chromaprint.c File Reference

#include "avformat.h"
#include "libavutil/opt.h"
#include "libavcodec/internal.h"
#include <chromaprint.h>

Go to the source code of this file.

Data Structures
struct	ChromaprintMuxContext

Macros
#define	CPR_VERSION_INT
#define	OFFSET(x)   offsetof(ChromaprintMuxContext, x)
#define	FLAGS   AV_OPT_FLAG_ENCODING_PARAM

Enumerations
enum	FingerprintFormat { FINGERPRINT_RAW, FINGERPRINT_COMPRESSED, FINGERPRINT_BASE64 }

Functions
static void	cleanup (ChromaprintMuxContext *cpr)
static int	write_header (AVFormatContext *s)
static int	write_packet (AVFormatContext *s, AVPacket *pkt)
static int	write_trailer (AVFormatContext *s)

Variables
static const AVOption	options []
static const AVClass	chromaprint_class
AVOutputFormat	ff_chromaprint_muxer

Macro Definition Documentation

#define CPR_VERSION_INT

Value:

AV_VERSION_INT(CHROMAPRINT_VERSION_MAJOR, \
                                       CHROMAPRINT_VERSION_MINOR, \
                                       CHROMAPRINT_VERSION_PATCH)

Definition at line 27 of file chromaprint.c.

#define OFFSET

(

x

)

offsetof(ChromaprintMuxContext, x)

Definition at line 157 of file chromaprint.c.

#define FLAGS   AV_OPT_FLAG_ENCODING_PARAM

Definition at line 158 of file chromaprint.c.

Enumeration Type Documentation

enum FingerprintFormat

Enumerator
FINGERPRINT_RAW
FINGERPRINT_COMPRESSED
FINGERPRINT_BASE64

Definition at line 31 of file chromaprint.c.

Function Documentation

static void cleanup ( ChromaprintMuxContext *  cpr )

static

Definition at line 45 of file chromaprint.c.

Referenced by write_header(), and write_trailer().

static int write_header ( AVFormatContext *  s )

static

Definition at line 54 of file chromaprint.c.

static int write_packet ( AVFormatContext *  s, AVPacket *  pkt  )

static

Definition at line 109 of file chromaprint.c.

static int write_trailer ( AVFormatContext *  s )

static

Definition at line 115 of file chromaprint.c.

Variable Documentation

const AVOption options[]

static

Initial value:

= {
    { "silence_threshold", "threshold for detecting silence", OFFSET(silence_threshold), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 32767, FLAGS },
    { "algorithm", "version of the fingerprint algorithm", OFFSET(algorithm), AV_OPT_TYPE_INT, { .i64 = CHROMAPRINT_ALGORITHM_DEFAULT }, CHROMAPRINT_ALGORITHM_TEST1, INT_MAX, FLAGS },
    { "fp_format", "fingerprint format to write", OFFSET(fp_format), AV_OPT_TYPE_INT, { .i64 = FINGERPRINT_BASE64 }, FINGERPRINT_RAW, FINGERPRINT_BASE64, FLAGS },
    { "raw", "binary raw fingerprint", 0, AV_OPT_TYPE_CONST, {.i64 = FINGERPRINT_RAW }, INT_MIN, INT_MAX, FLAGS, "fp_format"},
    { "compressed", "binary compressed fingerprint", 0, AV_OPT_TYPE_CONST, {.i64 = FINGERPRINT_COMPRESSED }, INT_MIN, INT_MAX, FLAGS, "fp_format"},
    { "base64", "Base64 compressed fingerprint", 0, AV_OPT_TYPE_CONST, {.i64 = FINGERPRINT_BASE64 }, INT_MIN, INT_MAX, FLAGS, "fp_format"},
    { NULL },
}

Definition at line 159 of file chromaprint.c.

const AVClass chromaprint_class

static

Initial value:

= {
    .class_name = "chromaprint muxer",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 169 of file chromaprint.c.

AVOutputFormat ff_chromaprint_muxer

Initial value:

= {
    .name              = "chromaprint",
    .long_name         = NULL_IF_CONFIG_SMALL("Chromaprint"),
    .priv_data_size    = sizeof(ChromaprintMuxContext),
    .audio_codec       = AV_NE(AV_CODEC_ID_PCM_S16BE, AV_CODEC_ID_PCM_S16LE),
    .write_header      = write_header,
    .write_packet      = write_packet,
    .write_trailer     = write_trailer,
    .flags             = AVFMT_NOTIMESTAMPS,
    .priv_class        = &chromaprint_class,
}

Definition at line 176 of file chromaprint.c.