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exr.c File Reference

OpenEXR decoder. More...

#include <float.h>
#include <zlib.h>
#include "libavutil/imgutils.h"
#include "libavutil/intfloat.h"
#include "libavutil/opt.h"
#include "avcodec.h"
#include "bytestream.h"
#include "get_bits.h"
#include "internal.h"
#include "mathops.h"
#include "thread.h"

Go to the source code of this file.

Data Structures

struct  EXRChannel
 
struct  EXRThreadData
 
struct  EXRContext
 
struct  HufDec
 

Macros

#define HALF_FLOAT_MIN_BIASED_EXP_AS_SINGLE_FP_EXP   0x38000000
 
#define HALF_FLOAT_MAX_BIASED_EXP_AS_SINGLE_FP_EXP   0x47800000
 
#define FLOAT_MAX_BIASED_EXP   (0xFF << 23)
 
#define HALF_FLOAT_MAX_BIASED_EXP   (0x1F << 10)
 
#define USHORT_RANGE   (1 << 16)
 
#define BITMAP_SIZE   (1 << 13)
 
#define HUF_ENCBITS   16
 
#define HUF_DECBITS   14
 
#define HUF_ENCSIZE   ((1 << HUF_ENCBITS) + 1)
 
#define HUF_DECSIZE   (1 << HUF_DECBITS)
 
#define HUF_DECMASK   (HUF_DECSIZE - 1)
 
#define SHORT_ZEROCODE_RUN   59
 
#define LONG_ZEROCODE_RUN   63
 
#define SHORTEST_LONG_RUN   (2 + LONG_ZEROCODE_RUN - SHORT_ZEROCODE_RUN)
 
#define LONGEST_LONG_RUN   (255 + SHORTEST_LONG_RUN)
 
#define get_char(c, lc, gb)
 
#define get_code(po, rlc, c, lc, gb, out, oe)
 
#define NBITS   16
 
#define A_OFFSET   (1 << (NBITS - 1))
 
#define MOD_MASK   ((1 << NBITS) - 1)
 
#define OFFSET(x)   offsetof(EXRContext, x)
 
#define VD   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
 

Enumerations

enum  ExrCompr {
  EXR_RAW, EXR_RLE, EXR_ZIP1, EXR_ZIP16,
  EXR_PIZ, EXR_PXR24, EXR_B44, EXR_B44A,
  EXR_UNKN
}
 
enum  ExrPixelType { EXR_UINT, EXR_HALF, EXR_FLOAT, EXR_UNKNOWN }
 

Functions

static union av_intfloat32 exr_half2float (uint16_t hf)
 Convert a half float as a uint16_t into a full float. More...
 
static uint16_t exr_flt2uint (uint32_t v)
 Convert from 32-bit float as uint32_t to uint16_t. More...
 
static uint16_t exr_halflt2uint (uint16_t v)
 Convert from 16-bit float as uint16_t to uint16_t. More...
 
static void predictor (uint8_t *src, int size)
 
static void reorder_pixels (uint8_t *src, uint8_t *dst, int size)
 
static int zip_uncompress (const uint8_t *src, int compressed_size, int uncompressed_size, EXRThreadData *td)
 
static int rle_uncompress (const uint8_t *src, int compressed_size, int uncompressed_size, EXRThreadData *td)
 
static uint16_t reverse_lut (const uint8_t *bitmap, uint16_t *lut)
 
static void apply_lut (const uint16_t *lut, uint16_t *dst, int dsize)
 
static void huf_canonical_code_table (uint64_t *hcode)
 
static int huf_unpack_enc_table (GetByteContext *gb, int32_t im, int32_t iM, uint64_t *hcode)
 
static int huf_build_dec_table (const uint64_t *hcode, int im, int iM, HufDec *hdecod)
 
static int huf_decode (const uint64_t *hcode, const HufDec *hdecod, GetByteContext *gb, int nbits, int rlc, int no, uint16_t *out)
 
static int huf_uncompress (GetByteContext *gb, uint16_t *dst, int dst_size)
 
static void wdec14 (uint16_t l, uint16_t h, uint16_t *a, uint16_t *b)
 
static void wdec16 (uint16_t l, uint16_t h, uint16_t *a, uint16_t *b)
 
static void wav_decode (uint16_t *in, int nx, int ox, int ny, int oy, uint16_t mx)
 
static int piz_uncompress (EXRContext *s, const uint8_t *src, int ssize, int dsize, EXRThreadData *td)
 
static int pxr24_uncompress (EXRContext *s, const uint8_t *src, int compressed_size, int uncompressed_size, EXRThreadData *td)
 
static int decode_block (AVCodecContext *avctx, void *tdata, int jobnr, int threadnr)
 
static int check_header_variable (EXRContext *s, const char *value_name, const char *value_type, unsigned int minimum_length)
 Check if the variable name corresponds to its data type. More...
 
static int decode_header (EXRContext *s)
 
static int decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
 
static av_cold int decode_init (AVCodecContext *avctx)
 
static int decode_init_thread_copy (AVCodecContext *avctx)
 
static av_cold int decode_end (AVCodecContext *avctx)
 

Variables

static const AVOption options []
 
static const AVClass exr_class
 
AVCodec ff_exr_decoder
 

Detailed Description

OpenEXR decoder.

Author
Jimmy Christensen

For more information on the OpenEXR format, visit: http://openexr.com/

exr_flt2uint() and exr_halflt2uint() is credited to Reimar Döffinger. exr_half2float() is credited to Aaftab Munshi, Dan Ginsburg, Dave Shreiner.

Definition in file exr.c.

Macro Definition Documentation

#define HALF_FLOAT_MIN_BIASED_EXP_AS_SINGLE_FP_EXP   0x38000000

Definition at line 118 of file exr.c.

Referenced by exr_half2float().

#define HALF_FLOAT_MAX_BIASED_EXP_AS_SINGLE_FP_EXP   0x47800000

Definition at line 122 of file exr.c.

#define FLOAT_MAX_BIASED_EXP   (0xFF << 23)

Definition at line 125 of file exr.c.

Referenced by exr_half2float().

#define HALF_FLOAT_MAX_BIASED_EXP   (0x1F << 10)

Definition at line 127 of file exr.c.

Referenced by exr_half2float().

#define USHORT_RANGE   (1 << 16)

Definition at line 312 of file exr.c.

Referenced by reverse_lut().

#define BITMAP_SIZE   (1 << 13)

Definition at line 313 of file exr.c.

Referenced by piz_uncompress().

#define HUF_ENCBITS   16

Definition at line 338 of file exr.c.

#define HUF_DECBITS   14

Definition at line 339 of file exr.c.

Referenced by huf_build_dec_table(), and huf_decode().

#define HUF_ENCSIZE   ((1 << HUF_ENCBITS) + 1)

Definition at line 341 of file exr.c.

Referenced by huf_canonical_code_table(), and huf_uncompress().

#define HUF_DECSIZE   (1 << HUF_DECBITS)

Definition at line 342 of file exr.c.

Referenced by huf_uncompress().

#define HUF_DECMASK   (HUF_DECSIZE - 1)

Definition at line 343 of file exr.c.

Referenced by huf_decode().

#define SHORT_ZEROCODE_RUN   59

Definition at line 374 of file exr.c.

Referenced by huf_unpack_enc_table().

#define LONG_ZEROCODE_RUN   63

Definition at line 375 of file exr.c.

Referenced by huf_unpack_enc_table().

#define SHORTEST_LONG_RUN   (2 + LONG_ZEROCODE_RUN - SHORT_ZEROCODE_RUN)

Definition at line 376 of file exr.c.

Referenced by huf_unpack_enc_table().

#define LONGEST_LONG_RUN   (255 + SHORTEST_LONG_RUN)

Definition at line 377 of file exr.c.

#define get_char (   c,
  lc,
  gb 
)
Value:
{ \
c = (c << 8) | bytestream2_get_byte(gb); \
lc += 8; \
}
c
static double c[64]
Definition: vsrc_mptestsrc.c:87

Definition at line 456 of file exr.c.

Referenced by huf_decode().

#define get_code (   po,
  rlc,
  c,
  lc,
  gb,
  out,
  oe 
)
Value:
{ \
if (po == rlc) { \
if (lc < 8) \
get_char(c, lc, gb); \
lc -= 8; \
\
cs = c >> lc; \
\
if (out + cs > oe) \
return AVERROR_INVALIDDATA; \
\
s = out[-1]; \
\
while (cs-- > 0) \
*out++ = s; \
} else if (out < oe) { \
*out++ = po; \
} else { \
return AVERROR_INVALIDDATA; \
} \
}
s
const char * s
Definition: avisynth_c.h:631
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
get_char
#define get_char(c, lc, gb)
Definition: exr.c:456
return
return
Definition: audio_convert.c:415
if
if(ret< 0)
Definition: vf_mcdeint.c:280
c
static double c[64]
Definition: vsrc_mptestsrc.c:87
out
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> out
Definition: audio_convert.c:194

Definition at line 462 of file exr.c.

Referenced by huf_decode().

#define NBITS   16

Definition at line 617 of file exr.c.

#define A_OFFSET   (1 << (NBITS - 1))

Definition at line 618 of file exr.c.

Referenced by wdec16().

#define MOD_MASK   ((1 << NBITS) - 1)

Definition at line 619 of file exr.c.

Referenced by wdec16().

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

Definition at line 1423 of file exr.c.

#define VD   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM

Definition at line 1424 of file exr.c.

Enumeration Type Documentation

enum ExrCompr
Enumerator
EXR_RAW 
EXR_RLE 
EXR_ZIP1 
EXR_ZIP16 
EXR_PIZ 
EXR_PXR24 
EXR_B44 
EXR_B44A 
EXR_UNKN 

Definition at line 48 of file exr.c.

enum ExrPixelType
Enumerator
EXR_UINT 
EXR_HALF 
EXR_FLOAT 
EXR_UNKNOWN 

Definition at line 60 of file exr.c.

Function Documentation

static union av_intfloat32 exr_half2float ( uint16_t  hf)
static

Convert a half float as a uint16_t into a full float.

Parameters
hfhalf float as uint16_t
Returns
float value

Definition at line 136 of file exr.c.

Referenced by decode_init().

static uint16_t exr_flt2uint ( uint32_t  v)
inlinestatic

Convert from 32-bit float as uint32_t to uint16_t.

Parameters
v32-bit float
Returns
normalized 16-bit unsigned int

Definition at line 187 of file exr.c.

Referenced by decode_block(), and decode_init().

static uint16_t exr_halflt2uint ( uint16_t  v)
inlinestatic

Convert from 16-bit float as uint16_t to uint16_t.

Parameters
v16-bit float
Returns
normalized 16-bit unsigned int

Definition at line 207 of file exr.c.

Referenced by decode_block(), and decode_init().

static void predictor ( uint8_t *  src,
int  size 
)
static

Definition at line 220 of file exr.c.

Referenced by adpcm_compress_trellis(), adpcm_decode_frame(), adpcm_encode_frame(), adpcm_ima_expand_nibble(), adpcm_ima_oki_expand_nibble(), adpcm_ima_qt_expand_nibble(), adpcm_ima_wav_expand_nibble(), adpcm_ms_compress_sample(), adpcm_ms_expand_nibble(), decode_audio_s16(), dpcm_decode_frame(), ff_mjpeg_decode_sos(), ljpeg_decode_rgb_scan(), ljpeg_encode_bgr(), ljpeg_encode_yuv(), rle_uncompress(), tta_decode_frame(), and zip_uncompress().

static void reorder_pixels ( uint8_t *  src,
uint8_t *  dst,
int  size 
)
static

Definition at line 232 of file exr.c.

Referenced by rle_uncompress(), and zip_uncompress().

static int zip_uncompress ( const uint8_t *  src,
int  compressed_size,
int  uncompressed_size,
EXRThreadData *  td 
)
static

Definition at line 252 of file exr.c.

Referenced by decode_block().

static int rle_uncompress ( const uint8_t *  src,
int  compressed_size,
int  uncompressed_size,
EXRThreadData *  td 
)
static

Definition at line 267 of file exr.c.

Referenced by decode_block().

static uint16_t reverse_lut ( const uint8_t *  bitmap,
uint16_t *  lut 
)
static

Definition at line 315 of file exr.c.

Referenced by piz_uncompress().

static void apply_lut ( const uint16_t *  lut,
uint16_t *  dst,
int  dsize 
)
static

Definition at line 330 of file exr.c.

Referenced by piz_uncompress().

static void huf_canonical_code_table ( uint64_t *  hcode)
static

Definition at line 351 of file exr.c.

Referenced by huf_unpack_enc_table().

static int huf_unpack_enc_table ( GetByteContext *  gb,
int32_t  im,
int32_t  iM,
uint64_t *  hcode 
)
static

Definition at line 379 of file exr.c.

Referenced by huf_uncompress().

static int huf_build_dec_table ( const uint64_t *  hcode,
int  im,
int  iM,
HufDec *  hdecod 
)
static

Definition at line 419 of file exr.c.

Referenced by huf_uncompress().

static int huf_decode ( const uint64_t *  hcode,
const HufDec *  hdecod,
GetByteContext *  gb,
int  nbits,
int  rlc,
int  no,
uint16_t *  out 
)
static

Definition at line 485 of file exr.c.

Referenced by huf_uncompress().

static int huf_uncompress ( GetByteContext *  gb,
uint16_t *  dst,
int  dst_size 
)
static

Definition at line 553 of file exr.c.

Referenced by piz_uncompress().

static void wdec14 ( uint16_t  l,
uint16_t  h,
uint16_t *  a,
uint16_t *  b 
)
inlinestatic

Definition at line 604 of file exr.c.

Referenced by wav_decode().

static void wdec16 ( uint16_t  l,
uint16_t  h,
uint16_t *  a,
uint16_t *  b 
)
inlinestatic

Definition at line 621 of file exr.c.

Referenced by wav_decode().

static void wav_decode ( uint16_t *  in,
int  nx,
int  ox,
int  ny,
int  oy,
uint16_t  mx 
)
static

Definition at line 631 of file exr.c.

Referenced by piz_uncompress().

static int piz_uncompress ( EXRContext *  s,
const uint8_t *  src,
int  ssize,
int  dsize,
EXRThreadData *  td 
)
static

Definition at line 710 of file exr.c.

Referenced by decode_block().

static int pxr24_uncompress ( EXRContext *  s,
const uint8_t *  src,
int  compressed_size,
int  uncompressed_size,
EXRThreadData *  td 
)
static

Definition at line 773 of file exr.c.

Referenced by decode_block().

static int decode_block ( AVCodecContext *  avctx,
void *  tdata,
int  jobnr,
int  threadnr 
)
static

Definition at line 827 of file exr.c.

Referenced by decode_frame().

static int check_header_variable ( EXRContext *  s,
const char *  value_name,
const char *  value_type,
unsigned int  minimum_length 
)
static

Check if the variable name corresponds to its data type.

Parameters
sthe EXRContext
value_namename of the variable to check
value_typetype of the variable to check
minimum_lengthminimum length of the variable data
Returns
bytes to read containing variable data -1 if variable is not found 0 if buffer ended prematurely

Definition at line 979 of file exr.c.

Referenced by decode_header().

static int decode_header ( EXRContext *  s)
static

Definition at line 1008 of file exr.c.

Referenced by decode_frame().

static int decode_frame ( AVCodecContext *  avctx,
void *  data,
int *  got_frame,
AVPacket *  avpkt 
)
static

Definition at line 1257 of file exr.c.

static av_cold int decode_init ( AVCodecContext *  avctx)
static

Definition at line 1361 of file exr.c.

static int decode_init_thread_copy ( AVCodecContext *  avctx)
static

Definition at line 1394 of file exr.c.

static av_cold int decode_end ( AVCodecContext *  avctx)
static

Definition at line 1405 of file exr.c.

Variable Documentation

const AVOption options[]
static
Initial value:
= {
{ "layer", "Set the decoding layer", OFFSET(layer),
AV_OPT_TYPE_STRING, { .str = "" }, 0, 0, VD },
{ "gamma", "Set the float gamma value when decoding", OFFSET(gamma),
AV_OPT_TYPE_FLOAT, { .dbl = 1.0f }, 0.001, FLT_MAX, VD },
{ NULL },
}
NULL
#define NULL
Definition: coverity.c:32
VD
#define VD
Definition: exr.c:1424
OFFSET
#define OFFSET(x)
Definition: exr.c:1423
AV_OPT_TYPE_STRING
Definition: opt.h:227
AV_OPT_TYPE_FLOAT
Definition: opt.h:226

Definition at line 1425 of file exr.c.

const AVClass exr_class
static
Initial value:
= {
.class_name = "EXR",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
}
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:62
options
static const AVOption options[]
Definition: exr.c:1425
av_default_item_name
av_default_item_name
Definition: libopenh264enc.c:59

Definition at line 1433 of file exr.c.

AVCodec ff_exr_decoder
Initial value:
= {
.name = "exr",
.long_name = NULL_IF_CONFIG_SMALL("OpenEXR image"),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_EXR,
.priv_data_size = sizeof(EXRContext),
.init = decode_init,
.init_thread_copy = ONLY_IF_THREADS_ENABLED(decode_init_thread_copy),
.close = decode_end,
.decode = decode_frame,
.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS |
AV_CODEC_CAP_SLICE_THREADS,
.priv_class = &exr_class,
}
init
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
AV_CODEC_ID_EXR
Definition: avcodec.h:302
decode_init_thread_copy
static int decode_init_thread_copy(AVCodecContext *avctx)
Definition: exr.c:1394
decode_init
static av_cold int decode_init(AVCodecContext *avctx)
Definition: exr.c:1361
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:175
AV_CODEC_CAP_FRAME_THREADS
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: avcodec.h:920
ONLY_IF_THREADS_ENABLED
#define ONLY_IF_THREADS_ENABLED(x)
Define a function with only the non-default version specified.
Definition: internal.h:214
AV_CODEC_CAP_SLICE_THREADS
#define AV_CODEC_CAP_SLICE_THREADS
Codec supports slice-based (or partition-based) multithreading.
Definition: avcodec.h:924
decode_end
static av_cold int decode_end(AVCodecContext *avctx)
Definition: exr.c:1405
EXRContext
Definition: exr.c:83
init_thread_copy
static int init_thread_copy(AVCodecContext *avctx)
Definition: alac.c:646
AVMEDIA_TYPE_VIDEO
Definition: avutil.h:193
decode_frame
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: exr.c:1257
AV_CODEC_CAP_DR1
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:857
exr_class
static const AVClass exr_class
Definition: exr.c:1433

Definition at line 1440 of file exr.c.

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