vdec_release_frame

Product	Supported
Atlas 350 Accelerator Card	√
Atlas A3 training product / Atlas A3 inference product	√
Atlas A2 training product / Atlas A2 inference product	√
Atlas training product	x
Atlas inference product	√
Atlas 200I/500 A2 inference product	√

Releases resources after decoding is complete.

C Prototype

        
             hi_s32 hi_mpi_vdec_release_frame(hi_vdec_chn chn, const hi_video_frame_info *frame_info)

Python Function

        
             ret = acl.himpi.vdec_release_frame(chn, frame_info)

Parameter	Description
chn	Int, decoding channel ID.
frame_info	Dict, dictionary of decoded image information, which is obtained by the vdec_get_frame call. For details, see hi_video_frame_info.

Return Value	Description
ret	Int, error code. 0 indicates success. Other values indicate failure. For details, see VDEC/JPEGD Return Codes. If no channel is created during image decoding, the error code HI_ERR_VDEC_UNEXIST is returned. If the channel is destroyed when decoded images are being obtained, the error code HI_ERR_VDEC_UNEXIST is returned. If the channel is reset when decoded images are being obtained, the error code HI_ERR_VDEC_UNEXIST is returned. When decoded images are obtained in non-blocking mode, HI_ERR_VDEC_BUF_EMPTY is returned if there are no images in the buffer. In timeout mode, if no hardware decoding result is fetched within the specified timeout interval, the error code HI_ERR_VDEC_BUF_EMPTY is returned. In this case, increase the timeout period or call this API repeatedly to obtain the decoding result.

Description

ret

Int, error code.

Use this API in pair with acl.himpi.vdec_get_frame. Free the obtained data in a timely manner; otherwise, the decoding process will be blocked to wait for resources.
The data to be freed is that obtained by the acl.himpi.vdec_get_frame call without any change.

For details about the API call sequence, see JPEGE and VENC.

Parent topic: VDEC/JPEGD APIs