If the DRC is near the end of the stream the client may send a V4L2_DEC_CMD_STOP before the DRC occurs. V4L2_DEC_CMD_STOP puts the driver into the VENUS_DEC_STATE_DRAIN state. DRC must be aware so that after the DRC event the state can be restored correctly.
Signed-off-by: Fritz Koenig <[email protected]> --- v2: remove TODO drivers/media/platform/qcom/venus/core.h | 1 + drivers/media/platform/qcom/venus/vdec.c | 17 +++++++++++++++-- 2 files changed, 16 insertions(+), 2 deletions(-) diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h index 2b0899bf5b05f..1680c936c06fb 100644 --- a/drivers/media/platform/qcom/venus/core.h +++ b/drivers/media/platform/qcom/venus/core.h @@ -406,6 +406,7 @@ struct venus_inst { unsigned int core_acquired: 1; unsigned int bit_depth; bool next_buf_last; + bool drain_active; }; #define IS_V1(core) ((core)->res->hfi_version == HFI_VERSION_1XX) diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c index 5671cf3458a68..1d551b4d651a8 100644 --- a/drivers/media/platform/qcom/venus/vdec.c +++ b/drivers/media/platform/qcom/venus/vdec.c @@ -523,8 +523,10 @@ vdec_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd *cmd) ret = hfi_session_process_buf(inst, &fdata); - if (!ret && inst->codec_state == VENUS_DEC_STATE_DECODING) + if (!ret && inst->codec_state == VENUS_DEC_STATE_DECODING) { inst->codec_state = VENUS_DEC_STATE_DRAIN; + inst->drain_active = true; + } } unlock: @@ -976,10 +978,14 @@ static int vdec_start_capture(struct venus_inst *inst) inst->codec_state = VENUS_DEC_STATE_DECODING; + if (inst->drain_active) + inst->codec_state = VENUS_DEC_STATE_DRAIN; + inst->streamon_cap = 1; inst->sequence_cap = 0; inst->reconfig = false; inst->next_buf_last = false; + inst->drain_active = false; return 0; @@ -1105,6 +1111,7 @@ static int vdec_stop_capture(struct venus_inst *inst) /* fallthrough */ case VENUS_DEC_STATE_DRAIN: inst->codec_state = VENUS_DEC_STATE_STOPPED; + inst->drain_active = false; /* fallthrough */ case VENUS_DEC_STATE_SEEK: vdec_cancel_dst_buffers(inst); @@ -1304,8 +1311,10 @@ static void vdec_buf_done(struct venus_inst *inst, unsigned int buf_type, v4l2_event_queue_fh(&inst->fh, &ev); - if (inst->codec_state == VENUS_DEC_STATE_DRAIN) + if (inst->codec_state == VENUS_DEC_STATE_DRAIN) { + inst->drain_active = false; inst->codec_state = VENUS_DEC_STATE_STOPPED; + } } if (!bytesused) @@ -1429,9 +1438,13 @@ static void vdec_event_notify(struct venus_inst *inst, u32 event, case EVT_SYS_EVENT_CHANGE: switch (data->event_type) { case HFI_EVENT_DATA_SEQUENCE_CHANGED_SUFFICIENT_BUF_RESOURCES: + if (inst->codec_state == VENUS_DEC_STATE_DRAIN) + inst->codec_state = VENUS_DEC_STATE_DECODING; vdec_event_change(inst, data, true); break; case HFI_EVENT_DATA_SEQUENCE_CHANGED_INSUFFICIENT_BUF_RESOURCES: + if (inst->codec_state == VENUS_DEC_STATE_DRAIN) + inst->codec_state = VENUS_DEC_STATE_DECODING; vdec_event_change(inst, data, false); break; case HFI_EVENT_RELEASE_BUFFER_REFERENCE: -- 2.29.2.454.gaff20da3a2-goog
