wavpackenc.c File Reference

#include "libavutil/channel_layout.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "avcodec.h"
#include "codec_internal.h"
#include "encode.h"
#include "put_bits.h"
#include "bytestream.h"
#include "wavpackenc.h"
#include "wavpack.h"

Go to the source code of this file.

Data Structures
struct	WavPackExtraInfo
struct	WavPackWords
struct	WavPackEncodeContext

Macros
#define	BITSTREAM_WRITER_LE
#define	UPDATE_WEIGHT(weight, delta, source, result)
#define	APPLY_WEIGHT_F(weight, sample)
#define	APPLY_WEIGHT_I(weight, sample)   (((weight) * (sample) + 512) >> 10)
#define	APPLY_WEIGHT(weight, sample)
#define	CLEAR(destin)   memset(&destin, 0, sizeof(destin));
#define	SHIFT_LSB   13
#define	SHIFT_MASK   (0x1FU << SHIFT_LSB)
#define	MAG_LSB   18
#define	MAG_MASK   (0x1FU << MAG_LSB)
#define	SRATE_LSB   23
#define	SRATE_MASK   (0xFU << SRATE_LSB)
#define	EXTRA_TRY_DELTAS   1
#define	EXTRA_ADJUST_DELTAS   2
#define	EXTRA_SORT_FIRST   4
#define	EXTRA_BRANCHES   8
#define	EXTRA_SORT_LAST   16
#define	FLOAT_SHIFT_ONES   1
#define	FLOAT_SHIFT_SAME   2
#define	FLOAT_SHIFT_SENT   4
#define	FLOAT_ZEROS_SENT   8
#define	FLOAT_NEG_ZEROS   0x10
#define	FLOAT_EXCEPTIONS   0x20
#define	get_mantissa(f)   ((f) & 0x7fffff)
#define	get_exponent(f)   (((f) >> 23) & 0xff)
#define	get_sign(f)   (((f) >> 31) & 0x1)
#define	count_bits(av)   ((av) ? 32 - ff_clz(av) : 0)
#define	update_weight_d2(weight, delta, source, result)
#define	update_weight_clip_d2(weight, delta, source, result)
#define	WRITE_DECWEIGHT(type)
#define	WRITE_DECSAMPLE(type)
#define	WRITE_CHAN_ENTROPY(chan)
#define	COPY_SAMPLES(type, offset, shift)
#define	OFFSET(x)   offsetof(WavPackEncodeContext, x)
#define	FLAGS   AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_AUDIO_PARAM

Functions
static av_cold int	wavpack_encode_init (AVCodecContext *avctx)
static void	shift_mono (int32_t *samples, int nb_samples, int shift)
static void	shift_stereo (int32_t *left, int32_t *right, int nb_samples, int shift)
static void	process_float (WavPackEncodeContext *s, int32_t *sample)
static int	scan_float (WavPackEncodeContext *s, int32_t *samples_l, int32_t *samples_r, int nb_samples)
static void	scan_int23 (WavPackEncodeContext *s, int32_t *samples_l, int32_t *samples_r, int nb_samples)
static int	scan_int32 (WavPackEncodeContext *s, int32_t *samples_l, int32_t *samples_r, int nb_samples)
static int8_t	store_weight (int weight)
static int	restore_weight (int8_t weight)
static int	log2s (int32_t value)
static void	decorr_mono (int32_t *in_samples, int32_t *out_samples, int nb_samples, struct Decorr *dpp, int dir)
static void	reverse_mono_decorr (struct Decorr *dpp)
static uint32_t	log2sample (uint32_t v, int limit, uint32_t *result)
static uint32_t	log2mono (int32_t *samples, int nb_samples, int limit)
static uint32_t	log2stereo (int32_t *samples_l, int32_t *samples_r, int nb_samples, int limit)
static void	decorr_mono_buffer (int32_t *samples, int32_t *outsamples, int nb_samples, struct Decorr *dpp, int tindex)
static void	recurse_mono (WavPackEncodeContext *s, WavPackExtraInfo *info, int depth, int delta, uint32_t input_bits)
static void	sort_mono (WavPackEncodeContext *s, WavPackExtraInfo *info)
static void	delta_mono (WavPackEncodeContext *s, WavPackExtraInfo *info)
static int	allocate_buffers2 (WavPackEncodeContext *s, int nterms)
static int	allocate_buffers (WavPackEncodeContext *s)
static void	analyze_mono (WavPackEncodeContext *s, int32_t *samples, int do_samples)
static void	scan_word (WavPackEncodeContext *s, WvChannel *c, int32_t *samples, int nb_samples, int dir)
static int	wv_mono (WavPackEncodeContext *s, int32_t *samples, int no_history, int do_samples)
static void	decorr_stereo (int32_t *in_left, int32_t *in_right, int32_t *out_left, int32_t *out_right, int nb_samples, struct Decorr *dpp, int dir)
static void	reverse_decorr (struct Decorr *dpp)
static void	decorr_stereo_quick (int32_t *in_left, int32_t *in_right, int32_t *out_left, int32_t *out_right, int nb_samples, struct Decorr *dpp)
static void	decorr_stereo_buffer (WavPackExtraInfo *info, int32_t *in_left, int32_t *in_right, int32_t *out_left, int32_t *out_right, int nb_samples, int tindex)
static void	sort_stereo (WavPackEncodeContext *s, WavPackExtraInfo *info)
static void	delta_stereo (WavPackEncodeContext *s, WavPackExtraInfo *info)
static void	recurse_stereo (WavPackEncodeContext *s, WavPackExtraInfo *info, int depth, int delta, uint32_t input_bits)
static void	analyze_stereo (WavPackEncodeContext *s, int32_t *in_left, int32_t *in_right, int do_samples)
static int	wv_stereo (WavPackEncodeContext *s, int32_t *samples_l, int32_t *samples_r, int no_history, int do_samples)
static void	encode_flush (WavPackEncodeContext *s)
static void	wavpack_encode_sample (WavPackEncodeContext *s, WvChannel *c, int32_t sample)
static void	pack_int32 (WavPackEncodeContext *s, int32_t *samples_l, int32_t *samples_r, int nb_samples)
static void	pack_float_sample (WavPackEncodeContext *s, int32_t *sample)
static void	pack_float (WavPackEncodeContext *s, int32_t *samples_l, int32_t *samples_r, int nb_samples)
static void	decorr_stereo_pass2 (struct Decorr *dpp, int32_t *samples_l, int32_t *samples_r, int nb_samples)
static void	decorr_stereo_pass_id2 (struct Decorr *dpp, int32_t *samples_l, int32_t *samples_r, int nb_samples)
static void	put_metadata_block (PutByteContext *pb, int flags, int size)
static int	wavpack_encode_block (WavPackEncodeContext *s, int32_t *samples_l, int32_t *samples_r, uint8_t *out, int out_size)
static void	fill_buffer (WavPackEncodeContext *s, const int8_t *src, int32_t *dst, int nb_samples)
static void	set_samplerate (WavPackEncodeContext *s)
static int	wavpack_encode_frame (AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
static av_cold int	wavpack_encode_close (AVCodecContext *avctx)

Variables
static const AVOption	options []
static const AVClass	wavpack_encoder_class
const FFCodec	ff_wavpack_encoder

Macro Definition Documentation

BITSTREAM_WRITER_LE

#define BITSTREAM_WRITER_LE

Definition at line 21 of file wavpackenc.c.

UPDATE_WEIGHT

#define UPDATE_WEIGHT	(		weight,
			delta,
			source,
			result
	)

Value:

    if ((source) && (result)) { \
        int32_t s = (int32_t) ((source) ^ (result)) >> 31; \
        weight = ((delta) ^ s) + ((weight) - s); \
    }

Definition at line 34 of file wavpackenc.c.

APPLY_WEIGHT_F

#define APPLY_WEIGHT_F	(		weight,
			sample
	)

Value:

    ((((((sample) & 0xffff) * (weight)) >> 9) + \
    ((((sample) & ~0xffff) >> 9) * (weight)) + 1) >> 1)

Definition at line 40 of file wavpackenc.c.

APPLY_WEIGHT_I

#define APPLY_WEIGHT_I	(		weight,
			sample
	)		(((weight) * (sample) + 512) >> 10)

Definition at line 43 of file wavpackenc.c.

APPLY_WEIGHT

#define APPLY_WEIGHT	(		weight,
			sample
	)

Value:

    ((sample) != (short) (sample) ? \
    APPLY_WEIGHT_F(weight, sample) : APPLY_WEIGHT_I (weight, sample))

Definition at line 45 of file wavpackenc.c.

CLEAR

#define CLEAR

(

destin

)

memset(&destin, 0, sizeof(destin));

Definition at line 48 of file wavpackenc.c.

SHIFT_LSB

#define SHIFT_LSB   13

Definition at line 50 of file wavpackenc.c.

SHIFT_MASK

#define SHIFT_MASK   (0x1FU << SHIFT_LSB)

Definition at line 51 of file wavpackenc.c.

MAG_LSB

#define MAG_LSB   18

Definition at line 53 of file wavpackenc.c.

MAG_MASK

#define MAG_MASK   (0x1FU << MAG_LSB)

Definition at line 54 of file wavpackenc.c.

SRATE_LSB

#define SRATE_LSB   23

Definition at line 56 of file wavpackenc.c.

SRATE_MASK

#define SRATE_MASK   (0xFU << SRATE_LSB)

Definition at line 57 of file wavpackenc.c.

EXTRA_TRY_DELTAS

#define EXTRA_TRY_DELTAS   1

Definition at line 59 of file wavpackenc.c.

EXTRA_ADJUST_DELTAS

#define EXTRA_ADJUST_DELTAS   2

Definition at line 60 of file wavpackenc.c.

EXTRA_SORT_FIRST

#define EXTRA_SORT_FIRST   4

Definition at line 61 of file wavpackenc.c.

EXTRA_BRANCHES

#define EXTRA_BRANCHES   8

Definition at line 62 of file wavpackenc.c.

EXTRA_SORT_LAST

#define EXTRA_SORT_LAST   16

Definition at line 63 of file wavpackenc.c.

FLOAT_SHIFT_ONES

#define FLOAT_SHIFT_ONES   1

Definition at line 214 of file wavpackenc.c.

FLOAT_SHIFT_SAME

#define FLOAT_SHIFT_SAME   2

Definition at line 215 of file wavpackenc.c.

FLOAT_SHIFT_SENT

#define FLOAT_SHIFT_SENT   4

Definition at line 216 of file wavpackenc.c.

FLOAT_ZEROS_SENT

#define FLOAT_ZEROS_SENT   8

Definition at line 217 of file wavpackenc.c.

FLOAT_NEG_ZEROS

#define FLOAT_NEG_ZEROS   0x10

Definition at line 218 of file wavpackenc.c.

FLOAT_EXCEPTIONS

#define FLOAT_EXCEPTIONS   0x20

Definition at line 219 of file wavpackenc.c.

get_mantissa

#define get_mantissa

(

f

)

((f) & 0x7fffff)

Definition at line 221 of file wavpackenc.c.

get_exponent

#define get_exponent

(

f

)

(((f) >> 23) & 0xff)

Definition at line 222 of file wavpackenc.c.

get_sign

#define get_sign

(

f

)

(((f) >> 31) & 0x1)

Definition at line 223 of file wavpackenc.c.

count_bits

#define count_bits

(

av

)

((av) ? 32 - ff_clz(av) : 0)

Definition at line 642 of file wavpackenc.c.

update_weight_d2

#define update_weight_d2	(		weight,
			delta,
			source,
			result
	)

Value:

    if (source && result) \
        weight -= (((source ^ result) >> 29) & 4) - 2;

Definition at line 2339 of file wavpackenc.c.

update_weight_clip_d2

#define update_weight_clip_d2	(		weight,
			delta,
			source,
			result
	)

Value:

    if (source && result) { \
        const int32_t s = (source ^ result) >> 31; \
        if ((weight = (weight ^ s) + (2 - s)) > 1024) weight = 1024; \
        weight = (weight ^ s) - s; \
    }

Definition at line 2343 of file wavpackenc.c.

WRITE_DECWEIGHT

#define WRITE_DECWEIGHT

(

type

)

Value:

        do {            \
        temp = store_weight(type);    \
        bytestream2_put_byte(&pb, temp);      \
        type = restore_weight(temp);  \
    } while (0)

WRITE_DECSAMPLE

#define WRITE_DECSAMPLE

(

type

)

Value:

        do {        \
        temp = log2s(type);               \
        type = wp_exp2(temp);             \
        bytestream2_put_le16(&pb, temp);  \
    } while (0)

WRITE_CHAN_ENTROPY

#define WRITE_CHAN_ENTROPY

(

chan

)

Value:

        do {               \
        for (i = 0; i < 3; i++) {                   \
            temp = wp_log2(s->w.c[chan].median[i]); \
            bytestream2_put_le16(&pb, temp);        \
            s->w.c[chan].median[i] = wp_exp2(temp); \
        }                                           \
    } while (0)

COPY_SAMPLES

#define COPY_SAMPLES	(		type,
			offset,
			shift
	)

Value:

        do {            \
        const type *sptr = (const type *)src;             \
        for (i = 0; i < nb_samples; i++)                  \
            dst[i] = (sptr[i] - offset) >> shift;         \
    } while (0)

OFFSET

#define OFFSET

(

x

)

offsetof(WavPackEncodeContext, x)

Definition at line 2955 of file wavpackenc.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_AUDIO_PARAM

Definition at line 2956 of file wavpackenc.c.

Function Documentation

wavpack_encode_init()

static av_cold int wavpack_encode_init ( AVCodecContext *  avctx )

static

Definition at line 127 of file wavpackenc.c.

shift_mono()

static void shift_mono ( int32_t *  samples, int  nb_samples, int  shift  )

static

Definition at line 197 of file wavpackenc.c.

Referenced by scan_float(), scan_int23(), scan_int32(), and wavpack_encode_block().

shift_stereo()

static void shift_stereo ( int32_t *  left, int32_t *  right, int  nb_samples, int  shift  )

static

Definition at line 204 of file wavpackenc.c.

Referenced by scan_float(), scan_int23(), scan_int32(), and wavpack_encode_block().

process_float()

static void process_float ( WavPackEncodeContext *  s, int32_t *  sample  )

static

Definition at line 225 of file wavpackenc.c.

Referenced by scan_float().

scan_float()

static int scan_float ( WavPackEncodeContext *  s, int32_t *  samples_l, int32_t *  samples_r, int  nb_samples  )

static

Definition at line 266 of file wavpackenc.c.

Referenced by wavpack_encode_block().

scan_int23()

static void scan_int23 ( WavPackEncodeContext *  s, int32_t *  samples_l, int32_t *  samples_r, int  nb_samples  )

static

Definition at line 352 of file wavpackenc.c.

Referenced by wavpack_encode_block().

scan_int32()

static int scan_int32 ( WavPackEncodeContext *  s, int32_t *  samples_l, int32_t *  samples_r, int  nb_samples  )

static

Definition at line 433 of file wavpackenc.c.

Referenced by wavpack_encode_block().

store_weight()

static int8_t store_weight ( int  weight )

static

Definition at line 523 of file wavpackenc.c.

Referenced by decorr_mono(), decorr_stereo(), decorr_stereo_quick(), and wavpack_encode_block().

restore_weight()

static int restore_weight ( int8_t  weight )

static

Definition at line 532 of file wavpackenc.c.

Referenced by decorr_mono(), decorr_stereo(), and decorr_stereo_quick().

log2s()

static int log2s ( int32_t  value )

static

Definition at line 542 of file wavpackenc.c.

Referenced by decorr_mono(), decorr_stereo(), and decorr_stereo_quick().

decorr_mono()

static void decorr_mono ( int32_t *  in_samples, int32_t *  out_samples, int  nb_samples, struct Decorr *  dpp, int  dir  )

static

Definition at line 547 of file wavpackenc.c.

Referenced by analyze_mono(), decorr_mono_buffer(), and wv_mono().

reverse_mono_decorr()

static void reverse_mono_decorr ( struct Decorr *  dpp )

static

Definition at line 610 of file wavpackenc.c.

Referenced by decorr_mono_buffer(), and wv_mono().

log2sample()

static uint32_t log2sample ( uint32_t  v, int  limit, uint32_t *  result  )

static

Definition at line 644 of file wavpackenc.c.

Referenced by log2mono(), and log2stereo().

log2mono()

static uint32_t log2mono ( int32_t *  samples, int  nb_samples, int  limit  )

static

Definition at line 660 of file wavpackenc.c.

Referenced by analyze_mono(), delta_mono(), recurse_mono(), sort_mono(), and wv_mono().

log2stereo()

static uint32_t log2stereo ( int32_t *  samples_l, int32_t *  samples_r, int  nb_samples, int  limit  )

static

Definition at line 670 of file wavpackenc.c.

Referenced by analyze_stereo(), delta_stereo(), recurse_stereo(), sort_stereo(), and wv_stereo().

decorr_mono_buffer()

static void decorr_mono_buffer ( int32_t *  samples, int32_t *  outsamples, int  nb_samples, struct Decorr *  dpp, int  tindex  )

static

Definition at line 682 of file wavpackenc.c.

Referenced by delta_mono(), recurse_mono(), and sort_mono().

recurse_mono()

static void recurse_mono ( WavPackEncodeContext *  s, WavPackExtraInfo *  info, int  depth, int  delta, uint32_t  input_bits  )

static

Definition at line 721 of file wavpackenc.c.

Referenced by analyze_mono().

sort_mono()

static void sort_mono ( WavPackEncodeContext *  s, WavPackExtraInfo *  info  )

static

Definition at line 784 of file wavpackenc.c.

Referenced by analyze_mono().

delta_mono()

static void delta_mono ( WavPackEncodeContext *  s, WavPackExtraInfo *  info  )

static

Definition at line 831 of file wavpackenc.c.

Referenced by analyze_mono().

allocate_buffers2()

static int allocate_buffers2 ( WavPackEncodeContext *  s, int  nterms  )

static

Definition at line 884 of file wavpackenc.c.

Referenced by analyze_mono(), and analyze_stereo().

allocate_buffers()

static int allocate_buffers ( WavPackEncodeContext *  s )

static

Definition at line 904 of file wavpackenc.c.

Referenced by wv_mono(), and wv_stereo().

analyze_mono()

static void analyze_mono ( WavPackEncodeContext *  s, int32_t *  samples, int  do_samples  )

static

Definition at line 934 of file wavpackenc.c.

Referenced by wv_mono().

scan_word()

static void scan_word ( WavPackEncodeContext *  s, WvChannel *  c, int32_t *  samples, int  nb_samples, int  dir  )

static

Definition at line 986 of file wavpackenc.c.

Referenced by wv_mono(), and wv_stereo().

wv_mono()

static int wv_mono ( WavPackEncodeContext *  s, int32_t *  samples, int  no_history, int  do_samples  )

static

Definition at line 1018 of file wavpackenc.c.

Referenced by wavpack_encode_block().

decorr_stereo()

static void decorr_stereo ( int32_t *  in_left, int32_t *  in_right, int32_t *  out_left, int32_t *  out_right, int  nb_samples, struct Decorr *  dpp, int  dir  )

static

Definition at line 1124 of file wavpackenc.c.

Referenced by analyze_stereo(), decorr_stereo_buffer(), and wv_stereo().

reverse_decorr()

static void reverse_decorr ( struct Decorr *  dpp )

static

Definition at line 1317 of file wavpackenc.c.

Referenced by decorr_stereo_buffer(), and wv_stereo().

decorr_stereo_quick()

static void decorr_stereo_quick ( int32_t *  in_left, int32_t *  in_right, int32_t *  out_left, int32_t *  out_right, int  nb_samples, struct Decorr *  dpp  )

static

Definition at line 1361 of file wavpackenc.c.

Referenced by analyze_stereo(), decorr_stereo_buffer(), and wv_stereo().

decorr_stereo_buffer()

static void decorr_stereo_buffer ( WavPackExtraInfo *  info, int32_t *  in_left, int32_t *  in_right, int32_t *  out_left, int32_t *  out_right, int  nb_samples, int  tindex  )

static

Definition at line 1497 of file wavpackenc.c.

Referenced by delta_stereo(), recurse_stereo(), and sort_stereo().

sort_stereo()

static void sort_stereo ( WavPackEncodeContext *  s, WavPackExtraInfo *  info  )

static

Definition at line 1549 of file wavpackenc.c.

Referenced by analyze_stereo().

delta_stereo()

static void delta_stereo ( WavPackEncodeContext *  s, WavPackExtraInfo *  info  )

static

Definition at line 1606 of file wavpackenc.c.

Referenced by analyze_stereo().

recurse_stereo()

static void recurse_stereo ( WavPackEncodeContext *  s, WavPackExtraInfo *  info, int  depth, int  delta, uint32_t  input_bits  )

static

Definition at line 1666 of file wavpackenc.c.

Referenced by analyze_stereo().

analyze_stereo()

static void analyze_stereo ( WavPackEncodeContext *  s, int32_t *  in_left, int32_t *  in_right, int  do_samples  )

static

Definition at line 1739 of file wavpackenc.c.

Referenced by wv_stereo().

wv_stereo()

static int wv_stereo ( WavPackEncodeContext *  s, int32_t *  samples_l, int32_t *  samples_r, int  no_history, int  do_samples  )

static

Definition at line 1808 of file wavpackenc.c.

Referenced by wavpack_encode_block().

encode_flush()

static void encode_flush ( WavPackEncodeContext *  s )

static

Definition at line 1968 of file wavpackenc.c.

Referenced by wavpack_encode_block(), and wavpack_encode_sample().

wavpack_encode_sample()

static void wavpack_encode_sample ( WavPackEncodeContext *  s, WvChannel *  c, int32_t  sample  )

static

Definition at line 2041 of file wavpackenc.c.

Referenced by wavpack_encode_block().

pack_int32()

static void pack_int32 ( WavPackEncodeContext *  s, int32_t *  samples_l, int32_t *  samples_r, int  nb_samples  )

static

Definition at line 2134 of file wavpackenc.c.

Referenced by wavpack_encode_block().

pack_float_sample()

static void pack_float_sample ( WavPackEncodeContext *  s, int32_t *  sample  )

static

Definition at line 2159 of file wavpackenc.c.

Referenced by pack_float().

pack_float()

static void pack_float ( WavPackEncodeContext *  s, int32_t *  samples_l, int32_t *  samples_r, int  nb_samples  )

static

Definition at line 2214 of file wavpackenc.c.

Referenced by wavpack_encode_block().

decorr_stereo_pass2()

static void decorr_stereo_pass2 ( struct Decorr *  dpp, int32_t *  samples_l, int32_t *  samples_r, int  nb_samples  )

static

Definition at line 2231 of file wavpackenc.c.

Referenced by wavpack_encode_block().

decorr_stereo_pass_id2()

static void decorr_stereo_pass_id2 ( struct Decorr *  dpp, int32_t *  samples_l, int32_t *  samples_r, int  nb_samples  )

static

Definition at line 2350 of file wavpackenc.c.

Referenced by wavpack_encode_block().

put_metadata_block()

static void put_metadata_block ( PutByteContext *  pb, int  flags, int  size  )

static

Definition at line 2459 of file wavpackenc.c.

Referenced by wavpack_encode_block().

wavpack_encode_block()

static int wavpack_encode_block ( WavPackEncodeContext *  s, int32_t *  samples_l, int32_t *  samples_r, uint8_t *  out, int  out_size  )

static

Definition at line 2468 of file wavpackenc.c.

Referenced by wavpack_encode_frame().

fill_buffer()

static void fill_buffer ( WavPackEncodeContext *  s, const int8_t *  src, int32_t *  dst, int  nb_samples  )

static

Definition at line 2822 of file wavpackenc.c.

Referenced by wavpack_encode_frame().

set_samplerate()

static void set_samplerate ( WavPackEncodeContext *  s )

static

Definition at line 2851 of file wavpackenc.c.

Referenced by wavpack_encode_frame().

wavpack_encode_frame()

static int wavpack_encode_frame ( AVCodecContext *  avctx, AVPacket *  avpkt, const AVFrame *  frame, int *  got_packet_ptr  )

static

Definition at line 2863 of file wavpackenc.c.

wavpack_encode_close()

static av_cold int wavpack_encode_close ( AVCodecContext *  avctx )

static

Definition at line 2921 of file wavpackenc.c.

Variable Documentation

options

const AVOption options[]

static

Initial value:

= {
    { "joint_stereo",  "", OFFSET(joint), AV_OPT_TYPE_BOOL, {.i64=-1}, -1, 1, FLAGS },
    { "optimize_mono", "", OFFSET(optimize_mono), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
    { NULL },
}

Definition at line 2957 of file wavpackenc.c.

wavpack_encoder_class

const AVClass wavpack_encoder_class

static

Initial value:

= {
    .class_name = "WavPack encoder",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 2963 of file wavpackenc.c.

ff_wavpack_encoder

const FFCodec ff_wavpack_encoder

Initial value:

= {
    .p.name         = "wavpack",
    CODEC_LONG_NAME("WavPack"),
    .p.type         = AVMEDIA_TYPE_AUDIO,
    .p.id           = AV_CODEC_ID_WAVPACK,
    .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_SMALL_LAST_FRAME |
                      AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
    .priv_data_size = sizeof(WavPackEncodeContext),
    .p.priv_class   = &wavpack_encoder_class,
    .init           = wavpack_encode_init,
    FF_CODEC_ENCODE_CB(wavpack_encode_frame),
    .close          = wavpack_encode_close,
    .p.sample_fmts  = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_U8P,
                                                     AV_SAMPLE_FMT_S16P,
                                                     AV_SAMPLE_FMT_S32P,
                                                     AV_SAMPLE_FMT_FLTP,
                                                     AV_SAMPLE_FMT_NONE },
}

Definition at line 2970 of file wavpackenc.c.