
// given. This call will only be performed if a prior call was made with the // given. This call will only be performed if a prior call was made with the