static vod_status_t
audio_filter_update_track(audio_filter_state_t* state)
{
media_track_t* output = state->output;
input_frame_t* cur_frame;
input_frame_t* last_frame;
uint32_t old_timescale;
vod_status_t rc;
u_char* new_extra_data;
bool_t has_frames;
if (state->sink.encoder->time_base.num != 1)
{
vod_log_error(VOD_LOG_ERR, state->request_context->log, 0,
"audio_filter_update_track: unexpected encoder time base %d/%d",
state->sink.encoder->time_base.num, state->sink.encoder->time_base.den);
return VOD_UNEXPECTED;
}
// decrement the old frame count and size
state->sequence->total_frame_count -= output->frame_count;
state->sequence->total_frame_size -= output->total_frames_size;
output->total_frames_size = 0;
output->total_frames_duration = 0;
// update frames
output->frame_count = state->frames_array.nelts;
output->frames.first_frame = state->frames_array.elts;
output->frames.last_frame = output->frames.first_frame + output->frame_count;
output->frames.next = NULL;
// check whether there are any frames with duration
has_frames = FALSE;
// Note: always a single part here
last_frame = output->frames.last_frame;
for (cur_frame = output->frames.first_frame; cur_frame < last_frame; cur_frame++)
{
if (cur_frame->duration != 0)
{
has_frames = TRUE;
break;
}
}
if (!has_frames)
{
output->frames.first_frame = NULL;
output->frames.last_frame = NULL;
output->frame_count = 0;
return VOD_OK;
}
// update the frames source to memory
rc = frames_source_memory_init(state->request_context, &output->frames.frames_source_context);
if (rc != VOD_OK)
{
return rc;
}
output->frames.frames_source = &frames_source_memory;
// calculate the total frames size and duration
output->media_info.min_frame_duration = 0;
for (cur_frame = output->frames.first_frame; cur_frame < last_frame; cur_frame++)
{
output->total_frames_size += cur_frame->size;
output->total_frames_duration += cur_frame->duration;
if (cur_frame->duration != 0 &&
(output->media_info.min_frame_duration == 0 || cur_frame->duration < output->media_info.min_frame_duration))
{
output->media_info.min_frame_duration = cur_frame->duration;
}
}
// update media info
old_timescale = output->media_info.timescale;
output->media_info.timescale = state->sink.encoder->time_base.den;
output->media_info.duration = rescale_time(output->media_info.duration, old_timescale, output->media_info.timescale);
output->media_info.bitrate = state->sink.encoder->bit_rate;
output->media_info.u.audio.object_type_id = 0x40; // ffmpeg always writes 0x40 (ff_mp4_obj_type)
output->media_info.u.audio.channels = state->sink.encoder->channels;
output->media_info.u.audio.bits_per_sample = ENCODER_BITS_PER_SAMPLE;
output->media_info.u.audio.packet_size = 0; // ffmpeg always writes 0 (mov_write_audio_tag)
output->media_info.u.audio.sample_rate = state->sink.encoder->sample_rate;
output->key_frame_count = 0;
output->first_frame_time_offset = rescale_time(output->first_frame_time_offset, old_timescale, output->media_info.timescale);
new_extra_data = vod_alloc(state->request_context->pool, state->sink.encoder->extradata_size);
if (new_extra_data == NULL)
{
vod_log_debug0(VOD_LOG_DEBUG_LEVEL, state->request_context->log, 0,
"audio_filter_update_track: vod_alloc failed");
return VOD_ALLOC_FAILED;
}
vod_memcpy(new_extra_data, state->sink.encoder->extradata, state->sink.encoder->extradata_size);
output->media_info.extra_data.data = new_extra_data;
output->media_info.extra_data.len = state->sink.encoder->extradata_size;
if (output->media_info.codec_name.data != NULL)
{
rc = codec_config_get_audio_codec_name(state->request_context, &output->media_info);
if (rc != VOD_OK)
{
return rc;
}
}
// add the new frame count and size
state->sequence->total_frame_count += output->frame_count;
state->sequence->total_frame_size += output->total_frames_size;
// TODO: update raw_atoms
return VOD_OK;
}
vod_status_t
audio_filter_update_stream_metadata(audio_filter_state_t* state)
{
mpeg_stream_metadata_t* output = state->output;
input_frame_t* cur_frame;
input_frame_t* last_frame;
uint32_t old_timescale;
vod_status_t rc;
u_char* new_extra_data;
if (state->encoder->time_base.num != 1)
{
vod_log_error(VOD_LOG_ERR, state->request_context->log, 0,
"audio_filter_update_stream_metadata: unexpected encoder time base num %d", state->encoder->time_base.num);
return VOD_UNEXPECTED;
}
output->frames = state->frames_array.elts;
output->frame_count = state->frames_array.nelts;
output->frame_offsets = state->frame_offsets_array.elts;
output->total_frames_size = 0;
output->total_frames_duration = 0;
output->media_info.min_frame_duration = 0;
output->media_info.max_frame_duration = 0;
last_frame = output->frames + output->frame_count;
for (cur_frame = output->frames; cur_frame < last_frame; cur_frame++)
{
output->total_frames_size += cur_frame->size;
output->total_frames_duration += cur_frame->duration;
if (cur_frame->duration != 0 &&
(output->media_info.min_frame_duration == 0 || cur_frame->duration < output->media_info.min_frame_duration))
{
output->media_info.min_frame_duration = cur_frame->duration;
}
if (cur_frame->duration > output->media_info.max_frame_duration)
{
output->media_info.max_frame_duration = cur_frame->duration;
}
}
if (output->media_info.min_frame_duration == 0)
{
vod_log_error(VOD_LOG_ERR, state->request_context->log, 0,
"audio_filter_update_stream_metadata: min frame duration is zero");
return VOD_UNEXPECTED;
}
old_timescale = output->media_info.timescale;
output->media_info.timescale = state->encoder->time_base.den;
output->media_info.duration = rescale_time(output->media_info.duration, old_timescale, output->media_info.timescale);
output->media_info.bitrate = state->encoder->bit_rate;
output->media_info.speed_nom = 1;
output->media_info.speed_denom = 1;
output->media_info.u.audio.object_type_id = 0x40; // ffmpeg always writes 0x40 (ff_mp4_obj_type)
output->media_info.u.audio.channels = state->encoder->channels;
output->media_info.u.audio.bits_per_sample = ENCODER_BITS_PER_SAMPLE;
output->media_info.u.audio.packet_size = 0; // ffmpeg always writes 0 (mov_write_audio_tag)
output->media_info.u.audio.sample_rate = state->encoder->sample_rate;
output->key_frame_count = 0;
output->first_frame_time_offset = rescale_time(output->first_frame_time_offset, old_timescale, output->media_info.timescale);
new_extra_data = vod_alloc(state->request_context->pool, state->encoder->extradata_size);
if (new_extra_data == NULL)
{
vod_log_debug0(VOD_LOG_DEBUG_LEVEL, state->request_context->log, 0,
"audio_filter_update_stream_metadata: vod_alloc failed");
return VOD_ALLOC_FAILED;
}
vod_memcpy(new_extra_data, state->encoder->extradata, state->encoder->extradata_size);
output->media_info.extra_data = new_extra_data;
output->media_info.extra_data_size = state->encoder->extradata_size;
if (output->media_info.codec_name.data != NULL)
{
rc = codec_config_get_audio_codec_name(state->request_context, &output->media_info);
if (rc != VOD_OK)
{
return rc;
}
}
output->frames_file_index = INVALID_FILE_INDEX; // the frames are now in memory
// TODO: update raw_atoms
return VOD_OK;
}
