/usr/include/gmerlin/fileformat.h is in libgmerlin-dev 1.2.0~dfsg+1-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* gmerlin - a general purpose multimedia framework and applications
*
* Copyright (c) 2001 - 2011 Members of the Gmerlin project
* gmerlin-general@lists.sourceforge.net
* http://gmerlin.sourceforge.net
*
* 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, see <http://www.gnu.org/licenses/>.
* *****************************************************************/
#define BG_MK_FOURCC(a, b, c, d) ((a<<24)|(b<<16)|(c<<8)|d)
typedef struct
{
int (*read_callback)(void * priv, uint8_t * data, int len);
int (*write_callback)(void * priv, const uint8_t * data, int len);
int64_t (*ftell_callback)(void * priv);
int64_t (*seek_callback)(void * priv, int64_t pos, int whence);
void (*close_callback)(void * priv);
void * data;
uint8_t * buffer;
int buffer_alloc;
} bg_f_io_t;
int bg_f_io_open_stdio_read(bg_f_io_t * io, const char * filename);
int bg_f_io_open_stdio_write(bg_f_io_t * io, const char * filename);
void bg_f_io_close(bg_f_io_t * io);
typedef enum
{
CHUNK_TYPE_SIGNATURE = BG_MK_FOURCC('G','A','V','L'),
CHUNK_TYPE_AUDIO_STREAM_HEADER = BG_MK_FOURCC('A','S','T','R'),
CHUNK_TYPE_VIDEO_STREAM_HEADER = BG_MK_FOURCC('V','S','T','R'),
CHUNK_TYPE_AUDIO_FORMAT = BG_MK_FOURCC('A','F','M','T'),
CHUNK_TYPE_VIDEO_FORMAT = BG_MK_FOURCC('V','F','M','T'),
CHUNK_TYPE_AUDIO_FRAME = BG_MK_FOURCC('A','F','R','M'),
CHUNK_TYPE_VIDEO_FRAME = BG_MK_FOURCC('V','F','R','M'),
} bg_f_chunk_type_t;
typedef enum
{
SIG_TYPE_IMAGE = BG_MK_FOURCC('I','M','A','G'),
} bg_f_sig_type_t;
typedef struct
{
uint32_t type;
uint64_t size;
uint64_t start; /* Set during writing */
} bg_f_chunk_t;
int bg_f_chunk_read(bg_f_io_t * io, bg_f_chunk_t * ch);
int bg_f_chunk_write_header(bg_f_io_t * io, bg_f_chunk_t * ch, bg_f_chunk_type_t type);
int bg_f_chunk_write_footer(bg_f_io_t * io, bg_f_chunk_t * ch);
typedef struct
{
uint32_t type;
} bg_f_signature_t;
int bg_f_signature_read(bg_f_io_t * io, bg_f_chunk_t * ch, bg_f_signature_t * sig);
int bg_f_signature_write(bg_f_io_t * io, bg_f_signature_t * sig);
int bg_f_audio_format_read(bg_f_io_t * io, bg_f_chunk_t * ch, gavl_audio_format_t * f, int * big_endian);
int bg_f_audio_format_write(bg_f_io_t * io, const gavl_audio_format_t * f);
int bg_f_video_format_read(bg_f_io_t * io, bg_f_chunk_t * ch, gavl_video_format_t * f, int * big_endian);
int bg_f_video_format_write(bg_f_io_t * io, const gavl_video_format_t * f);
int bg_f_audio_frame_read(bg_f_io_t * io, bg_f_chunk_t * ch,
const gavl_audio_format_t * format,
gavl_audio_frame_t * f, int big_endian,
gavl_dsp_context_t * ctx);
int bg_f_audio_frame_write(bg_f_io_t * io,
const gavl_audio_format_t * format,
const gavl_audio_frame_t * f);
int bg_f_video_frame_read(bg_f_io_t * io, bg_f_chunk_t * ch,
const gavl_video_format_t * format,
gavl_video_frame_t * f, int big_endian,
gavl_dsp_context_t * ctx);
int bg_f_video_frame_write(bg_f_io_t * io,
const gavl_video_format_t * format,
const gavl_video_frame_t * f);
typedef struct
{
uint32_t id;
uint32_t language;
uint64_t duration;
} bg_f_stream_header_t;
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