forked from Qortal/Brooklyn
139 lines
4.6 KiB
C
139 lines
4.6 KiB
C
/*
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Copyright (c) 2012, Broadcom Europe Ltd
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of the copyright holder nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "mmal.h"
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#include "mmal_port_private.h"
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#include "mmal_buffer.h"
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#include "mmal_logging.h"
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MMAL_EVENT_FORMAT_CHANGED_T *mmal_event_format_changed_get(MMAL_BUFFER_HEADER_T *buffer)
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{
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MMAL_EVENT_FORMAT_CHANGED_T *event;
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MMAL_ES_FORMAT_T *format;
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uint32_t size;
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size = sizeof(MMAL_EVENT_FORMAT_CHANGED_T);
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size += sizeof(MMAL_ES_FORMAT_T) + sizeof(MMAL_ES_SPECIFIC_FORMAT_T);
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if (!buffer || buffer->cmd != MMAL_EVENT_FORMAT_CHANGED || buffer->length < size)
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return 0;
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event = (MMAL_EVENT_FORMAT_CHANGED_T *)buffer->data;
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format = event->format = (MMAL_ES_FORMAT_T *)&event[1];
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format->es = (MMAL_ES_SPECIFIC_FORMAT_T *)&format[1];
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format->extradata = (uint8_t *)&format->es[1];
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format->extradata_size = buffer->length - size;
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return event;
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}
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MMAL_STATUS_T mmal_event_error_send(MMAL_COMPONENT_T *component, MMAL_STATUS_T error_status)
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{
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MMAL_BUFFER_HEADER_T* event;
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MMAL_STATUS_T status;
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if(!component)
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{
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LOG_ERROR("invalid component");
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return MMAL_EINVAL;
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}
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status = mmal_port_event_get(component->control, &event, MMAL_EVENT_ERROR);
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if (status != MMAL_SUCCESS)
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{
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LOG_ERROR("event not available for component %s %p, result %d", component->name, component, status);
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return status;
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}
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event->length = sizeof(MMAL_STATUS_T);
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*(MMAL_STATUS_T *)event->data = error_status;
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mmal_port_event_send(component->control, event);
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return MMAL_SUCCESS;
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}
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MMAL_STATUS_T mmal_event_eos_send(MMAL_PORT_T *port)
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{
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MMAL_EVENT_END_OF_STREAM_T *event;
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MMAL_BUFFER_HEADER_T *buffer;
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MMAL_STATUS_T status;
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if(!port)
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{
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LOG_ERROR("invalid port");
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return MMAL_EINVAL;
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}
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status = mmal_port_event_get(port->component->control, &buffer, MMAL_EVENT_EOS);
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if (status != MMAL_SUCCESS)
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{
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LOG_ERROR("event not available for port %s %p, result %d", port->name, port, status);
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return status;
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}
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buffer->length = sizeof(*event);
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event = (MMAL_EVENT_END_OF_STREAM_T *)buffer->data;
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event->port_type = port->type;
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event->port_index = port->index;
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mmal_port_event_send(port->component->control, buffer);
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return MMAL_SUCCESS;
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}
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MMAL_STATUS_T mmal_event_forward(MMAL_BUFFER_HEADER_T *event, MMAL_PORT_T *port)
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{
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MMAL_BUFFER_HEADER_T *buffer;
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MMAL_STATUS_T status;
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if(!port || port->type != MMAL_PORT_TYPE_OUTPUT)
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{
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LOG_ERROR("invalid port");
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return MMAL_EINVAL;
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}
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status = mmal_port_event_get(port->component->control, &buffer, event->cmd);
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if (status != MMAL_SUCCESS)
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{
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LOG_ERROR("event not available for port %s %p, result %d", port->name, port, status);
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return status;
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}
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if (buffer->alloc_size < event->length)
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{
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LOG_ERROR("event buffer too small (%i/%i)", buffer->alloc_size, event->length);
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mmal_buffer_header_release(buffer);
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return MMAL_ENOSPC;
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}
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memcpy(buffer->data, event->data, event->length);
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buffer->length = event->length;
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buffer->offset = event->offset;
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buffer->flags = event->flags;
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buffer->pts = event->pts;
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mmal_port_event_send(port->component->control, buffer);
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return MMAL_SUCCESS;
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}
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