The identity plugin not being called per frame?

[pisymbol .]

On Thu, Aug 1, 2019 at 11:12 AM pisymbol . <pisymbol at gmail.com> wrote:

> Here is a short log of a pipeline starting and stopping:
>
> Available Sensor modes :
> 4104 x 3046 FR=30.000000 CF=0x1009208a10 SensorModeType=4
> CSIPixelBitDepth=12 DynPixelBitDepth=12
>
> NvCameraSrc: Trying To Set Default Camera Resolution. Selected
> sensorModeIndex = 0 WxH = 4104x3046 FrameRate = 30.000000 ...
>
>
> Available Sensor modes :
> 4104 x 3046 FR=30.000000 CF=0x1009208a10 SensorModeType=4
> CSIPixelBitDepth=12 DynPixelBitDepth=12
>
> NvCameraSrc: Trying To Set Default Camera Resolution. Selected
> sensorModeIndex = 0 WxH = 4104x3046 FrameRate = 30.000000 ...
>
> Framerate set to : 30 at NvxVideoEncoderSetParameterNvMMLiteOpen : Block :
> BlockType = 4
> ===== MSENC =====
> NvMMLiteBlockCreate : Block : BlockType = 4
> NvH264MSEncSetCommonStreamAttribute: LevelIdc conformance violation
> NvH264MSEncSetCommonStreamAttribute: LevelIdc conformance violation
> Framerate set to : 30 at NvxVideoEncoderSetParameterNvMMLiteOpen : Block :
> BlockType = 4
> ===== MSENC =====
> NvMMLiteBlockCreate : Block : BlockType = 4
> NvH264MSEncSetCommonStreamAttribute: LevelIdc conformance violation
> NvH264MSEncSetCommonStreamAttribute: LevelIdc conformance violation
> ===== MSENC blits (mode: 1) into tiled surfaces =====
> ===== MSENC blits (mode: 1) into tiled surfaces =====
> 2019-08-01 11:01:40,635 INFO: Stop recording...
> 2019-08-01 11:01:40,672 DEBUG: Stopping recorder pipeline...
> [21, 17]
>
> The above is the number of numbers the "handoff" callback was called for
> the recording. It should be the total number of frames in the stream that
> landed on the filesystem, right?
>
> But it's not...
>
> $ ffprobe -v fatal -count_frames -select_streams v:0 -show_entries
> stream=nb_read_frames -of default=nokey=1:noprint_wrappers=1  capture.mkv
> 18
> $ ffprobe -v fatal -count_frames -select_streams v:1 -show_entries
> stream=nb_read_frames -of default=nokey=1:noprint_wrappers=1 capture.mkv
> 14
>
> What am I missing?
>
> The pertinent pipeline bits are:
>
> nvcamearsrc ! identity name=tapX ...
>
> Why are the number of frames LESS than the number of times "handoff" was
> called?
>
>
Is there a way to tell if a GstBuffer is actually frame data? (assuming an
element is sending buffers that are NOT frame data???)

-aps
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