vod_status_t
hds_muxer_process_frames(hds_muxer_state_t* state)
{
u_char* read_buffer;
uint32_t read_size;
vod_status_t rc;
bool_t wrote_data = FALSE;
bool_t frame_done;
for (;;)
{
// read some data from the frame
rc = state->frames_source->read(state->frames_source_context, &read_buffer, &read_size, &frame_done);
if (rc != VOD_OK)
{
if (rc != VOD_AGAIN)
{
return rc;
}
if (!wrote_data && !state->first_time)
{
vod_log_error(VOD_LOG_ERR, state->request_context->log, 0,
"hds_muxer_process_frames: no data was handled, probably a truncated file");
return VOD_BAD_DATA;
}
state->first_time = FALSE;
return VOD_AGAIN;
}
wrote_data = TRUE;
// write the frame
rc = write_buffer_write(&state->write_buffer_state, read_buffer, read_size);
if (rc != VOD_OK)
{
vod_log_debug1(VOD_LOG_DEBUG_LEVEL, state->request_context->log, 0,
"hds_muxer_process_frames: write_buffer_write failed %i", rc);
return rc;
}
// if not done, ask the cache for more data
if (!frame_done)
{
continue;
}
// end the frame and start a new one
rc = hds_muxer_end_frame(state);
if (rc != VOD_OK)
{
vod_log_debug1(VOD_LOG_DEBUG_LEVEL, state->request_context->log, 0,
"hds_muxer_process_frames: write_buffer_write failed %i", rc);
return rc;
}
rc = hds_muxer_start_frame(state);
if (rc != VOD_OK)
{
if (rc == VOD_NOT_FOUND)
{
break; // done
}
vod_log_debug1(VOD_LOG_DEBUG_LEVEL, state->request_context->log, 0,
"hds_muxer_process_frames: hds_muxer_start_frame failed %i", rc);
return rc;
}
}
// flush the buffer
rc = write_buffer_flush(&state->write_buffer_state, FALSE);
if (rc != VOD_OK)
{
vod_log_debug1(VOD_LOG_DEBUG_LEVEL, state->request_context->log, 0,
"hds_muxer_process_frames: write_buffer_flush failed %i", rc);
return rc;
}
return VOD_OK;
}
vod_status_t
hds_muxer_process_frames(hds_muxer_state_t* state, uint64_t* required_offset)
{
u_char* read_buffer;
uint32_t read_size;
uint32_t write_size;
uint64_t offset;
vod_status_t rc;
bool_t first_time = (state->cur_frame == NULL);
bool_t wrote_data = FALSE;
for (;;)
{
// start a new frame if we don't have a frame
if (state->cur_frame == NULL)
{
rc = hds_muxer_start_frame(state);
if (rc != VOD_OK)
{
vod_log_debug1(VOD_LOG_DEBUG_LEVEL, state->request_context->log, 0,
"hds_muxer_process_frames: hds_muxer_start_frame failed %i", rc);
return rc;
}
if (state->cur_frame == NULL)
{
break; // done
}
}
// read some data from the frame
offset = state->cur_frame_offset + state->cur_frame_pos;
if (!read_cache_get_from_cache(state->read_cache_state, state->cache_slot_id, offset, &read_buffer, &read_size))
{
if (!wrote_data && !first_time)
{
vod_log_error(VOD_LOG_ERR, state->request_context->log, 0,
"hds_muxer_process_frames: no data was handled, probably a truncated file");
return VOD_BAD_DATA;
}
*required_offset = offset;
return VOD_AGAIN;
}
wrote_data = TRUE;
// write the frame
write_size = MIN(state->cur_frame->size - state->cur_frame_pos, read_size);
rc = write_buffer_write(&state->write_buffer_state, read_buffer, write_size);
if (rc != VOD_OK)
{
vod_log_debug1(VOD_LOG_DEBUG_LEVEL, state->request_context->log, 0,
"hds_muxer_process_frames: write_buffer_write failed %i", rc);
return rc;
}
state->cur_frame_pos += write_size;
// flush the frame if we finished writing it
if (state->cur_frame_pos >= state->cur_frame->size)
{
rc = hds_muxer_end_frame(state);
if (rc != VOD_OK)
{
vod_log_debug1(VOD_LOG_DEBUG_LEVEL, state->request_context->log, 0,
"hds_muxer_process_frames: write_buffer_write failed %i", rc);
return rc;
}
state->cur_frame = NULL;
}
}
// flush the buffer
rc = write_buffer_flush(&state->write_buffer_state, FALSE);
if (rc != VOD_OK)
{
vod_log_debug1(VOD_LOG_DEBUG_LEVEL, state->request_context->log, 0,
"hds_muxer_process_frames: write_buffer_flush failed %i", rc);
return rc;
}
return VOD_OK;
}
