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// Copyright 2020 Cloudinary. All rights reserved.
// SPDX-License-Identifier: BSD-2-Clause
#include "avif/internal.h"
#include "svt-av1/EbSvtAv1.h"
#include "svt-av1/EbSvtAv1Enc.h"
#include <string.h>
// The SVT_AV1_VERSION_MAJOR, SVT_AV1_VERSION_MINOR, SVT_AV1_VERSION_PATCHLEVEL, and
// SVT_AV1_CHECK_VERSION macros were added in SVT-AV1 v0.9.0. Define these macros for older
// versions of SVT-AV1.
#ifndef SVT_AV1_VERSION_MAJOR
#define SVT_AV1_VERSION_MAJOR SVT_VERSION_MAJOR
#define SVT_AV1_VERSION_MINOR SVT_VERSION_MINOR
#define SVT_AV1_VERSION_PATCHLEVEL SVT_VERSION_PATCHLEVEL
// clang-format off
#define SVT_AV1_CHECK_VERSION(major, minor, patch) \
(SVT_AV1_VERSION_MAJOR > (major) || \
(SVT_AV1_VERSION_MAJOR == (major) && SVT_AV1_VERSION_MINOR > (minor)) || \
(SVT_AV1_VERSION_MAJOR == (major) && SVT_AV1_VERSION_MINOR == (minor) && \
SVT_AV1_VERSION_PATCHLEVEL >= (patch)))
// clang-format on
#endif
#if !SVT_AV1_CHECK_VERSION(0, 9, 0)
#define STR_HELPER(x) #x
#define STR(x) STR_HELPER(x)
#define SVT_FULL_VERSION "v" STR(SVT_AV1_VERSION_MAJOR) "." STR(SVT_AV1_VERSION_MINOR) "." STR(SVT_AV1_VERSION_PATCHLEVEL)
#endif
typedef struct avifCodecInternal
{
/* SVT-AV1 Encoder Handle */
EbComponentType * svt_encoder;
EbSvtAv1EncConfiguration svt_config;
} avifCodecInternal;
static avifBool allocate_svt_buffers(EbBufferHeaderType ** input_buf);
static avifResult dequeue_frame(avifCodec * codec, avifCodecEncodeOutput * output, avifBool done_sending_pics);
static avifResult svtCodecEncodeImage(avifCodec * codec,
avifEncoder * encoder,
const avifImage * image,
avifBool alpha,
int tileRowsLog2,
int tileColsLog2,
avifEncoderChanges encoderChanges,
uint32_t addImageFlags,
avifCodecEncodeOutput * output)
{
// SVT-AV1 does not support changing encoder settings.
if (encoderChanges) {
return AVIF_RESULT_NOT_IMPLEMENTED;
}
// SVT-AV1 does not support changing image dimensions.
if (codec->internal->svt_encoder != NULL) {
if ((codec->internal->svt_config.source_width != image->width) || (codec->internal->svt_config.source_height != image->height)) {
return AVIF_RESULT_NOT_IMPLEMENTED;
}
}
avifResult result = AVIF_RESULT_UNKNOWN_ERROR;
EbColorFormat color_format = EB_YUV420;
EbBufferHeaderType * input_buffer = NULL;
EbErrorType res = EB_ErrorNone;
int y_shift = 0;
// EbColorRange svt_range;
if (alpha) {
// svt_range = EB_CR_FULL_RANGE;
y_shift = 1;
} else {
// svt_range = (image->yuvRange == AVIF_RANGE_FULL) ? EB_CR_FULL_RANGE : EB_CR_STUDIO_RANGE;
switch (image->yuvFormat) {
case AVIF_PIXEL_FORMAT_YUV444:
color_format = EB_YUV444;
break;
case AVIF_PIXEL_FORMAT_YUV422:
color_format = EB_YUV422;
break;
case AVIF_PIXEL_FORMAT_YUV420:
color_format = EB_YUV420;
y_shift = 1;
break;
case AVIF_PIXEL_FORMAT_YUV400:
case AVIF_PIXEL_FORMAT_NONE:
case AVIF_PIXEL_FORMAT_COUNT:
default:
return AVIF_RESULT_UNKNOWN_ERROR;
}
}
if (codec->internal->svt_encoder == NULL) {
EbSvtAv1EncConfiguration * svt_config = &codec->internal->svt_config;
// Zero-initialize svt_config because svt_av1_enc_init_handle() does not set many fields of svt_config.
// See https://gitlab.com/AOMediaCodec/SVT-AV1/-/issues/1697.
memset(svt_config, 0, sizeof(EbSvtAv1EncConfiguration));
res = svt_av1_enc_init_handle(&codec->internal->svt_encoder, NULL, svt_config);
if (res != EB_ErrorNone) {
goto cleanup;
}
svt_config->encoder_color_format = color_format;
svt_config->encoder_bit_depth = (uint8_t)image->depth;
#if !SVT_AV1_CHECK_VERSION(0, 9, 0)
svt_config->is_16bit_pipeline = image->depth > 8;
#endif
// Follow comment in svt header: set if input is HDR10 BT2020 using SMPTE ST2084.
svt_config->high_dynamic_range_input = (image->depth == 10 && image->colorPrimaries == AVIF_COLOR_PRIMARIES_BT2020 &&
image->transferCharacteristics == AVIF_TRANSFER_CHARACTERISTICS_SMPTE2084 &&
image->matrixCoefficients == AVIF_MATRIX_COEFFICIENTS_BT2020_NCL);
svt_config->source_width = image->width;
svt_config->source_height = image->height;
svt_config->logical_processors = encoder->maxThreads;
svt_config->enable_adaptive_quantization = AVIF_FALSE;
// disable 2-pass
#if SVT_AV1_CHECK_VERSION(0, 9, 0)
svt_config->rc_stats_buffer = (SvtAv1FixedBuf) { NULL, 0 };
#else
svt_config->rc_firstpass_stats_out = AVIF_FALSE;
svt_config->rc_twopass_stats_in = (SvtAv1FixedBuf) { NULL, 0 };
#endif
if (alpha) {
svt_config->min_qp_allowed = AVIF_CLAMP(encoder->minQuantizerAlpha, 0, 63);
svt_config->max_qp_allowed = AVIF_CLAMP(encoder->maxQuantizerAlpha, 0, 63);
} else {
svt_config->min_qp_allowed = AVIF_CLAMP(encoder->minQuantizer, 0, 63);
svt_config->qp = AVIF_CLAMP(encoder->maxQuantizer, 0, 63);
}
if (tileRowsLog2 != 0) {
svt_config->tile_rows = tileRowsLog2;
}
if (tileColsLog2 != 0) {
svt_config->tile_columns = tileColsLog2;
}
if (encoder->speed != AVIF_SPEED_DEFAULT) {
int speed = AVIF_CLAMP(encoder->speed, 0, 8);
svt_config->enc_mode = (int8_t)speed;
}
if (color_format == EB_YUV422 || image->depth > 10) {
svt_config->profile = PROFESSIONAL_PROFILE;
} else if (color_format == EB_YUV444) {
svt_config->profile = HIGH_PROFILE;
}
res = svt_av1_enc_set_parameter(codec->internal->svt_encoder, svt_config);
if (res == EB_ErrorBadParameter) {
goto cleanup;
}
res = svt_av1_enc_init(codec->internal->svt_encoder);
if (res != EB_ErrorNone) {
goto cleanup;
}
}
if (!allocate_svt_buffers(&input_buffer)) {
goto cleanup;
}
EbSvtIOFormat * input_picture_buffer = (EbSvtIOFormat *)input_buffer->p_buffer;
int bytesPerPixel = image->depth > 8 ? 2 : 1;
if (alpha) {
input_picture_buffer->y_stride = image->alphaRowBytes / bytesPerPixel;
input_picture_buffer->luma = image->alphaPlane;
input_buffer->n_filled_len = image->alphaRowBytes * image->height;
} else {
input_picture_buffer->y_stride = image->yuvRowBytes[0] / bytesPerPixel;
input_picture_buffer->luma = image->yuvPlanes[0];
input_buffer->n_filled_len = image->yuvRowBytes[0] * image->height;
uint32_t uvHeight = (image->height + y_shift) >> y_shift;
input_picture_buffer->cb = image->yuvPlanes[1];
input_buffer->n_filled_len += image->yuvRowBytes[1] * uvHeight;
input_picture_buffer->cr = image->yuvPlanes[2];
input_buffer->n_filled_len += image->yuvRowBytes[2] * uvHeight;
input_picture_buffer->cb_stride = image->yuvRowBytes[1] / bytesPerPixel;
input_picture_buffer->cr_stride = image->yuvRowBytes[2] / bytesPerPixel;
}
input_buffer->flags = 0;
input_buffer->pts = 0;
EbAv1PictureType frame_type = EB_AV1_INVALID_PICTURE;
if (addImageFlags & AVIF_ADD_IMAGE_FLAG_FORCE_KEYFRAME) {
frame_type = EB_AV1_KEY_PICTURE;
}
input_buffer->pic_type = frame_type;
res = svt_av1_enc_send_picture(codec->internal->svt_encoder, input_buffer);
if (res != EB_ErrorNone) {
goto cleanup;
}
result = dequeue_frame(codec, output, AVIF_FALSE);
cleanup:
if (input_buffer) {
if (input_buffer->p_buffer) {
avifFree(input_buffer->p_buffer);
}
avifFree(input_buffer);
}
return result;
}
static avifBool svtCodecEncodeFinish(avifCodec * codec, avifCodecEncodeOutput * output)
{
EbErrorType ret = EB_ErrorNone;
EbBufferHeaderType input_buffer;
input_buffer.n_alloc_len = 0;
input_buffer.n_filled_len = 0;
input_buffer.n_tick_count = 0;
input_buffer.p_app_private = NULL;
input_buffer.flags = EB_BUFFERFLAG_EOS;
input_buffer.p_buffer = NULL;
input_buffer.metadata = NULL;
// flush
ret = svt_av1_enc_send_picture(codec->internal->svt_encoder, &input_buffer);
if (ret != EB_ErrorNone)
return AVIF_FALSE;
return (dequeue_frame(codec, output, AVIF_TRUE) == AVIF_RESULT_OK);
}
const char * avifCodecVersionSvt(void)
{
#if SVT_AV1_CHECK_VERSION(0, 9, 0)
return svt_av1_get_version();
#else
return SVT_FULL_VERSION;
#endif
}
static void svtCodecDestroyInternal(avifCodec * codec)
{
if (codec->internal->svt_encoder) {
svt_av1_enc_deinit(codec->internal->svt_encoder);
svt_av1_enc_deinit_handle(codec->internal->svt_encoder);
codec->internal->svt_encoder = NULL;
}
avifFree(codec->internal);
}
avifCodec * avifCodecCreateSvt(void)
{
avifCodec * codec = (avifCodec *)avifAlloc(sizeof(avifCodec));
memset(codec, 0, sizeof(struct avifCodec));
codec->encodeImage = svtCodecEncodeImage;
codec->encodeFinish = svtCodecEncodeFinish;
codec->destroyInternal = svtCodecDestroyInternal;
codec->internal = (struct avifCodecInternal *)avifAlloc(sizeof(avifCodecInternal));
memset(codec->internal, 0, sizeof(struct avifCodecInternal));
return codec;
}
static avifBool allocate_svt_buffers(EbBufferHeaderType ** input_buf)
{
*input_buf = avifAlloc(sizeof(EbBufferHeaderType));
if (!(*input_buf)) {
return AVIF_FALSE;
}
(*input_buf)->p_buffer = avifAlloc(sizeof(EbSvtIOFormat));
if (!(*input_buf)->p_buffer) {
return AVIF_FALSE;
}
memset((*input_buf)->p_buffer, 0, sizeof(EbSvtIOFormat));
(*input_buf)->size = sizeof(EbBufferHeaderType);
(*input_buf)->p_app_private = NULL;
(*input_buf)->pic_type = EB_AV1_INVALID_PICTURE;
(*input_buf)->metadata = NULL;
return AVIF_TRUE;
}
static avifResult dequeue_frame(avifCodec * codec, avifCodecEncodeOutput * output, avifBool done_sending_pics)
{
EbErrorType res;
int encode_at_eos = 0;
do {
EbBufferHeaderType * output_buf = NULL;
res = svt_av1_enc_get_packet(codec->internal->svt_encoder, &output_buf, (uint8_t)done_sending_pics);
if (output_buf != NULL) {
encode_at_eos = ((output_buf->flags & EB_BUFFERFLAG_EOS) == EB_BUFFERFLAG_EOS);
if (output_buf->p_buffer && (output_buf->n_filled_len > 0)) {
avifCodecEncodeOutputAddSample(output,
output_buf->p_buffer,
output_buf->n_filled_len,
(output_buf->pic_type == EB_AV1_KEY_PICTURE));
}
svt_av1_enc_release_out_buffer(&output_buf);
}
output_buf = NULL;
} while (res == EB_ErrorNone && !encode_at_eos);
if (!done_sending_pics && ((res == EB_ErrorNone) || (res == EB_NoErrorEmptyQueue)))
return AVIF_RESULT_OK;
return (res == EB_ErrorNone ? AVIF_RESULT_OK : AVIF_RESULT_UNKNOWN_ERROR);
}