v4l2_m2m_buf_done is called in lat work queue, v4l2_ctrl_request_complete is called in core queue. The request status of output queue will be set to MEDIA_REQUEST_STATE_COMPLETE when v4l2_m2m_buf_done is called, leading to output queue request complete fail. Must move v4l2_ctrl_request_complete in front of v4l2_m2m_buf_done. Patch 1 setting request complete before buffer done Patch 2 change flush decode from capture to output when stream off Patch 3 flush decoder before remove all source buffer Patch 4 using input information to get vb2 buffer Patch 5 store source vb2 buffer Patch 6 replace v4l2_m2m_next_src_buf with v4l2_m2m_src_buf_remove Patch 7 remove media request checking --- compared with v2: - add patch 5/6/7 to fix decode again issue - add fluster test result with mt8195 platform(same with no changed): 1> ./fluster.py run -d GStreamer-VP8-V4L2SL-Gst1.0 -j1 -t 90 VP8-TEST-VECTORS 59/61 2> ./fluster.py run -d GStreamer-VP9-V4L2SL-Gst1.0 -j1 -t 90 VP9-TEST-VECTORS 276/305 3> ./fluster.py run -d GStreamer-AV1-V4L2SL-Gst1.0 -j1 -t 90 AV1-TEST-VECTORS 237/239 4> ./fluster.py run -d GStreamer-H.264-V4L2SL-Gst1.0 -j1 -t 90 JVT-AVC_V1 95/135 5> ./fluster.py run -d GStreamer-H.265-V4L2SL-Gst1.0 -j1 -t 90 JCT-VC-HEVC_V1 142/147 compared with v1: - add patch 2/3/4 to fix timing issue. --- Yunfei Dong (7): media: mediatek: vcodec: setting request complete before buffer done media: mediatek: vcodec: change flush decode from capture to output when stream off media: mediatek: vcodec: flush decoder before remove all source buffer media: mediatek: vcodec: using input information to get vb2 buffer media: mediatek: vcodec: store source vb2 buffer media: mediatek: vcodec: replace v4l2_m2m_next_src_buf with v4l2_m2m_src_buf_remove media: mediatek: vcodec: remove media request checking .../mediatek/vcodec/decoder/mtk_vcodec_dec.c | 52 +++++++++---------- .../vcodec/decoder/mtk_vcodec_dec_drv.h | 4 +- .../vcodec/decoder/mtk_vcodec_dec_stateless.c | 48 ++++++++++++----- .../vcodec/decoder/vdec/vdec_av1_req_lat_if.c | 18 ++++--- .../decoder/vdec/vdec_h264_req_multi_if.c | 4 +- .../decoder/vdec/vdec_hevc_req_multi_if.c | 4 +- .../vcodec/decoder/vdec/vdec_vp9_req_lat_if.c | 19 ++++--- .../mediatek/vcodec/decoder/vdec_msg_queue.h | 4 +- 8 files changed, 89 insertions(+), 64 deletions(-) -- 2.18.0