static picture_t *deinterlace(filter_t *filter, picture_t *picture)
{
filter_sys_t *sys = filter->p_sys;
MMAL_BUFFER_HEADER_T *buffer;
picture_t *out_picture = NULL;
picture_t *ret = NULL;
MMAL_STATUS_T status;
unsigned i = 0;
fill_output_port(filter);
buffer = picture->p_sys->buffer;
buffer->user_data = picture;
buffer->pts = picture->date;
buffer->cmd = 0;
if (!picture->p_sys->displayed) {
vlc_mutex_lock(&sys->buffer_cond_mutex);
status = mmal_port_send_buffer(sys->input, buffer);
if (status != MMAL_SUCCESS) {
msg_Err(filter, "Failed to send buffer to input port (status=%"PRIx32" %s)",
status, mmal_status_to_string(status));
picture_Release(picture);
} else {
picture->p_sys->displayed = true;
atomic_fetch_add(&sys->input_in_transit, 1);
vlc_cond_signal(&sys->buffer_cond);
}
vlc_mutex_unlock(&sys->buffer_cond_mutex);
} else {
picture_Release(picture);
}
/*
* Send output buffers
*/
while(atomic_load(&sys->started) && i < 2) {
if (buffer = mmal_queue_timedwait(sys->filtered_pictures, 2000)) {
i++;
if (!out_picture) {
out_picture = (picture_t *)buffer->user_data;
ret = out_picture;
} else {
out_picture->p_next = (picture_t *)buffer->user_data;
out_picture = out_picture->p_next;
}
out_picture->date = buffer->pts;
} else {
msg_Dbg(filter, "Failed waiting for filtered picture");
break;
}
}
if (out_picture)
out_picture->p_next = NULL;
return ret;
}
static picture_t *decode(decoder_t *dec, block_t **pblock)
{
decoder_sys_t *sys = dec->p_sys;
block_t *block;
MMAL_BUFFER_HEADER_T *buffer;
bool need_flush = false;
uint32_t len;
uint32_t flags = 0;
MMAL_STATUS_T status;
picture_t *ret = NULL;
/*
* Configure output port if necessary
*/
if (sys->output_format) {
if (change_output_format(dec) < 0)
msg_Err(dec, "Failed to change output port format");
}
if (!pblock)
goto out;
block = *pblock;
/*
* Check whether full flush is required
*/
if (block && block->i_flags & BLOCK_FLAG_DISCONTINUITY) {
flush_decoder(dec);
block_Release(*pblock);
return NULL;
}
/*
* Send output buffers
*/
if (atomic_load(&sys->started)) {
buffer = mmal_queue_get(sys->decoded_pictures);
if (buffer) {
ret = (picture_t *)buffer->user_data;
ret->date = buffer->pts;
ret->b_progressive = sys->b_progressive;
ret->b_top_field_first = sys->b_top_field_first;
if (sys->output_pool) {
buffer->data = NULL;
mmal_buffer_header_reset(buffer);
mmal_buffer_header_release(buffer);
}
}
fill_output_port(dec);
}
if (ret)
goto out;
/*
* Process input
*/
if (!block)
goto out;
*pblock = NULL;
if (block->i_flags & BLOCK_FLAG_CORRUPTED)
flags |= MMAL_BUFFER_HEADER_FLAG_CORRUPTED;
vlc_mutex_lock(&sys->mutex);
while (block->i_buffer > 0) {
buffer = mmal_queue_timedwait(sys->input_pool->queue, 2);
if (!buffer) {
msg_Err(dec, "Failed to retrieve buffer header for input data");
need_flush = true;
break;
}
mmal_buffer_header_reset(buffer);
buffer->cmd = 0;
buffer->pts = block->i_pts != 0 ? block->i_pts : block->i_dts;
buffer->dts = block->i_dts;
buffer->alloc_size = sys->input->buffer_size;
len = block->i_buffer;
if (len > buffer->alloc_size)
len = buffer->alloc_size;
buffer->data = block->p_buffer;
block->p_buffer += len;
block->i_buffer -= len;
buffer->length = len;
if (block->i_buffer == 0)
buffer->user_data = block;
buffer->flags = flags;
status = mmal_port_send_buffer(sys->input, buffer);
if (status != MMAL_SUCCESS) {
msg_Err(dec, "Failed to send buffer to input port (status=%"PRIx32" %s)",
status, mmal_status_to_string(status));
break;
}
atomic_fetch_add(&sys->input_in_transit, 1);
}
vlc_mutex_unlock(&sys->mutex);
out:
if (need_flush)
flush_decoder(dec);
return ret;
}
