hi_mpi_pngd_send_stream

The Atlas 200/300/500 Inference Product does not support this API.

The Atlas Training Series Product does not support this API.

Feeds the stream and decoding result buffer to a decoding channel.

Ensure that a channel has been created. Otherwise, the error code HI_ERR_PNGD_UNEXIST is returned. If the channel is destroyed when streams are being sent, the error code HI_ERR_PNGD_UNEXIST is returned.
To send a stream, a complete PNG image is required. Otherwise, an error occurs during decoding.
In non-blocking mode, the error code HI_ERR_PNGD_BUF_FULL is returned if the stream buffer is full.
In timeout mode, if the stream fails to be fed within the specified timeout interval, the error code HI_ERR_PNGD_BUF_FULL is returned.
For details about the requirements for the input and output images during image decoding, see Functions and Restrictions.
For decoding, the input buffer and output buffer must be allocated by using the hi_mpi_dvpp_malloc call and freed by using the hi_mpi_dvpp_free call, respectively. Place the hi_mpi_dvpp_free call after the hi_mpi_pngd_get_image_data call.

hi_s32 hi_mpi_pngd_send_stream(hi_pngd_chn chn, const hi_img_stream *stream, hi_pic_info *png_pic_info, hi_s32 milli_sec)

Parameter	Input/Output	Description
chn	Input	Decoding channel ID. The value range of this parameter is [0, 128). The maximum number of channels is 128.
stream	Input	Pointer to the input stream information. The configured addr must be a buffer address on the device.
png_pic_info	Input	Pointer to the output image information.
milli_sec	Input	Timeout interval (ms). -1: blocking mode. 0: non-blocking mode. > 0: timeout interval (timeout mode). The timeout interval varies with the operating system. The deviation is generally within a time slice of an operating system. For example, if the time slice of an operating system is 4 ms and the value of milli_sec is set to 1, the actual timeout interval ranges from 1 ms to 5 ms. When the CPU load is high, the timeout interval may fluctuate.

Parent topic: PNGD