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authorMax Kellermann <max@duempel.org>2014-01-23 23:09:14 +0100
committerMax Kellermann <max@duempel.org>2014-01-23 23:09:14 +0100
commit655ad344140ee250f8becf67544dbe035a3460b1 (patch)
tree1f9cf0ce40ba07378d2c129d765034c24284ffbe /src/encoder/FlacEncoderPlugin.cxx
parent017eecb8e8403f154fbd8c009437eb09abc60310 (diff)
downloadmpd-655ad344140ee250f8becf67544dbe035a3460b1.tar.gz
mpd-655ad344140ee250f8becf67544dbe035a3460b1.tar.xz
mpd-655ad344140ee250f8becf67544dbe035a3460b1.zip
Encoder*: move to src/encoder
.. and move the plugins to src/encoder/plugins/.
Diffstat (limited to 'src/encoder/FlacEncoderPlugin.cxx')
-rw-r--r--src/encoder/FlacEncoderPlugin.cxx325
1 files changed, 0 insertions, 325 deletions
diff --git a/src/encoder/FlacEncoderPlugin.cxx b/src/encoder/FlacEncoderPlugin.cxx
deleted file mode 100644
index 83ceea699..000000000
--- a/src/encoder/FlacEncoderPlugin.cxx
+++ /dev/null
@@ -1,325 +0,0 @@
-/*
- * Copyright (C) 2003-2014 The Music Player Daemon Project
- * http://www.musicpd.org
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "config.h"
-#include "FlacEncoderPlugin.hxx"
-#include "EncoderAPI.hxx"
-#include "AudioFormat.hxx"
-#include "pcm/PcmBuffer.hxx"
-#include "ConfigError.hxx"
-#include "util/Manual.hxx"
-#include "util/DynamicFifoBuffer.hxx"
-#include "util/Error.hxx"
-#include "util/Domain.hxx"
-
-#include <FLAC/stream_encoder.h>
-
-#if !defined(FLAC_API_VERSION_CURRENT) || FLAC_API_VERSION_CURRENT <= 7
-#error libFLAC is too old
-#endif
-
-struct flac_encoder {
- Encoder encoder;
-
- AudioFormat audio_format;
- unsigned compression;
-
- FLAC__StreamEncoder *fse;
-
- PcmBuffer expand_buffer;
-
- /**
- * This buffer will hold encoded data from libFLAC until it is
- * picked up with flac_encoder_read().
- */
- Manual<DynamicFifoBuffer<uint8_t>> output_buffer;
-
- flac_encoder():encoder(flac_encoder_plugin) {}
-};
-
-static constexpr Domain flac_encoder_domain("vorbis_encoder");
-
-static bool
-flac_encoder_configure(struct flac_encoder *encoder, const config_param &param,
- gcc_unused Error &error)
-{
- encoder->compression = param.GetBlockValue("compression", 5u);
-
- return true;
-}
-
-static Encoder *
-flac_encoder_init(const config_param &param, Error &error)
-{
- flac_encoder *encoder = new flac_encoder();
-
- /* load configuration from "param" */
- if (!flac_encoder_configure(encoder, param, error)) {
- /* configuration has failed, roll back and return error */
- delete encoder;
- return nullptr;
- }
-
- return &encoder->encoder;
-}
-
-static void
-flac_encoder_finish(Encoder *_encoder)
-{
- struct flac_encoder *encoder = (struct flac_encoder *)_encoder;
-
- /* the real libFLAC cleanup was already performed by
- flac_encoder_close(), so no real work here */
- delete encoder;
-}
-
-static bool
-flac_encoder_setup(struct flac_encoder *encoder, unsigned bits_per_sample,
- Error &error)
-{
- if ( !FLAC__stream_encoder_set_compression_level(encoder->fse,
- encoder->compression)) {
- error.Format(config_domain,
- "error setting flac compression to %d",
- encoder->compression);
- return false;
- }
-
- if ( !FLAC__stream_encoder_set_channels(encoder->fse,
- encoder->audio_format.channels)) {
- error.Format(config_domain,
- "error setting flac channels num to %d",
- encoder->audio_format.channels);
- return false;
- }
- if ( !FLAC__stream_encoder_set_bits_per_sample(encoder->fse,
- bits_per_sample)) {
- error.Format(config_domain,
- "error setting flac bit format to %d",
- bits_per_sample);
- return false;
- }
- if ( !FLAC__stream_encoder_set_sample_rate(encoder->fse,
- encoder->audio_format.sample_rate)) {
- error.Format(config_domain,
- "error setting flac sample rate to %d",
- encoder->audio_format.sample_rate);
- return false;
- }
- return true;
-}
-
-static FLAC__StreamEncoderWriteStatus
-flac_write_callback(gcc_unused const FLAC__StreamEncoder *fse,
- const FLAC__byte data[],
- size_t bytes,
- gcc_unused unsigned samples,
- gcc_unused unsigned current_frame, void *client_data)
-{
- struct flac_encoder *encoder = (struct flac_encoder *) client_data;
-
- //transfer data to buffer
- encoder->output_buffer->Append((const uint8_t *)data, bytes);
-
- return FLAC__STREAM_ENCODER_WRITE_STATUS_OK;
-}
-
-static void
-flac_encoder_close(Encoder *_encoder)
-{
- struct flac_encoder *encoder = (struct flac_encoder *)_encoder;
-
- FLAC__stream_encoder_delete(encoder->fse);
-
- encoder->expand_buffer.Clear();
- encoder->output_buffer.Destruct();
-}
-
-static bool
-flac_encoder_open(Encoder *_encoder, AudioFormat &audio_format, Error &error)
-{
- struct flac_encoder *encoder = (struct flac_encoder *)_encoder;
- unsigned bits_per_sample;
-
- encoder->audio_format = audio_format;
-
- /* FIXME: flac should support 32bit as well */
- switch (audio_format.format) {
- case SampleFormat::S8:
- bits_per_sample = 8;
- break;
-
- case SampleFormat::S16:
- bits_per_sample = 16;
- break;
-
- case SampleFormat::S24_P32:
- bits_per_sample = 24;
- break;
-
- default:
- bits_per_sample = 24;
- audio_format.format = SampleFormat::S24_P32;
- }
-
- /* allocate the encoder */
- encoder->fse = FLAC__stream_encoder_new();
- if (encoder->fse == nullptr) {
- error.Set(flac_encoder_domain, "flac_new() failed");
- return false;
- }
-
- if (!flac_encoder_setup(encoder, bits_per_sample, error)) {
- FLAC__stream_encoder_delete(encoder->fse);
- return false;
- }
-
- encoder->output_buffer.Construct(8192);
-
- /* this immediately outputs data through callback */
-
- {
- FLAC__StreamEncoderInitStatus init_status;
-
- init_status = FLAC__stream_encoder_init_stream(encoder->fse,
- flac_write_callback,
- nullptr, nullptr, nullptr, encoder);
-
- if(init_status != FLAC__STREAM_ENCODER_INIT_STATUS_OK) {
- error.Format(flac_encoder_domain,
- "failed to initialize encoder: %s\n",
- FLAC__StreamEncoderInitStatusString[init_status]);
- flac_encoder_close(_encoder);
- return false;
- }
- }
-
- return true;
-}
-
-
-static bool
-flac_encoder_flush(Encoder *_encoder, gcc_unused Error &error)
-{
- struct flac_encoder *encoder = (struct flac_encoder *)_encoder;
-
- (void) FLAC__stream_encoder_finish(encoder->fse);
- return true;
-}
-
-static inline void
-pcm8_to_flac(int32_t *out, const int8_t *in, unsigned num_samples)
-{
- while (num_samples > 0) {
- *out++ = *in++;
- --num_samples;
- }
-}
-
-static inline void
-pcm16_to_flac(int32_t *out, const int16_t *in, unsigned num_samples)
-{
- while (num_samples > 0) {
- *out++ = *in++;
- --num_samples;
- }
-}
-
-static bool
-flac_encoder_write(Encoder *_encoder,
- const void *data, size_t length,
- gcc_unused Error &error)
-{
- struct flac_encoder *encoder = (struct flac_encoder *)_encoder;
- unsigned num_frames, num_samples;
- void *exbuffer;
- const void *buffer = nullptr;
-
- /* format conversion */
-
- num_frames = length / encoder->audio_format.GetFrameSize();
- num_samples = num_frames * encoder->audio_format.channels;
-
- switch (encoder->audio_format.format) {
- case SampleFormat::S8:
- exbuffer = encoder->expand_buffer.Get(length * 4);
- pcm8_to_flac((int32_t *)exbuffer, (const int8_t *)data,
- num_samples);
- buffer = exbuffer;
- break;
-
- case SampleFormat::S16:
- exbuffer = encoder->expand_buffer.Get(length * 2);
- pcm16_to_flac((int32_t *)exbuffer, (const int16_t *)data,
- num_samples);
- buffer = exbuffer;
- break;
-
- case SampleFormat::S24_P32:
- case SampleFormat::S32:
- /* nothing need to be done; format is the same for
- both mpd and libFLAC */
- buffer = data;
- break;
-
- default:
- gcc_unreachable();
- }
-
- /* feed samples to encoder */
-
- if (!FLAC__stream_encoder_process_interleaved(encoder->fse,
- (const FLAC__int32 *)buffer,
- num_frames)) {
- error.Set(flac_encoder_domain, "flac encoder process failed");
- return false;
- }
-
- return true;
-}
-
-static size_t
-flac_encoder_read(Encoder *_encoder, void *dest, size_t length)
-{
- struct flac_encoder *encoder = (struct flac_encoder *)_encoder;
-
- return encoder->output_buffer->Read((uint8_t *)dest, length);
-}
-
-static const char *
-flac_encoder_get_mime_type(gcc_unused Encoder *_encoder)
-{
- return "audio/flac";
-}
-
-const EncoderPlugin flac_encoder_plugin = {
- "flac",
- flac_encoder_init,
- flac_encoder_finish,
- flac_encoder_open,
- flac_encoder_close,
- flac_encoder_flush,
- flac_encoder_flush,
- nullptr,
- nullptr,
- flac_encoder_write,
- flac_encoder_read,
- flac_encoder_get_mime_type,
-};
-