decoders.cpp

这是著名的TCPMP播放器在WINDWOWS,和WINCE下编译通过的源程序.笔者对其中的LIBMAD库做了针对ARM MPU的优化. 并增加了词幕功能.

	return (bool)feof(file_);
}

::FLAC__StreamDecoderWriteStatus SeekableStreamDecoder::write_callback(const ::FLAC__Frame *frame, const FLAC__int32 * const buffer[])
{
	(void)buffer;

	return common_write_callback_(frame);
}

void SeekableStreamDecoder::metadata_callback(const ::FLAC__StreamMetadata *metadata)
{
	common_metadata_callback_(metadata);
}

void SeekableStreamDecoder::error_callback(::FLAC__StreamDecoderErrorStatus status)
{
	common_error_callback_(status);
}

bool SeekableStreamDecoder::die(const char *msg) const
{
	State state = get_state();

	if(msg)
		printf("FAILED, %s", msg);
	else
		printf("FAILED");

	printf(", state = %u (%s)\n", (unsigned)((::FLAC__SeekableStreamDecoderState)state), state.as_cstring());
	if(state == ::FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR) {
		FLAC::Decoder::Stream::State state_ = get_stream_decoder_state();
		printf("      stream decoder state = %u (%s)\n", (unsigned)((::FLAC__StreamDecoderState)state_), state_.as_cstring());
	}

	return false;
}

bool SeekableStreamDecoder::test_respond()
{
	if(!set_md5_checking(true)) {
		printf("FAILED at set_md5_checking(), returned false\n");
		return false;
	}

	printf("testing init()... ");
	if(init() != ::FLAC__SEEKABLE_STREAM_DECODER_OK)
		return die();
	printf("OK\n");

	current_metadata_number_ = 0;

	if(::fseek(file_, 0, SEEK_SET) < 0) {
		printf("FAILED rewinding input, errno = %d\n", errno);
		return false;
	}

	printf("testing process_until_end_of_stream()... ");
	if(!process_until_end_of_stream()) {
		State state = get_state();
		printf("FAILED, returned false, state = %u (%s)\n", (unsigned)((::FLAC__SeekableStreamDecoderState)state), state.as_cstring());
		return false;
	}
	printf("OK\n");

	printf("testing finish()... ");
	finish();
	printf("OK\n");

	return true;
}

static bool test_seekable_stream_decoder()
{
	SeekableStreamDecoder *decoder;

	printf("\n+++ libFLAC++ unit test: FLAC::Decoder::SeekableStream\n\n");

	//
	// test new -> delete
	//
	printf("allocating decoder instance... ");
	decoder = new SeekableStreamDecoder();
	if(0 == decoder) {
		printf("FAILED, new returned NULL\n");
		return false;
	}
	printf("OK\n");

	printf("testing is_valid()... ");
	if(!decoder->is_valid()) {
		printf("FAILED, returned false\n");
		return false;
	}
	printf("OK\n");

	printf("freeing decoder instance... ");
	delete decoder;
	printf("OK\n");

	//
	// test new -> init -> delete
	//
	printf("allocating decoder instance... ");
	decoder = new SeekableStreamDecoder();
	if(0 == decoder) {
		printf("FAILED, new returned NULL\n");
		return false;
	}
	printf("OK\n");

	printf("testing is_valid()... ");
	if(!decoder->is_valid()) {
		printf("FAILED, returned false\n");
		return false;
	}
	printf("OK\n");

	printf("testing init()... ");
	if(decoder->init() != ::FLAC__SEEKABLE_STREAM_DECODER_OK)
		return decoder->die();
	printf("OK\n");

	printf("freeing decoder instance... ");
	delete decoder;
	printf("OK\n");

	//
	// test normal usage
	//
	num_expected_ = 0;
	expected_metadata_sequence_[num_expected_++] = &streaminfo_;

	printf("allocating decoder instance... ");
	decoder = new SeekableStreamDecoder();
	if(0 == decoder) {
		printf("FAILED, new returned NULL\n");
		return false;
	}
	printf("OK\n");

	printf("testing is_valid()... ");
	if(!decoder->is_valid()) {
		printf("FAILED, returned false\n");
		return false;
	}
	printf("OK\n");

	printf("testing set_md5_checking()... ");
	if(!decoder->set_md5_checking(true)) {
		printf("FAILED, returned false\n");
		return false;
	}
	printf("OK\n");

	printf("testing init()... ");
	if(decoder->init() != ::FLAC__SEEKABLE_STREAM_DECODER_OK)
		return decoder->die();
	printf("OK\n");

	printf("testing get_state()... ");
	FLAC::Decoder::SeekableStream::State state = decoder->get_state();
	printf("returned state = %u (%s)... OK\n", (unsigned)((::FLAC__SeekableStreamDecoderState)state), state.as_cstring());

	printf("testing get_stream_decoder_state()... ");
	FLAC::Decoder::Stream::State state_ = decoder->get_stream_decoder_state();
	printf("returned state = %u (%s)... OK\n", (unsigned)((::FLAC__StreamDecoderState)state_), state_.as_cstring());

	decoder->current_metadata_number_ = 0;
	decoder->ignore_errors_ = false;
	decoder->error_occurred_ = false;

	printf("opening FLAC file... ");
	decoder->file_ = ::fopen(flacfilename_, "rb");
	if(0 == decoder->file_) {
		printf("ERROR\n");
		return false;
	}
	printf("OK\n");

	printf("testing get_md5_checking()... ");
	if(!decoder->get_md5_checking()) {
		printf("FAILED, returned false, expected true\n");
		return false;
	}
	printf("OK\n");

	printf("testing process_until_end_of_metadata()... ");
	if(!decoder->process_until_end_of_metadata())
		return decoder->die("returned false");
	printf("OK\n");

	printf("testing process_single()... ");
	if(!decoder->process_single())
		return decoder->die("returned false");
	printf("OK\n");

	printf("testing skip_single_frame()... ");
	if(!decoder->skip_single_frame())
		return decoder->die("returned false");
	printf("OK\n");

	printf("testing flush()... ");
	if(!decoder->flush())
		return decoder->die("returned false");
	printf("OK\n");

	decoder->ignore_errors_ = true;
	printf("testing process_single()... ");
	if(!decoder->process_single())
		return decoder->die("returned false");
	printf("OK\n");
	decoder->ignore_errors_ = false;

	printf("testing seek_absolute()... ");
	if(!decoder->seek_absolute(0))
		return decoder->die("returned false");
	printf("OK\n");

	printf("testing process_until_end_of_stream()... ");
	if(!decoder->process_until_end_of_stream())
		return decoder->die("returned false");
	printf("OK\n");

	printf("testing get_channels()... ");
	{
		unsigned channels = decoder->get_channels();
		if(channels != streaminfo_.data.stream_info.channels) {
			printf("FAILED, returned %u, expected %u\n", channels, streaminfo_.data.stream_info.channels);
			return false;
		}
	}
	printf("OK\n");

	printf("testing get_bits_per_sample()... ");
	{
		unsigned bits_per_sample = decoder->get_bits_per_sample();
		if(bits_per_sample != streaminfo_.data.stream_info.bits_per_sample) {
			printf("FAILED, returned %u, expected %u\n", bits_per_sample, streaminfo_.data.stream_info.bits_per_sample);
			return false;
		}
	}
	printf("OK\n");

	printf("testing get_sample_rate()... ");
	{
		unsigned sample_rate = decoder->get_sample_rate();
		if(sample_rate != streaminfo_.data.stream_info.sample_rate) {
			printf("FAILED, returned %u, expected %u\n", sample_rate, streaminfo_.data.stream_info.sample_rate);
			return false;
		}
	}
	printf("OK\n");

	printf("testing get_blocksize()... ");
	{
		unsigned blocksize = decoder->get_blocksize();
		/* value could be anything since we're at the last block, so accept any answer */
		printf("returned %u... OK\n", blocksize);
	}

	printf("testing get_channel_assignment()... ");
	{
		::FLAC__ChannelAssignment ca = decoder->get_channel_assignment();
		printf("returned %u (%s)... OK\n", (unsigned)ca, ::FLAC__ChannelAssignmentString[ca]);
	}

	printf("testing reset()... ");
	if(!decoder->reset())
		return decoder->die("returned false");
	printf("OK\n");

	decoder->current_metadata_number_ = 0;

	printf("rewinding input... ");
	if(::fseek(decoder->file_, 0, SEEK_SET) < 0) {
		printf("FAILED, errno = %d\n", errno);
		return false;
	}
	printf("OK\n");

	printf("testing process_until_end_of_stream()... ");
	if(!decoder->process_until_end_of_stream())
		return decoder->die("returned false");
	printf("OK\n");

	printf("testing finish()... ");
	decoder->finish();
	printf("OK\n");

	/*
	 * respond all
	 */

	printf("testing set_metadata_respond_all()... ");
	if(!decoder->set_metadata_respond_all()) {
		printf("FAILED, returned false\n");
		return false;
	}
	printf("OK\n");

	num_expected_ = 0;
	expected_metadata_sequence_[num_expected_++] = &streaminfo_;
	expected_metadata_sequence_[num_expected_++] = &padding_;
	expected_metadata_sequence_[num_expected_++] = &seektable_;
	expected_metadata_sequence_[num_expected_++] = &application1_;
	expected_metadata_sequence_[num_expected_++] = &application2_;
	expected_metadata_sequence_[num_expected_++] = &vorbiscomment_;
	expected_metadata_sequence_[num_expected_++] = &cuesheet_;
	expected_metadata_sequence_[num_expected_++] = &unknown_;

	if(!decoder->test_respond())
		return false;

	/*
	 * ignore all
	 */

	printf("testing set_metadata_ignore_all()... ");
	if(!decoder->set_metadata_ignore_all()) {
		printf("FAILED, returned false\n");
		return false;
	}
	printf("OK\n");

	num_expected_ = 0;

	if(!decoder->test_respond())
		return false;

	/*
	 * respond all, ignore VORBIS_COMMENT
	 */

	printf("testing set_metadata_respond_all()... ");
	if(!decoder->set_metadata_respond_all()) {
		printf("FAILED, returned false\n");
		return false;
	}
	printf("OK\n");

	printf("testing set_metadata_ignore(VORBIS_COMMENT)... ");
	if(!decoder->set_metadata_ignore(FLAC__METADATA_TYPE_VORBIS_COMMENT)) {
		printf("FAILED, returned false\n");
		return false;
	}
	printf("OK\n");

	num_expected_ = 0;
	expected_metadata_sequence_[num_expected_++] = &streaminfo_;
	expected_metadata_sequence_[num_expected_++] = &padding_;
	expected_metadata_sequence_[num_expected_++] = &seektable_;
	expected_metadata_sequence_[num_expected_++] = &application1_;
	expected_metadata_sequence_[num_expected_++] = &application2_;
	expected_metadata_sequence_[num_expected_++] = &cuesheet_;
	expected_metadata_sequence_[num_expected_++] = &unknown_;

	if(!decoder->test_respond())
		return false;

	/*
	 * respond all, ignore APPLICATION
	 */

	printf("testing set_metadata_respond_all()... ");
	if(!decoder->set_metadata_respond_all()) {
		printf("FAILED, returned false\n");
		return false;
	}
	printf("OK\n");

	printf("testing set_metadata_ignore(APPLICATION)... ");
	if(!decoder->set_metadata_ignore(FLAC__METADATA_TYPE_APPLICATION)) {
		printf("FAILED, returned false\n");
		return false;
	}
	printf("OK\n");

	num_expected_ = 0;
	expected_metadata_sequence_[num_expected_++] = &streaminfo_;
	expected_metadata_sequence_[num_expected_++] = &padding_;
	expected_metadata_sequence_[num_expected_++] = &seektable_;
	expected_metadata_sequence_[num_expected_++] = &vorbiscomment_;
	expected_metadata_sequence_[num_expected_++] = &cuesheet_;
	expected_metadata_sequence_[num_expected_++] = &unknown_;

	if(!decoder->test_respond())
		return false;

	/*
	 * respond all, ignore APPLICATION id of app#1
	 */

	printf("testing set_metadata_respond_all()... ");
	if(!decoder->set_metadata_respond_all()) {
		printf("FAILED, returned false\n");
		return false;
	}
	printf("OK\n");

	printf("testing set_metadata_ignore_application(of app block #1)... ");
	if(!decoder->set_metadata_ignore_application(application1_.data.application.id)) {
		printf("FAILED, returned false\n");
		return false;
	}
	printf("OK\n");

	num_expected_ = 0;
	expected_metadata_sequence_[num_expected_++] = &streaminfo_;
	expected_metadata_sequence_[num_expected_++] = &padding_;
	expected_metadata_sequence_[num_expected_++] = &seektable_;
	expected_metadata_sequence_[num_expected_++] = &application2_;
	expected_metadata_sequence_[num_expected_++] = &vorbiscomment_;
	expected_metadata_sequence_[num_expected_++] = &cuesheet_;
	expected_metadata_sequence_[num_expected_++] = &unknown_;

	if(!decoder->test_respond())
		return false;

	/*
	 * respond all, ignore APPLICATION id of app#1 & app#2
	 */

	printf("testing set_metadata_respond_all()... ");
	if(!decoder->set_metadata_respond_all()) {
		printf("FAILED, returned false\n");
		return false;
	}
	printf("OK\n");

	printf("testing set_metadata_ignore_application(of app block #1)... ");
	if(!decoder->set_metadata_ignore_application(application1_.data.application.id)) {
		printf("FAILED, returned false\n");
		return false;
	}
	printf("OK\n");