diff options
Diffstat (limited to 'src/plugin_xmms/plugin.c')
| -rw-r--r-- | src/plugin_xmms/plugin.c | 688 |
1 files changed, 0 insertions, 688 deletions
diff --git a/src/plugin_xmms/plugin.c b/src/plugin_xmms/plugin.c deleted file mode 100644 index a38ccf43..00000000 --- a/src/plugin_xmms/plugin.c +++ /dev/null @@ -1,688 +0,0 @@ -/* libxmms-flac - XMMS FLAC input plugin - * Copyright (C) 2000-2009 Josh Coalson - * Copyright (C) 2011-2022 Xiph.Org Foundation - * - * 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. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "plugin.h" - -#include <limits.h> -#include <pthread.h> -#include <stdlib.h> -#include <string.h> -#include <stdio.h> -#include <glib.h> -#include <pwd.h> -#include <sys/types.h> -#include <unistd.h> - -#include <xmms/plugin.h> -#include <xmms/util.h> -#include <xmms/configfile.h> -#include <xmms/titlestring.h> - -#ifdef HAVE_LANGINFO_CODESET -#include <langinfo.h> -#endif - -#include "FLAC/all.h" -#include "plugin_common/all.h" -#include "share/grabbag.h" -#include "share/replaygain_synthesis.h" -#include "configure.h" -#include "charset.h" -#include "http.h" -#include "tag.h" - -#ifdef min -#undef min -#endif -#define min(x,y) ((x)<(y)?(x):(y)) - -extern void FLAC_XMMS__file_info_box(char *filename); - -typedef struct { - FLAC__bool abort_flag; - FLAC__bool is_playing; - FLAC__bool is_http_source; - FLAC__bool eof; - FLAC__bool play_thread_open; /* if true, is_playing must also be true */ - FLAC__uint64 total_samples; - uint32_t bits_per_sample; - uint32_t channels; - uint32_t sample_rate; - int length_in_msec; /* int (instead of FLAC__uint64) only because that's what XMMS uses; seeking won't work right if this maxes out */ - gchar *title; - AFormat sample_format; - uint32_t sample_format_bytes_per_sample; - int seek_to_in_sec; - FLAC__bool has_replaygain; - double replay_scale; - DitherContext dither_context; -} stream_data_struct; - -static void FLAC_XMMS__init(void); -static int FLAC_XMMS__is_our_file(char *filename); -static void FLAC_XMMS__play_file(char *filename); -static void FLAC_XMMS__stop(void); -static void FLAC_XMMS__pause(short p); -static void FLAC_XMMS__seek(int time); -static int FLAC_XMMS__get_time(void); -static void FLAC_XMMS__cleanup(void); -static void FLAC_XMMS__get_song_info(char *filename, char **title, int *length); - -static void *play_loop_(void *arg); - -static FLAC__bool safe_decoder_init_(const char *filename, FLAC__StreamDecoder *decoder); -static void safe_decoder_finish_(FLAC__StreamDecoder *decoder); -static void safe_decoder_delete_(FLAC__StreamDecoder *decoder); - -static FLAC__StreamDecoderReadStatus http_read_callback_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data); -static FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data); -static void metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data); -static void error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data); - -InputPlugin flac_ip = -{ - NULL, - NULL, - "FLAC Player v" VERSION, - FLAC_XMMS__init, - FLAC_XMMS__aboutbox, - FLAC_XMMS__configure, - FLAC_XMMS__is_our_file, - NULL, - FLAC_XMMS__play_file, - FLAC_XMMS__stop, - FLAC_XMMS__pause, - FLAC_XMMS__seek, - NULL, - FLAC_XMMS__get_time, - NULL, - NULL, - FLAC_XMMS__cleanup, - NULL, - NULL, - NULL, - NULL, - FLAC_XMMS__get_song_info, - FLAC_XMMS__file_info_box, - NULL -}; - -#define SAMPLES_PER_WRITE 512 -#define SAMPLE_BUFFER_SIZE ((FLAC__MAX_BLOCK_SIZE + SAMPLES_PER_WRITE) * FLAC_PLUGIN__MAX_SUPPORTED_CHANNELS * (24/8)) -static FLAC__byte sample_buffer_[SAMPLE_BUFFER_SIZE]; -static uint32_t sample_buffer_first_, sample_buffer_last_; - -static FLAC__StreamDecoder *decoder_ = 0; -static stream_data_struct stream_data_; -static pthread_t decode_thread_; -static FLAC__bool audio_error_ = false; -static FLAC__bool is_big_endian_host_; - -#define BITRATE_HIST_SEGMENT_MSEC 500 -/* 500ms * 50 = 25s should be enough */ -#define BITRATE_HIST_SIZE 50 -static uint32_t bitrate_history_[BITRATE_HIST_SIZE]; - - -FLAC_API InputPlugin *get_iplugin_info(void) -{ - flac_ip.description = g_strdup_printf("Reference FLAC Player v%s", FLAC__VERSION_STRING); - return &flac_ip; -} - -void set_track_info(const char* title, int length_in_msec) -{ - if (stream_data_.is_playing) { - flac_ip.set_info((char*) title, length_in_msec, stream_data_.sample_rate * stream_data_.channels * stream_data_.bits_per_sample, stream_data_.sample_rate, stream_data_.channels); - } -} - -static gchar* homedir(void) -{ - gchar *result; - char *env_home = getenv("HOME"); - if (env_home) { - result = g_strdup (env_home); - } else { - uid_t uid = getuid(); - struct passwd *pwent; - do { - pwent = getpwent(); - } while (pwent && pwent->pw_uid != uid); - result = pwent ? g_strdup (pwent->pw_dir) : NULL; - endpwent(); - } - return result; -} - -static FLAC__bool is_http_source(const char *source) -{ - return 0 == strncasecmp(source, "http://", 7); -} - -void FLAC_XMMS__init(void) -{ - ConfigFile *cfg; - FLAC__uint32 test = 1; - - is_big_endian_host_ = (*((FLAC__byte*)(&test)))? false : true; - - flac_cfg.title.tag_override = FALSE; - if (flac_cfg.title.tag_format) - g_free(flac_cfg.title.tag_format); - flac_cfg.title.convert_char_set = FALSE; - - cfg = xmms_cfg_open_default_file(); - - /* title */ - - xmms_cfg_read_boolean(cfg, "flac", "title.tag_override", &flac_cfg.title.tag_override); - - if(!xmms_cfg_read_string(cfg, "flac", "title.tag_format", &flac_cfg.title.tag_format)) - flac_cfg.title.tag_format = g_strdup("%p - %t"); - - xmms_cfg_read_boolean(cfg, "flac", "title.convert_char_set", &flac_cfg.title.convert_char_set); - - if(!xmms_cfg_read_string(cfg, "flac", "title.user_char_set", &flac_cfg.title.user_char_set)) - flac_cfg.title.user_char_set = FLAC_plugin__charset_get_current(); - - /* replaygain */ - - xmms_cfg_read_boolean(cfg, "flac", "output.replaygain.enable", &flac_cfg.output.replaygain.enable); - - xmms_cfg_read_boolean(cfg, "flac", "output.replaygain.album_mode", &flac_cfg.output.replaygain.album_mode); - - if(!xmms_cfg_read_int(cfg, "flac", "output.replaygain.preamp", &flac_cfg.output.replaygain.preamp)) - flac_cfg.output.replaygain.preamp = 0; - - xmms_cfg_read_boolean(cfg, "flac", "output.replaygain.hard_limit", &flac_cfg.output.replaygain.hard_limit); - - xmms_cfg_read_boolean(cfg, "flac", "output.resolution.normal.dither_24_to_16", &flac_cfg.output.resolution.normal.dither_24_to_16); - xmms_cfg_read_boolean(cfg, "flac", "output.resolution.replaygain.dither", &flac_cfg.output.resolution.replaygain.dither); - - if(!xmms_cfg_read_int(cfg, "flac", "output.resolution.replaygain.noise_shaping", &flac_cfg.output.resolution.replaygain.noise_shaping)) - flac_cfg.output.resolution.replaygain.noise_shaping = 1; - - if(!xmms_cfg_read_int(cfg, "flac", "output.resolution.replaygain.bps_out", &flac_cfg.output.resolution.replaygain.bps_out)) - flac_cfg.output.resolution.replaygain.bps_out = 16; - - /* stream */ - - xmms_cfg_read_int(cfg, "flac", "stream.http_buffer_size", &flac_cfg.stream.http_buffer_size); - xmms_cfg_read_int(cfg, "flac", "stream.http_prebuffer", &flac_cfg.stream.http_prebuffer); - xmms_cfg_read_boolean(cfg, "flac", "stream.use_proxy", &flac_cfg.stream.use_proxy); - if(flac_cfg.stream.proxy_host) - g_free(flac_cfg.stream.proxy_host); - if(!xmms_cfg_read_string(cfg, "flac", "stream.proxy_host", &flac_cfg.stream.proxy_host)) - flac_cfg.stream.proxy_host = g_strdup(""); - xmms_cfg_read_int(cfg, "flac", "stream.proxy_port", &flac_cfg.stream.proxy_port); - xmms_cfg_read_boolean(cfg, "flac", "stream.proxy_use_auth", &flac_cfg.stream.proxy_use_auth); - if(flac_cfg.stream.proxy_user) - g_free(flac_cfg.stream.proxy_user); - flac_cfg.stream.proxy_user = NULL; - xmms_cfg_read_string(cfg, "flac", "stream.proxy_user", &flac_cfg.stream.proxy_user); - if(flac_cfg.stream.proxy_pass) - g_free(flac_cfg.stream.proxy_pass); - flac_cfg.stream.proxy_pass = NULL; - xmms_cfg_read_string(cfg, "flac", "stream.proxy_pass", &flac_cfg.stream.proxy_pass); - xmms_cfg_read_boolean(cfg, "flac", "stream.save_http_stream", &flac_cfg.stream.save_http_stream); - if (flac_cfg.stream.save_http_path) - g_free (flac_cfg.stream.save_http_path); - if (!xmms_cfg_read_string(cfg, "flac", "stream.save_http_path", &flac_cfg.stream.save_http_path) || ! *flac_cfg.stream.save_http_path) { - if (flac_cfg.stream.save_http_path) - g_free (flac_cfg.stream.save_http_path); - flac_cfg.stream.save_http_path = homedir(); - } - xmms_cfg_read_boolean(cfg, "flac", "stream.cast_title_streaming", &flac_cfg.stream.cast_title_streaming); - xmms_cfg_read_boolean(cfg, "flac", "stream.use_udp_channel", &flac_cfg.stream.use_udp_channel); - - decoder_ = FLAC__stream_decoder_new(); - - xmms_cfg_free(cfg); -} - -int FLAC_XMMS__is_our_file(char *filename) -{ - char *ext; - - ext = strrchr(filename, '.'); - if(ext) - if(!strcasecmp(ext, ".flac") || !strcasecmp(ext, ".fla")) - return 1; - return 0; -} - -void FLAC_XMMS__play_file(char *filename) -{ - FILE *f; - - sample_buffer_first_ = sample_buffer_last_ = 0; - audio_error_ = false; - stream_data_.abort_flag = false; - stream_data_.is_playing = false; - stream_data_.is_http_source = is_http_source(filename); - stream_data_.eof = false; - stream_data_.play_thread_open = false; - stream_data_.has_replaygain = false; - - if(!is_http_source(filename)) { - if(0 == (f = fopen(filename, "r"))) - return; - fclose(f); - } - - if(decoder_ == 0) - return; - - if(!safe_decoder_init_(filename, decoder_)) - return; - - if(stream_data_.has_replaygain && flac_cfg.output.replaygain.enable) { - if(flac_cfg.output.resolution.replaygain.bps_out == 8) { - stream_data_.sample_format = FMT_U8; - stream_data_.sample_format_bytes_per_sample = 1; - } - else if(flac_cfg.output.resolution.replaygain.bps_out == 16) { - stream_data_.sample_format = (is_big_endian_host_) ? FMT_S16_BE : FMT_S16_LE; - stream_data_.sample_format_bytes_per_sample = 2; - } - else { - /*@@@ need some error here like wa2: MessageBox(mod_.hMainWindow, "ERROR: plugin can only handle 8/16-bit samples\n", "ERROR: plugin can only handle 8/16-bit samples", 0); */ - fprintf(stderr, "libxmms-flac: can't handle %d bit output\n", flac_cfg.output.resolution.replaygain.bps_out); - safe_decoder_finish_(decoder_); - return; - } - } - else { - if(stream_data_.bits_per_sample == 8) { - stream_data_.sample_format = FMT_U8; - stream_data_.sample_format_bytes_per_sample = 1; - } - else if(stream_data_.bits_per_sample == 16 || (stream_data_.bits_per_sample == 24 && flac_cfg.output.resolution.normal.dither_24_to_16)) { - stream_data_.sample_format = (is_big_endian_host_) ? FMT_S16_BE : FMT_S16_LE; - stream_data_.sample_format_bytes_per_sample = 2; - } - else { - /*@@@ need some error here like wa2: MessageBox(mod_.hMainWindow, "ERROR: plugin can only handle 8/16-bit samples\n", "ERROR: plugin can only handle 8/16-bit samples", 0); */ - fprintf(stderr, "libxmms-flac: can't handle %u bit output\n", stream_data_.bits_per_sample); - safe_decoder_finish_(decoder_); - return; - } - } - FLAC__replaygain_synthesis__init_dither_context(&stream_data_.dither_context, stream_data_.sample_format_bytes_per_sample * 8, flac_cfg.output.resolution.replaygain.noise_shaping); - stream_data_.is_playing = true; - - if(flac_ip.output->open_audio(stream_data_.sample_format, stream_data_.sample_rate, stream_data_.channels) == 0) { - audio_error_ = true; - safe_decoder_finish_(decoder_); - return; - } - - stream_data_.title = flac_format_song_title(filename); - flac_ip.set_info(stream_data_.title, stream_data_.length_in_msec, stream_data_.sample_rate * stream_data_.channels * stream_data_.bits_per_sample, stream_data_.sample_rate, stream_data_.channels); - - stream_data_.seek_to_in_sec = -1; - stream_data_.play_thread_open = true; - pthread_create(&decode_thread_, NULL, play_loop_, NULL); -} - -void FLAC_XMMS__stop(void) -{ - if(stream_data_.is_playing) { - stream_data_.is_playing = false; - if(stream_data_.play_thread_open) { - stream_data_.play_thread_open = false; - pthread_join(decode_thread_, NULL); - } - flac_ip.output->close_audio(); - safe_decoder_finish_(decoder_); - } -} - -void FLAC_XMMS__pause(short p) -{ - flac_ip.output->pause(p); -} - -void FLAC_XMMS__seek(int time) -{ - if(!stream_data_.is_http_source) { - stream_data_.seek_to_in_sec = time; - stream_data_.eof = false; - - while(stream_data_.seek_to_in_sec != -1) - xmms_usleep(10000); - } -} - -int FLAC_XMMS__get_time(void) -{ - if(audio_error_) - return -2; - if(!stream_data_.is_playing || (stream_data_.eof && !flac_ip.output->buffer_playing())) - return -1; - else - return flac_ip.output->output_time(); -} - -void FLAC_XMMS__cleanup(void) -{ - safe_decoder_delete_(decoder_); - decoder_ = 0; -} - -void FLAC_XMMS__get_song_info(char *filename, char **title, int *length_in_msec) -{ - FLAC__StreamMetadata streaminfo; - - if(0 == filename) - filename = ""; - - if(!FLAC__metadata_get_streaminfo(filename, &streaminfo)) { - /* @@@ how to report the error? */ - if(title) { - if (!is_http_source(filename)) { - static const char *errtitle = "Invalid FLAC File: "; - if(strlen(errtitle) + 1 + strlen(filename) + 1 + 1 < strlen(filename)) { /* overflow check */ - *title = NULL; - } - else { - size_t len = strlen(errtitle) + 1 + strlen(filename) + 1 + 1; - *title = g_malloc(len); - flac_snprintf(*title, len, "%s\"%s\"", errtitle, filename); - } - } else { - *title = NULL; - } - } - if(length_in_msec) - *length_in_msec = -1; - return; - } - - if(title) { - *title = flac_format_song_title(filename); - } - if(length_in_msec) { - FLAC__uint64 l = (FLAC__uint64)((double)streaminfo.data.stream_info.total_samples / (double)streaminfo.data.stream_info.sample_rate * 1000.0 + 0.5); - if (l > INT_MAX) - l = INT_MAX; - *length_in_msec = (int)l; - } -} - -/*********************************************************************** - * local routines - **********************************************************************/ - -void *play_loop_(void *arg) -{ - uint32_t written_time_last = 0, bh_index_last_w = 0, bh_index_last_o = BITRATE_HIST_SIZE, blocksize = 1; - FLAC__uint64 decode_position_last = 0, decode_position_frame_last = 0, decode_position_frame = 0; - - (void)arg; - - while(stream_data_.is_playing) { - if(!stream_data_.eof) { - while(sample_buffer_last_ - sample_buffer_first_ < SAMPLES_PER_WRITE) { - uint32_t s; - - s = sample_buffer_last_ - sample_buffer_first_; - if(FLAC__stream_decoder_get_state(decoder_) == FLAC__STREAM_DECODER_END_OF_STREAM) { - stream_data_.eof = true; - break; - } - else if(!FLAC__stream_decoder_process_single(decoder_)) { - /*@@@ this should probably be a dialog */ - fprintf(stderr, "libxmms-flac: READ ERROR processing frame\n"); - stream_data_.eof = true; - break; - } - blocksize = sample_buffer_last_ - sample_buffer_first_ - s; - decode_position_frame_last = decode_position_frame; - if(stream_data_.is_http_source || !FLAC__stream_decoder_get_decode_position(decoder_, &decode_position_frame)) - decode_position_frame = 0; - } - if(sample_buffer_last_ - sample_buffer_first_ > 0) { - const uint32_t n = min(sample_buffer_last_ - sample_buffer_first_, SAMPLES_PER_WRITE); - int bytes = n * stream_data_.channels * stream_data_.sample_format_bytes_per_sample; - FLAC__byte *sample_buffer_start = sample_buffer_ + sample_buffer_first_ * stream_data_.channels * stream_data_.sample_format_bytes_per_sample; - uint32_t written_time, bh_index_w; - FLAC__uint64 decode_position; - - sample_buffer_first_ += n; - flac_ip.add_vis_pcm(flac_ip.output->written_time(), stream_data_.sample_format, stream_data_.channels, bytes, sample_buffer_start); - while(flac_ip.output->buffer_free() < (int)bytes && stream_data_.is_playing && stream_data_.seek_to_in_sec == -1) - xmms_usleep(10000); - if(stream_data_.is_playing && stream_data_.seek_to_in_sec == -1) - flac_ip.output->write_audio(sample_buffer_start, bytes); - - /* compute current bitrate */ - - written_time = flac_ip.output->written_time(); - bh_index_w = written_time / BITRATE_HIST_SEGMENT_MSEC % BITRATE_HIST_SIZE; - if(bh_index_w != bh_index_last_w) { - bh_index_last_w = bh_index_w; - decode_position = decode_position_frame - (double)(sample_buffer_last_ - sample_buffer_first_) * (double)(decode_position_frame - decode_position_frame_last) / (double)blocksize; - bitrate_history_[(bh_index_w + BITRATE_HIST_SIZE - 1) % BITRATE_HIST_SIZE] = - decode_position > decode_position_last && written_time > written_time_last ? - 8000 * (decode_position - decode_position_last) / (written_time - written_time_last) : - stream_data_.sample_rate * stream_data_.channels * stream_data_.bits_per_sample; - decode_position_last = decode_position; - written_time_last = written_time; - } - } - else { - stream_data_.eof = true; - xmms_usleep(10000); - } - } - else - xmms_usleep(10000); - if(!stream_data_.is_http_source && stream_data_.seek_to_in_sec != -1) { - const double distance = (double)stream_data_.seek_to_in_sec * 1000.0 / (double)stream_data_.length_in_msec; - FLAC__uint64 target_sample = (FLAC__uint64)(distance * (double)stream_data_.total_samples); - if(stream_data_.total_samples > 0 && target_sample >= stream_data_.total_samples) - target_sample = stream_data_.total_samples - 1; - if(FLAC__stream_decoder_seek_absolute(decoder_, target_sample)) { - flac_ip.output->flush(stream_data_.seek_to_in_sec * 1000); - bh_index_last_w = bh_index_last_o = flac_ip.output->output_time() / BITRATE_HIST_SEGMENT_MSEC % BITRATE_HIST_SIZE; - if(!FLAC__stream_decoder_get_decode_position(decoder_, &decode_position_frame)) - decode_position_frame = 0; - stream_data_.eof = false; - sample_buffer_first_ = sample_buffer_last_ = 0; - } - else if(FLAC__stream_decoder_get_state(decoder_) == FLAC__STREAM_DECODER_SEEK_ERROR) { - /*@@@ this should probably be a dialog */ - fprintf(stderr, "libxmms-flac: SEEK ERROR\n"); - FLAC__stream_decoder_flush(decoder_); - stream_data_.eof = false; - sample_buffer_first_ = sample_buffer_last_ = 0; - } - stream_data_.seek_to_in_sec = -1; - } - else { - /* display the right bitrate from history */ - uint32_t bh_index_o = flac_ip.output->output_time() / BITRATE_HIST_SEGMENT_MSEC % BITRATE_HIST_SIZE; - if(bh_index_o != bh_index_last_o && bh_index_o != bh_index_last_w && bh_index_o != (bh_index_last_w + 1) % BITRATE_HIST_SIZE) { - bh_index_last_o = bh_index_o; - flac_ip.set_info(stream_data_.title, stream_data_.length_in_msec, bitrate_history_[bh_index_o], stream_data_.sample_rate, stream_data_.channels); - } - } - } - - safe_decoder_finish_(decoder_); - - /* are these two calls necessary? */ - flac_ip.output->buffer_free(); - flac_ip.output->buffer_free(); - - g_free(stream_data_.title); - - pthread_exit(NULL); - return 0; /* to silence the compiler warning about not returning a value */ -} - -FLAC__bool safe_decoder_init_(const char *filename, FLAC__StreamDecoder *decoder) -{ - if(decoder == 0) - return false; - - safe_decoder_finish_(decoder); - - FLAC__stream_decoder_set_md5_checking(decoder, false); - FLAC__stream_decoder_set_metadata_ignore_all(decoder); - FLAC__stream_decoder_set_metadata_respond(decoder, FLAC__METADATA_TYPE_STREAMINFO); - FLAC__stream_decoder_set_metadata_respond(decoder, FLAC__METADATA_TYPE_VORBIS_COMMENT); - if(stream_data_.is_http_source) { - flac_http_open(filename, 0); - if(FLAC__stream_decoder_init_stream(decoder, http_read_callback_, /*seek_callback=*/0, /*tell_callback=*/0, /*length_callback=*/0, /*eof_callback=*/0, write_callback_, metadata_callback_, error_callback_, /*client_data=*/&stream_data_) != FLAC__STREAM_DECODER_INIT_STATUS_OK) - return false; - } - else { - if(FLAC__stream_decoder_init_file(decoder, filename, write_callback_, metadata_callback_, error_callback_, /*client_data=*/&stream_data_) != FLAC__STREAM_DECODER_INIT_STATUS_OK) - return false; - } - - if(!FLAC__stream_decoder_process_until_end_of_metadata(decoder)) - return false; - - return true; -} - -void safe_decoder_finish_(FLAC__StreamDecoder *decoder) -{ - if(decoder && FLAC__stream_decoder_get_state(decoder) != FLAC__STREAM_DECODER_UNINITIALIZED) - (void)FLAC__stream_decoder_finish(decoder); - if(stream_data_.is_http_source) - flac_http_close(); -} - -void safe_decoder_delete_(FLAC__StreamDecoder *decoder) -{ - if(decoder) { - safe_decoder_finish_(decoder); - FLAC__stream_decoder_delete(decoder); - } -} - -FLAC__StreamDecoderReadStatus http_read_callback_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data) -{ - (void)decoder; - (void)client_data; - *bytes = flac_http_read(buffer, *bytes); - return *bytes ? FLAC__STREAM_DECODER_READ_STATUS_CONTINUE : FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM; -} - -FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data) -{ - stream_data_struct *stream_data = (stream_data_struct *)client_data; - const uint32_t channels = stream_data->channels, wide_samples = frame->header.blocksize; - const uint32_t bits_per_sample = stream_data->bits_per_sample; - FLAC__byte *sample_buffer_start; - - (void)decoder; - - if(stream_data->abort_flag) - return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; - - if((sample_buffer_last_ + wide_samples) > (SAMPLE_BUFFER_SIZE / (channels * stream_data->sample_format_bytes_per_sample))) { - memmove(sample_buffer_, sample_buffer_ + sample_buffer_first_ * channels * stream_data->sample_format_bytes_per_sample, (sample_buffer_last_ - sample_buffer_first_) * channels * stream_data->sample_format_bytes_per_sample); - sample_buffer_last_ -= sample_buffer_first_; - sample_buffer_first_ = 0; - } - sample_buffer_start = sample_buffer_ + sample_buffer_last_ * channels * stream_data->sample_format_bytes_per_sample; - if(stream_data->has_replaygain && flac_cfg.output.replaygain.enable) { - FLAC__replaygain_synthesis__apply_gain( - sample_buffer_start, - !is_big_endian_host_, - stream_data->sample_format_bytes_per_sample == 1, /* uint32_t_data_out */ - buffer, - wide_samples, - channels, - bits_per_sample, - stream_data->sample_format_bytes_per_sample * 8, - stream_data->replay_scale, - flac_cfg.output.replaygain.hard_limit, - flac_cfg.output.resolution.replaygain.dither, - &stream_data->dither_context - ); - } - else if(is_big_endian_host_) { - FLAC__plugin_common__pack_pcm_signed_big_endian( - sample_buffer_start, - buffer, - wide_samples, - channels, - bits_per_sample, - stream_data->sample_format_bytes_per_sample * 8 - ); - } - else { - FLAC__plugin_common__pack_pcm_signed_little_endian( - sample_buffer_start, - buffer, - wide_samples, - channels, - bits_per_sample, - stream_data->sample_format_bytes_per_sample * 8 - ); - } - - sample_buffer_last_ += wide_samples; - - return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE; -} - -void metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data) -{ - stream_data_struct *stream_data = (stream_data_struct *)client_data; - (void)decoder; - if(metadata->type == FLAC__METADATA_TYPE_STREAMINFO) { - stream_data->total_samples = metadata->data.stream_info.total_samples; - stream_data->bits_per_sample = metadata->data.stream_info.bits_per_sample; - stream_data->channels = metadata->data.stream_info.channels; - stream_data->sample_rate = metadata->data.stream_info.sample_rate; - { - FLAC__uint64 l = (FLAC__uint64)((double)stream_data->total_samples / (double)stream_data->sample_rate * 1000.0 + 0.5); - if (l > INT_MAX) - l = INT_MAX; - stream_data->length_in_msec = (int)l; - } - } - else if(metadata->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) { - double reference, gain, peak; - if(grabbag__replaygain_load_from_vorbiscomment(metadata, flac_cfg.output.replaygain.album_mode, /*strict=*/false, &reference, &gain, &peak)) { - stream_data->has_replaygain = true; - stream_data->replay_scale = grabbag__replaygain_compute_scale_factor(peak, gain, (double)flac_cfg.output.replaygain.preamp, /*prevent_clipping=*/!flac_cfg.output.replaygain.hard_limit); - } - } -} - -void error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data) -{ - stream_data_struct *stream_data = (stream_data_struct *)client_data; - (void)decoder; - if(status != FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC) - stream_data->abort_flag = true; -} |