/*
- * Copyright (C) 2004-2007 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2004-2011 Andre Noll <maan@systemlinux.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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ * Licensed under the GPL v2. For licencing details see COPYING.
*/
-/** \file ogg_afh.c para_server's ogg vorbis audio format handler */
-#include <inttypes.h>
-#include <ogg/ogg.h>
+/** \file ogg_afh.c Audio format handler for ogg/vorbis files. */
+
#include <vorbis/codec.h>
-#include <vorbis/vorbisfile.h>
+#include <regex.h>
-#include "server.cmdline.h"
-#include "server.h"
-#include "vss.h"
+#include "para.h"
#include "afh.h"
#include "error.h"
#include "string.h"
-#include "fd.h"
+#include "ogg_afh_common.h"
-/** must be big enough to hold header */
-#define CHUNK_SIZE 32768
-static double chunk_time = 0.25;
-
-static OggVorbis_File *oggvorbis_file;
-static FILE *infile;
-static int header_len, inbuf_size, vi_channels;
-static char *header, *inbuf;
-static ssize_t *chunk_table, max_chunk_len, num_chunks;
-static struct audio_format_handler *af;
-static long vi_sampling_rate, vi_bitrate, vi_bitrate_nominal;
-
-static int ogg_compute_header_len(void)
-{
- int ret, len, in = fileno(infile);
- unsigned int serial;
- char *buf;
- ogg_page page;
- ogg_packet packet;
- vorbis_comment vc;
+struct private_vorbis_data {
vorbis_info vi;
- ogg_stream_state *stream_in = para_malloc(sizeof(ogg_stream_state));
- ogg_stream_state *stream_out = para_malloc(sizeof(ogg_stream_state));
- ogg_sync_state *sync_in = para_malloc(sizeof(ogg_sync_state));
-
- ogg_sync_init(sync_in);
- vorbis_info_init(&vi);
- vorbis_comment_init(&vc);
- buf = ogg_sync_buffer(sync_in, CHUNK_SIZE);
- len = read(in, buf, CHUNK_SIZE);
- ret = -E_OGG_READ;
- if (len <= 0)
- goto err1;
- ogg_sync_wrote(sync_in, len);
- ret = -E_SYNC_PAGEOUT;
- if (ogg_sync_pageout(sync_in, &page) <= 0)
- goto err1;
- serial = ogg_page_serialno(&page);
- ogg_stream_init(stream_in, serial);
- ogg_stream_init(stream_out, serial);
- ret = ogg_stream_pagein(stream_in, &page);
- if (ret < 0) {
- ret = E_STREAM_PAGEIN;
- goto err2;
- }
- ret = ogg_stream_packetout(stream_in, &packet);
- if (ret != 1) {
- ret = -E_STREAM_PACKETOUT;
- goto err2;
- }
- ret = -E_VORBIS;
- if (vorbis_synthesis_headerin(&vi, &vc, &packet) < 0)
- goto err2;
- PARA_INFO_LOG("channels: %i, rate: %li\n", vi.channels, vi.rate);
- ogg_stream_packetin(stream_out, &packet);
-
- ret = ogg_sync_pageout(sync_in, &page);
- if (ret <= 0) {
- ret = -E_SYNC_PAGEOUT;
- goto err2;
- }
- ogg_stream_pagein(stream_in, &page);
- ogg_stream_packetout(stream_in, &packet);
- ogg_stream_packetin(stream_out, &packet);
-
- ret = ogg_sync_pageout(sync_in, &page);
- if (ret <= 0) {
- ret = -E_SYNC_PAGEOUT;
- goto err2;
- }
- ogg_stream_pagein(stream_in, &page);
- ogg_stream_packetout(stream_in, &packet);
- ogg_stream_packetin(stream_out, &packet);
-
- header_len = 0;
- while (ogg_stream_flush(stream_out, &page))
- header_len += page.body_len + page.header_len;
- ret = len;
- PARA_INFO_LOG("header_len = %d\n", header_len);
-err2:
- ogg_stream_destroy(stream_in);
- ogg_stream_destroy(stream_out);
-err1:
- ogg_sync_destroy(sync_in);
- vorbis_info_clear(&vi);
- vorbis_comment_clear(&vc);
- return ret;
-}
-
-static void tunetable(void)
-{
- int i = 1, j = -1, lp = 1;
- while (i < num_chunks) {
- if (chunk_table[i] == chunk_table[lp]) {
- i++;
- continue;
- }
- if (j < 0)
- tv_scale(i, &af->chunk_tv, &af->eof_tv);
- for (j = lp; j < i; j++)
- chunk_table[j] = chunk_table[i];
- lp = i;
- }
-#if 1
- for (i = 2; i < num_chunks; i++)
- if (chunk_table[i] != chunk_table[1])
- break;
- lp = i;
- for (i = 2; i < num_chunks - lp; i++)
- chunk_table[i] = chunk_table[i + lp];
-#endif
-}
-
-
-/*
- * Alloc and fill array table of byte offsets. chunk_table[i] is the
- * offset in the current infile at which the sample containing time i *
- * CHUNK_TIME begins.
- */
-static void ogg_compute_chunk_table(double time_total)
-{
- int i, ret, num;
- ssize_t pos = 0, min = 0, old_pos;
-
- old_pos = 0;
- ret = 0;
- num = time_total / chunk_time + 3;
- PARA_DEBUG_LOG("chunk time: %g allocating %d chunk pointers\n",
- chunk_time, num);
- chunk_table = para_malloc(num * sizeof(size_t));
- chunk_table[0] = 0;
- max_chunk_len = 0;
- rewind(infile);
- for (i = 1; ret == 0; i++) {
- ogg_int64_t diff;
- ret = ov_time_seek(oggvorbis_file, i * chunk_time);
- if (ret)
- break;
- pos = ov_raw_tell(oggvorbis_file);
- diff = pos - old_pos;
- max_chunk_len = PARA_MAX(max_chunk_len, diff);
- min = (i == 1)? diff : PARA_MIN(min, diff);
- chunk_table[i] = pos;
- if (i < 11 || !((i - 1) % 1000)|| i > num - 11)
- PARA_DEBUG_LOG("chunk #%d: %g secs, pos: %zd, "
- "size: %zd\n", i - 1,
- i * chunk_time, pos, pos - old_pos);
- old_pos = pos;
- }
- num_chunks = i - 1;
- chunk_table[i] = pos;
- tunetable();
- PARA_INFO_LOG("%zu chunks (%fs), max chunk: %zd, min chunk: %zd\n",
- num_chunks, chunk_time, max_chunk_len, min);
- rewind(infile);
-}
+ vorbis_comment vc;
+};
-static void ogg_close_audio_file(void)
+static int vorbis_packet_callback(ogg_packet *packet, int packet_num,
+ struct afh_info *afhi, void *private_data)
{
- if (oggvorbis_file) {
- PARA_DEBUG_LOG("%s", "ov_clear\n");
- ov_clear(oggvorbis_file);
- free(oggvorbis_file);
- oggvorbis_file = NULL;
+ struct private_vorbis_data *pvd = private_data;
+
+ if (vorbis_synthesis_headerin(&pvd->vi, &pvd->vc, packet) < 0)
+ return -E_VORBIS;
+ if (packet_num == 0) {
+ if (pvd->vi.rate == 0)
+ return -E_VORBIS;
+ afhi->channels = pvd->vi.channels;
+ afhi->frequency = pvd->vi.rate;
+ afhi->bitrate = pvd->vi.bitrate_nominal / 1000;
+ PARA_DEBUG_LOG("channels: %i, sampling rate: %i, bitrate: %i\n",
+ afhi->channels, afhi->frequency, afhi->bitrate);
+ return 1;
}
- free(header);
- header = NULL;
- header_len = 0;
- free(chunk_table);
- chunk_table = NULL;
- num_chunks = 0;
- free(inbuf);
- inbuf = NULL;
- inbuf_size = 0;
+ if (packet_num == 1)
+ return 1; /* we also want to have packet #2 */
+ afhi->tags.artist = para_strdup(vorbis_comment_query(&pvd->vc, "artist", 0));
+ afhi->tags.title = para_strdup(vorbis_comment_query(&pvd->vc, "title", 0));
+ afhi->tags.album = para_strdup(vorbis_comment_query(&pvd->vc, "album", 0));
+ afhi->tags.year = para_strdup(vorbis_comment_query(&pvd->vc, "year", 0));
+ afhi->tags.comment = para_strdup(vorbis_comment_query(&pvd->vc, "comment", 0));
+ return 0;
}
-static int ogg_save_header(FILE *file, int len)
+static int ogg_vorbis_get_file_info(char *map, size_t numbytes, __a_unused int fd,
+ struct afh_info *afhi)
{
int ret;
-
- header = para_malloc(len);
- rewind(file);
- ret = read(fileno(file), header, len);
- if (ret != len)
- return -E_OGG_READ;
- return 1;
-}
-
-/*
- * Init oggvorbis file and write some tech data to given pointers.
- */
-static int ogg_get_file_info(FILE *file, char *info_str, long unsigned *frames,
- int *seconds, size_t **vss_chunk_table)
-{
- int ret;
- double time_total;
- vorbis_info *vi;
- ogg_int64_t raw_total;
-
- infile = file;
- if (!file)
- return -E_OGG_NO_FILE;
- ret = ogg_compute_header_len();
- if (ret < 0)
- return ret;
- ret = ogg_save_header(file, header_len);
- if (ret < 0)
- return ret;
- rewind(file);
- oggvorbis_file = para_malloc(sizeof(OggVorbis_File));
- ret = ov_open(file, oggvorbis_file, NULL, 0);
- if (ret < 0) {
- free(oggvorbis_file);
- free(header);
- return -E_OGG_OPEN;
- }
- ret = -E_OGG_INFO;
- vi = ov_info(oggvorbis_file, 0);
- if (!vi)
- goto err;
- time_total = ov_time_total(oggvorbis_file, -1);
- raw_total = ov_raw_total(oggvorbis_file, -1);
- *seconds = time_total;
- vi_sampling_rate = vi->rate;
- vi_bitrate = ov_bitrate(oggvorbis_file, 0);
- vi_bitrate_nominal = vi->bitrate_nominal;
- vi_channels = vi->channels;
- ogg_compute_chunk_table(time_total);
- *frames = num_chunks;
- *vss_chunk_table = chunk_table;
- sprintf(info_str, "audio_file_info1:%zu x %lu, %ldkHz, %d channels, %ldkbps\n"
- "audio_file_info2: \n"
- "audio_file_info3: \n",
- num_chunks, (long unsigned) (chunk_time * 1000 * 1000),
- vi_sampling_rate / 1000, vi_channels, vi_bitrate / 1000
- );
- rewind(file);
- return 1;
-err:
- ogg_close_audio_file();
+ struct private_vorbis_data pvd;
+ struct ogg_afh_callback_info vorbis_callback_info = {
+ .packet_callback = vorbis_packet_callback,
+ .private_data = &pvd,
+ };
+
+ vorbis_info_init(&pvd.vi);
+ vorbis_comment_init(&pvd.vc);
+ ret = ogg_get_file_info(map, numbytes, afhi, &vorbis_callback_info);
+ vorbis_info_clear(&pvd.vi);
+ vorbis_comment_clear(&pvd.vc);
return ret;
}
-static char *ogg_get_header_info(int *len)
-{
- *len = header_len;
- return header;
-}
-
static const char* ogg_suffixes[] = {"ogg", NULL};
/**
- * the init function of the ogg vorbis audio format handler
+ * The init function of the ogg vorbis audio format handler.
*
- * \param p pointer to the struct to initialize
+ * \param afh Pointer to the struct to initialize.
*/
-void ogg_init(struct audio_format_handler *p)
+void ogg_init(struct audio_format_handler *afh)
{
- af = p;
- af->get_file_info = ogg_get_file_info,
- af->close_audio_file = ogg_close_audio_file;
- af->get_header_info = ogg_get_header_info;
- af->chunk_tv.tv_sec = 0;
- af->chunk_tv.tv_usec = 250 * 1000;
- tv_scale(3, &af->chunk_tv, &af->eof_tv);
- af->suffixes = ogg_suffixes;
+ afh->get_file_info = ogg_vorbis_get_file_info,
+ afh->suffixes = ogg_suffixes;
}
projects / paraslash.git / blobdiff