| /* 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<bool>(::FLAC__stream_decoder_set_ogg_serial_number(decoder_, value)); |
| } |
| |
| bool Stream::set_md5_checking(bool value) |
| { |
| FLAC__ASSERT(is_valid()); |
| return static_cast<bool>(::FLAC__stream_decoder_set_md5_checking(decoder_, value)); |
| } |
| |
| bool Stream::set_metadata_respond(::FLAC__MetadataType type) |
| { |
| FLAC__ASSERT(is_valid()); |
| return static_cast<bool>(::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<bool>(::FLAC__stream_decoder_set_metadata_respond_application(decoder_, id)); |
| } |
| |
| bool Stream::set_metadata_respond_all() |
| { |
| FLAC__ASSERT(is_valid()); |
| return static_cast<bool>(::FLAC__stream_decoder_set_metadata_respond_all(decoder_)); |
| } |
| |
| bool Stream::set_metadata_ignore(::FLAC__MetadataType type) |
| { |
| FLAC__ASSERT(is_valid()); |
| return static_cast<bool>(::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<bool>(::FLAC__stream_decoder_set_metadata_ignore_application(decoder_, id)); |
| } |
| |
| bool Stream::set_metadata_ignore_all() |
| { |
| FLAC__ASSERT(is_valid()); |
| return static_cast<bool>(::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<bool>(::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<bool>(::FLAC__stream_decoder_finish(decoder_)); |
| } |
| |
| bool Stream::flush() |
| { |
| FLAC__ASSERT(is_valid()); |
| return static_cast<bool>(::FLAC__stream_decoder_flush(decoder_)); |
| } |
| |
| bool Stream::reset() |
| { |
| FLAC__ASSERT(is_valid()); |
| return static_cast<bool>(::FLAC__stream_decoder_reset(decoder_)); |
| } |
| |
| bool Stream::process_single() |
| { |
| FLAC__ASSERT(is_valid()); |
| return static_cast<bool>(::FLAC__stream_decoder_process_single(decoder_)); |
| } |
| |
| bool Stream::process_until_end_of_metadata() |
| { |
| FLAC__ASSERT(is_valid()); |
| return static_cast<bool>(::FLAC__stream_decoder_process_until_end_of_metadata(decoder_)); |
| } |
| |
| bool Stream::process_until_end_of_stream() |
| { |
| FLAC__ASSERT(is_valid()); |
| return static_cast<bool>(::FLAC__stream_decoder_process_until_end_of_stream(decoder_)); |
| } |
| |
| bool Stream::skip_single_frame() |
| { |
| FLAC__ASSERT(is_valid()); |
| return static_cast<bool>(::FLAC__stream_decoder_skip_single_frame(decoder_)); |
| } |
| |
| bool Stream::seek_absolute(FLAC__uint64 sample) |
| { |
| FLAC__ASSERT(is_valid()); |
| return static_cast<bool>(::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<Stream *>(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<Stream *>(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<Stream *>(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<Stream *>(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<Stream *>(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<Stream *>(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<Stream *>(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<Stream *>(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 |