自学教程：C++ vcd_mark_frame_channel函数代码示例

static void vcd_clnt_cb_in_eos    (struct vcd_clnt_ctxt *cctxt,     u32 event,     u32 status,     void *payload, size_t sz, u32 *ddl_handle, void *const client_data) {	struct vcd_dev_ctxt *dev_ctxt = cctxt->dev_ctxt;	struct vcd_transc *transc = NULL;	u32 frm_trans_end = false, rc = VCD_S_SUCCESS;	if (cctxt->ddl_handle != ddl_handle) {		VCD_MSG_ERROR("ddl_handle mismatch");		return;	}	switch (event) {	case VCD_EVT_RESP_INPUT_DONE:		{			rc = vcd_handle_input_done_in_eos(cctxt, payload,						     status);			break;		}	case VCD_EVT_RESP_OUTPUT_DONE:		{			rc = vcd_handle_frame_done_in_eos(cctxt, payload,						     status);			break;		}	case VCD_EVT_RESP_OUTPUT_REQ:		{			rc = vcd_handle_output_required(cctxt, payload,					status);			break;		}	case VCD_EVT_RESP_EOS_DONE:		{			transc = (struct vcd_transc *)client_data;			vcd_handle_eos_done(cctxt, transc, status);			vcd_mark_frame_channel(cctxt->dev_ctxt);			break;		}	case VCD_EVT_IND_OUTPUT_RECONFIG:		{			rc = vcd_handle_ind_output_reconfig(cctxt,				payload, status);			if (!VCD_FAILED(rc)) {				frm_trans_end = true;				payload = NULL;				vcd_do_client_state_transition(cctxt,					VCD_CLIENT_STATE_RUN,					CLIENT_STATE_EVENT_NUMBER					(clnt_cb));				VCD_MSG_LOW					("RECONFIGinEOS:Suspending Client");				rc = vcd_sched_suspend_resume_clnt(cctxt,						false);				if (VCD_FAILED(rc)) {					VCD_MSG_ERROR					("Failed: suspend_resume_clnt. rc=0x%x",						rc);				}			}			break;		}	case VCD_EVT_IND_HWERRFATAL:		{			vcd_handle_ind_hw_err_fatal(cctxt,				VCD_EVT_IND_HWERRFATAL,	status);			break;		}	case VCD_EVT_IND_INFO_OUTPUT_RECONFIG:		{			vcd_handle_ind_info_output_reconfig(cctxt, status);			break;		}	default:		{			VCD_MSG_ERROR			    ("Unexpected callback event=%d status=%d from DDL",			     event, status);			dev_ctxt->command_continue = false;			break;		}	}	if (!VCD_FAILED(rc) &&		(event == VCD_EVT_RESP_INPUT_DONE ||		event == VCD_EVT_RESP_OUTPUT_DONE ||		event == VCD_EVT_RESP_OUTPUT_REQ ||		event == VCD_EVT_IND_OUTPUT_RECONFIG)) {		if (payload && ((struct ddl_frame_data_tag *)			payload)->frm_trans_end) {			vcd_mark_frame_channel(cctxt->dev_ctxt);			frm_trans_end = true;		}//.........这里部分代码省略.........

static void  vcd_clnt_cb_in_invalid(   struct vcd_clnt_ctxt *cctxt, u32 event, u32 status,   void *payload, size_t sz, u32 *ddl_handle,   void *const client_data){	struct vcd_dev_ctxt *dev_ctxt = cctxt->dev_ctxt;	VCD_MSG_LOW("vcd_clnt_cb_in_invalid:");	if (cctxt->ddl_handle != ddl_handle) {		VCD_MSG_ERROR("ddl_handle mismatch");		return;	}	switch (event) {	case VCD_EVT_RESP_STOP:		{			vcd_handle_stop_done_in_invalid(cctxt,				(struct vcd_transc *)client_data,				status);			break;		}	case VCD_EVT_RESP_INPUT_DONE:	case VCD_EVT_RESP_OUTPUT_REQ:		{			if (cctxt->status.frame_submitted)				cctxt->status.frame_submitted--;			if (payload && ((struct ddl_frame_data_tag *)							payload)->frm_trans_end)				vcd_mark_frame_channel(cctxt->dev_ctxt);			break;		}	case VCD_EVT_RESP_OUTPUT_DONE:		{			if (payload && ((struct ddl_frame_data_tag *)							payload)->frm_trans_end)				vcd_mark_frame_channel(cctxt->dev_ctxt);			break;		}	case VCD_EVT_RESP_TRANSACTION_PENDING:		{			if (cctxt->status.frame_submitted)				cctxt->status.frame_submitted--;			vcd_mark_frame_channel(cctxt->dev_ctxt);			break;		}	case VCD_EVT_IND_HWERRFATAL:		{			if (status == VCD_ERR_HW_FATAL)				vcd_handle_stop_done_in_invalid(cctxt,					(struct vcd_transc *)client_data,					status);			break;		}	case VCD_EVT_RESP_EOS_DONE:		{			vcd_mark_frame_channel(cctxt->dev_ctxt);			break;		}	case VCD_EVT_IND_OUTPUT_RECONFIG:		{			if (cctxt->status.frame_submitted > 0)				cctxt->status.frame_submitted--;			else				cctxt->status.frame_delayed--;			vcd_mark_frame_channel(cctxt->dev_ctxt);			break;		}	default:		{			VCD_MSG_ERROR("Unexpected callback event=%d status=%d"				"from DDL",	event, status);			dev_ctxt->command_continue = false;			break;		}	}}

static void vcd_clnt_cb_in_stopping    (struct vcd_clnt_ctxt *cctxt,     u32 event,     u32 status,     void *payload, size_t sz, u32 *ddl_handle, void *const client_data) {	struct vcd_dev_ctxt *dev_ctxt = cctxt->dev_ctxt;	u32 rc = VCD_S_SUCCESS;	u32 frm_trans_end = false;	VCD_MSG_LOW("vcd_clnt_cb_in_stopping:");	if (cctxt->ddl_handle != ddl_handle) {		VCD_MSG_ERROR("ddl_handle mismatch");		return;	}	switch (event) {	case VCD_EVT_RESP_INPUT_DONE:		{			rc = vcd_handle_input_done(cctxt,						   payload,						   VCD_EVT_RESP_INPUT_FLUSHED,						   status);			break;		}	case VCD_EVT_RESP_OUTPUT_DONE:		{			rc = vcd_handle_frame_done(cctxt,						   payload,						   VCD_EVT_RESP_OUTPUT_FLUSHED,						   status);			break;		}	case VCD_EVT_RESP_OUTPUT_REQ:		{			rc = vcd_handle_output_required_in_flushing(cctxt,				payload);			break;		}	case VCD_EVT_RESP_STOP:		{			vcd_handle_stop_done(cctxt,					     (struct vcd_transc *)					     client_data, status);			break;		}	case VCD_EVT_IND_OUTPUT_RECONFIG:		{			(void) vcd_handle_ind_output_reconfig(cctxt,				payload, status);			frm_trans_end = true;			payload = NULL;			break;		}	case VCD_EVT_IND_HWERRFATAL:		{			vcd_handle_ind_hw_err_fatal(cctxt, VCD_EVT_RESP_STOP,				status);			break;		}	default:		{			VCD_MSG_ERROR			    ("Unexpected callback event=%d status=%d from DDL",			     event, status);			dev_ctxt->command_continue = false;			break;		}	}	if (!VCD_FAILED(rc) && ((event == VCD_EVT_RESP_INPUT_DONE ||		event == VCD_EVT_RESP_OUTPUT_DONE) ||		event == VCD_EVT_RESP_OUTPUT_REQ ||		event == VCD_EVT_IND_OUTPUT_RECONFIG)) {		if (payload &&			((struct ddl_frame_data_tag *)/			payload)->frm_trans_end) {			vcd_mark_frame_channel(cctxt->dev_ctxt);			frm_trans_end = true;		}		if (frm_trans_end && !cctxt->status.frame_submitted) {				VCD_MSG_HIGH					("All pending frames recvd from DDL");				vcd_flush_bframe_buffers(cctxt,							VCD_FLUSH_INPUT);				vcd_flush_output_buffers(cctxt);//.........这里部分代码省略.........

static void vcd_clnt_cb_in_eos    (struct vcd_clnt_ctxt_type_t *p_cctxt,     u32 event,     u32 status,     void *p_payload, u32 n_size, u32 *ddl_handle, void *const p_client_data) {	struct vcd_dev_ctxt_type *p_dev_ctxt = p_cctxt->p_dev_ctxt;	struct vcd_transc_type *p_transc = NULL;	u32 b_frm_trans_end = FALSE;	if (p_cctxt->ddl_handle != ddl_handle) {		VCD_MSG_ERROR("ddl_handle mismatch");		return;	}	switch (event) {	case VCD_EVT_RESP_INPUT_DONE:		{			vcd_handle_input_done_in_eos(p_cctxt, p_payload,						     status);			break;		}	case VCD_EVT_RESP_OUTPUT_DONE:		{			vcd_handle_frame_done_in_eos(p_cctxt, p_payload,						     status);			break;		}	case VCD_EVT_RESP_OUTPUT_REQ:		{			(void)vcd_handle_output_required(p_cctxt, p_payload,					status);			break;		}	case VCD_EVT_RESP_EOS_DONE:		{			p_transc = (struct vcd_transc_type *)p_client_data;			vcd_handle_eos_done(p_cctxt, p_transc, status);			break;		}	case VCD_EVT_IND_OUTPUT_RECONFIG:		{			(void) vcd_handle_ind_output_reconfig(p_cctxt,				p_payload, status);			b_frm_trans_end = TRUE;			p_payload = NULL;			break;		}	case VCD_EVT_IND_HWERRFATAL:		{			vcd_handle_ind_hw_err_fatal(p_cctxt,				VCD_EVT_IND_HWERRFATAL,	status);			break;		}	default:		{			VCD_MSG_ERROR			    ("Unexpected callback event=%d status=%d from DDL",			     event, status);			p_dev_ctxt->b_continue = FALSE;			break;		}	}	if (event == VCD_EVT_RESP_INPUT_DONE ||		event == VCD_EVT_RESP_OUTPUT_DONE ||		event == VCD_EVT_RESP_OUTPUT_REQ ||		event == VCD_EVT_IND_OUTPUT_RECONFIG) {		if (p_payload && ((struct ddl_frame_data_type_tag *)			p_payload)->b_frm_trans_end) {			vcd_mark_frame_channel(p_cctxt->p_dev_ctxt);			b_frm_trans_end = TRUE;		}		if (b_frm_trans_end && !p_cctxt->status.n_frame_submitted)			vcd_handle_eos_trans_end(p_cctxt);	}}

static void vcd_clnt_cb_in_pausing    (struct vcd_clnt_ctxt_type_t *p_cctxt,     u32 event,     u32 status,     void *p_payload, u32 size, u32 *ddl_handle, void *const p_client_data){	struct vcd_dev_ctxt_type *p_dev_ctxt = p_cctxt->p_dev_ctxt;	u32 rc = VCD_S_SUCCESS;	u32 b_frm_trans_end = FALSE;	VCD_MSG_LOW("vcd_clnt_cb_in_pausing:");	if (p_cctxt->ddl_handle != ddl_handle) {		VCD_MSG_ERROR("ddl_handle mismatch");		return;	}	switch (event) {	case VCD_EVT_RESP_INPUT_DONE:		{			rc = vcd_handle_input_done(p_cctxt, p_payload, event,						   status);			break;		}	case VCD_EVT_RESP_OUTPUT_DONE:		{			rc = vcd_handle_frame_done(p_cctxt, p_payload, event,						   status);			break;		}	case VCD_EVT_RESP_OUTPUT_REQ:		{			rc = vcd_handle_output_required(p_cctxt, p_payload,				status);			break;		}	case VCD_EVT_IND_OUTPUT_RECONFIG:		{			(void) vcd_handle_ind_output_reconfig(p_cctxt,				p_payload, status);			b_frm_trans_end = TRUE;			p_payload = NULL;			break;		}	case VCD_EVT_IND_HWERRFATAL:		{			vcd_handle_ind_hw_err_fatal(p_cctxt,				VCD_EVT_RESP_PAUSE,	status);			rc = VCD_ERR_FAIL;			break;		}	default:		{			VCD_MSG_ERROR			    ("Unexpected callback event=%d status=%d from DDL",			     event, status);			p_dev_ctxt->b_continue = FALSE;			break;		}	}	if (!VCD_FAILED(rc)) {		if (p_payload &&			((struct ddl_frame_data_type_tag *)/			p_payload)->b_frm_trans_end) {			vcd_mark_frame_channel(p_cctxt->p_dev_ctxt);			b_frm_trans_end = TRUE;		}		if (b_frm_trans_end && !p_cctxt->status.n_frame_submitted) {			VCD_MSG_HIGH			    ("All pending frames recvd from DDL");			p_cctxt->callback(VCD_EVT_RESP_PAUSE,					  VCD_S_SUCCESS,					  NULL,					  0,					  p_cctxt,					  p_cctxt->p_client_data);			vcd_do_client_state_transition(p_cctxt,					VCD_CLIENT_STATE_PAUSED,					CLIENT_STATE_EVENT_NUMBER						       (pf_clnt_cb));			rc = vcd_power_event(p_cctxt->p_dev_ctxt,					     p_cctxt,					     VCD_EVT_PWR_CLNT_PAUSE);			if (VCD_FAILED(rc)) {				VCD_MSG_ERROR//.........这里部分代码省略.........