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-rw-r--r--src/encoder/flac_encoder.c363
1 files changed, 0 insertions, 363 deletions
diff --git a/src/encoder/flac_encoder.c b/src/encoder/flac_encoder.c
deleted file mode 100644
index e32588e29..000000000
--- a/src/encoder/flac_encoder.c
+++ /dev/null
@@ -1,363 +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 "pcm_buffer.h"
-#include "fifo_buffer.h"
-#include "growing_fifo.h"
-
-#include <assert.h>
-#include <string.h>
-
-#include <FLAC/stream_encoder.h>
-
-struct flac_encoder {
- struct encoder encoder;
-
- struct audio_format audio_format;
- unsigned compression;
-
- FLAC__StreamEncoder *fse;
-
- struct pcm_buffer expand_buffer;
-
- /**
- * This buffer will hold encoded data from libFLAC until it is
- * picked up with flac_encoder_read().
- */
- struct fifo_buffer *output_buffer;
-};
-
-extern const struct encoder_plugin flac_encoder_plugin;
-
-
-static inline GQuark
-flac_encoder_quark(void)
-{
- return g_quark_from_static_string("flac_encoder");
-}
-
-static bool
-flac_encoder_configure(struct flac_encoder *encoder,
- const struct config_param *param, G_GNUC_UNUSED GError **error)
-{
- encoder->compression = config_get_block_unsigned(param,
- "compression", 5);
-
- return true;
-}
-
-static struct encoder *
-flac_encoder_init(const struct config_param *param, GError **error)
-{
- struct flac_encoder *encoder;
-
- encoder = g_new(struct flac_encoder, 1);
- encoder_struct_init(&encoder->encoder, &flac_encoder_plugin);
-
- /* load configuration from "param" */
- if (!flac_encoder_configure(encoder, param, error)) {
- /* configuration has failed, roll back and return error */
- g_free(encoder);
- return NULL;
- }
-
- return &encoder->encoder;
-}
-
-static void
-flac_encoder_finish(struct 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 */
- g_free(encoder);
-}
-
-static bool
-flac_encoder_setup(struct flac_encoder *encoder, unsigned bits_per_sample,
- GError **error)
-{
-#if !defined(FLAC_API_VERSION_CURRENT) || FLAC_API_VERSION_CURRENT <= 7
-#else
- if ( !FLAC__stream_encoder_set_compression_level(encoder->fse,
- encoder->compression)) {
- g_set_error(error, flac_encoder_quark(), 0,
- "error setting flac compression to %d",
- encoder->compression);
- return false;
- }
-#endif
- if ( !FLAC__stream_encoder_set_channels(encoder->fse,
- encoder->audio_format.channels)) {
- g_set_error(error, flac_encoder_quark(), 0,
- "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)) {
- g_set_error(error, flac_encoder_quark(), 0,
- "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)) {
- g_set_error(error, flac_encoder_quark(), 0,
- "error setting flac sample rate to %d",
- encoder->audio_format.sample_rate);
- return false;
- }
- return true;
-}
-
-static FLAC__StreamEncoderWriteStatus
-flac_write_callback(G_GNUC_UNUSED const FLAC__StreamEncoder *fse,
- const FLAC__byte data[],
-#if !defined(FLAC_API_VERSION_CURRENT) || FLAC_API_VERSION_CURRENT <= 7
- unsigned bytes,
-#else
- size_t bytes,
-#endif
- G_GNUC_UNUSED unsigned samples,
- G_GNUC_UNUSED unsigned current_frame, void *client_data)
-{
- struct flac_encoder *encoder = (struct flac_encoder *) client_data;
-
- //transfer data to buffer
- growing_fifo_append(&encoder->output_buffer, data, bytes);
-
- return FLAC__STREAM_ENCODER_WRITE_STATUS_OK;
-}
-
-static void
-flac_encoder_close(struct encoder *_encoder)
-{
- struct flac_encoder *encoder = (struct flac_encoder *)_encoder;
-
- FLAC__stream_encoder_delete(encoder->fse);
-
- pcm_buffer_deinit(&encoder->expand_buffer);
- fifo_buffer_free(encoder->output_buffer);
-}
-
-static bool
-flac_encoder_open(struct encoder *_encoder, struct audio_format *audio_format,
- GError **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 SAMPLE_FORMAT_S8:
- bits_per_sample = 8;
- break;
-
- case SAMPLE_FORMAT_S16:
- bits_per_sample = 16;
- break;
-
- case SAMPLE_FORMAT_S24_P32:
- bits_per_sample = 24;
- break;
-
- default:
- bits_per_sample = 24;
- audio_format->format = SAMPLE_FORMAT_S24_P32;
- }
-
- /* allocate the encoder */
- encoder->fse = FLAC__stream_encoder_new();
- if (encoder->fse == NULL) {
- g_set_error(error, flac_encoder_quark(), 0,
- "flac_new() failed");
- return false;
- }
-
- if (!flac_encoder_setup(encoder, bits_per_sample, error)) {
- FLAC__stream_encoder_delete(encoder->fse);
- return false;
- }
-
- pcm_buffer_init(&encoder->expand_buffer);
-
- encoder->output_buffer = growing_fifo_new();
-
- /* this immediately outputs data through callback */
-
-#if !defined(FLAC_API_VERSION_CURRENT) || FLAC_API_VERSION_CURRENT <= 7
- {
- FLAC__StreamEncoderState init_status;
-
- FLAC__stream_encoder_set_write_callback(encoder->fse,
- flac_write_callback);
-
- init_status = FLAC__stream_encoder_init(encoder->fse);
-
- if (init_status != FLAC__STREAM_ENCODER_OK) {
- g_set_error(error, flac_encoder_quark(), 0,
- "failed to initialize encoder: %s\n",
- FLAC__StreamEncoderStateString[init_status]);
- flac_encoder_close(_encoder);
- return false;
- }
- }
-#else
- {
- FLAC__StreamEncoderInitStatus init_status;
-
- init_status = FLAC__stream_encoder_init_stream(encoder->fse,
- flac_write_callback,
- NULL, NULL, NULL, encoder);
-
- if(init_status != FLAC__STREAM_ENCODER_INIT_STATUS_OK) {
- g_set_error(error, flac_encoder_quark(), 0,
- "failed to initialize encoder: %s\n",
- FLAC__StreamEncoderInitStatusString[init_status]);
- flac_encoder_close(_encoder);
- return false;
- }
- }
-#endif
-
- return true;
-}
-
-
-static bool
-flac_encoder_flush(struct encoder *_encoder, G_GNUC_UNUSED GError **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(struct encoder *_encoder,
- const void *data, size_t length,
- G_GNUC_UNUSED GError **error)
-{
- struct flac_encoder *encoder = (struct flac_encoder *)_encoder;
- unsigned num_frames, num_samples;
- void *exbuffer;
- const void *buffer = NULL;
-
- /* format conversion */
-
- num_frames = length / audio_format_frame_size(&encoder->audio_format);
- num_samples = num_frames * encoder->audio_format.channels;
-
- switch (encoder->audio_format.format) {
- case SAMPLE_FORMAT_S8:
- exbuffer = pcm_buffer_get(&encoder->expand_buffer, length*4);
- pcm8_to_flac(exbuffer, data, num_samples);
- buffer = exbuffer;
- break;
-
- case SAMPLE_FORMAT_S16:
- exbuffer = pcm_buffer_get(&encoder->expand_buffer, length*2);
- pcm16_to_flac(exbuffer, data, num_samples);
- buffer = exbuffer;
- break;
-
- case SAMPLE_FORMAT_S24_P32:
- case SAMPLE_FORMAT_S32:
- /* nothing need to be done; format is the same for
- both mpd and libFLAC */
- buffer = data;
- break;
- }
-
- /* feed samples to encoder */
-
- if (!FLAC__stream_encoder_process_interleaved(encoder->fse, buffer,
- num_frames)) {
- g_set_error(error, flac_encoder_quark(), 0,
- "flac encoder process failed");
- return false;
- }
-
- return true;
-}
-
-static size_t
-flac_encoder_read(struct encoder *_encoder, void *dest, size_t length)
-{
- struct flac_encoder *encoder = (struct flac_encoder *)_encoder;
-
- size_t max_length;
- const char *src = fifo_buffer_read(encoder->output_buffer,
- &max_length);
- if (src == NULL)
- return 0;
-
- if (length > max_length)
- length = max_length;
-
- memcpy(dest, src, length);
- fifo_buffer_consume(encoder->output_buffer, length);
- return length;
-}
-
-static const char *
-flac_encoder_get_mime_type(G_GNUC_UNUSED struct encoder *_encoder)
-{
- return "audio/flac";
-}
-
-const struct encoder_plugin flac_encoder_plugin = {
- .name = "flac",
- .init = flac_encoder_init,
- .finish = flac_encoder_finish,
- .open = flac_encoder_open,
- .close = flac_encoder_close,
- .end = flac_encoder_flush,
- .flush = flac_encoder_flush,
- .write = flac_encoder_write,
- .read = flac_encoder_read,
- .get_mime_type = flac_encoder_get_mime_type,
-};
-