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/****************************************************************************
MP4 output module
Copyright (C) 2017 Krzysztof Nikiel
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 3 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, see <http://www.gnu.org/licenses/>.
****************************************************************************/
#include <stdint.h>
enum {TAGMAX = 100};
typedef struct
{
uint32_t samplerate;
// total sound samples
uint32_t samples;
uint32_t channels;
// sample depth
uint32_t bits;
// buffer config
uint16_t buffersize;
struct {
uint32_t max;
uint32_t avg;
int size;
int samples;
} bitrate;
uint32_t framesamples;
struct
{
uint16_t *data;
uint32_t ents;
uint32_t bufsize;
} frame;
// AudioSpecificConfig data:
struct
{
uint8_t *data;
unsigned long size;
} asc;
uint32_t mdatofs;
uint32_t mdatsize;
struct
{
// meta fields
const char *encoder;
const char *artist;
const char *composer;
const char *title;
const char *album;
uint8_t compilation;
uint32_t trackno;
uint32_t ntracks;
uint32_t discno;
uint32_t ndiscs;
int genre;
const char *year;
struct {
uint8_t *data;
int size;
} cover;
const char *comment;
struct {
const char *name;
const char *data;
} ext[TAGMAX];
int extnum;
} tag;
} mp4config_t;
extern mp4config_t mp4config;
int mp4atom_open(char *name, int over);
int mp4atom_head(void);
int mp4atom_tail(void);
int mp4atom_frame(uint8_t * bitbuf, int bytesWritten, int frame_samples);
int mp4atom_close(void);
int mp4tag_add(const char *name, const char *data);
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