FFmpeg
Data Structures | Macros | Functions | Variables
wavpackenc.c File Reference
#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "avcodec.h"
#include "internal.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
 
AVCodec ff_wavpack_encoder
 

Macro Definition Documentation

#define BITSTREAM_WRITER_LE

Definition at line 21 of file wavpackenc.c.

#define UPDATE_WEIGHT (   weight,
  delta,
  source,
  result 
)
Value:
if ((source) && (result)) { \
int32_t s = (int32_t) ((source) ^ (result)) >> 31; \
weight = ((delta) ^ s) + ((weight) - s); \
}
float delta
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a source
int32_t
#define s(width, name)
Definition: cbs_vp9.c:257
static int weight(int i, int blen, int offset)
Definition: diracdec.c:1560
and forward the result(frame or status change) to the corresponding input.If nothing is possible

Definition at line 32 of file wavpackenc.c.

Referenced by decorr_mono(), decorr_stereo(), decorr_stereo_pass2(), decorr_stereo_quick(), and wavpack_encode_block().

#define APPLY_WEIGHT_F (   weight,
  sample 
)
Value:
((((((sample) & 0xffff) * (weight)) >> 9) + \
((((sample) & ~0xffff) >> 9) * (weight)) + 1) >> 1)
#define sample
static int weight(int i, int blen, int offset)
Definition: diracdec.c:1560

Definition at line 38 of file wavpackenc.c.

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

Definition at line 41 of file wavpackenc.c.

Referenced by decorr_stereo_pass_id2(), and decorr_stereo_quick().

#define APPLY_WEIGHT (   weight,
  sample 
)
Value:
((sample) != (short) (sample) ? \
#define APPLY_WEIGHT_F(weight, sample)
Definition: wavpackenc.c:38
#define sample
#define APPLY_WEIGHT_I(weight, sample)
Definition: wavpackenc.c:41
static int weight(int i, int blen, int offset)
Definition: diracdec.c:1560

Definition at line 43 of file wavpackenc.c.

Referenced by decorr_mono(), decorr_stereo(), decorr_stereo_pass2(), and wavpack_encode_block().

#define CLEAR (   destin)    memset(&destin, 0, sizeof(destin));
#define SHIFT_LSB   13

Definition at line 48 of file wavpackenc.c.

Referenced by wavpack_encode_block().

#define SHIFT_MASK   (0x1FU << SHIFT_LSB)

Definition at line 49 of file wavpackenc.c.

Referenced by wavpack_encode_block().

#define MAG_LSB   18
#define MAG_MASK   (0x1FU << MAG_LSB)
#define SRATE_LSB   23

Definition at line 54 of file wavpackenc.c.

Referenced by set_samplerate().

#define SRATE_MASK   (0xFU << SRATE_LSB)

Definition at line 55 of file wavpackenc.c.

Referenced by wavpack_encode_block().

#define EXTRA_TRY_DELTAS   1

Definition at line 57 of file wavpackenc.c.

Referenced by analyze_mono(), analyze_stereo(), and wavpack_encode_init().

#define EXTRA_ADJUST_DELTAS   2

Definition at line 58 of file wavpackenc.c.

Referenced by analyze_mono(), analyze_stereo(), and wavpack_encode_init().

#define EXTRA_SORT_FIRST   4

Definition at line 59 of file wavpackenc.c.

Referenced by analyze_mono(), analyze_stereo(), and wavpack_encode_init().

#define EXTRA_BRANCHES   8

Definition at line 60 of file wavpackenc.c.

Referenced by analyze_mono(), analyze_stereo(), and wavpack_encode_init().

#define EXTRA_SORT_LAST   16

Definition at line 61 of file wavpackenc.c.

Referenced by analyze_mono(), analyze_stereo(), and wavpack_encode_init().

#define FLOAT_SHIFT_ONES   1

Definition at line 212 of file wavpackenc.c.

Referenced by scan_float().

#define FLOAT_SHIFT_SAME   2

Definition at line 213 of file wavpackenc.c.

Referenced by pack_float_sample(), and scan_float().

#define FLOAT_SHIFT_SENT   4

Definition at line 214 of file wavpackenc.c.

Referenced by pack_float_sample(), and scan_float().

#define FLOAT_ZEROS_SENT   8

Definition at line 215 of file wavpackenc.c.

Referenced by pack_float_sample(), and scan_float().

#define FLOAT_NEG_ZEROS   0x10

Definition at line 216 of file wavpackenc.c.

Referenced by pack_float_sample(), and scan_float().

#define FLOAT_EXCEPTIONS   0x20

Definition at line 217 of file wavpackenc.c.

Referenced by process_float(), and scan_float().

#define get_mantissa (   f)    ((f) & 0x7fffff)

Definition at line 219 of file wavpackenc.c.

Referenced by pack_float_sample(), process_float(), and scan_float().

#define get_exponent (   f)    (((f) >> 23) & 0xff)

Definition at line 220 of file wavpackenc.c.

Referenced by pack_float_sample(), process_float(), and scan_float().

#define get_sign (   f)    (((f) >> 31) & 0x1)

Definition at line 221 of file wavpackenc.c.

Referenced by pack_float_sample(), process_float(), and scan_float().

#define count_bits (   av)    ((av) ? 32 - ff_clz(av) : 0)

Definition at line 640 of file wavpackenc.c.

Referenced by encode_flush(), log2sample(), and wavpack_encode_sample().

#define update_weight_d2 (   weight,
  delta,
  source,
  result 
)
Value:
if (source && result) \
weight -= (((source ^ result) >> 29) & 4) - 2;
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a source
static int weight(int i, int blen, int offset)
Definition: diracdec.c:1560
and forward the result(frame or status change) to the corresponding input.If nothing is possible

Definition at line 2337 of file wavpackenc.c.

Referenced by decorr_stereo_pass_id2().

#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; \
}
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a source
int32_t
#define s(width, name)
Definition: cbs_vp9.c:257
if(ret)
static int weight(int i, int blen, int offset)
Definition: diracdec.c:1560
and forward the result(frame or status change) to the corresponding input.If nothing is possible

Definition at line 2341 of file wavpackenc.c.

Referenced by decorr_stereo_pass_id2().

#define WRITE_DECWEIGHT (   type)
Value:
do { \
bytestream2_put_byte(&pb, temp); \
} while (0)
else temp
Definition: vf_mcdeint.c:256
GLint GLenum type
Definition: opengl_enc.c:104
static int8_t store_weight(int weight)
Definition: wavpackenc.c:521
static int restore_weight(int8_t weight)
Definition: wavpackenc.c:530

Referenced by wavpack_encode_block().

#define WRITE_DECSAMPLE (   type)
Value:
do { \
bytestream2_put_le16(&pb, temp); \
} while (0)
else temp
Definition: vf_mcdeint.c:256
GLint GLenum type
Definition: opengl_enc.c:104
static av_always_inline int wp_exp2(int16_t val)
Definition: wavpack.h:165
static int log2s(int32_t value)
Definition: wavpackenc.c:540

Referenced by wavpack_encode_block().

#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)
else temp
Definition: vf_mcdeint.c:256
static av_always_inline int wp_log2(uint32_t val)
Definition: wavpack.h:182
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
static av_always_inline int wp_exp2(int16_t val)
Definition: wavpack.h:165
#define s(width, name)
Definition: cbs_vp9.c:257
for(j=16;j >0;--j)

Referenced by wavpack_encode_block().

#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)
static int shift(int a, int b)
Definition: sonic.c:82
GLint GLenum type
Definition: opengl_enc.c:104
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf offset
#define src
Definition: vp8dsp.c:254
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
for(j=16;j >0;--j)

Referenced by fill_buffer().

#define OFFSET (   x)    offsetof(WavPackEncodeContext, x)

Definition at line 2945 of file wavpackenc.c.

Definition at line 2946 of file wavpackenc.c.

Function Documentation

static av_cold int wavpack_encode_init ( AVCodecContext avctx)
static

Definition at line 125 of file wavpackenc.c.

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

Definition at line 195 of file wavpackenc.c.

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

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

Definition at line 202 of file wavpackenc.c.

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

static void process_float ( WavPackEncodeContext s,
int32_t sample 
)
static

Definition at line 223 of file wavpackenc.c.

Referenced by scan_float().

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

Definition at line 264 of file wavpackenc.c.

Referenced by wavpack_encode_block().

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

Definition at line 350 of file wavpackenc.c.

Referenced by wavpack_encode_block().

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

Definition at line 431 of file wavpackenc.c.

Referenced by wavpack_encode_block().

static int8_t store_weight ( int  weight)
static
static int restore_weight ( int8_t  weight)
static

Definition at line 530 of file wavpackenc.c.

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

static int log2s ( int32_t  value)
static

Definition at line 540 of file wavpackenc.c.

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

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

Definition at line 545 of file wavpackenc.c.

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

static void reverse_mono_decorr ( struct Decorr dpp)
static

Definition at line 608 of file wavpackenc.c.

Referenced by decorr_mono_buffer(), and wv_mono().

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

Definition at line 642 of file wavpackenc.c.

Referenced by log2mono(), and log2stereo().

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

Definition at line 658 of file wavpackenc.c.

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

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

Definition at line 668 of file wavpackenc.c.

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

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

Definition at line 680 of file wavpackenc.c.

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

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

Definition at line 719 of file wavpackenc.c.

Referenced by analyze_mono().

static void sort_mono ( WavPackEncodeContext s,
WavPackExtraInfo info 
)
static

Definition at line 782 of file wavpackenc.c.

Referenced by analyze_mono().

static void delta_mono ( WavPackEncodeContext s,
WavPackExtraInfo info 
)
static

Definition at line 829 of file wavpackenc.c.

Referenced by analyze_mono().

static int allocate_buffers2 ( WavPackEncodeContext s,
int  nterms 
)
static

Definition at line 882 of file wavpackenc.c.

Referenced by analyze_mono(), and analyze_stereo().

static int allocate_buffers ( WavPackEncodeContext s)
static

Definition at line 902 of file wavpackenc.c.

Referenced by wv_mono(), and wv_stereo().

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

Definition at line 932 of file wavpackenc.c.

Referenced by wv_mono().

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

Definition at line 984 of file wavpackenc.c.

Referenced by wv_mono(), and wv_stereo().

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

Definition at line 1016 of file wavpackenc.c.

Referenced by wavpack_encode_block().

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 1122 of file wavpackenc.c.

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

static void reverse_decorr ( struct Decorr dpp)
static

Definition at line 1315 of file wavpackenc.c.

Referenced by decorr_stereo_buffer(), and wv_stereo().

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 1359 of file wavpackenc.c.

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

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 1495 of file wavpackenc.c.

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

static void sort_stereo ( WavPackEncodeContext s,
WavPackExtraInfo info 
)
static

Definition at line 1547 of file wavpackenc.c.

Referenced by analyze_stereo().

static void delta_stereo ( WavPackEncodeContext s,
WavPackExtraInfo info 
)
static

Definition at line 1604 of file wavpackenc.c.

Referenced by analyze_stereo().

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

Definition at line 1664 of file wavpackenc.c.

Referenced by analyze_stereo().

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

Definition at line 1737 of file wavpackenc.c.

Referenced by 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 1806 of file wavpackenc.c.

Referenced by wavpack_encode_block().

static void encode_flush ( WavPackEncodeContext s)
static

Definition at line 1966 of file wavpackenc.c.

Referenced by wavpack_encode_block(), and wavpack_encode_sample().

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

Definition at line 2039 of file wavpackenc.c.

Referenced by wavpack_encode_block().

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

Definition at line 2132 of file wavpackenc.c.

Referenced by wavpack_encode_block().

static void pack_float_sample ( WavPackEncodeContext s,
int32_t sample 
)
static

Definition at line 2157 of file wavpackenc.c.

Referenced by pack_float().

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

Definition at line 2212 of file wavpackenc.c.

Referenced by wavpack_encode_block().

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

Definition at line 2229 of file wavpackenc.c.

Referenced by wavpack_encode_block().

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

Definition at line 2348 of file wavpackenc.c.

Referenced by wavpack_encode_block().

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

Definition at line 2457 of file wavpackenc.c.

Referenced by 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 2466 of file wavpackenc.c.

Referenced by wavpack_encode_frame().

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

Definition at line 2810 of file wavpackenc.c.

Referenced by wavpack_encode_frame().

static void set_samplerate ( WavPackEncodeContext s)
static

Definition at line 2839 of file wavpackenc.c.

Referenced by wavpack_encode_frame().

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

Definition at line 2851 of file wavpackenc.c.

static av_cold int wavpack_encode_close ( AVCodecContext avctx)
static

Definition at line 2911 of file wavpackenc.c.

Variable Documentation

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 },
}
#define NULL
Definition: coverity.c:32
#define OFFSET(x)
Definition: wavpackenc.c:2945
#define FLAGS
Definition: wavpackenc.c:2946

Definition at line 2947 of file wavpackenc.c.

const AVClass wavpack_encoder_class
static
Initial value:
= {
.class_name = "WavPack encoder",
.item_name = av_default_item_name,
.option = options,
}
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
static const AVOption options[]
Definition: wavpackenc.c:2947

Definition at line 2953 of file wavpackenc.c.

AVCodec ff_wavpack_encoder
Initial value:
= {
.name = "wavpack",
.long_name = NULL_IF_CONFIG_SMALL("WavPack"),
.priv_data_size = sizeof(WavPackEncodeContext),
.priv_class = &wavpack_encoder_class,
}
float, planar
Definition: samplefmt.h:69
static av_cold int wavpack_encode_close(AVCodecContext *avctx)
Definition: wavpackenc.c:2911
static int wavpack_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
Definition: wavpackenc.c:2851
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
static av_cold int wavpack_encode_init(AVCodecContext *avctx)
Definition: wavpackenc.c:125
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
#define AV_CODEC_CAP_SMALL_LAST_FRAME
Codec can be fed a final frame with a smaller size.
Definition: codec.h:80
signed 32 bits, planar
Definition: samplefmt.h:68
unsigned 8 bits, planar
Definition: samplefmt.h:66
AVSampleFormat
Audio sample formats.
Definition: samplefmt.h:58
static const AVClass wavpack_encoder_class
Definition: wavpackenc.c:2953
static enum AVSampleFormat sample_fmts[]
Definition: adpcmenc.c:731
signed 16 bits, planar
Definition: samplefmt.h:67

Definition at line 2960 of file wavpackenc.c.