/* libFLAC++ - Free Lossless Audio Codec library * Copyright (C) 2002-2009 Josh Coalson * Copyright (C) 2011-2016 Xiph.Org Foundation * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * - Neither the name of the Xiph.org Foundation nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "FLAC++/decoder.h" #include "FLAC/assert.h" #ifdef _MSC_VER // warning C4800: 'int' : forcing to bool 'true' or 'false' (performance warning) #pragma warning ( disable : 4800 ) #endif namespace FLAC { namespace Decoder { // ------------------------------------------------------------ // // Stream // // ------------------------------------------------------------ Stream::Stream(): decoder_(::FLAC__stream_decoder_new()) { } Stream::~Stream() { if(0 != decoder_) { (void)::FLAC__stream_decoder_finish(decoder_); ::FLAC__stream_decoder_delete(decoder_); } } bool Stream::is_valid() const { return 0 != decoder_; } bool Stream::set_ogg_serial_number(long value) { FLAC__ASSERT(is_valid()); return static_cast(::FLAC__stream_decoder_set_ogg_serial_number(decoder_, value)); } bool Stream::set_md5_checking(bool value) { FLAC__ASSERT(is_valid()); return static_cast(::FLAC__stream_decoder_set_md5_checking(decoder_, value)); } bool Stream::set_metadata_respond(::FLAC__MetadataType type) { FLAC__ASSERT(is_valid()); return static_cast(::FLAC__stream_decoder_set_metadata_respond(decoder_, type)); } bool Stream::set_metadata_respond_application(const FLAC__byte id[4]) { FLAC__ASSERT(is_valid()); return static_cast(::FLAC__stream_decoder_set_metadata_respond_application(decoder_, id)); } bool Stream::set_metadata_respond_all() { FLAC__ASSERT(is_valid()); return static_cast(::FLAC__stream_decoder_set_metadata_respond_all(decoder_)); } bool Stream::set_metadata_ignore(::FLAC__MetadataType type) { FLAC__ASSERT(is_valid()); return static_cast(::FLAC__stream_decoder_set_metadata_ignore(decoder_, type)); } bool Stream::set_metadata_ignore_application(const FLAC__byte id[4]) { FLAC__ASSERT(is_valid()); return static_cast(::FLAC__stream_decoder_set_metadata_ignore_application(decoder_, id)); } bool Stream::set_metadata_ignore_all() { FLAC__ASSERT(is_valid()); return static_cast(::FLAC__stream_decoder_set_metadata_ignore_all(decoder_)); } Stream::State Stream::get_state() const { FLAC__ASSERT(is_valid()); return State(::FLAC__stream_decoder_get_state(decoder_)); } bool Stream::get_md5_checking() const { FLAC__ASSERT(is_valid()); return static_cast(::FLAC__stream_decoder_get_md5_checking(decoder_)); } FLAC__uint64 Stream::get_total_samples() const { FLAC__ASSERT(is_valid()); return ::FLAC__stream_decoder_get_total_samples(decoder_); } uint32_t Stream::get_channels() const { FLAC__ASSERT(is_valid()); return ::FLAC__stream_decoder_get_channels(decoder_); } ::FLAC__ChannelAssignment Stream::get_channel_assignment() const { FLAC__ASSERT(is_valid()); return ::FLAC__stream_decoder_get_channel_assignment(decoder_); } uint32_t Stream::get_bits_per_sample() const { FLAC__ASSERT(is_valid()); return ::FLAC__stream_decoder_get_bits_per_sample(decoder_); } uint32_t Stream::get_sample_rate() const { FLAC__ASSERT(is_valid()); return ::FLAC__stream_decoder_get_sample_rate(decoder_); } uint32_t Stream::get_blocksize() const { FLAC__ASSERT(is_valid()); return ::FLAC__stream_decoder_get_blocksize(decoder_); } bool Stream::get_decode_position(FLAC__uint64 *position) const { FLAC__ASSERT(is_valid()); return ::FLAC__stream_decoder_get_decode_position(decoder_, position); } ::FLAC__StreamDecoderInitStatus Stream::init() { FLAC__ASSERT(is_valid()); return ::FLAC__stream_decoder_init_stream(decoder_, read_callback_, seek_callback_, tell_callback_, length_callback_, eof_callback_, write_callback_, metadata_callback_, error_callback_, /*client_data=*/(void*)this); } ::FLAC__StreamDecoderInitStatus Stream::init_ogg() { FLAC__ASSERT(is_valid()); return ::FLAC__stream_decoder_init_ogg_stream(decoder_, read_callback_, seek_callback_, tell_callback_, length_callback_, eof_callback_, write_callback_, metadata_callback_, error_callback_, /*client_data=*/(void*)this); } bool Stream::finish() { FLAC__ASSERT(is_valid()); return static_cast(::FLAC__stream_decoder_finish(decoder_)); } bool Stream::flush() { FLAC__ASSERT(is_valid()); return static_cast(::FLAC__stream_decoder_flush(decoder_)); } bool Stream::reset() { FLAC__ASSERT(is_valid()); return static_cast(::FLAC__stream_decoder_reset(decoder_)); } bool Stream::process_single() { FLAC__ASSERT(is_valid()); return static_cast(::FLAC__stream_decoder_process_single(decoder_)); } bool Stream::process_until_end_of_metadata() { FLAC__ASSERT(is_valid()); return static_cast(::FLAC__stream_decoder_process_until_end_of_metadata(decoder_)); } bool Stream::process_until_end_of_stream() { FLAC__ASSERT(is_valid()); return static_cast(::FLAC__stream_decoder_process_until_end_of_stream(decoder_)); } bool Stream::skip_single_frame() { FLAC__ASSERT(is_valid()); return static_cast(::FLAC__stream_decoder_skip_single_frame(decoder_)); } bool Stream::seek_absolute(FLAC__uint64 sample) { FLAC__ASSERT(is_valid()); return static_cast(::FLAC__stream_decoder_seek_absolute(decoder_, sample)); } ::FLAC__StreamDecoderSeekStatus Stream::seek_callback(FLAC__uint64 absolute_byte_offset) { (void)absolute_byte_offset; return ::FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED; } ::FLAC__StreamDecoderTellStatus Stream::tell_callback(FLAC__uint64 *absolute_byte_offset) { (void)absolute_byte_offset; return ::FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED; } ::FLAC__StreamDecoderLengthStatus Stream::length_callback(FLAC__uint64 *stream_length) { (void)stream_length; return ::FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED; } bool Stream::eof_callback() { return false; } void Stream::metadata_callback(const ::FLAC__StreamMetadata *metadata) { (void)metadata; } ::FLAC__StreamDecoderReadStatus Stream::read_callback_(const ::FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data) { (void)decoder; FLAC__ASSERT(0 != client_data); Stream *instance = reinterpret_cast(client_data); FLAC__ASSERT(0 != instance); return instance->read_callback(buffer, bytes); } ::FLAC__StreamDecoderSeekStatus Stream::seek_callback_(const ::FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data) { (void) decoder; FLAC__ASSERT(0 != client_data); Stream *instance = reinterpret_cast(client_data); FLAC__ASSERT(0 != instance); return instance->seek_callback(absolute_byte_offset); } ::FLAC__StreamDecoderTellStatus Stream::tell_callback_(const ::FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data) { (void) decoder; FLAC__ASSERT(0 != client_data); Stream *instance = reinterpret_cast(client_data); FLAC__ASSERT(0 != instance); return instance->tell_callback(absolute_byte_offset); } ::FLAC__StreamDecoderLengthStatus Stream::length_callback_(const ::FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data) { (void) decoder; FLAC__ASSERT(0 != client_data); Stream *instance = reinterpret_cast(client_data); FLAC__ASSERT(0 != instance); return instance->length_callback(stream_length); } FLAC__bool Stream::eof_callback_(const ::FLAC__StreamDecoder *decoder, void *client_data) { (void) decoder; FLAC__ASSERT(0 != client_data); Stream *instance = reinterpret_cast(client_data); FLAC__ASSERT(0 != instance); return instance->eof_callback(); } ::FLAC__StreamDecoderWriteStatus Stream::write_callback_(const ::FLAC__StreamDecoder *decoder, const ::FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data) { (void)decoder; FLAC__ASSERT(0 != client_data); Stream *instance = reinterpret_cast(client_data); FLAC__ASSERT(0 != instance); return instance->write_callback(frame, buffer); } void Stream::metadata_callback_(const ::FLAC__StreamDecoder *decoder, const ::FLAC__StreamMetadata *metadata, void *client_data) { (void)decoder; FLAC__ASSERT(0 != client_data); Stream *instance = reinterpret_cast(client_data); FLAC__ASSERT(0 != instance); instance->metadata_callback(metadata); } void Stream::error_callback_(const ::FLAC__StreamDecoder *decoder, ::FLAC__StreamDecoderErrorStatus status, void *client_data) { (void)decoder; FLAC__ASSERT(0 != client_data); Stream *instance = reinterpret_cast(client_data); FLAC__ASSERT(0 != instance); instance->error_callback(status); } // ------------------------------------------------------------ // // File // // ------------------------------------------------------------ File::File(): Stream() { } File::~File() { } ::FLAC__StreamDecoderInitStatus File::init(FILE *file) { FLAC__ASSERT(0 != decoder_); return ::FLAC__stream_decoder_init_FILE(decoder_, file, write_callback_, metadata_callback_, error_callback_, /*client_data=*/(void*)this); } ::FLAC__StreamDecoderInitStatus File::init(const char *filename) { FLAC__ASSERT(0 != decoder_); return ::FLAC__stream_decoder_init_file(decoder_, filename, write_callback_, metadata_callback_, error_callback_, /*client_data=*/(void*)this); } ::FLAC__StreamDecoderInitStatus File::init(const std::string &filename) { return init(filename.c_str()); } ::FLAC__StreamDecoderInitStatus File::init_ogg(FILE *file) { FLAC__ASSERT(0 != decoder_); return ::FLAC__stream_decoder_init_ogg_FILE(decoder_, file, write_callback_, metadata_callback_, error_callback_, /*client_data=*/(void*)this); } ::FLAC__StreamDecoderInitStatus File::init_ogg(const char *filename) { FLAC__ASSERT(0 != decoder_); return ::FLAC__stream_decoder_init_ogg_file(decoder_, filename, write_callback_, metadata_callback_, error_callback_, /*client_data=*/(void*)this); } ::FLAC__StreamDecoderInitStatus File::init_ogg(const std::string &filename) { return init_ogg(filename.c_str()); } // This is a dummy to satisfy the pure virtual from Stream; the // read callback will never be called since we are initializing // with FLAC__stream_decoder_init_FILE() or // FLAC__stream_decoder_init_file() and those supply the read // callback internally. ::FLAC__StreamDecoderReadStatus File::read_callback(FLAC__byte buffer[], size_t *bytes) { (void)buffer, (void)bytes; FLAC__ASSERT(false); return ::FLAC__STREAM_DECODER_READ_STATUS_ABORT; // double protection } } // namespace Decoder } // namespace FLAC