static void CloseDecoder(decoder_t *dec)
{
decoder_sys_t *sys = dec->p_sys;
MMAL_BUFFER_HEADER_T *buffer;
if (!sys)
return;
if (sys->component && sys->component->control->is_enabled)
mmal_port_disable(sys->component->control);
if (sys->input && sys->input->is_enabled)
mmal_port_disable(sys->input);
if (sys->output && sys->output->is_enabled)
mmal_port_disable(sys->output);
if (sys->component && sys->component->is_enabled)
mmal_component_disable(sys->component);
if (sys->input_pool)
mmal_pool_destroy(sys->input_pool);
if (sys->output_format)
mmal_format_free(sys->output_format);
/* Free pictures which are decoded but have not yet been sent
* out to the core */
while ((buffer = mmal_queue_get(sys->decoded_pictures))) {
picture_t *pic = (picture_t *)buffer->user_data;
picture_Release(pic);
if (sys->output_pool) {
buffer->user_data = NULL;
buffer->alloc_size = 0;
buffer->data = NULL;
mmal_buffer_header_release(buffer);
}
}
if (sys->decoded_pictures)
mmal_queue_destroy(sys->decoded_pictures);
if (sys->output_pool)
mmal_pool_destroy(sys->output_pool);
if (sys->component)
mmal_component_release(sys->component);
vlc_mutex_destroy(&sys->mutex);
vlc_sem_destroy(&sys->sem);
free(sys);
bcm_host_deinit();
}
CMMALVideo::~CMMALVideo()
{
if (g_advancedSettings.CanLogComponent(LOGVIDEO))
CLog::Log(LOGDEBUG, "%s::%s %p", CLASSNAME, __func__, this);
assert(m_finished);
Reset();
pthread_mutex_destroy(&m_output_mutex);
if (m_deint && m_deint->control && m_deint->control->is_enabled)
mmal_port_disable(m_deint->control);
if (m_dec && m_dec->control && m_dec->control->is_enabled)
mmal_port_disable(m_dec->control);
if (m_dec_input && m_dec_input->is_enabled)
mmal_port_disable(m_dec_input);
m_dec_input = NULL;
if (m_dec_output && m_dec_output->is_enabled)
mmal_port_disable(m_dec_output);
m_dec_output = NULL;
if (m_deint_connection)
mmal_connection_destroy(m_deint_connection);
m_deint_connection = NULL;
if (m_deint && m_deint->is_enabled)
mmal_component_disable(m_deint);
if (m_dec && m_dec->is_enabled)
mmal_component_disable(m_dec);
if (m_dec_input_pool)
mmal_pool_destroy(m_dec_input_pool);
m_dec_input_pool = NULL;
if (m_dec_output_pool)
mmal_pool_destroy(m_dec_output_pool);
m_dec_output_pool = NULL;
if (m_deint)
mmal_component_destroy(m_deint);
m_deint = NULL;
if (m_dec)
mmal_component_destroy(m_dec);
m_dec = NULL;
mmal_format_free(m_es_format);
m_es_format = NULL;
}
static void ffmmal_poolref_unref(FFPoolRef *ref)
{
if (ref && avpriv_atomic_int_add_and_fetch(&ref->refcount, -1) == 0) {
mmal_pool_destroy(ref->pool);
av_free(ref);
}
}
static MMAL_STATUS_T mmal_connection_destroy_internal(MMAL_CONNECTION_T *connection)
{
MMAL_STATUS_T status;
if (connection->is_enabled)
{
status = mmal_connection_disable(connection);
if (status != MMAL_SUCCESS)
return status;
}
/* Special case for tunnelling */
if (connection->flags & MMAL_CONNECTION_FLAG_TUNNELLING)
{
status = mmal_port_disconnect(connection->out);
if (status != MMAL_SUCCESS)
LOG_ERROR("connection %s could not be cleared", connection->name);
}
/* Cleanup resources */
if (connection->pool)
mmal_pool_destroy(connection->pool);
if (connection->queue)
mmal_queue_destroy(connection->queue);
vcos_free(connection);
return MMAL_SUCCESS;
}
/* Destroy SVP instance. svp may be NULL. */
void svp_destroy(SVP_T *svp)
{
if (svp)
{
MMAL_COMPONENT_T *components[] = { svp->reader, svp->video_decode, svp->camera };
MMAL_COMPONENT_T **comp;
/* Stop thread, disable connection and components */
svp_stop(svp);
for (comp = components; comp < components + vcos_countof(components); comp++)
{
mmal_component_disable(*comp);
}
/* Destroy connection + components */
if (svp->connection)
{
mmal_connection_destroy(svp->connection);
}
for (comp = components; comp < components + vcos_countof(components); comp++)
{
mmal_component_destroy(*comp);
}
/* Free remaining resources */
if (svp->out_pool)
{
mmal_pool_destroy(svp->out_pool);
}
if (svp->queue)
{
mmal_queue_destroy(svp->queue);
}
if (svp->created & SVP_CREATED_WD_TIMER)
{
vcos_timer_delete(&svp->wd_timer);
}
if (svp->created & SVP_CREATED_TIMER)
{
vcos_timer_delete(&svp->timer);
}
if (svp->created & SVP_CREATED_MUTEX)
{
vcos_mutex_delete(&svp->mutex);
}
if (svp->created & SVP_CREATED_SEM)
{
vcos_semaphore_delete(&svp->sema);
}
vcos_free(svp);
}
}
/** Disable processing on a port */
MMAL_STATUS_T mmal_port_disable(MMAL_PORT_T *port)
{
MMAL_POOL_T* pool = NULL;
MMAL_STATUS_T status;
if (!port || !port->priv)
return MMAL_EINVAL;
LOG_TRACE("%s(%i:%i) port %p", port->component->name,
(int)port->type, (int)port->index, port);
if (!port->priv->pf_disable)
return MMAL_ENOSYS;
LOCK_PORT(port);
status = mmal_port_disable_locked(port);
if (status == MMAL_SUCCESS)
pool = port->priv->core->pool_for_connection;
port->priv->core->pool_for_connection = NULL;
UNLOCK_PORT(port);
if (status == MMAL_SUCCESS && pool)
mmal_pool_destroy(pool);
return status;
}
static void ffmmal_poolref_unref(FFPoolRef *ref)
{
if (ref &&
atomic_fetch_add_explicit(&ref->refcount, -1, memory_order_acq_rel) == 1) {
mmal_pool_destroy(ref->pool);
av_free(ref);
}
}
/** Disconnect a connected port. */
MMAL_STATUS_T mmal_port_disconnect(MMAL_PORT_T *port)
{
MMAL_PORT_PRIVATE_CORE_T* core;
MMAL_PORT_T* other_port;
MMAL_STATUS_T status = MMAL_SUCCESS;
if (!port || !port->priv)
{
LOG_ERROR("invalid port");
return MMAL_EINVAL;
}
LOG_TRACE("%s(%p)", port->name, port);
LOCK_PORT(port);
core = port->priv->core;
if (!core->connected_port)
{
UNLOCK_PORT(port);
LOG_DEBUG("%s(%p) is not connected", port->name, port);
return MMAL_ENOTCONN;
}
other_port = core->connected_port;
if (port->is_enabled)
{
status = mmal_port_disable_locked(port);
if (status != MMAL_SUCCESS)
{
LOG_ERROR("could not disable %s(%p) (%i)", port->name, port, status);
goto finish;
}
if (port->priv->core->pool_for_connection)
mmal_pool_destroy(port->priv->core->pool_for_connection);
port->priv->core->pool_for_connection = NULL;
}
if (!core->core_owns_connection)
{
status = port->priv->pf_connect(port, NULL);
if (status != MMAL_SUCCESS)
{
LOG_ERROR("disconnection of %s(%p) failed (%i)", port->name, port, status);
goto finish;
}
}
core->connected_port = NULL;
other_port->priv->core->connected_port = NULL;
finish:
UNLOCK_PORT(port);
return status;
}
static MMAL_STATUS_T mmal_port_connection_disable(MMAL_PORT_T *port, MMAL_PORT_T *connected_port)
{
MMAL_POOL_T *pool = port->priv->core->pool_for_connection ?
port->priv->core->pool_for_connection : connected_port->priv->core->pool_for_connection;
mmal_pool_destroy(pool);
port->priv->core->pool_for_connection =
connected_port->priv->core->pool_for_connection = NULL;
return MMAL_SUCCESS;
}
static void Close(vlc_object_t *object)
{
vout_display_t *vd = (vout_display_t *)object;
vout_display_sys_t *sys = vd->sys;
char response[20]; /* answer is hvs_update_fields=%1d */
unsigned i;
vc_tv_unregister_callback_full(tvservice_cb, vd);
if (sys->dmx_handle)
close_dmx(vd);
if (sys->component && sys->component->control->is_enabled)
mmal_port_disable(sys->component->control);
if (sys->input && sys->input->is_enabled)
mmal_port_disable(sys->input);
if (sys->component && sys->component->is_enabled)
mmal_component_disable(sys->component);
if (sys->pool)
mmal_pool_destroy(sys->pool);
if (sys->component)
mmal_component_release(sys->component);
if (sys->picture_pool)
picture_pool_Release(sys->picture_pool);
else
for (i = 0; i < sys->num_buffers; ++i)
if (sys->pictures[i])
picture_Release(sys->pictures[i]);
vlc_mutex_destroy(&sys->buffer_mutex);
vlc_cond_destroy(&sys->buffer_cond);
vlc_mutex_destroy(&sys->manage_mutex);
if (sys->native_interlaced) {
if (vc_gencmd(response, sizeof(response), "hvs_update_fields 0") < 0 ||
response[18] != '0')
msg_Warn(vd, "Could not reset hvs field mode");
}
free(sys->pictures);
free(sys);
bcm_host_deinit();
}
/** Destroy a pool of MMAL_BUFFER_HEADER_T */
void mmal_port_pool_destroy(MMAL_PORT_T *port, MMAL_POOL_T *pool)
{
if (!port || !port->priv || !pool)
return;
LOG_TRACE("%s(%i:%i) port %p, pool %p", port->component->name,
(int)port->type, (int)port->index, port, pool);
if (!vcos_verify(!port->is_enabled))
{
LOG_ERROR("port %p, pool %p destroyed while port enabled", port, pool);
mmal_port_disable(port);
}
mmal_pool_destroy(pool);
}
static av_cold int ffmmal_close_decoder(AVCodecContext *avctx)
{
MMALDecodeContext *ctx = avctx->priv_data;
if (ctx->decoder)
ffmmal_stop_decoder(avctx);
mmal_component_destroy(ctx->decoder);
ctx->decoder = NULL;
mmal_queue_destroy(ctx->queue_decoded_frames);
mmal_pool_destroy(ctx->pool_in);
ffmmal_poolref_unref(ctx->pool_out);
mmal_vc_deinit();
return 0;
}
static void disable_renderer(struct gl_hwdec *hw)
{
struct priv *p = hw->priv;
if (p->renderer_enabled) {
mmal_port_disable(p->renderer->control);
mmal_port_disable(p->renderer->input[0]);
mmal_port_flush(p->renderer->control);
mmal_port_flush(p->renderer->input[0]);
mmal_component_disable(p->renderer);
}
mmal_pool_destroy(p->swpool);
p->swpool = NULL;
p->renderer_enabled = false;
}
/* Destroys the pools of buffers used by the GL renderer.
* @param state Pointer to the GL preview state.
*/
void raspitex_destroy(RASPITEX_STATE *state)
{
vcos_log_trace("%s", VCOS_FUNCTION);
if (state->preview_pool)
{
mmal_pool_destroy(state->preview_pool);
state->preview_pool = NULL;
}
if (state->preview_queue)
{
mmal_queue_destroy(state->preview_queue);
state->preview_queue = NULL;
}
if (state->ops.destroy_native_window)
state->ops.destroy_native_window(state);
if (state->ops.close)
state->ops.close(state);
vcos_semaphore_delete(&state->capture.start_sem);
vcos_semaphore_delete(&state->capture.completed_sem);
}
int main(int argc, char **argv)
{
MMAL_STATUS_T status = MMAL_EINVAL;
MMAL_COMPONENT_T *decoder = 0;
MMAL_POOL_T *pool_in = 0, *pool_out = 0;
unsigned int count;
if (argc < 2)
{
fprintf(stderr, "invalid arguments\n");
return -1;
}
#ifndef WIN32
// TODO verify that we dont really need to call bcm_host_init
bcm_host_init();
#endif
vcos_semaphore_create(&context.semaphore, "example", 1);
SOURCE_OPEN(argv[1]);
/* Create the decoder component.
* This specific component exposes 2 ports (1 input and 1 output). Like most components
* its expects the format of its input port to be set by the client in order for it to
* know what kind of data it will be fed. */
status = mmal_component_create(MMAL_COMPONENT_DEFAULT_VIDEO_DECODER, &decoder);
CHECK_STATUS(status, "failed to create decoder");
/* Set format of video decoder input port */
MMAL_ES_FORMAT_T *format_in = decoder->input[0]->format;
format_in->type = MMAL_ES_TYPE_VIDEO;
format_in->encoding = MMAL_ENCODING_H264;
format_in->es->video.width = 1280;
format_in->es->video.height = 720;
format_in->es->video.frame_rate.num = 30;
format_in->es->video.frame_rate.den = 1;
format_in->es->video.par.num = 1;
format_in->es->video.par.den = 1;
/* If the data is known to be framed then the following flag should be set:
* format_in->flags |= MMAL_ES_FORMAT_FLAG_FRAMED; */
SOURCE_READ_CODEC_CONFIG_DATA(codec_header_bytes, codec_header_bytes_size);
status = mmal_format_extradata_alloc(format_in, codec_header_bytes_size);
CHECK_STATUS(status, "failed to allocate extradata");
format_in->extradata_size = codec_header_bytes_size;
if (format_in->extradata_size)
memcpy(format_in->extradata, codec_header_bytes, format_in->extradata_size);
status = mmal_port_format_commit(decoder->input[0]);
CHECK_STATUS(status, "failed to commit format");
/* Display the output port format */
MMAL_ES_FORMAT_T *format_out = decoder->output[0]->format;
fprintf(stderr, "%s\n", decoder->output[0]->name);
fprintf(stderr, " type: %i, fourcc: %4.4s\n", format_out->type, (char *)&format_out->encoding);
fprintf(stderr, " bitrate: %i, framed: %i\n", format_out->bitrate,
!!(format_out->flags & MMAL_ES_FORMAT_FLAG_FRAMED));
fprintf(stderr, " extra data: %i, %p\n", format_out->extradata_size, format_out->extradata);
fprintf(stderr, " width: %i, height: %i, (%i,%i,%i,%i)\n",
format_out->es->video.width, format_out->es->video.height,
format_out->es->video.crop.x, format_out->es->video.crop.y,
format_out->es->video.crop.width, format_out->es->video.crop.height);
/* The format of both ports is now set so we can get their buffer requirements and create
* our buffer headers. We use the buffer pool API to create these. */
decoder->input[0]->buffer_num = decoder->input[0]->buffer_num_min;
decoder->input[0]->buffer_size = decoder->input[0]->buffer_size_min;
decoder->output[0]->buffer_num = decoder->output[0]->buffer_num_min;
decoder->output[0]->buffer_size = decoder->output[0]->buffer_size_min;
pool_in = mmal_pool_create(decoder->input[0]->buffer_num,
decoder->input[0]->buffer_size);
pool_out = mmal_pool_create(decoder->output[0]->buffer_num,
decoder->output[0]->buffer_size);
/* Create a queue to store our decoded video frames. The callback we will get when
* a frame has been decoded will put the frame into this queue. */
context.queue = mmal_queue_create();
/* Store a reference to our context in each port (will be used during callbacks) */
decoder->input[0]->userdata = (void *)&context;
decoder->output[0]->userdata = (void *)&context;
/* Enable all the input port and the output port.
* The callback specified here is the function which will be called when the buffer header
* we sent to the component has been processed. */
status = mmal_port_enable(decoder->input[0], input_callback);
CHECK_STATUS(status, "failed to enable input port");
status = mmal_port_enable(decoder->output[0], output_callback);
CHECK_STATUS(status, "failed to enable output port");
/* Component won't start processing data until it is enabled. */
status = mmal_component_enable(decoder);
CHECK_STATUS(status, "failed to enable component");
/* Start decoding */
fprintf(stderr, "start decoding\n");
/* This is the main processing loop */
for (count = 0; count < 500; count++)
{
MMAL_BUFFER_HEADER_T *buffer;
/* Wait for buffer headers to be available on either of the decoder ports */
vcos_semaphore_wait(&context.semaphore);
/* Send data to decode to the input port of the video decoder */
if ((buffer = mmal_queue_get(pool_in->queue)) != NULL)
{
SOURCE_READ_DATA_INTO_BUFFER(buffer);
if (!buffer->length)
break;
fprintf(stderr, "sending %i bytes\n", (int)buffer->length);
status = mmal_port_send_buffer(decoder->input[0], buffer);
CHECK_STATUS(status, "failed to send buffer");
}
/* Get our decoded frames */
while ((buffer = mmal_queue_get(context.queue)) != NULL)
{
/* We have a frame, do something with it (why not display it for instance?).
* Once we're done with it, we release it. It will automatically go back
* to its original pool so it can be reused for a new video frame.
*/
fprintf(stderr, "decoded frame\n");
mmal_buffer_header_release(buffer);
}
/* Send empty buffers to the output port of the decoder */
while ((buffer = mmal_queue_get(pool_out->queue)) != NULL)
{
status = mmal_port_send_buffer(decoder->output[0], buffer);
CHECK_STATUS(status, "failed to send buffer");
}
}
/* Stop decoding */
fprintf(stderr, "stop decoding\n");
/* Stop everything. Not strictly necessary since mmal_component_destroy()
* will do that anyway */
mmal_port_disable(decoder->input[0]);
mmal_port_disable(decoder->output[0]);
mmal_component_disable(decoder);
error:
/* Cleanup everything */
if (decoder)
mmal_component_destroy(decoder);
if (pool_in)
mmal_pool_destroy(pool_in);
if (pool_out)
mmal_pool_destroy(pool_out);
if (context.queue)
mmal_queue_destroy(context.queue);
SOURCE_CLOSE();
vcos_semaphore_delete(&context.semaphore);
return status == MMAL_SUCCESS ? 0 : -1;
}