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authorMax Kellermann <max@duempel.org>2013-07-30 08:52:47 +0200
committerMax Kellermann <max@duempel.org>2013-07-30 08:52:47 +0200
commit7a3aac1843a9c84cd87512ef4e9bbc2def727591 (patch)
treee157029112d436ca4b915bf726441f49b83ac471 /src/encoder/twolame_encoder.c
parentda1f4b3ede750c83039bcd21647569bde00a2992 (diff)
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encoder/lame,twolame: convert to C++
Diffstat (limited to 'src/encoder/twolame_encoder.c')
-rw-r--r--src/encoder/twolame_encoder.c311
1 files changed, 0 insertions, 311 deletions
diff --git a/src/encoder/twolame_encoder.c b/src/encoder/twolame_encoder.c
deleted file mode 100644
index ff184977b..000000000
--- a/src/encoder/twolame_encoder.c
+++ /dev/null
@@ -1,311 +0,0 @@
-/*
- * Copyright (C) 2003-2011 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 "encoder_api.h"
-#include "encoder_plugin.h"
-#include "audio_format.h"
-
-#include <twolame.h>
-
-#include <glib.h>
-
-#include <assert.h>
-#include <string.h>
-
-struct twolame_encoder {
- struct encoder encoder;
-
- struct audio_format audio_format;
- float quality;
- int bitrate;
-
- twolame_options *options;
-
- unsigned char buffer[32768];
- size_t buffer_length;
-
- /**
- * Call libtwolame's flush function when the buffer is empty?
- */
- bool flush;
-};
-
-extern const struct encoder_plugin twolame_encoder_plugin;
-
-static inline GQuark
-twolame_encoder_quark(void)
-{
- return g_quark_from_static_string("twolame_encoder");
-}
-
-static bool
-twolame_encoder_configure(struct twolame_encoder *encoder,
- const struct config_param *param, GError **error)
-{
- const char *value;
- char *endptr;
-
- value = config_get_block_string(param, "quality", NULL);
- if (value != NULL) {
- /* a quality was configured (VBR) */
-
- encoder->quality = g_ascii_strtod(value, &endptr);
-
- if (*endptr != '\0' || encoder->quality < -1.0 ||
- encoder->quality > 10.0) {
- g_set_error(error, twolame_encoder_quark(), 0,
- "quality \"%s\" is not a number in the "
- "range -1 to 10, line %i",
- value, param->line);
- return false;
- }
-
- if (config_get_block_string(param, "bitrate", NULL) != NULL) {
- g_set_error(error, twolame_encoder_quark(), 0,
- "quality and bitrate are "
- "both defined (line %i)",
- param->line);
- return false;
- }
- } else {
- /* a bit rate was configured */
-
- value = config_get_block_string(param, "bitrate", NULL);
- if (value == NULL) {
- g_set_error(error, twolame_encoder_quark(), 0,
- "neither bitrate nor quality defined "
- "at line %i",
- param->line);
- return false;
- }
-
- encoder->quality = -2.0;
- encoder->bitrate = g_ascii_strtoll(value, &endptr, 10);
-
- if (*endptr != '\0' || encoder->bitrate <= 0) {
- g_set_error(error, twolame_encoder_quark(), 0,
- "bitrate at line %i should be a positive integer",
- param->line);
- return false;
- }
- }
-
- return true;
-}
-
-static struct encoder *
-twolame_encoder_init(const struct config_param *param, GError **error)
-{
- struct twolame_encoder *encoder;
-
- g_debug("libtwolame version %s", get_twolame_version());
-
- encoder = g_new(struct twolame_encoder, 1);
- encoder_struct_init(&encoder->encoder, &twolame_encoder_plugin);
-
- /* load configuration from "param" */
- if (!twolame_encoder_configure(encoder, param, error)) {
- /* configuration has failed, roll back and return error */
- g_free(encoder);
- return NULL;
- }
-
- return &encoder->encoder;
-}
-
-static void
-twolame_encoder_finish(struct encoder *_encoder)
-{
- struct twolame_encoder *encoder = (struct twolame_encoder *)_encoder;
-
- /* the real libtwolame cleanup was already performed by
- twolame_encoder_close(), so no real work here */
- g_free(encoder);
-}
-
-static bool
-twolame_encoder_setup(struct twolame_encoder *encoder, GError **error)
-{
- if (encoder->quality >= -1.0) {
- /* a quality was configured (VBR) */
-
- if (0 != twolame_set_VBR(encoder->options, true)) {
- g_set_error(error, twolame_encoder_quark(), 0,
- "error setting twolame VBR mode");
- return false;
- }
- if (0 != twolame_set_VBR_q(encoder->options, encoder->quality)) {
- g_set_error(error, twolame_encoder_quark(), 0,
- "error setting twolame VBR quality");
- return false;
- }
- } else {
- /* a bit rate was configured */
-
- if (0 != twolame_set_brate(encoder->options, encoder->bitrate)) {
- g_set_error(error, twolame_encoder_quark(), 0,
- "error setting twolame bitrate");
- return false;
- }
- }
-
- if (0 != twolame_set_num_channels(encoder->options,
- encoder->audio_format.channels)) {
- g_set_error(error, twolame_encoder_quark(), 0,
- "error setting twolame num channels");
- return false;
- }
-
- if (0 != twolame_set_in_samplerate(encoder->options,
- encoder->audio_format.sample_rate)) {
- g_set_error(error, twolame_encoder_quark(), 0,
- "error setting twolame sample rate");
- return false;
- }
-
- if (0 > twolame_init_params(encoder->options)) {
- g_set_error(error, twolame_encoder_quark(), 0,
- "error initializing twolame params");
- return false;
- }
-
- return true;
-}
-
-static bool
-twolame_encoder_open(struct encoder *_encoder, struct audio_format *audio_format,
- GError **error)
-{
- struct twolame_encoder *encoder = (struct twolame_encoder *)_encoder;
-
- audio_format->format = SAMPLE_FORMAT_S16;
- audio_format->channels = 2;
-
- encoder->audio_format = *audio_format;
-
- encoder->options = twolame_init();
- if (encoder->options == NULL) {
- g_set_error(error, twolame_encoder_quark(), 0,
- "twolame_init() failed");
- return false;
- }
-
- if (!twolame_encoder_setup(encoder, error)) {
- twolame_close(&encoder->options);
- return false;
- }
-
- encoder->buffer_length = 0;
- encoder->flush = false;
-
- return true;
-}
-
-static void
-twolame_encoder_close(struct encoder *_encoder)
-{
- struct twolame_encoder *encoder = (struct twolame_encoder *)_encoder;
-
- twolame_close(&encoder->options);
-}
-
-static bool
-twolame_encoder_flush(struct encoder *_encoder, gcc_unused GError **error)
-{
- struct twolame_encoder *encoder = (struct twolame_encoder *)_encoder;
-
- encoder->flush = true;
- return true;
-}
-
-static bool
-twolame_encoder_write(struct encoder *_encoder,
- const void *data, size_t length,
- gcc_unused GError **error)
-{
- struct twolame_encoder *encoder = (struct twolame_encoder *)_encoder;
- unsigned num_frames;
- const int16_t *src = (const int16_t*)data;
- int bytes_out;
-
- assert(encoder->buffer_length == 0);
-
- num_frames =
- length / audio_format_frame_size(&encoder->audio_format);
-
- bytes_out = twolame_encode_buffer_interleaved(encoder->options,
- src, num_frames,
- encoder->buffer,
- sizeof(encoder->buffer));
- if (bytes_out < 0) {
- g_set_error(error, twolame_encoder_quark(), 0,
- "twolame encoder failed");
- return false;
- }
-
- encoder->buffer_length = (size_t)bytes_out;
- return true;
-}
-
-static size_t
-twolame_encoder_read(struct encoder *_encoder, void *dest, size_t length)
-{
- struct twolame_encoder *encoder = (struct twolame_encoder *)_encoder;
-
- if (encoder->buffer_length == 0 && encoder->flush) {
- int ret = twolame_encode_flush(encoder->options,
- encoder->buffer,
- sizeof(encoder->buffer));
- if (ret > 0)
- encoder->buffer_length = (size_t)ret;
-
- encoder->flush = false;
- }
-
- if (length > encoder->buffer_length)
- length = encoder->buffer_length;
-
- memcpy(dest, encoder->buffer, length);
-
- encoder->buffer_length -= length;
- memmove(encoder->buffer, encoder->buffer + length,
- encoder->buffer_length);
-
- return length;
-}
-
-static const char *
-twolame_encoder_get_mime_type(gcc_unused struct encoder *_encoder)
-{
- return "audio/mpeg";
-}
-
-const struct encoder_plugin twolame_encoder_plugin = {
- .name = "twolame",
- .init = twolame_encoder_init,
- .finish = twolame_encoder_finish,
- .open = twolame_encoder_open,
- .close = twolame_encoder_close,
- .end = twolame_encoder_flush,
- .flush = twolame_encoder_flush,
- .write = twolame_encoder_write,
- .read = twolame_encoder_read,
- .get_mime_type = twolame_encoder_get_mime_type,
-};