/*
- * Copyright (C) 2006 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2006-2007 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
#include "server.cmdline.h"
#include "server.h"
-#include "afs.h"
-#include "afh.h"
+#include "vss.h"
#include "error.h"
#include "string.h"
#include "aac.h"
#include "fd.h"
-/* must be big enough to hold header */
-#define DEFAULT_INBUF_SIZE 65536
+/** size of the input buffer, must be big enough to hold header */
+#define AAC_INBUF_SIZE 65536
static FILE *infile;
-static int inbuf_size;
-static unsigned char *inbuf;
-static size_t inbuf_len;
-struct audio_format_handler *af;
-static size_t num_chunks;
-static size_t entry;
-
-static size_t *chunk_table;
-NeAACDecHandle handle;
static void aac_close_audio_file(void)
{
return -E_STSZ;
}
-static int read_chunk_table(size_t skip)
+static int read_chunk_table(struct audio_format_info *afi, unsigned char *inbuf,
+ size_t inbuf_len, size_t skip)
{
int ret, i;
size_t sum = 0;
ret = aac_find_stsz(inbuf, inbuf_len, &skip);
if (ret >= 0)
break;
- ret = read(fileno(infile), inbuf, inbuf_size);
+ ret = read(fileno(infile), inbuf, AAC_INBUF_SIZE);
if (ret <= 0)
return -E_AAC_READ;
+ inbuf_len = ret;
PARA_INFO_LOG("next buffer: %d bytes\n", ret);
}
- num_chunks = ret;
- PARA_INFO_LOG("sz table has %zu entries\n", num_chunks);
- free(chunk_table);
- chunk_table = para_malloc(num_chunks * sizeof(size_t));
- for (i = 0; i < num_chunks; i++) {
+ afi->chunks_total = ret;
+ PARA_INFO_LOG("sz table has %lu entries\n", afi->chunks_total);
+ afi->chunk_table = para_malloc((afi->chunks_total + 1) * sizeof(size_t));
+ for (i = 1; i <= afi->chunks_total; i++) {
if (skip + 4 > inbuf_len) {
skip = inbuf_len - skip;
memmove(inbuf, inbuf + inbuf_len - skip, skip);
- ret = read(fileno(infile), inbuf + skip, inbuf_size - skip);
+ ret = read(fileno(infile), inbuf + skip,
+ AAC_INBUF_SIZE - skip);
if (ret <= 0)
return -E_AAC_READ;
inbuf_len = ret + skip;
PARA_INFO_LOG("next buffer: %zu bytes\n", inbuf_len);
}
sum += aac_read_int32(inbuf + skip);
- chunk_table[i] = sum;
+ afi->chunk_table[i] = sum;
skip += 4;
- if (i < 10 || i + 10 > num_chunks)
- PARA_DEBUG_LOG("offset #%d: %zu\n", i, chunk_table[i]);
+ if (i < 10 || i + 10 > afi->chunks_total)
+ PARA_DEBUG_LOG("offset #%d: %zu\n", i, afi->chunk_table[i]);
}
return 1;
}
-long unsigned aac_set_chunk_tv(mp4AudioSpecificConfig *mp4ASC)
+static long unsigned aac_set_chunk_tv(struct audio_format_info *afi,
+ mp4AudioSpecificConfig *mp4ASC)
{
float tmp = mp4ASC->sbr_present_flag == 1? 2047 : 1023,
- ms = 1000.0 * num_chunks * tmp / mp4ASC->samplingFrequency;
+ ms = 1000.0 * afi->chunks_total * tmp / mp4ASC->samplingFrequency;
struct timeval total;
ms2tv(ms, &total);
- tv_divide(num_chunks, &total, &af->chunk_tv);
- PARA_INFO_LOG("%luHz, %fs (%zd x %lums)\n",
+ tv_divide(afi->chunks_total, &total, &afi->chunk_tv);
+ PARA_INFO_LOG("%luHz, %fs (%lu x %lums)\n",
mp4ASC->samplingFrequency, ms / 1000,
- num_chunks, tv2ms(&af->chunk_tv));
+ afi->chunks_total, tv2ms(&afi->chunk_tv));
return ms / 1000;
}
/*
* Init m4a file and write some tech data to given pointers.
*/
-static int aac_get_file_info(FILE *file, char *info_str, long unsigned *frames,
- int *seconds)
+static int aac_get_file_info(FILE *file, struct audio_format_info *afi)
{
- int ret, decoder_len;
- size_t skip;
+ int i, ret, decoder_len;
+ size_t inbuf_len, skip;
unsigned long rate = 0;
- unsigned char channels = 0;
+ unsigned char channels = 0, *inbuf = para_malloc(AAC_INBUF_SIZE);
mp4AudioSpecificConfig mp4ASC;
+ NeAACDecHandle handle;
- free(inbuf);
- inbuf_size = DEFAULT_INBUF_SIZE;
- inbuf = para_malloc(inbuf_size);
infile = file;
-
- ret = read(fileno(infile), inbuf, inbuf_size);
- if (ret <= 0)
- return -E_AAC_READ;
+ ret = read(fileno(infile), inbuf, AAC_INBUF_SIZE);
+ if (ret <= 0) {
+ ret = -E_AAC_READ;
+ goto out;
+ }
inbuf_len = ret;
ret = aac_find_esds(inbuf, inbuf_len, &skip);
if (ret < 0)
- return ret;
+ goto out;
decoder_len = ret;
handle = aac_open();
- ret = NeAACDecInit(handle, inbuf + skip,
- decoder_len, &rate, &channels);
- if (ret < 0)
- return -E_AACDEC_INIT;
+ ret = NeAACDecInit(handle, inbuf + skip, decoder_len, &rate, &channels);
+ if (ret < 0) {
+ ret = -E_AACDEC_INIT;
+ goto out;
+ }
skip += ret;
PARA_INFO_LOG("rate: %lu, channels: %d\n", rate, channels);
- ret = NeAACDecAudioSpecificConfig(inbuf + skip, inbuf_len - skip,
- &mp4ASC);
- if (ret < 0)
- return -E_MP4ASC;
- ret = read_chunk_table(skip);
+ ret = -E_MP4ASC;
+ if (NeAACDecAudioSpecificConfig(inbuf + skip, inbuf_len - skip,
+ &mp4ASC) < 0)
+ goto out;
+ ret = read_chunk_table(afi, inbuf, inbuf_len, skip);
if (ret < 0)
- return ret;
- *frames = num_chunks;
- *seconds = aac_set_chunk_tv(&mp4ASC);
+ goto out;
+ afi->seconds_total = aac_set_chunk_tv(afi, &mp4ASC);
for (;;) {
ret = aac_find_entry_point(inbuf, inbuf_len, &skip);
if (ret >= 0)
break;
- ret = read(fileno(infile), inbuf, inbuf_size);
- if (ret <= 0)
- return -E_AAC_READ;
+ ret = read(fileno(infile), inbuf, AAC_INBUF_SIZE);
+ if (ret <= 0) {
+ ret = -E_AAC_READ;
+ goto out;
+ }
+ inbuf_len = ret;
PARA_INFO_LOG("next buffer: %d bytes\n", ret);
}
- entry = ret;
- sprintf(info_str, "audio_file_info1:%zu x %lums\n"
+ afi->chunk_table[0] = ret;
+ for (i = 1; i<= afi->chunks_total; i++)
+ afi->chunk_table[i] += ret;
+ sprintf(afi->info_string, "audio_file_info1:%lu x %lums\n"
"audio_file_info2:\n"
"audio_file_info3:\n",
- num_chunks,
- tv2ms(&af->chunk_tv));
- tv_scale(20, &af->chunk_tv, &af->eof_tv);
- return 1;
-}
-
-/*
- * nothing to do as we'll seek to the correct offset in aac read_chunk() anyway
- */
-static int aac_reposition_stream(__a_unused long unsigned request)
-{
- return 1;
-}
-
-static char *aac_read_chunk(long unsigned current_chunk, ssize_t *len)
-{
- int ret;
- size_t pos;
-
- *len = 0;
- if (current_chunk >= num_chunks)
- return NULL;
- if (!current_chunk) {
- *len = chunk_table[0];
- pos = entry;
- } else {
- *len = chunk_table[current_chunk] - chunk_table[current_chunk - 1];
- pos = entry + chunk_table[current_chunk - 1];
- }
- if (inbuf_size < *len) {
- inbuf = para_realloc(inbuf, *len);
- inbuf_size = *len;
- }
-// PARA_DEBUG_LOG("reading chunk #%lu@%zd (%zd bytes)\n", current_chunk,
-// pos, *len);
- ret = fseek(infile, pos, SEEK_SET);
- if (ret < 0)
- return NULL;
- ret = para_fread(inbuf, *len, 1, infile);
- if (ret != *len)
- return NULL;
-// PARA_DEBUG_LOG("ret: %d, inbuf[0]: %lx - %lx\n", ret, (long unsigned) inbuf[0],
-// (long unsigned) inbuf[4]);
- return (char *)inbuf;
+ afi->chunks_total,
+ tv2ms(&afi->chunk_tv));
+ tv_scale(20, &afi->chunk_tv, &afi->eof_tv);
+ ret = 1;
+out:
+ free(inbuf);
+ return ret;
}
static const char* aac_suffixes[] = {"m4a", "mp4", NULL};
/** the init function of the aac audio format handler */
void aac_afh_init(struct audio_format_handler *p)
{
- af = p;
- af->reposition_stream = aac_reposition_stream;
- af->get_file_info = aac_get_file_info,
- af->read_chunk = aac_read_chunk;
- af->close_audio_file = aac_close_audio_file;
- af->get_header_info = NULL;
- af->suffixes = aac_suffixes;
+ p->get_file_info = aac_get_file_info,
+ p->close_audio_file = aac_close_audio_file;
+ p->suffixes = aac_suffixes;
}
projects / paraslash.git / blobdiff