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.

	/*
	 * 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");

	printf("testing set_metadata_ignore_application(of app block #2)... ");
	if(!decoder->set_metadata_ignore_application(application2_.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_++] = &vorbiscomment_;
	expected_metadata_sequence_[num_expected_++] = &cuesheet_;
	expected_metadata_sequence_[num_expected_++] = &unknown_;

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

	/*
	 * ignore all, respond VORBIS_COMMENT
	 */

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

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

	num_expected_ = 0;
	expected_metadata_sequence_[num_expected_++] = &vorbiscomment_;

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

	/*
	 * ignore all, respond APPLICATION
	 */

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

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

	num_expected_ = 0;
	expected_metadata_sequence_[num_expected_++] = &application1_;
	expected_metadata_sequence_[num_expected_++] = &application2_;

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

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

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

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

	num_expected_ = 0;
	expected_metadata_sequence_[num_expected_++] = &application1_;

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

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

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

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

	printf("testing set_metadata_respond_application(of app block #2)... ");
	if(!decoder->set_metadata_respond_application(application2_.data.application.id)) {
		printf("FAILED, returned false\n");
		return false;
	}
	printf("OK\n");

	num_expected_ = 0;
	expected_metadata_sequence_[num_expected_++] = &application1_;
	expected_metadata_sequence_[num_expected_++] = &application2_;

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

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

	printf("testing set_metadata_respond_application(of app block #1)... ");
	if(!decoder->set_metadata_respond_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_++] = &application1_;
	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, respond APPLICATION, ignore APPLICATION id of app#1
	 */

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

	printf("testing set_metadata_respond(APPLICATION)... ");
	if(!decoder->set_metadata_respond(FLAC__METADATA_TYPE_APPLICATION)) {
		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_++] = &application2_;

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

	/* done, now leave the sequence the way we found it... */
	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_;

	::fclose(decoder->file_);

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

	printf("\nPASSED!\n");

	return true;
}

class SeekableStreamDecoder : public FLAC::Decoder::SeekableStream, public DecoderCommon {
public:
	SeekableStreamDecoder(): FLAC::Decoder::SeekableStream(), DecoderCommon() { }
	~SeekableStreamDecoder() { }

	// from FLAC::Decoder::SeekableStream
	::FLAC__SeekableStreamDecoderReadStatus read_callback(FLAC__byte buffer[], unsigned *bytes);
	::FLAC__SeekableStreamDecoderSeekStatus seek_callback(FLAC__uint64 absolute_byte_offset);
	::FLAC__SeekableStreamDecoderTellStatus tell_callback(FLAC__uint64 *absolute_byte_offset);
	::FLAC__SeekableStreamDecoderLengthStatus length_callback(FLAC__uint64 *stream_length);
	bool eof_callback();
	::FLAC__StreamDecoderWriteStatus write_callback(const ::FLAC__Frame *frame, const FLAC__int32 * const buffer[]);
	void metadata_callback(const ::FLAC__StreamMetadata *metadata);
	void error_callback(::FLAC__StreamDecoderErrorStatus status);

	bool die(const char *msg = 0) const;

	bool test_respond();
};

::FLAC__SeekableStreamDecoderReadStatus SeekableStreamDecoder::read_callback(FLAC__byte buffer[], unsigned *bytes)
{
	switch(common_read_callback_(buffer, bytes)) {
		case ::FLAC__STREAM_DECODER_READ_STATUS_CONTINUE:
			return ::FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_OK;
		case ::FLAC__STREAM_DECODER_READ_STATUS_ABORT:
		case ::FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM:
			return ::FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_ERROR;
		default:
			FLAC__ASSERT(0);
			return ::FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_ERROR;
	}
}

::FLAC__SeekableStreamDecoderSeekStatus SeekableStreamDecoder::seek_callback(FLAC__uint64 absolute_byte_offset)
{
	if(error_occurred_)
		return ::FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_ERROR;

	if(::fseek(file_, (long)absolute_byte_offset, SEEK_SET) < 0) {
		error_occurred_ = true;
		return ::FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_ERROR;
	}

	return ::FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_OK;
}

::FLAC__SeekableStreamDecoderTellStatus SeekableStreamDecoder::tell_callback(FLAC__uint64 *absolute_byte_offset)
{
	if(error_occurred_)
		return ::FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_ERROR;

	long offset = ::ftell(file_);
	*absolute_byte_offset = (FLAC__uint64)offset;

	if(offset < 0) {
		error_occurred_ = true;
		return ::FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_ERROR;
	}

	return ::FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_OK;
}

::FLAC__SeekableStreamDecoderLengthStatus SeekableStreamDecoder::length_callback(FLAC__uint64 *stream_length)
{
	if(error_occurred_)
		return ::FLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_ERROR;

	*stream_length = (FLAC__uint64)flacfilesize_;
	return ::FLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_OK;
}

bool SeekableStreamDecoder::eof_callback()
{
	if(error_occurred_)
		return true;