/*
- * Copyright (C) 2006-2011 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2006 Andre Noll <maan@tuebingen.mpg.de>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
* Ahead Software AG
*/
-/** \file aac_afh.c para_server's aac audio format handler */
+/** \file aac_afh.c para_server's aac audio format handler. */
#include <regex.h>
+#include <mp4v2/mp4v2.h>
#include "para.h"
#include "error.h"
#include "afh.h"
#include "string.h"
#include "aac.h"
+#include "fd.h"
-static int aac_find_stsz(unsigned char *buf, size_t buflen, off_t *skip)
+static int aac_find_stsz(char *buf, size_t buflen, off_t *skip)
{
int i;
for (i = 0; i + 16 < buflen; i++) {
- unsigned char *p = buf + i;
+ char *p = buf + i;
unsigned sample_count, sample_size;
if (p[0] != 's' || p[1] != 't' || p[2] != 's' || p[3] != 'z')
return -E_STSZ;
}
-static int atom_cmp(const unsigned char *buf1, const char *buf2)
+static int atom_cmp(const char *buf1, const char *buf2)
{
- const unsigned char *b2 = (unsigned char *)buf2;
-
- if (buf1[0] != b2[0])
- return 1;
- if (buf1[1] != b2[1])
- return 1;
- if (buf1[2] != b2[2])
- return 1;
- if (buf1[3] != b2[3])
- return 1;
- return 0;
+ return memcmp(buf1, buf2, 4)? 1 : 0;
}
-static int read_atom_header(unsigned char *buf, uint64_t *subsize, unsigned char type[5])
+static int read_atom_header(char *buf, uint64_t *subsize, char type[5])
{
int i;
- uint64_t size = (buf[0] << 24) + (buf[1] << 16) + (buf[2] << 8) + buf[3];
+ uint64_t size = aac_read_int32(buf);
memcpy(type, buf + 4, 4);
type[4] = '\0';
return 16;
}
-static char *get_tag(unsigned char *p, int size)
+static char *get_tag(char *p, int size)
{
char *buf;
return buf;
}
-static void read_tags(unsigned char *buf, size_t buflen, struct afh_info *afhi)
+static void read_tags(char *buf, size_t buflen, struct afh_info *afhi)
{
- unsigned char *p = buf;
+ char *p = buf;
while (p + 32 < buf + buflen) {
- unsigned char *q, type1[5], type2[5];
+ char *q, type1[5], type2[5];
uint64_t size1, size2;
int ret, ret2;
q = p + ret + ret2 + 8;
if (q + size2 > buf + buflen)
break;
- if (!atom_cmp(type1, "©ART"))
+ if (!atom_cmp(type1, "\xa9" "ART"))
afhi->tags.artist = get_tag(q, size2);
- else if (!atom_cmp(type1, "©alb"))
+ else if (!atom_cmp(type1, "\xa9" "alb"))
afhi->tags.album = get_tag(q, size2);
- else if (!atom_cmp(type1, "©nam"))
+ else if (!atom_cmp(type1, "\xa9" "nam"))
afhi->tags.title = get_tag(q, size2);
- else if (!atom_cmp(type1, "©cmt"))
+ else if (!atom_cmp(type1, "\xa9" "cmt"))
afhi->tags.comment = get_tag(q, size2);
- else if (!atom_cmp(type1, "©day"))
+ else if (!atom_cmp(type1, "\xa9" "day"))
afhi->tags.year = get_tag(q, size2);
p += size1;
}
}
-static void read_meta(unsigned char *buf, size_t buflen, struct afh_info *afhi)
+static void read_meta(char *buf, size_t buflen, struct afh_info *afhi)
{
- unsigned char *p = buf;
+ char *p = buf;
while (p + 4 < buf + buflen) {
}
}
-static void aac_get_taginfo(unsigned char *buf, size_t buflen,
- struct afh_info *afhi)
+static void aac_get_taginfo(char *buf, size_t buflen, struct afh_info *afhi)
{
int i;
uint64_t subsize;
- unsigned char type[5];
+ char type[5];
for (i = 0; i + 24 < buflen; i++) {
- unsigned char *p = buf + i;
+ char *p = buf + i;
if (p[0] != 'm' || p[1] != 'e' || p[2] != 't' || p[3] != 'a')
continue;
PARA_INFO_LOG("found metadata at offset %d\n", i);
}
static ssize_t aac_compute_chunk_table(struct afh_info *afhi,
- unsigned char *map, size_t numbytes)
+ char *map, size_t numbytes)
{
int ret, i;
size_t sum = 0;
if (ret < 0)
return ret;
afhi->chunks_total = ret;
- PARA_DEBUG_LOG("sz table has %lu entries\n", afhi->chunks_total);
+ PARA_DEBUG_LOG("sz table has %" PRIu32 " entries\n", afhi->chunks_total);
afhi->chunk_table = para_malloc((afhi->chunks_total + 1) * sizeof(size_t));
for (i = 1; i <= afhi->chunks_total; i++) {
if (skip + 4 > numbytes)
}
static int aac_set_chunk_tv(struct afh_info *afhi,
- mp4AudioSpecificConfig *mp4ASC, long unsigned *seconds)
+ mp4AudioSpecificConfig *mp4ASC, uint32_t *seconds)
{
float tmp = mp4ASC->sbr_present_flag == 1? 2047 : 1023;
struct timeval total;
ms = 1000.0 * afhi->chunks_total * tmp / mp4ASC->samplingFrequency;
ms2tv(ms, &total);
tv_divide(afhi->chunks_total, &total, &afhi->chunk_tv);
- PARA_INFO_LOG("%luHz, %lus (%lu x %lums)\n",
+ PARA_INFO_LOG("%luHz, %lus (%" PRIu32 " x %lums)\n",
mp4ASC->samplingFrequency, ms / 1000,
afhi->chunks_total, tv2ms(&afhi->chunk_tv));
if (ms < 1000)
unsigned char channels = 0;
mp4AudioSpecificConfig mp4ASC;
NeAACDecHandle handle = NULL;
- unsigned char *umap = (unsigned char *) map;
- ret = aac_find_esds(umap, numbytes, &skip, &decoder_len);
+ ret = aac_find_esds(map, numbytes, &skip, &decoder_len);
if (ret < 0)
goto out;
- aac_get_taginfo(umap, numbytes, afhi);
+ aac_get_taginfo(map, numbytes, afhi);
handle = aac_open();
ret = -E_AAC_AFH_INIT;
- if (NeAACDecInit(handle, umap + skip, decoder_len, &rate, &channels))
+ if (NeAACDecInit(handle, (unsigned char *)map + skip, decoder_len,
+ &rate, &channels))
goto out;
if (!channels)
goto out;
PARA_DEBUG_LOG("rate: %lu, channels: %d\n", rate, channels);
ret = -E_MP4ASC;
- if (NeAACDecAudioSpecificConfig(umap + skip, numbytes - skip, &mp4ASC))
+ if (NeAACDecAudioSpecificConfig((unsigned char *)map + skip,
+ numbytes - skip, &mp4ASC))
goto out;
if (!mp4ASC.samplingFrequency)
goto out;
- ret = aac_compute_chunk_table(afhi, umap, numbytes);
+ ret = aac_compute_chunk_table(afhi, map, numbytes);
if (ret < 0)
goto out;
skip = ret;
ret = aac_set_chunk_tv(afhi, &mp4ASC, &afhi->seconds_total);
if (ret < 0)
goto out;
- ret = aac_find_entry_point(umap + skip, numbytes - skip, &skip);
+ ret = aac_find_entry_point(map + skip, numbytes - skip, &skip);
if (ret < 0)
goto out;
afhi->chunk_table[0] = ret;
return ret;
}
-static const char* aac_suffixes[] = {"m4a", "mp4", NULL};
+static int aac_rewrite_tags(const char *map, size_t mapsize,
+ struct taginfo *tags, int fd, const char *filename)
+{
+ MP4FileHandle h;
+ const MP4Tags *mdata;
+ int ret = write_all(fd, map, mapsize);
+
+ if (ret < 0)
+ return ret;
+ lseek(fd, 0, SEEK_SET);
+ h = MP4Modify(filename, 0);
+ if (!h) {
+ PARA_ERROR_LOG("MP4Modify() failed, fd = %d\n", fd);
+ return -E_MP4V2;
+ }
+ mdata = MP4TagsAlloc();
+ assert(mdata);
+ if (!MP4TagsFetch(mdata, h)) {
+ PARA_ERROR_LOG("MP4Tags_Fetch() failed\n");
+ ret = -E_MP4V2;
+ goto close;
+ }
+
+ if (!MP4TagsSetAlbum(mdata, tags->album)) {
+ PARA_ERROR_LOG("Could not set album\n");
+ ret = -E_MP4V2;
+ goto tags_free;
+ }
+ if (!MP4TagsSetArtist(mdata, tags->artist)) {
+ PARA_ERROR_LOG("Could not set album\n");
+ ret = -E_MP4V2;
+ goto tags_free;
+ }
+ if (!MP4TagsSetComments(mdata, tags->comment)) {
+ PARA_ERROR_LOG("Could not set comment\n");
+ ret = -E_MP4V2;
+ goto tags_free;
+ }
+ if (!MP4TagsSetName(mdata, tags->title)) {
+ PARA_ERROR_LOG("Could not set title\n");
+ ret = -E_MP4V2;
+ goto tags_free;
+ }
+ if (!MP4TagsSetReleaseDate(mdata, tags->year)) {
+ PARA_ERROR_LOG("Could not set release date\n");
+ ret = -E_MP4V2;
+ goto tags_free;
+ }
+
+ if (!MP4TagsStore(mdata, h)) {
+ PARA_ERROR_LOG("Could not store tags\n");
+ ret = -E_MP4V2;
+ goto tags_free;
+ }
+ ret = 1;
+tags_free:
+ MP4TagsFree(mdata);
+close:
+ MP4Close(h, 0);
+ return ret;
+}
+
+static const char * const aac_suffixes[] = {"m4a", "mp4", NULL};
/**
* the init function of the aac audio format handler
*
{
afh->get_file_info = aac_get_file_info,
afh->suffixes = aac_suffixes;
+ afh->rewrite_tags = aac_rewrite_tags;
}
projects / paraslash.git / blobdiff