55 static const char bgr_chlist[4] = {
'B',
'G',
'R',
'A' };
112 switch (
s->compression) {
116 s->scanline_height = 1;
117 s->nb_scanlines = avctx->
height;
120 s->scanline_height = 16;
121 s->nb_scanlines = (avctx->
height +
s->scanline_height - 1) /
s->scanline_height;
127 s->scanline =
av_calloc(
s->nb_scanlines,
sizeof(*
s->scanline));
138 for (
int y = 0; y <
s->nb_scanlines &&
s->scanline; y++) {
153 const ptrdiff_t half_size = (
size + 1) / 2;
157 for (ptrdiff_t
i = 0;
i < half_size;
i++) {
167 for (ptrdiff_t
i = 1;
i <
size;
i++) {
168 int d =
src[
i] - p + 384;
178 int64_t
i = 0, o = 0,
run = 1,
copy = 0;
180 while (
i < in_size) {
191 if (
i +
run < in_size)
200 for (
int x = 0; x <
copy; x++)
216 const int64_t element_size =
s->pixel_type ==
EXR_HALF ? 2LL : 4LL;
220 int64_t tmp_size = element_size *
s->planes *
frame->
width;
221 int64_t max_compressed_size = tmp_size * 3 / 2;
235 switch (
s->pixel_type) {
237 for (
int p = 0; p <
s->planes; p++) {
238 int ch =
s->ch_order[p];
245 for (
int p = 0; p <
s->planes; p++) {
246 int ch =
s->ch_order[p];
260 scanline->
tmp, tmp_size);
274 const int64_t element_size =
s->pixel_type ==
EXR_HALF ? 2LL : 4LL;
276 for (
int y = 0; y <
s->nb_scanlines; y++) {
278 const int scanline_height =
FFMIN(
s->scanline_height,
frame->
height - y *
s->scanline_height);
279 int64_t tmp_size = element_size *
s->planes *
frame->
width * scanline_height;
280 int64_t max_compressed_size = tmp_size * 3 / 2;
281 unsigned long actual_size, source_size;
295 switch (
s->pixel_type) {
297 for (
int l = 0; l < scanline_height; l++) {
298 const int scanline_size =
frame->
width * 4 *
s->planes;
300 for (
int p = 0; p <
s->planes; p++) {
301 int ch =
s->ch_order[p];
310 for (
int l = 0; l < scanline_height; l++) {
311 const int scanline_size =
frame->
width * 2 *
s->planes;
313 for (
int p = 0; p <
s->planes; p++) {
314 int ch =
s->ch_order[p];
327 source_size = tmp_size;
328 actual_size = max_compressed_size;
330 scanline->
tmp, source_size);
353 avctx->
height, 64) * 3LL / 2;
360 bytestream2_put_le32(pb, 20000630);
361 bytestream2_put_byte(pb, 2);
362 bytestream2_put_le24(pb, 0);
364 bytestream2_put_le32(pb,
s->planes * 18 + 1);
366 for (
int p = 0; p <
s->planes; p++) {
367 bytestream2_put_byte(pb,
s->ch_names[p]);
368 bytestream2_put_byte(pb, 0);
369 bytestream2_put_le32(pb,
s->pixel_type);
370 bytestream2_put_le32(pb, 0);
371 bytestream2_put_le32(pb, 1);
372 bytestream2_put_le32(pb, 1);
374 bytestream2_put_byte(pb, 0);
377 bytestream2_put_le32(pb, 1);
378 bytestream2_put_byte(pb,
s->compression);
381 bytestream2_put_le32(pb, 16);
382 bytestream2_put_le32(pb, 0);
383 bytestream2_put_le32(pb, 0);
384 bytestream2_put_le32(pb, avctx->
width - 1);
385 bytestream2_put_le32(pb, avctx->
height - 1);
388 bytestream2_put_le32(pb, 16);
389 bytestream2_put_le32(pb, 0);
390 bytestream2_put_le32(pb, 0);
391 bytestream2_put_le32(pb, avctx->
width - 1);
392 bytestream2_put_le32(pb, avctx->
height - 1);
395 bytestream2_put_le32(pb, 1);
396 bytestream2_put_byte(pb, 0);
399 bytestream2_put_le32(pb, 8);
400 bytestream2_put_le64(pb, 0);
403 bytestream2_put_le32(pb, 4);
408 bytestream2_put_le32(pb, 4);
414 bytestream2_put_le32(pb, 8);
420 bytestream2_put_le32(pb, 4);
424 bytestream2_put_le32(pb, 4);
426 bytestream2_put_byte(pb, 0);
428 switch (
s->compression) {
443 switch (
s->compression) {
449 for (
int y = 0; y < avctx->
height; y++) {
450 bytestream2_put_le64(pb,
offset);
454 for (
int y = 0; y < avctx->
height; y++) {
455 bytestream2_put_le32(pb, y);
456 bytestream2_put_le32(pb,
s->planes * avctx->
width * 4);
457 for (
int p = 0; p <
s->planes; p++) {
458 int ch =
s->ch_order[p];
464 for (
int y = 0; y < avctx->
height; y++) {
465 bytestream2_put_le64(pb,
offset);
469 for (
int y = 0; y < avctx->
height; y++) {
470 bytestream2_put_le32(pb, y);
471 bytestream2_put_le32(pb,
s->planes * avctx->
width * 2);
472 for (
int p = 0; p <
s->planes; p++) {
473 int ch =
s->ch_order[p];
477 bytestream2_put_le16(pb,
float2half(
src[x],
s->basetable,
s->shifttable));
487 for (
int y = 0; y <
s->nb_scanlines; y++) {
490 bytestream2_put_le64(pb,
offset);
494 for (
int y = 0; y <
s->nb_scanlines; y++) {
497 bytestream2_put_le32(pb, y *
s->scanline_height);
515 #define OFFSET(x) offsetof(EXRContext, x)
516 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;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);return NULL;} return ac;} 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;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->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);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
simple assert() macros that are a bit more flexible than ISO C assert().
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Libavcodec external API header.
static av_cold int init(AVCodecContext *avctx)
static av_always_inline void bytestream2_init_writer(PutByteContext *p, uint8_t *buf, int buf_size)
static av_always_inline int bytestream2_tell_p(PutByteContext *p)
static av_always_inline unsigned int bytestream2_put_buffer(PutByteContext *p, const uint8_t *src, unsigned int size)
#define FFSWAP(type, a, b)
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
Check AVPacket size and/or allocate data.
static const uint8_t gbra_order[4]
static int encode_scanline_zip(EXRContext *s, const AVFrame *frame)
static int encode_init(AVCodecContext *avctx)
static const char bgr_chlist[4]
static void reorder_pixels(uint8_t *dst, const uint8_t *src, ptrdiff_t size)
static void predictor(uint8_t *src, ptrdiff_t size)
static const AVOption options[]
static const char abgr_chlist[4]
static const AVClass exr_class
static int encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
static int encode_scanline_rle(EXRContext *s, const AVFrame *frame)
static const uint8_t gbr_order[4]
static int encode_close(AVCodecContext *avctx)
static int64_t rle_compress(uint8_t *out, int64_t out_size, const uint8_t *in, int64_t in_size)
static void float2half_tables(uint16_t *basetable, uint8_t *shifttable)
static uint16_t float2half(uint32_t f, uint16_t *basetable, uint8_t *shifttable)
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
Same behaviour av_fast_malloc but the buffer has additional AV_INPUT_BUFFER_PADDING_SIZE at the end w...
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
void av_shrink_packet(AVPacket *pkt, int size)
Reduce packet size, correctly zeroing padding.
const char * av_default_item_name(void *ptr)
Return the context name.
static double av_q2d(AVRational a)
Convert an AVRational to a double.
void * av_calloc(size_t nmemb, size_t size)
Non-inlined equivalent of av_mallocz_array().
int av_image_get_buffer_size(enum AVPixelFormat pix_fmt, int width, int height, int align)
Return the size in bytes of the amount of data required to store an image with the given parameters.
#define LIBAVUTIL_VERSION_INT
static av_always_inline uint32_t av_float2int(float f)
Reinterpret a float as a 32-bit integer.
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
static enum AVPixelFormat pix_fmts[]
#define AV_PIX_FMT_GBRPF32
AVPixelFormat
Pixel format.
#define AV_PIX_FMT_GBRAPF32
Describe the class of an AVClass context structure.
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
main external API structure.
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
int width
picture width / height.
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown) That is the width of a pixel divided by the height of the pixel.
const char * name
Name of the codec implementation.
This structure describes decoded (raw) audio or video data.
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
This structure stores compressed data.
int flags
A combination of AV_PKT_FLAG values.
EXRScanlineData * scanline
unsigned int uncompressed_size
uint8_t * compressed_data
uint8_t * uncompressed_data
unsigned int compressed_size
static const uint8_t offset[127][2]
static void copy(const float *p1, float *p2, const int length)