feat: imagorvideo init

This commit is contained in:
Adrian Shum 2022-09-08 20:44:10 +08:00
commit 2451fa1b5a
20 changed files with 2601 additions and 0 deletions

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**/*~
.git
.env
.idea
bin
tmp/
.DS_Store
.vscode
bin/imagorvideo
profile.cov

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vendor/
**/*.log
**/*.sqlite
.idea/
.DS_Store
bin/
tmp/
.vscode/
.env
bin/imagorvideo
profile.cov

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ARG GOLANG_VERSION=1.19.0
FROM golang:${GOLANG_VERSION}-bullseye as builder
ARG FFMPEG_VERSION=5.1.1
ARG VIPS_VERSION=8.13.1
ARG CGIF_VERSION=0.3.0
ARG LIBSPNG_VERSION=0.7.2
ARG TARGETARCH
ENV PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
ENV MAKEFLAGS="-j8"
# libaom3 is in Debian bullseye-backports
RUN echo 'deb http://deb.debian.org/debian bullseye-backports main' > /etc/apt/sources.list.d/backports.list
# Installs libvips + required libraries
RUN DEBIAN_FRONTEND=noninteractive \
apt-get update && \
apt-get install --no-install-recommends -y \
ca-certificates \
automake build-essential curl \
python3-pip ninja-build pkg-config \
gobject-introspection gtk-doc-tools libglib2.0-dev libjpeg62-turbo-dev libpng-dev \
libwebp-dev libtiff5-dev libexif-dev libxml2-dev libpoppler-glib-dev \
swig libpango1.0-dev libmatio-dev libopenslide-dev libcfitsio-dev libopenjp2-7-dev \
libgsf-1-dev fftw3-dev liborc-0.4-dev librsvg2-dev libimagequant-dev libaom-dev/bullseye-backports libheif-dev \
yasm libx264-dev libx265-dev libnuma-dev libvpx-dev libtheora-dev \
librtmp-dev libvorbis-dev && \
pip3 install meson && \
cd /tmp && \
curl -fsSLO https://github.com/dloebl/cgif/archive/refs/tags/V${CGIF_VERSION}.tar.gz && \
tar xf V${CGIF_VERSION}.tar.gz && \
cd cgif-${CGIF_VERSION} && \
meson build --prefix=/usr/local --libdir=/usr/local/lib --buildtype=release && \
cd build && \
ninja && \
ninja install && \
cd /tmp && \
curl -fsSLO https://github.com/randy408/libspng/archive/refs/tags/v${LIBSPNG_VERSION}.tar.gz && \
tar xf v${LIBSPNG_VERSION}.tar.gz && \
cd libspng-${LIBSPNG_VERSION} && \
meson setup _build \
--buildtype=release \
--strip \
--prefix=/usr/local \
--libdir=lib && \
ninja -C _build && \
ninja -C _build install && \
cd /tmp && \
curl -fsSLO https://github.com/libvips/libvips/releases/download/v${VIPS_VERSION}/vips-${VIPS_VERSION}.tar.gz && \
tar zvxf vips-${VIPS_VERSION}.tar.gz && \
cd /tmp/vips-${VIPS_VERSION} && \
meson setup _build \
--buildtype=release \
--strip \
--prefix=/usr/local \
--libdir=lib \
-Dgtk_doc=false \
-Dmagick=disabled \
-Dintrospection=false && \
ninja -C _build && \
ninja -C _build install && \
cd /tmp && \
curl -fsSLO https://ffmpeg.org/releases/ffmpeg-${FFMPEG_VERSION}.tar.bz2 && \
tar jvxf ffmpeg-${FFMPEG_VERSION}.tar.bz2 && \
cd /tmp/ffmpeg-${FFMPEG_VERSION} && \
./configure --prefix=/usr/local \
--disable-debug \
--disable-doc \
--disable-ffplay \
--disable-static \
--enable-shared \
--enable-version3 \
--enable-gpl \
--enable-libtheora \
--enable-libvorbis \
--enable-librtmp \
--enable-libwebp \
--enable-libvpx \
--enable-libx265 \
--enable-libx264 && \
make && make install && \
ldconfig && \
rm -rf /usr/local/lib/python* && \
rm -rf /usr/local/lib/libvips-cpp.* && \
rm -rf /usr/local/lib/*.a && \
rm -rf /usr/local/lib/*.la
WORKDIR ${GOPATH}/src/github.com/cshum/imagorvideo
COPY go.mod .
COPY go.sum .
RUN go mod download
COPY . .
RUN if [ "$TARGETARCH" = "amd64" ]; then go test ./...; fi
RUN go build -o ${GOPATH}/bin/imagorvideo ./cmd/imagorvideo/main.go
FROM debian:bullseye-slim
LABEL maintainer="adrian@cshum.com"
COPY --from=builder /usr/local/lib /usr/local/lib
COPY --from=builder /etc/ssl/certs /etc/ssl/certs
COPY --from=builder /etc/apt/sources.list.d/backports.list /etc/apt/sources.list.d/backports.list
# Install runtime dependencies
RUN DEBIAN_FRONTEND=noninteractive \
apt-get update && \
apt-get install --no-install-recommends -y \
procps libglib2.0-0 libjpeg62-turbo libpng16-16 libopenexr25 \
libwebp6 libwebpmux3 libwebpdemux2 libtiff5 libexif12 libxml2 libpoppler-glib8 \
libpango1.0-0 libmatio11 libopenslide0 libopenjp2-7 libjemalloc2 \
libgsf-1-114 fftw3 liborc-0.4-0 librsvg2-2 libcfitsio9 libimagequant0 libaom3 libheif1 \
libx264-dev libx265-dev libnuma-dev libvpx6 libtheora0 libvorbis-dev && \
ln -s /usr/lib/$(uname -m)-linux-gnu/libjemalloc.so.2 /usr/local/lib/libjemalloc.so && \
apt-get autoremove -y && \
apt-get autoclean && \
apt-get clean && \
rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
COPY --from=builder /go/bin/imagorvideo /usr/local/bin/imagorvideo
ENV VIPS_WARNING=0
ENV MALLOC_ARENA_MAX=2
ENV LD_PRELOAD=/usr/local/lib/libjemalloc.so
ENV PORT 8000
# use unprivileged user
USER nobody
ENTRYPOINT ["/usr/local/bin/imagorvideo"]
EXPOSE ${PORT}

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build:
CGO_CFLAGS_ALLOW=-Xpreprocessor go build -o bin/imagorvideo ./cmd/imagorvideo/main.go
test:
go clean -testcache && CGO_CFLAGS_ALLOW=-Xpreprocessor go test -coverprofile=profile.cov ./...
dev: build
./bin/imagorvideo -debug -imagor-unsafe
help: build
./bin/imagorvideo -h
get:
go get -v -t -d ./...
docker-dev-build:
docker build -t imagorvideo:dev .
docker-dev-run:
touch .env
docker run --rm -p 8000:8000 --env-file .env imagorvideo:dev -debug -imagor-unsafe
docker-dev: docker-dev-build docker-dev-run

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# imagorvideo
imagorvideo is a new initiative that brings video thumbnail capability through ffmpeg, built on the foundations of [imagor](https://github.com/cshum/imagor). imagor is a fast, Docker-ready image processing server written in Go with libvips.
Imagorvideo uses ffmpeg C bindings that extracts image thumbnail from video by attempting to select the best frame, then forwards to libvips to perform all existing image operations supported by imagor.
imagorvideo uses reader stream for mkv and webm video types. For other video types that requires seeking from a non seek-able source such as HTTP or S3, it simulates seek using memory buffer or temp file, by having the whole file to be fully loaded to perform seek.
**This project is a work in progress**. It also aims to be a reference project demonstrating imagor extensibility. Feel free to create a pull request or report an issue if you found bugs, suggestions or enhancements.
### Quick Start
```bash
docker run -p 8000:8000 shumc/imagorvideo -imagor-unsafe
```
Check out [imagor](https://github.com/cshum/imagor#image-endpoint) for all existing image operations supported.
### Configuration
Config options specific to imagorvideo. Check out [imagor](https://github.com/cshum/imagor#configuration) for all existing options supported.
```
-ffmpeg-fallback-image string
FFmpeg fallback image on processing error. Supports image path enabled by loaders or storages
```

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package main
import (
"github.com/cshum/imagor/config"
"github.com/cshum/imagor/config/awsconfig"
"github.com/cshum/imagor/config/gcloudconfig"
"github.com/cshum/imagor/config/vipsconfig"
"github.com/cshum/imagorvideo"
"os"
)
func main() {
var server = config.CreateServer(
os.Args[1:],
imagorvideo.Config,
vipsconfig.WithVips,
awsconfig.WithAWS,
gcloudconfig.WithGCloud,
)
if server != nil {
server.Run()
}
}

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package imagorvideo
import (
"flag"
"github.com/cshum/imagor"
"go.uber.org/zap"
)
func Config(fs *flag.FlagSet, cb func() (*zap.Logger, bool)) imagor.Option {
var (
ffmpegFallbackImage = fs.String("ffmpeg-fallback-image", "",
"FFmpeg fallback image on processing error. Supports image path enabled by loaders or storages")
logger, isDebug = cb()
)
return imagor.WithProcessors(
NewProcessor(
WithFallbackImage(*ffmpegFallbackImage),
WithLogger(logger),
WithDebug(isDebug),
),
)
}

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package ffmpeg
// #include "ffmpeg.h"
import "C"
import (
"github.com/cshum/imagorvideo/ffmpeg/pointer"
"io"
"unsafe"
)
//export goPacketRead
func goPacketRead(opaque unsafe.Pointer, buf *C.uint8_t, bufSize C.int) C.int {
ctx, ok := pointer.Restore(opaque).(*AVContext)
if !ok || ctx.reader == nil {
return C.int(ErrUnknown)
}
p := (*[1 << 30]byte)(unsafe.Pointer(buf))[:bufSize:bufSize]
n, err := ctx.reader.Read(p)
if err == io.EOF {
return C.int(ErrEOF)
} else if err != nil {
return C.int(ErrUnknown)
}
return C.int(n)
}
//export goPacketSeek
func goPacketSeek(opaque unsafe.Pointer, offset C.int64_t, whence C.int) C.int64_t {
ctx, ok := pointer.Restore(opaque).(*AVContext)
if !ok || ctx.seeker == nil {
return C.int64_t(ErrUnknown)
}
if whence == C.AVSEEK_SIZE && ctx.size > 0 {
return C.int64_t(ctx.size)
}
n, err := ctx.seeker.Seek(int64(offset), int(whence))
if err != nil {
return C.int64_t(ErrUnknown)
}
return C.int64_t(n)
}
//export goInterrupt
func goInterrupt(opaque unsafe.Pointer) C.int {
if ctx, ok := pointer.Restore(opaque).(*AVContext); ok {
select {
case <-ctx.context.Done():
return 1
default:
return 0
}
}
return 0
}

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package ffmpeg
// #include "ffmpeg.h"
import "C"
import (
"strconv"
"unsafe"
)
type avError int
const (
ErrNoMem = avError(-C.ENOMEM)
ErrEOF = avError(C.AVERROR_EOF)
ErrUnknown = avError(C.AVERROR_UNKNOWN)
ErrDecoderNotFound = avError(C.AVERROR_DECODER_NOT_FOUND)
ErrInvalidData = avError(C.AVERROR_INVALIDDATA)
ErrTooBig = avError(C.ERR_TOO_BIG)
)
func (e avError) errorString() string {
if e == ErrNoMem {
return "cannot allocate memory"
}
if e == ErrTooBig {
return "video or cover art size exceeds maximum allowed dimensions"
}
errString := (*C.char)(C.av_malloc(C.AV_ERROR_MAX_STRING_SIZE))
if errString == nil {
return "cannot allocate memory for error string, error code: " + strconv.Itoa(int(e))
}
defer C.av_free(unsafe.Pointer(errString))
C.av_make_error_string(errString, C.AV_ERROR_MAX_STRING_SIZE, C.int(e))
return C.GoString(errString)
}
func (e avError) Error() string {
return "ffmpeg: " + e.errorString()
}

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#include "ffmpeg.h"
pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
void free_format_context(AVFormatContext *fmt_ctx) {
if (!fmt_ctx) {
return;
}
av_free(fmt_ctx->pb->buffer);
avio_context_free(&fmt_ctx->pb);
avformat_close_input(&fmt_ctx);
}
int allocate_format_context(AVFormatContext **fmt_ctx) {
AVFormatContext *ctx = NULL;
if (!(ctx = avformat_alloc_context())) {
return AVERROR(ENOMEM);
}
*fmt_ctx = ctx;
return 0;
}
int create_format_context(AVFormatContext *fmt_ctx, void* opaque, int flags) {
int err = 0;
uint8_t *avio_buffer = NULL;
AVIOContext *avio_ctx = NULL;
if (!(avio_buffer = av_malloc(BUFFER_SIZE))) {
avformat_free_context(fmt_ctx);
return AVERROR(ENOMEM);
}
void *reader = NULL;
void *seeker = NULL;
int write_flag = 0;
int seekable = 0;
if (flags & READ_PACKET_FLAG) {
reader = goPacketRead;
}
if (flags & SEEK_PACKET_FLAG) {
seeker = goPacketSeek;
seekable = 1;
}
if (flags & INTERRUPT_FLAG) {
fmt_ctx->interrupt_callback.callback = goInterrupt;
fmt_ctx->interrupt_callback.opaque = opaque;
}
if (!(avio_ctx = avio_alloc_context(avio_buffer, BUFFER_SIZE, write_flag, opaque, reader, NULL, seeker))) {
av_free(avio_buffer);
avformat_free_context(fmt_ctx);
return AVERROR(ENOMEM);
}
fmt_ctx->pb = avio_ctx;
fmt_ctx->pb->seekable = seekable;
err = avformat_open_input(&fmt_ctx, NULL, NULL, NULL);
if (err < 0) {
av_free(avio_ctx->buffer);
avio_context_free(&avio_ctx);
free_format_context(fmt_ctx);
return err;
}
err = pthread_mutex_lock(&mutex);
if (err < 0) {
free_format_context(fmt_ctx);
return err;
}
err = avformat_find_stream_info(fmt_ctx, NULL);
int muErr = pthread_mutex_unlock(&mutex);
if (err < 0 || muErr < 0) {
free_format_context(fmt_ctx);
if (muErr < 0) {
return muErr;
}
}
return err;
}
static int get_orientation(AVStream *video_stream) {
uint8_t *display_matrix = av_stream_get_side_data(video_stream, AV_PKT_DATA_DISPLAYMATRIX, NULL);
double theta = 0;
if (display_matrix) {
theta = -av_display_rotation_get((int32_t *) display_matrix);
}
theta -= 360 * floor(theta / 360 + 0.9 / 360);
int rot = (int) (90 * round(theta / 90)) % 360;
switch (rot) {
case 90:
return 6;
case 180:
return 3;
case 270:
return 8;
default:
return 1;
};
}
void get_metadata(AVFormatContext *fmt_ctx, char **artist, char **title) {
AVDictionaryEntry *tag = NULL;
if ((tag = av_dict_get(fmt_ctx->metadata, "artist", NULL, 0))) {
*artist = tag->value;
}
if ((tag = av_dict_get(fmt_ctx->metadata, "title", NULL, 0))) {
*title = tag->value;
}
}
int find_streams(AVFormatContext *fmt_ctx, AVStream **video_stream, int *orientation) {
int video_stream_index = av_find_best_stream(fmt_ctx, AVMEDIA_TYPE_VIDEO, -1, -1, NULL, 0);
int audio_stream_index = av_find_best_stream(fmt_ctx, AVMEDIA_TYPE_AUDIO, -1, -1, NULL, 0);
int video_audio = 0;
if (audio_stream_index >= 0) {
video_audio |= HAS_AUDIO_STREAM;
}
if (video_stream_index >= 0) {
video_audio |= HAS_VIDEO_STREAM;
} else {
if (video_audio) {
return video_audio;
}
return AVERROR_STREAM_NOT_FOUND;
}
*video_stream = fmt_ctx->streams[video_stream_index];
*orientation = get_orientation(*video_stream);
return video_audio;
}
static int open_codec(AVCodecContext *codec_ctx, AVCodec *codec) {
int err = pthread_mutex_lock(&mutex);
if (err < 0) {
return err;
}
err = avcodec_open2(codec_ctx, codec, NULL);
int muErr = pthread_mutex_unlock(&mutex);
if (muErr < 0) {
return muErr;
}
return err;
}
int create_codec_context(AVStream *video_stream, AVCodecContext **dec_ctx) {
AVCodec *dec = NULL;
AVCodecParameters *par = video_stream->codecpar;
if (par->codec_id == AV_CODEC_ID_VP8) {
dec = avcodec_find_decoder_by_name("libvpx");
} else if (par->codec_id == AV_CODEC_ID_VP9) {
dec = avcodec_find_decoder_by_name("libvpx-vp9");
}
if (!dec) {
dec = avcodec_find_decoder(par->codec_id);
}
if (dec == NULL) {
return AVERROR_DECODER_NOT_FOUND;
}
if (par->format == -1) {
return AVERROR_INVALIDDATA;
}
if (av_get_bits_per_pixel(av_pix_fmt_desc_get(par->format)) * par->height * par->width > 1 << 30) {
return ERR_TOO_BIG;
}
if (!(*dec_ctx = avcodec_alloc_context3(dec))) {
return AVERROR(ENOMEM);
}
int err = avcodec_parameters_to_context(*dec_ctx, par);
if (err < 0) {
avcodec_free_context(dec_ctx);
return err;
}
err = open_codec(*dec_ctx, dec);
if (err < 0) {
avcodec_free_context(dec_ctx);
}
return err;
}
AVFrame *convert_frame_to_rgb(AVFrame *frame, int alpha) {
int output_fmt = alpha ? AV_PIX_FMT_RGBA : AV_PIX_FMT_RGB24;
struct SwsContext *sws_ctx = NULL;
AVFrame *output_frame = av_frame_alloc();
if (!output_frame) {
return output_frame;
}
output_frame->height = frame->height;
output_frame->width = frame->width;
output_frame->format = output_fmt;
if (av_frame_get_buffer(output_frame, 1) < 0) {
goto free;
}
if (output_fmt == frame->format) {
if (av_frame_copy(output_frame, frame) < 0) {
goto free;
}
goto done;
}
sws_ctx = sws_getContext(frame->width, frame->height, frame->format,
output_frame->width, output_frame->height, output_fmt,
SWS_LANCZOS | SWS_ACCURATE_RND, NULL, NULL, NULL);
if (!sws_ctx) {
goto free;
}
if (sws_scale(sws_ctx, (const uint8_t *const *) frame->data, frame->linesize, 0, frame->height, output_frame->data,
output_frame->linesize) != output_frame->height) {
goto free;
} else {
goto done;
}
free:
av_frame_free(&output_frame);
done:
if (sws_ctx) {
sws_freeContext(sws_ctx);
}
return output_frame;
}
int encode_frame_to_image(AVFormatContext *fmt_ctx, AVFrame *frame, AVPacket *pkt) {
AVCodec *enc = avcodec_find_encoder(AV_CODEC_ID_PNG);
if (!enc) {
return AVERROR_ENCODER_NOT_FOUND;
}
AVCodecContext *enc_ctx = avcodec_alloc_context3(enc);
if (!enc_ctx) {
return AVERROR(ENOMEM);
}
enc_ctx->width = frame->width;
enc_ctx->height = frame->height;
enc_ctx->pix_fmt = frame->format;
enc_ctx->codec_type = AVMEDIA_TYPE_VIDEO;
enc_ctx->time_base = (AVRational) {1, 1};
enc_ctx->compression_level = INT_MAX;
int err = open_codec(enc_ctx, enc);
if (err < 0) {
avcodec_free_context(&enc_ctx);
return err;
}
err = avcodec_send_frame(enc_ctx, frame);
if (err < 0) {
avcodec_free_context(&enc_ctx);
return err;
}
err = avcodec_receive_packet(enc_ctx, pkt);
avcodec_free_context(&enc_ctx);
return err;
}
AVPacket create_packet() {
AVPacket *pkt = av_packet_alloc();
pkt->data = NULL;
pkt->size = 0;
return *pkt;
}
int
obtain_next_frame(AVFormatContext *fmt_ctx, AVCodecContext *dec_ctx, int stream_index, AVPacket *pkt, AVFrame **frame) {
int err = 0, retry = 0;
if (!(*frame) && !(*frame = av_frame_alloc())) {
err = AVERROR(ENOMEM);
return err;
}
if ((err = avcodec_receive_frame(dec_ctx, *frame)) != AVERROR(EAGAIN)) {
return err;
}
while (1) {
if ((err = av_read_frame(fmt_ctx, pkt)) < 0) {
break;
}
if (pkt->stream_index != stream_index) {
av_packet_unref(pkt);
continue;
}
if ((err = avcodec_send_packet(dec_ctx, pkt)) < 0) {
if (retry++ >= 10) {
break;
}
continue;
}
if (!(*frame) && !(*frame = av_frame_alloc())) {
err = AVERROR(ENOMEM);
break;
}
err = avcodec_receive_frame(dec_ctx, *frame);
if (err >= 0 || err != AVERROR(EAGAIN)) {
break;
}
av_packet_unref(pkt);
}
if (pkt->buf) {
av_packet_unref(pkt);
}
return err;
}
int64_t find_duration(AVFormatContext *fmt_ctx) {
AVPacket pkt = create_packet();
int err = 0;
int64_t duration = 0;
while (err >= 0) {
err = av_read_frame(fmt_ctx, &pkt);
if (pkt.pts != AV_NOPTS_VALUE) {
AVRational time_base = fmt_ctx->streams[pkt.stream_index]->time_base;
duration = FFMAX(duration, pkt.pts * 1000000000 * time_base.num / time_base.den);
}
av_packet_unref(&pkt);
}
if (err == AVERROR_EOF) {
return duration;
}
return err;
}
ThumbContext *create_thumb_context(AVStream *stream, AVFrame *frame) {
ThumbContext *thumb_ctx = av_mallocz(sizeof *thumb_ctx);
if (!thumb_ctx) {
return thumb_ctx;
}
// thumb_ctx->n = 0;
thumb_ctx->desc = av_pix_fmt_desc_get(frame->format);
int nb_frames = 100;
if (stream->disposition & AV_DISPOSITION_ATTACHED_PIC) {
nb_frames = 1;
} else if (stream->nb_frames && stream->nb_frames < 400) {
nb_frames = (int) (stream->nb_frames >> 2) + 1;
}
int frames_in_128mb = (1 << 30) / (av_get_bits_per_pixel(thumb_ctx->desc) * frame->height * frame->width);
thumb_ctx->max_frames = FFMIN(nb_frames, frames_in_128mb);
// thumb_ctx->hist_size = 0;
// thumb_ctx->alpha = 0;
int i;
for (i = 0; i < thumb_ctx->desc->nb_components; i++) {
thumb_ctx->hist_size += 1 << thumb_ctx->desc->comp[i].depth;
}
thumb_ctx->median = av_calloc(thumb_ctx->hist_size, sizeof(double));
if (!thumb_ctx->median) {
av_free(thumb_ctx);
return NULL;
}
thumb_ctx->frames = av_malloc_array((size_t) thumb_ctx->max_frames, sizeof *thumb_ctx->frames);
if (!thumb_ctx->frames) {
av_free(thumb_ctx->median);
av_free(thumb_ctx);
return NULL;
}
for (i = 0; i < thumb_ctx->max_frames; i++) {
thumb_ctx->frames[i].frame = NULL;
thumb_ctx->frames[i].hist = av_calloc(thumb_ctx->hist_size, sizeof(int));
if (!thumb_ctx->frames[i].hist) {
for (i--; i >= 0; i--) {
av_free(thumb_ctx->frames[i].hist);
}
av_free(thumb_ctx->median);
av_free(thumb_ctx);
return NULL;
}
}
return thumb_ctx;
}
void free_thumb_context(ThumbContext *thumb_ctx) {
if (!thumb_ctx) {
return;
}
int i;
for (i = 0; i < thumb_ctx->n; i++) {
av_frame_free(&thumb_ctx->frames[i].frame);
av_free(thumb_ctx->frames[i].hist);
}
for (i = thumb_ctx->n; i < thumb_ctx->max_frames; i++) {
av_free(thumb_ctx->frames[i].hist);
}
av_free(thumb_ctx->median);
av_free(thumb_ctx->frames);
av_free(thumb_ctx);
}
static double root_mean_square_error(const int *hist, const double *median, size_t hist_size) {
int i;
double err, sum_sq_err = 0;
for (i = 0; i < hist_size; i++) {
err = median[i] - (double) hist[i];
sum_sq_err += err * err;
}
return sum_sq_err;
}
static int alpha_check(const AVFrame *frame, const uint64_t flags, const int last_hist_num) {
if (flags & AV_PIX_FMT_FLAG_PAL) {
for (int i = 3; i <= 1023; i += 4) {
if (frame->data[1][i] != 255) {
return 1;
}
}
} else if (flags & AV_PIX_FMT_FLAG_ALPHA && last_hist_num < frame->width * frame->height) {
return 1;
}
return 0;
}
void populate_histogram(ThumbContext *thumb_ctx, int n, AVFrame *frame) {
const AVPixFmtDescriptor *desc = thumb_ctx->desc;
thumb_ctx->frames[n].frame = frame;
int *hist = thumb_ctx->frames[n].hist;
AVComponentDescriptor comp;
int w, h, plane, depth, mask, shift, step, height, width;
uint64_t flags;
uint8_t **data = frame->data;
int *linesize = frame->linesize;
for (int c = 0; c < desc->nb_components; c++) {
comp = desc->comp[c];
plane = comp.plane;
depth = comp.depth;
mask = (1 << depth) - 1;
shift = comp.shift;
step = comp.step;
flags = desc->flags;
width = !(desc->log2_chroma_w) || (c != 1 && c != 2) ? frame->width : AV_CEIL_RSHIFT(frame->width,
desc->log2_chroma_w);
height = !(desc->log2_chroma_h) || (c != 1 && c != 2) ? frame->height : AV_CEIL_RSHIFT(frame->height,
desc->log2_chroma_h);
for (h = 0; h < height; h++) {
w = width;
if (flags & AV_PIX_FMT_FLAG_BITSTREAM) {
const uint8_t *p = data[plane] + h * linesize[plane] + (comp.offset >> 3);
shift = 8 - depth - (comp.offset & 7);
while (w--) {
int val = (*p >> shift) & mask;
shift -= step;
p -= shift >> 3;
shift &= 7;
(*(hist + val))++;
}
} else {
const uint8_t *p = data[plane] + h * linesize[plane] + comp.offset;
int is_8bit = shift + depth <= 8;
if (is_8bit)
p += (flags & AV_PIX_FMT_FLAG_BE) != 0;
while (w--) {
int val = is_8bit ? *p :
flags & AV_PIX_FMT_FLAG_BE ? AV_RB16(p) : AV_RL16(p);
val = (val >> shift) & mask;
p += step;
(*(hist + val))++;
}
}
}
hist += 1 << depth;
}
}
static AVFrame *get_best_frame(ThumbContext *thumb_ctx) {
struct thumb_frame *t_frame = NULL;
double min_sum_sq_err = DBL_MAX, sum_sq_err = 0;
int i, n = 0;
for (i = 0; i < thumb_ctx->n; i++) {
t_frame = thumb_ctx->frames + i;
sum_sq_err = root_mean_square_error(t_frame->hist, thumb_ctx->median, thumb_ctx->hist_size);
if (sum_sq_err < min_sum_sq_err) {
min_sum_sq_err = sum_sq_err;
n = i;
}
}
thumb_ctx->alpha = alpha_check(thumb_ctx->frames[n].frame, thumb_ctx->desc->flags,
thumb_ctx->frames[n].hist[thumb_ctx->hist_size - 1]);
return thumb_ctx->frames[n].frame;
}
AVFrame *process_frames(ThumbContext *thumb_ctx) {
int i, j, *hist = NULL, n = thumb_ctx->n;
double *median = thumb_ctx->median;
for (j = 0; j < n; j++) {
hist = thumb_ctx->frames[j].hist;
for (i = 0; i < thumb_ctx->hist_size; i++) {
median[i] += (double) hist[i] / n;
}
}
return get_best_frame(thumb_ctx);
}

290
ffmpeg/ffmpeg.go Normal file
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package ffmpeg
// #cgo pkg-config: libavformat libavutil libavcodec libswscale
// #cgo CFLAGS: -std=c11
// #cgo LDFLAGS: -lm
// #include "ffmpeg.h"
import "C"
import (
"context"
"github.com/cshum/imagorvideo/ffmpeg/pointer"
"io"
"time"
"unsafe"
)
const (
readPacketFlag = 1
seekPacketFlag = 2
interruptFlag = 3
hasVideo = 1
hasAudio = 2
)
type Metadata struct {
Orientation int `json:"orientation"`
Duration time.Duration `json:"duration,omitempty"`
Width int `json:"width,omitempty"`
Height int `json:"height,omitempty"`
Title string `json:"title,omitempty"`
Artist string `json:"artist,omitempty"`
HasVideo bool `json:"has_video"`
HasAudio bool `json:"has_audio"`
HasAlpha bool `json:"has_alpha"`
}
type AVContext struct {
context context.Context
opaque unsafe.Pointer
reader io.Reader
seeker io.Seeker
formatContext *C.AVFormatContext
stream *C.AVStream
codecContext *C.AVCodecContext
thumbContext *C.ThumbContext
frame *C.AVFrame
durationInFormat bool
orientation int
size int64
duration time.Duration
width, height int
title, artist string
hasVideo, hasAudio bool
hasFrame, hasAlpha bool
}
func LoadAVContext(ctx context.Context, reader io.Reader, size int64) (*AVContext, error) {
av := &AVContext{
context: ctx,
reader: reader,
size: size,
}
if seeker, ok := reader.(io.Seeker); ok {
av.seeker = seeker
}
flags := C.int(readPacketFlag | interruptFlag)
if av.seeker != nil {
flags |= seekPacketFlag
}
err := createFormatContext(av, flags)
if err != nil {
return nil, err
}
if !av.hasVideo {
return av, nil
}
if err = createDecoder(av); err == ErrTooBig || err == ErrDecoderNotFound {
return av, err
}
return av, nil
}
func (av *AVContext) ExportImage() ([]byte, error) {
if !av.hasFrame {
return nil, nil
}
return encodeFrameImage(av)
}
func (av *AVContext) Close() {
freeFormatContext(av)
}
func (av *AVContext) Metadata() *Metadata {
return &Metadata{
Orientation: av.orientation,
Duration: av.duration,
Width: av.width,
Height: av.height,
Title: av.title,
Artist: av.artist,
HasVideo: av.hasVideo,
HasAudio: av.hasAudio,
HasAlpha: av.hasAlpha,
}
}
func freeFormatContext(av *AVContext) {
C.free_format_context(av.formatContext)
pointer.Unref(av.opaque)
}
func createFormatContext(av *AVContext, callbackFlags C.int) error {
intErr := C.allocate_format_context(&av.formatContext)
if intErr < 0 {
return avError(intErr)
}
av.opaque = pointer.Save(av)
intErr = C.create_format_context(av.formatContext, av.opaque, callbackFlags)
if intErr < 0 {
pointer.Unref(av.opaque)
return avError(intErr)
}
metaData(av)
duration(av)
err := findStreams(av)
if err != nil {
freeFormatContext(av)
}
return err
}
func metaData(av *AVContext) {
var artist, title *C.char
C.get_metadata(av.formatContext, &artist, &title)
av.artist = C.GoString(artist)
av.title = C.GoString(title)
}
func duration(av *AVContext) {
if av.formatContext.duration > 0 {
av.durationInFormat = true
av.duration = time.Duration(1000 * av.formatContext.duration)
}
}
func fullDuration(av *AVContext) error {
if av.durationInFormat {
return nil
}
newDuration := time.Duration(C.find_duration(av.formatContext))
if newDuration < 0 {
return avError(newDuration)
}
if newDuration > av.duration {
av.duration = newDuration
}
return nil
}
func findStreams(av *AVContext) error {
var orientation C.int
err := C.find_streams(av.formatContext, &av.stream, &orientation)
if err < 0 {
return avError(err)
}
av.hasVideo = err&hasVideo != 0
av.hasAudio = err&hasAudio != 0
if av.hasVideo {
av.width = int(av.stream.codecpar.width)
av.height = int(av.stream.codecpar.height)
av.orientation = int(orientation)
}
return nil
}
func createDecoder(av *AVContext) error {
err := C.create_codec_context(av.stream, &av.codecContext)
if err < 0 {
return avError(err)
}
defer C.avcodec_free_context(&av.codecContext)
return createThumbContext(av)
}
func incrementDuration(av *AVContext, frame *C.AVFrame) {
if !av.durationInFormat && frame.pts != C.AV_NOPTS_VALUE {
ptsToNano := C.int64_t(1000000000 * av.stream.time_base.num / av.stream.time_base.den)
newDuration := time.Duration(frame.pts * ptsToNano)
if newDuration > av.duration {
av.duration = newDuration
}
}
}
func populateHistogram(av *AVContext, frames <-chan *C.AVFrame) <-chan struct{} {
done := make(chan struct{})
go func() {
var n C.int
for frame := range frames {
C.populate_histogram(av.thumbContext, n, frame)
n++
}
av.thumbContext.n = n
done <- struct{}{}
close(done)
}()
return done
}
func createThumbContext(av *AVContext) error {
pkt := C.create_packet()
var frame *C.AVFrame
err := C.obtain_next_frame(av.formatContext, av.codecContext, av.stream.index, &pkt, &frame)
if err >= 0 {
incrementDuration(av, frame)
av.thumbContext = C.create_thumb_context(av.stream, frame)
if av.thumbContext == nil {
err = C.int(ErrNoMem)
}
}
if err < 0 {
if pkt.buf != nil {
C.av_packet_unref(&pkt)
}
if frame != nil {
C.av_frame_free(&frame)
}
return avError(err)
}
defer C.free_thumb_context(av.thumbContext)
frames := make(chan *C.AVFrame, av.thumbContext.max_frames)
done := populateHistogram(av, frames)
frames <- frame
if pkt.buf != nil {
C.av_packet_unref(&pkt)
}
return populateThumbContext(av, frames, done)
}
func populateThumbContext(av *AVContext, frames chan *C.AVFrame, done <-chan struct{}) error {
pkt := C.create_packet()
var frame *C.AVFrame
var err C.int
for i := C.int(1); i < av.thumbContext.max_frames; i++ {
err = C.obtain_next_frame(av.formatContext, av.codecContext, av.stream.index, &pkt, &frame)
if err < 0 {
break
}
incrementDuration(av, frame)
frames <- frame
frame = nil
}
close(frames)
if pkt.buf != nil {
C.av_packet_unref(&pkt)
}
if frame != nil {
C.av_frame_free(&frame)
}
<-done
if err != 0 && err != C.int(ErrEOF) {
return avError(err)
}
return convertFrameToRGB(av)
}
func convertFrameToRGB(av *AVContext) error {
outputFrame := C.convert_frame_to_rgb(C.process_frames(av.thumbContext), av.thumbContext.alpha)
if outputFrame == nil {
return ErrNoMem
}
av.frame = outputFrame
av.hasFrame = true
av.hasAlpha = av.thumbContext.alpha != 0
return nil
}
func encodeFrameImage(av *AVContext) ([]byte, error) {
pkt := C.create_packet()
err := C.encode_frame_to_image(av.formatContext, av.frame, &pkt)
if err < 0 {
return nil, avError(err)
}
p := (*[1 << 30]byte)(unsafe.Pointer(pkt.data))[:pkt.size:pkt.size]
if pkt.buf != nil {
C.av_packet_unref(&pkt)
}
return p, nil
}

72
ffmpeg/ffmpeg.h Normal file
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#include <math.h>
#include <pthread.h>
#include <float.h>
#include <libavformat/avformat.h>
#include <libavcodec/avcodec.h>
#include <libavutil/opt.h>
#include <libavutil/file.h>
#include <libavutil/pixfmt.h>
#include <libswscale/swscale.h>
#include <libavutil/pixdesc.h>
#include <libavutil/intreadwrite.h>
#include <libavutil/imgutils.h>
#include <libavutil/display.h>
#define BUFFER_SIZE 1 << 12
#define READ_PACKET_FLAG 1
#define SEEK_PACKET_FLAG 2
#define INTERRUPT_FLAG 3
#define HAS_VIDEO_STREAM 1
#define HAS_AUDIO_STREAM 2
#define ERR_TOO_BIG FFERRTAG('H','M','M','M')
struct thumb_frame {
AVFrame *frame;
int *hist;
};
typedef struct ThumbContext {
int n, alpha, max_frames;
struct thumb_frame *frames;
double *median;
const AVPixFmtDescriptor *desc;
size_t hist_size;
} ThumbContext;
int allocate_format_context(AVFormatContext **fmt_ctx);
int create_format_context(AVFormatContext *fmt_ctx, void* opaque, int callbacks);
void free_format_context(AVFormatContext *fmt_ctx);
void get_metadata(AVFormatContext *fmt_ctx, char **artist, char **title);
int find_streams(AVFormatContext *fmt_ctx, AVStream **video_stream, int *orientation);
int create_codec_context(AVStream *video_stream, AVCodecContext **dec_ctx);
AVFrame *convert_frame_to_rgb(AVFrame *frame, int alpha);
int encode_frame_to_image(AVFormatContext *fmt_ctx, AVFrame *frame, AVPacket *pkt);
AVPacket create_packet();
int
obtain_next_frame(AVFormatContext *fmt_ctx, AVCodecContext *dec_ctx, int stream_index, AVPacket *pkt, AVFrame **frame);
int64_t find_duration(AVFormatContext *fmt_ctx);
ThumbContext *create_thumb_context(AVStream *stream, AVFrame *frame);
void free_thumb_context(ThumbContext *thumb_ctx);
AVFrame *process_frames(ThumbContext *thumb_ctx);
void populate_histogram(ThumbContext *thumb_ctx, int n, AVFrame *frame);
extern int goPacketRead(void *opaque, uint8_t *buf, int buf_size);
extern int64_t goPacketSeek(void *opaque, int64_t seek, int whence);
extern int goInterrupt(void *opaque);

29
ffmpeg/logging.go Normal file
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package ffmpeg
// #include "ffmpeg.h"
import "C"
// AVLogLevel defines the ffmpeg threshold for dumping information to stderr.
type AVLogLevel int
// Possible values for AVLogLevel.
const (
AVLogQuiet AVLogLevel = (iota - 1) * 8
AVLogPanic
AVLogFatal
AVLogError
AVLogWarning
AVLogInfo
AVLogVerbose
AVLogDebug
AVLogTrace
)
func logLevel() AVLogLevel {
return AVLogLevel(C.av_log_get_level())
}
// SetFFmpegLogLevel allows you to change the log level from the default (AVLogInfo).
func SetFFmpegLogLevel(logLevel AVLogLevel) {
C.av_log_set_level(C.int(logLevel))
}

100
ffmpeg/pointer/pointer.go Normal file
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package pointer
// #include <stdlib.h>
import "C"
import (
"sync"
"unsafe"
)
const blockSize = 1024
var (
mutex sync.RWMutex
store = map[unsafe.Pointer]interface{}{}
free []unsafe.Pointer
blocks []unsafe.Pointer
)
func allocMem() {
mem := C.malloc(blockSize)
if mem == nil {
panic("can't allocate memory block for C pointers")
}
blocks = append(blocks, mem)
for i := 0; i < blockSize; i++ {
p := unsafe.Pointer(uintptr(mem) + uintptr(blockSize-1-i))
free = append(free, p)
}
}
func getPtr() unsafe.Pointer {
// Generate real fake C pointer.
// This pointer will not store any data, but will be used for indexing
// purposes. Since Go doesn't allow to cast dangling pointer to
// unsafe.Pointer, we do really allocate memory. Why we need indexing? Because
// Go doest allow C code to store pointers to Go data.
if len(free) == 0 {
allocMem()
}
n := len(free) - 1
p := free[n]
free = free[:n]
return p
}
// Save an object in the storage and return an index pointer to it.
func Save(v interface{}) unsafe.Pointer {
if v == nil {
return nil
}
mutex.Lock()
ptr := getPtr()
store[ptr] = v
mutex.Unlock()
return ptr
}
// Restore an object from the storage by its index pointer.
func Restore(ptr unsafe.Pointer) (v interface{}) {
if ptr == nil {
return nil
}
mutex.RLock()
v = store[ptr]
mutex.RUnlock()
return
}
// Unref removes an object from the storage and returns the index pointer to the
// pool for reuse.
func Unref(ptr unsafe.Pointer) {
if ptr == nil {
return
}
mutex.Lock()
if _, ok := store[ptr]; ok {
delete(store, ptr)
free = append(free, ptr)
}
mutex.Unlock()
}
// Clear storage and free all memory
func Clear() {
mutex.Lock()
for p := range store {
delete(store, p)
}
free = nil
for _, p := range blocks {
C.free(p)
}
blocks = nil
mutex.Unlock()
}

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package pointer
import (
"sync"
"testing"
"unsafe"
"github.com/stretchr/testify/assert"
)
func TestPointer(t *testing.T) {
t.Cleanup(Clear)
// assert := makeAssert(t)
assert.Len(t, store, 0)
assert.Len(t, free, 0)
assert.Len(t, blocks, 0)
mutex.Lock()
assert.Equal(t, unsafe.Pointer(nil), Save(nil))
assert.Nil(t, Restore(nil))
Unref(nil)
mutex.Unlock()
i1 := Save("foo")
i2 := Save("bar")
i3 := Save("baz")
assert.Len(t, store, 3)
assert.Len(t, free, blockSize-3)
assert.Len(t, blocks, 1)
var x interface{}
x = Restore(i1)
assert.NotNil(t, x)
if s, ok := x.(string); ok {
assert.Equal(t, "foo", s)
} else {
t.Fail()
}
x = Restore(unsafe.Pointer(&x))
assert.Nil(t, x)
x = Restore(i3)
assert.NotNil(t, x)
if s, ok := x.(string); ok {
assert.Equal(t, "baz", s)
} else {
t.Fail()
}
Unref(i3)
x = Restore(i3)
assert.Nil(t, x)
Unref(i2)
Unref(i1)
assert.Len(t, store, 0)
assert.Len(t, free, blockSize)
assert.Len(t, blocks, 1)
i3 = Save("baz")
assert.Len(t, store, 1)
assert.Len(t, free, blockSize-1)
Clear()
assert.Len(t, store, 0)
assert.Len(t, free, 0)
assert.Len(t, blocks, 0)
}
func TestPointerIndexing(t *testing.T) {
t.Cleanup(Clear)
assert.Len(t, store, 0)
assert.Len(t, free, 0)
assert.Len(t, blocks, 0)
i1 := Save("foo")
i2 := Save("bar")
_ = Save("baz")
_ = Save("wibble")
_ = Save("wabble")
assert.Len(t, store, 5)
assert.Len(t, free, blockSize-5)
// Check that when we remove the first items inserted into the map there are
// no subsequent issues
Unref(i1)
Unref(i2)
assert.Len(t, free, blockSize-3)
_ = Save("flim")
ilast := Save("flam")
assert.Len(t, store, 5)
assert.Len(t, free, blockSize-5)
x := Restore(ilast)
assert.NotNil(t, x)
if s, ok := x.(string); ok {
assert.Equal(t, "flam", s)
}
}
func TestCallbacksData(t *testing.T) {
t.Cleanup(Clear)
assert.Len(t, store, 0)
assert.Len(t, free, 0)
assert.Len(t, blocks, 0)
// insert a plain function
i1 := Save(func(v int) int { return v + 1 })
// insert a type "containing" a function, note that it doesn't
// actually have a callable function. Users of the type must
// check that themselves
type flup struct {
Stuff int
Junk func(int, int) error
}
i2 := Save(flup{
Stuff: 55,
})
// did we get a function back
x1 := Restore(i1)
if assert.NotNil(t, x1) {
if f, ok := x1.(func(v int) int); ok {
assert.Equal(t, 2, f(1))
} else {
t.Fatalf("conversion failed")
}
}
// did we get our data structure back
x2 := Restore(i2)
if assert.NotNil(t, x2) {
if d, ok := x2.(flup); ok {
assert.Equal(t, 55, d.Stuff)
assert.Nil(t, d.Junk)
} else {
t.Fatalf("conversion failed")
}
}
}
func BenchmarkPointer(t *testing.B) {
t.Cleanup(Clear)
assert.Len(t, store, 0)
assert.Len(t, free, 0)
assert.Len(t, blocks, 0)
const workers = 1000
var wg sync.WaitGroup
f := func() {
defer wg.Done()
var x interface{}
var i1, i2, i3 unsafe.Pointer
for i := 0; i < t.N/workers; i++ {
i1 = Save("foo")
i2 = Save("bar")
i3 = Save("baz")
x = Restore(i1)
assert.NotNil(t, x)
if s, ok := x.(string); ok {
assert.Equal(t, "foo", s)
} else {
t.Fail()
}
x = Restore(i3)
assert.NotNil(t, x)
if s, ok := x.(string); ok {
assert.Equal(t, "baz", s)
} else {
t.Fail()
}
Unref(i3)
Unref(i2)
Unref(i1)
}
}
for i := 0; i < workers; i++ {
wg.Add(1)
go f()
}
wg.Wait()
assert.Len(t, store, 0)
assert.Len(t, free, len(blocks)*blockSize)
}

45
go.mod Normal file
View file

@ -0,0 +1,45 @@
module github.com/cshum/imagorvideo
go 1.18
require (
github.com/cshum/imagor v1.0.4-0.20220908104412-0f9aadc97055
github.com/gabriel-vasile/mimetype v1.4.1
github.com/stretchr/testify v1.8.0
go.uber.org/zap v1.23.0
)
require (
cloud.google.com/go v0.104.0 // indirect
cloud.google.com/go/compute v1.7.0 // indirect
cloud.google.com/go/iam v0.3.0 // indirect
cloud.google.com/go/storage v1.26.0 // indirect
github.com/aws/aws-sdk-go v1.44.93 // indirect
github.com/davecgh/go-spew v1.1.1 // indirect
github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
github.com/golang/protobuf v1.5.2 // indirect
github.com/google/go-cmp v0.5.8 // indirect
github.com/google/uuid v1.3.0 // indirect
github.com/googleapis/enterprise-certificate-proxy v0.1.0 // indirect
github.com/googleapis/gax-go/v2 v2.4.0 // indirect
github.com/jmespath/go-jmespath v0.4.0 // indirect
github.com/peterbourgon/ff/v3 v3.3.0 // indirect
github.com/pmezard/go-difflib v1.0.0 // indirect
github.com/rs/cors v1.8.2 // indirect
go.opencensus.io v0.23.0 // indirect
go.uber.org/atomic v1.9.0 // indirect
go.uber.org/multierr v1.8.0 // indirect
golang.org/x/image v0.0.0-20220413100746-70e8d0d3baa9 // indirect
golang.org/x/net v0.0.0-20220624214902-1bab6f366d9e // indirect
golang.org/x/oauth2 v0.0.0-20220822191816-0ebed06d0094 // indirect
golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4 // indirect
golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 // indirect
golang.org/x/text v0.3.7 // indirect
golang.org/x/xerrors v0.0.0-20220609144429-65e65417b02f // indirect
google.golang.org/api v0.94.0 // indirect
google.golang.org/appengine v1.6.7 // indirect
google.golang.org/genproto v0.0.0-20220822174746-9e6da59bd2fc // indirect
google.golang.org/grpc v1.48.0 // indirect
google.golang.org/protobuf v1.28.1 // indirect
gopkg.in/yaml.v3 v3.0.1 // indirect
)

724
go.sum Normal file
View file

@ -0,0 +1,724 @@
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4=
cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc=
cloud.google.com/go v0.56.0/go.mod h1:jr7tqZxxKOVYizybht9+26Z/gUq7tiRzu+ACVAMbKVk=
cloud.google.com/go v0.57.0/go.mod h1:oXiQ6Rzq3RAkkY7N6t3TcE6jE+CIBBbA36lwQ1JyzZs=
cloud.google.com/go v0.62.0/go.mod h1:jmCYTdRCQuc1PHIIJ/maLInMho30T/Y0M4hTdTShOYc=
cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY=
cloud.google.com/go v0.72.0/go.mod h1:M+5Vjvlc2wnp6tjzE102Dw08nGShTscUx2nZMufOKPI=
cloud.google.com/go v0.74.0/go.mod h1:VV1xSbzvo+9QJOxLDaJfTjx5e+MePCpCWwvftOeQmWk=
cloud.google.com/go v0.78.0/go.mod h1:QjdrLG0uq+YwhjoVOLsS1t7TW8fs36kLs4XO5R5ECHg=
cloud.google.com/go v0.79.0/go.mod h1:3bzgcEeQlzbuEAYu4mrWhKqWjmpprinYgKJLgKHnbb8=
cloud.google.com/go v0.81.0/go.mod h1:mk/AM35KwGk/Nm2YSeZbxXdrNK3KZOYHmLkOqC2V6E0=
cloud.google.com/go v0.83.0/go.mod h1:Z7MJUsANfY0pYPdw0lbnivPx4/vhy/e2FEkSkF7vAVY=
cloud.google.com/go v0.84.0/go.mod h1:RazrYuxIK6Kb7YrzzhPoLmCVzl7Sup4NrbKPg8KHSUM=
cloud.google.com/go v0.87.0/go.mod h1:TpDYlFy7vuLzZMMZ+B6iRiELaY7z/gJPaqbMx6mlWcY=
cloud.google.com/go v0.90.0/go.mod h1:kRX0mNRHe0e2rC6oNakvwQqzyDmg57xJ+SZU1eT2aDQ=
cloud.google.com/go v0.93.3/go.mod h1:8utlLll2EF5XMAV15woO4lSbWQlk8rer9aLOfLh7+YI=
cloud.google.com/go v0.94.1/go.mod h1:qAlAugsXlC+JWO+Bke5vCtc9ONxjQT3drlTTnAplMW4=
cloud.google.com/go v0.97.0/go.mod h1:GF7l59pYBVlXQIBLx3a761cZ41F9bBH3JUlihCt2Udc=
cloud.google.com/go v0.99.0/go.mod h1:w0Xx2nLzqWJPuozYQX+hFfCSI8WioryfRDzkoI/Y2ZA=
cloud.google.com/go v0.100.2/go.mod h1:4Xra9TjzAeYHrl5+oeLlzbM2k3mjVhZh4UqTZ//w99A=
cloud.google.com/go v0.102.0/go.mod h1:oWcCzKlqJ5zgHQt9YsaeTY9KzIvjyy0ArmiBUgpQ+nc=
cloud.google.com/go v0.104.0 h1:gSmWO7DY1vOm0MVU6DNXM11BWHHsTUmsC5cv1fuW5X8=
cloud.google.com/go v0.104.0/go.mod h1:OO6xxXdJyvuJPcEPBLN9BJPD+jep5G1+2U5B5gkRYtA=
cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc=
cloud.google.com/go/bigquery v1.5.0/go.mod h1:snEHRnqQbz117VIFhE8bmtwIDY80NLUZUMb4Nv6dBIg=
cloud.google.com/go/bigquery v1.7.0/go.mod h1://okPTzCYNXSlb24MZs83e2Do+h+VXtc4gLoIoXIAPc=
cloud.google.com/go/bigquery v1.8.0/go.mod h1:J5hqkt3O0uAFnINi6JXValWIb1v0goeZM77hZzJN/fQ=
cloud.google.com/go/compute v0.1.0/go.mod h1:GAesmwr110a34z04OlxYkATPBEfVhkymfTBXtfbBFow=
cloud.google.com/go/compute v1.3.0/go.mod h1:cCZiE1NHEtai4wiufUhW8I8S1JKkAnhnQJWM7YD99wM=
cloud.google.com/go/compute v1.5.0/go.mod h1:9SMHyhJlzhlkJqrPAc839t2BZFTSk6Jdj6mkzQJeu0M=
cloud.google.com/go/compute v1.6.0/go.mod h1:T29tfhtVbq1wvAPo0E3+7vhgmkOYeXjhFvz/FMzPu0s=
cloud.google.com/go/compute v1.6.1/go.mod h1:g85FgpzFvNULZ+S8AYq87axRKuf2Kh7deLqV/jJ3thU=
cloud.google.com/go/compute v1.7.0 h1:v/k9Eueb8aAJ0vZuxKMrgm6kPhCLZU9HxFU+AFDs9Uk=
cloud.google.com/go/compute v1.7.0/go.mod h1:435lt8av5oL9P3fv1OEzSbSUe+ybHXGMPQHHZWZxy9U=
cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
cloud.google.com/go/iam v0.3.0 h1:exkAomrVUuzx9kWFI1wm3KI0uoDeUFPB4kKGzx6x+Gc=
cloud.google.com/go/iam v0.3.0/go.mod h1:XzJPvDayI+9zsASAFO68Hk07u3z+f+JrT2xXNdp4bnY=
cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA=
cloud.google.com/go/pubsub v1.3.1/go.mod h1:i+ucay31+CNRpDW4Lu78I4xXG+O1r/MAHgjpRVR+TSU=
cloud.google.com/go/pubsub v1.25.1 h1:l0wCNZKuEp2Q54wAy8283EV9O57+7biWOXnnU2/Tq/A=
cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohlUTyfDhBk=
cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs=
cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
cloud.google.com/go/storage v1.22.1/go.mod h1:S8N1cAStu7BOeFfE8KAQzmyyLkK8p/vmRq6kuBTW58Y=
cloud.google.com/go/storage v1.26.0 h1:lYAGjknyDJirSzfwUlkv4Nsnj7od7foxQNH/fqZqles=
cloud.google.com/go/storage v1.26.0/go.mod h1:mk/N7YwIKEWyTvXAWQCIeiCTdLoRH6Pd5xmSnolQLTI=
dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
github.com/alexbrainman/goissue34681 v0.0.0-20191006012335-3fc7a47baff5 h1:iW0a5ljuFxkLGPNem5Ui+KBjFJzKg4Fv2fnxe4dvzpM=
github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
github.com/aws/aws-sdk-go v1.44.93 h1:hAgd9fuaptBatSft27/5eBMdcA8+cIMqo96/tZ6rKl8=
github.com/aws/aws-sdk-go v1.44.93/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo=
github.com/benbjohnson/clock v1.1.0 h1:Q92kusRqC1XV2MjkWETPvjJVqKetz1OzxZB7mHJLju8=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
github.com/cncf/udpa/go v0.0.0-20200629203442-efcf912fb354/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
github.com/cncf/udpa/go v0.0.0-20210930031921-04548b0d99d4/go.mod h1:6pvJx4me5XPnfI9Z40ddWsdw2W/uZgQLFXToKeRcDiI=
github.com/cncf/xds/go v0.0.0-20210312221358-fbca930ec8ed/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
github.com/cncf/xds/go v0.0.0-20210805033703-aa0b78936158/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
github.com/cncf/xds/go v0.0.0-20210922020428-25de7278fc84/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
github.com/cncf/xds/go v0.0.0-20211001041855-01bcc9b48dfe/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
github.com/cshum/imagor v1.0.4-0.20220908104412-0f9aadc97055 h1:at11db722sxlQfdC+PtieAAjt8/z1Sx3F5fS8SLJUYo=
github.com/cshum/imagor v1.0.4-0.20220908104412-0f9aadc97055/go.mod h1:nhOPIyQwjrbcopfe7ODwLQ7hbb+Ww5Kt6Jo29iJ+7HY=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
github.com/envoyproxy/go-control-plane v0.9.7/go.mod h1:cwu0lG7PUMfa9snN8LXBig5ynNVH9qI8YYLbd1fK2po=
github.com/envoyproxy/go-control-plane v0.9.9-0.20201210154907-fd9021fe5dad/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
github.com/envoyproxy/go-control-plane v0.9.9-0.20210217033140-668b12f5399d/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
github.com/envoyproxy/go-control-plane v0.9.9-0.20210512163311-63b5d3c536b0/go.mod h1:hliV/p42l8fGbc6Y9bQ70uLwIvmJyVE5k4iMKlh8wCQ=
github.com/envoyproxy/go-control-plane v0.9.10-0.20210907150352-cf90f659a021/go.mod h1:AFq3mo9L8Lqqiid3OhADV3RfLJnjiw63cSpi+fDTRC0=
github.com/envoyproxy/go-control-plane v0.10.2-0.20220325020618-49ff273808a1/go.mod h1:KJwIaB5Mv44NWtYuAOFCVOjcI94vtpEz2JU/D2v6IjE=
github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
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github.com/sirupsen/logrus v1.9.0 h1:trlNQbNUG3OdDrDil03MCb1H2o9nJ1x4/5LYw7byDE0=
github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/stretchr/testify v1.8.0 h1:pSgiaMZlXftHpm5L7V1+rVB+AZJydKsMxsQBIJw4PKk=
github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
github.com/yuin/goldmark v1.1.25/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
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github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
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go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
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go.opencensus.io v0.23.0/go.mod h1:XItmlyltB5F7CS4xOC1DcqMoFqwtC6OG2xF7mCv7P7E=
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golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
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golang.org/x/exp v0.0.0-20190829153037-c13cbed26979/go.mod h1:86+5VVa7VpoJ4kLfm080zCjGlMRFzhUhsZKEZO7MGek=
golang.org/x/exp v0.0.0-20191030013958-a1ab85dbe136/go.mod h1:JXzH8nQsPlswgeRAPE3MuO9GYsAcnJvJ4vnMwN/5qkY=
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golang.org/x/exp v0.0.0-20200207192155-f17229e696bd/go.mod h1:J/WKrq2StrnmMY6+EHIKF9dgMWnmCNThgcyBT1FY9mM=
golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6/go.mod h1:3jZMyOhIsHpP37uCMkUooju7aAi5cS1Q23tOzKc+0MU=
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golang.org/x/image v0.0.0-20220413100746-70e8d0d3baa9/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
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golang.org/x/lint v0.0.0-20190909230951-414d861bb4ac/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f/go.mod h1:5qLYkcX4OjUUV8bRuDixDT3tpyyb+LUpUlRWLxfhWrs=
golang.org/x/lint v0.0.0-20200130185559-910be7a94367/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
golang.org/x/lint v0.0.0-20200302205851-738671d3881b/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
golang.org/x/lint v0.0.0-20201208152925-83fdc39ff7b5/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
golang.org/x/lint v0.0.0-20210508222113-6edffad5e616/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o=
golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
golang.org/x/mod v0.1.1-0.20191107180719-034126e5016b/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.4.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.4.1/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190501004415-9ce7a6920f09/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20190628185345-da137c7871d7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20190724013045-ca1201d0de80/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20191209160850-c0dbc17a3553/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200114155413-6afb5195e5aa/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200202094626-16171245cfb2/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200222125558-5a598a2470a0/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200301022130-244492dfa37a/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
golang.org/x/net v0.0.0-20200501053045-e0ff5e5a1de5/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
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golang.org/x/net v0.0.0-20200513185701-a91f0712d120/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
golang.org/x/net v0.0.0-20200520182314-0ba52f642ac2/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20201031054903-ff519b6c9102/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20201209123823-ac852fbbde11/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
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golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
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golang.org/x/net v0.0.0-20220127200216-cd36cc0744dd/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
golang.org/x/net v0.0.0-20220225172249-27dd8689420f/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
golang.org/x/net v0.0.0-20220325170049-de3da57026de/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
golang.org/x/net v0.0.0-20220412020605-290c469a71a5/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
golang.org/x/net v0.0.0-20220425223048-2871e0cb64e4/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
golang.org/x/net v0.0.0-20220607020251-c690dde0001d/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
golang.org/x/net v0.0.0-20220624214902-1bab6f366d9e h1:TsQ7F31D3bUCLeqPT0u+yjp1guoArKaNKmCr22PYgTQ=
golang.org/x/net v0.0.0-20220624214902-1bab6f366d9e/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
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honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=

25
option.go Normal file
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@ -0,0 +1,25 @@
package imagorvideo
import "go.uber.org/zap"
type Option func(p *Processor)
func WithDebug(debug bool) Option {
return func(p *Processor) {
p.Debug = debug
}
}
func WithLogger(logger *zap.Logger) Option {
return func(p *Processor) {
if logger != nil {
p.Logger = logger
}
}
}
func WithFallbackImage(image string) Option {
return func(p *Processor) {
p.FallbackImage = image
}
}

137
processor.go Normal file
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package imagorvideo
import (
"context"
"github.com/cshum/imagor"
"github.com/cshum/imagor/imagorpath"
"github.com/cshum/imagorvideo/ffmpeg"
"github.com/gabriel-vasile/mimetype"
"go.uber.org/zap"
"io"
"os"
"strings"
)
type Processor struct {
Logger *zap.Logger
Debug bool
FallbackImage string
}
func NewProcessor(options ...Option) *Processor {
p := &Processor{
Logger: zap.NewNop(),
}
for _, option := range options {
option(p)
}
return p
}
func (p *Processor) Startup(_ context.Context) error {
if p.Debug {
ffmpeg.SetFFmpegLogLevel(ffmpeg.AVLogDebug)
} else {
ffmpeg.SetFFmpegLogLevel(ffmpeg.AVLogError)
}
return nil
}
func (p *Processor) Shutdown(_ context.Context) error {
return nil
}
func (p *Processor) Process(ctx context.Context, in *imagor.Blob, params imagorpath.Params, load imagor.LoadFunc) (out *imagor.Blob, err error) {
defer func() {
if err == nil || out != nil {
return
}
if _, ok := err.(imagor.ErrForward); ok {
return
}
// fallback image on error
out = imagor.NewBlobFromBytes(transPixel)
if p.FallbackImage != "" {
if o, e := load(p.FallbackImage); e == nil {
out = o
}
}
}()
var filters imagorpath.Filters
var mime = mimetype.Detect(in.Sniff()).String()
if !strings.HasPrefix(mime, "video/") &&
!strings.HasPrefix(mime, "audio/") {
// forward identical for non video nor audio
err = imagor.ErrForward{Params: params}
out = in
return
}
var reader io.ReadCloser
var size int64
switch mime {
case "video/webm", "video/x-matroska":
// media types that does not require seek
if reader, size, err = in.NewReader(); err != nil {
return
}
default:
if reader, size, err = in.NewReadSeeker(); err != nil {
// write to temp file if read seeker not available
if reader, _, err = in.NewReader(); err != nil {
return
}
var file *os.File
if file, err = os.CreateTemp("", "imagor-"); err != nil {
return
}
var filename = file.Name()
imagor.Defer(ctx, func() {
_ = os.Remove(filename)
p.Logger.Debug("cleanup", zap.String("file", filename))
})
if size, err = io.Copy(file, reader); err != nil {
return
}
p.Logger.Debug("temp",
zap.String("file", filename),
zap.Int64("size", size))
_ = file.Close()
if reader, err = os.Open(filename); err != nil {
return
}
}
}
av, err := ffmpeg.LoadAVContext(ctx, reader, size)
if err != nil {
return
}
meta := av.Metadata()
if params.Meta {
out = imagor.NewBlobFromJsonMarshal(meta)
return
}
switch meta.Orientation {
case 3:
filters = append(filters, imagorpath.Filter{Name: "rotate", Args: "180"})
case 6:
filters = append(filters, imagorpath.Filter{Name: "rotate", Args: "270"})
case 8:
filters = append(filters, imagorpath.Filter{Name: "rotate", Args: "90"})
}
buf, err := av.ExportImage()
if err != nil || len(buf) == 0 {
if err == nil {
err = imagor.ErrUnsupportedFormat
}
return
}
out = imagor.NewBlobFromBytes(buf)
if len(filters) > 0 {
params.Filters = append(filters, params.Filters...)
params.Path = imagorpath.GeneratePath(params)
}
err = imagor.ErrForward{Params: params}
return
}
var transPixel = []byte("\x47\x49\x46\x38\x39\x61\x01\x00\x01\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x21\xF9\x04\x01\x00\x00\x00\x00\x2C\x00\x00\x00\x00\x01\x00\x01\x00\x00\x02\x02\x44\x01\x00\x3B")