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-rw-r--r--src/encoder/LameEncoderPlugin.cxx293
1 files changed, 0 insertions, 293 deletions
diff --git a/src/encoder/LameEncoderPlugin.cxx b/src/encoder/LameEncoderPlugin.cxx
deleted file mode 100644
index 06082d16b..000000000
--- a/src/encoder/LameEncoderPlugin.cxx
+++ /dev/null
@@ -1,293 +0,0 @@
-/*
- * Copyright (C) 2003-2013 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 "LameEncoderPlugin.hxx"
-#include "EncoderAPI.hxx"
-#include "AudioFormat.hxx"
-#include "ConfigError.hxx"
-#include "util/NumberParser.hxx"
-#include "util/ReusableArray.hxx"
-#include "util/Manual.hxx"
-#include "util/Error.hxx"
-#include "util/Domain.hxx"
-
-#include <lame/lame.h>
-
-#include <assert.h>
-#include <string.h>
-
-struct LameEncoder final {
- Encoder encoder;
-
- AudioFormat audio_format;
- float quality;
- int bitrate;
-
- lame_global_flags *gfp;
-
- Manual<ReusableArray<unsigned char, 32768>> output_buffer;
- unsigned char *output_begin, *output_end;
-
- LameEncoder():encoder(lame_encoder_plugin) {}
-
- bool Configure(const config_param &param, Error &error);
-};
-
-static constexpr Domain lame_encoder_domain("lame_encoder");
-
-bool
-LameEncoder::Configure(const config_param &param, Error &error)
-{
- const char *value;
- char *endptr;
-
- value = param.GetBlockValue("quality");
- if (value != nullptr) {
- /* a quality was configured (VBR) */
-
- quality = ParseDouble(value, &endptr);
-
- if (*endptr != '\0' || quality < -1.0 || quality > 10.0) {
- error.Format(config_domain,
- "quality \"%s\" is not a number in the "
- "range -1 to 10",
- value);
- return false;
- }
-
- if (param.GetBlockValue("bitrate") != nullptr) {
- error.Set(config_domain,
- "quality and bitrate are both defined");
- return false;
- }
- } else {
- /* a bit rate was configured */
-
- value = param.GetBlockValue("bitrate");
- if (value == nullptr) {
- error.Set(config_domain,
- "neither bitrate nor quality defined");
- return false;
- }
-
- quality = -2.0;
- bitrate = ParseInt(value, &endptr);
-
- if (*endptr != '\0' || bitrate <= 0) {
- error.Set(config_domain,
- "bitrate should be a positive integer");
- return false;
- }
- }
-
- return true;
-}
-
-static Encoder *
-lame_encoder_init(const config_param &param, Error &error)
-{
- LameEncoder *encoder = new LameEncoder();
-
- /* load configuration from "param" */
- if (!encoder->Configure(param, error)) {
- /* configuration has failed, roll back and return error */
- delete encoder;
- return nullptr;
- }
-
- return &encoder->encoder;
-}
-
-static void
-lame_encoder_finish(Encoder *_encoder)
-{
- LameEncoder *encoder = (LameEncoder *)_encoder;
-
- /* the real liblame cleanup was already performed by
- lame_encoder_close(), so no real work here */
- delete encoder;
-}
-
-static bool
-lame_encoder_setup(LameEncoder *encoder, Error &error)
-{
- if (encoder->quality >= -1.0) {
- /* a quality was configured (VBR) */
-
- if (0 != lame_set_VBR(encoder->gfp, vbr_rh)) {
- error.Set(lame_encoder_domain,
- "error setting lame VBR mode");
- return false;
- }
- if (0 != lame_set_VBR_q(encoder->gfp, encoder->quality)) {
- error.Set(lame_encoder_domain,
- "error setting lame VBR quality");
- return false;
- }
- } else {
- /* a bit rate was configured */
-
- if (0 != lame_set_brate(encoder->gfp, encoder->bitrate)) {
- error.Set(lame_encoder_domain,
- "error setting lame bitrate");
- return false;
- }
- }
-
- if (0 != lame_set_num_channels(encoder->gfp,
- encoder->audio_format.channels)) {
- error.Set(lame_encoder_domain,
- "error setting lame num channels");
- return false;
- }
-
- if (0 != lame_set_in_samplerate(encoder->gfp,
- encoder->audio_format.sample_rate)) {
- error.Set(lame_encoder_domain,
- "error setting lame sample rate");
- return false;
- }
-
- if (0 != lame_set_out_samplerate(encoder->gfp,
- encoder->audio_format.sample_rate)) {
- error.Set(lame_encoder_domain,
- "error setting lame out sample rate");
- return false;
- }
-
- if (0 > lame_init_params(encoder->gfp)) {
- error.Set(lame_encoder_domain,
- "error initializing lame params");
- return false;
- }
-
- return true;
-}
-
-static bool
-lame_encoder_open(Encoder *_encoder, AudioFormat &audio_format, Error &error)
-{
- LameEncoder *encoder = (LameEncoder *)_encoder;
-
- audio_format.format = SampleFormat::S16;
- audio_format.channels = 2;
-
- encoder->audio_format = audio_format;
-
- encoder->gfp = lame_init();
- if (encoder->gfp == nullptr) {
- error.Set(lame_encoder_domain, "lame_init() failed");
- return false;
- }
-
- if (!lame_encoder_setup(encoder, error)) {
- lame_close(encoder->gfp);
- return false;
- }
-
- encoder->output_buffer.Construct();
- encoder->output_begin = encoder->output_end = nullptr;
-
- return true;
-}
-
-static void
-lame_encoder_close(Encoder *_encoder)
-{
- LameEncoder *encoder = (LameEncoder *)_encoder;
-
- lame_close(encoder->gfp);
- encoder->output_buffer.Destruct();
-}
-
-static bool
-lame_encoder_write(Encoder *_encoder,
- const void *data, size_t length,
- gcc_unused Error &error)
-{
- LameEncoder *encoder = (LameEncoder *)_encoder;
- const int16_t *src = (const int16_t*)data;
-
- assert(encoder->output_begin == encoder->output_end);
-
- const unsigned num_frames =
- length / encoder->audio_format.GetFrameSize();
- const unsigned num_samples =
- length / encoder->audio_format.GetSampleSize();
-
- /* worst-case formula according to LAME documentation */
- const size_t output_buffer_size = 5 * num_samples / 4 + 7200;
- const auto output_buffer = encoder->output_buffer->Get(output_buffer_size);
-
- /* this is for only 16-bit audio */
-
- int bytes_out = lame_encode_buffer_interleaved(encoder->gfp,
- const_cast<short *>(src),
- num_frames,
- output_buffer,
- output_buffer_size);
-
- if (bytes_out < 0) {
- error.Set(lame_encoder_domain, "lame encoder failed");
- return false;
- }
-
- encoder->output_begin = output_buffer;
- encoder->output_end = output_buffer + bytes_out;
- return true;
-}
-
-static size_t
-lame_encoder_read(Encoder *_encoder, void *dest, size_t length)
-{
- LameEncoder *encoder = (LameEncoder *)_encoder;
-
- const auto begin = encoder->output_begin;
- assert(begin <= encoder->output_end);
- const size_t remainning = encoder->output_end - begin;
- if (length > remainning)
- length = remainning;
-
- memcpy(dest, begin, length);
-
- encoder->output_begin = begin + length;
- return length;
-}
-
-static const char *
-lame_encoder_get_mime_type(gcc_unused Encoder *_encoder)
-{
- return "audio/mpeg";
-}
-
-const EncoderPlugin lame_encoder_plugin = {
- "lame",
- lame_encoder_init,
- lame_encoder_finish,
- lame_encoder_open,
- lame_encoder_close,
- nullptr,
- nullptr,
- nullptr,
- nullptr,
- lame_encoder_write,
- lame_encoder_read,
- lame_encoder_get_mime_type,
-};
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-02 17:00:45 +0000