针对你遇到的错误 "e/mediametadataretrieverjni: getframeattime: videoframe is a null pointer",我们可以从以下几个方面进行排查和解决: 确认MediaMetadataRetriever对象是否已正确初始化: 在调用getFrameAtTime方法之前,必须确保MediaMetadataRetriever对象已经被正确初始化。你可以通过以下代码进行初始化: java MediaMetadat...
E/MediaMetadataRetrieverJNI: getFrameAtTime: videoFrame is a NULL pointer I recorded a video in SamsungS7 edge back camera, I have integrated Camera-2-API in my project, I try to trim video at this moment this crash will happen, I maintain resolution for recording is 1920x1080 resolution. ...
This frame object has GetRowBytes to retrieve a pointer to the raw pixel data and a GetStreamTime method to retrieve the timecode. The pixel data is an array of pixels in whatever pixel format you selected arranged as an array of width x height x sizeof of a pixel in bytes. ...
While mapped, the video data of each plane can accessed using thebits() function, which returns a pointer to a buffer. The size of this buffer is given by themappedBytes() function, and the size of each line is given bybytesPerLine(). The return value of the handle() function may ...
The size, in bytes, of the content key that is specified in the pContentKey member. The array of component histograms. A disabled component has it’s struct members set to zero.
For example, it is being read for display. E_POINTER NULL pointer argument. S_OK Success. VFW_E_INVALIDSUBTYPE The decoder did not use a DXVA decoding type when it connected to the video renderer. VFW_E_NOT_CONNECTED The pins on the decoder and video renderer fi...
kIntelVvpCoreInstanceErr if the instance is a null pointer kIntelVvpVfbRegMapVersionErr if the register map is not supported intel_vvp_vfb_get_lite_mode Prototype bool intel_vvp_vfb_get_lite_mode(intel_vvp_vfb_instance *instance); Description Returns the value of the LITE_MODE register...
kIntelVvpCoreInstanceErr if the instance is a null pointer kIntelVvpFrameWriterRegMapVersionErr if the register map is not supported intel_vvp_vfw_get_lite_mode Prototype bool intel_vvp_vfw_get_lite_mode(intel_vvp_vfw_instance *instance); ...
However, ExtractImage() has a problem that the validity period of obtained data is short.Consider the following code:// Stores image data outside the scope of the callback. byte[]? image = null; using var device = await descriptor0.OpenAsync( descriptor0.Characteristics[0], bufferScope =...
Pointer to theIMediaSampleinterface of a media sample. This sample does not contain a video frame, but is used to specify the time stamp and any sample flags. (For more information about sample flags, seeAM_SAMPLE2_PROPERTIES. Return value ...