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138 lines
4.6 KiB
138 lines
4.6 KiB
/* |
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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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