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Multilang : améliorer l’interface pour les blocs multilingues
18 février 2011, parMultilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela. -
L’agrémenter visuellement
10 avril 2011MediaSPIP est basé sur un système de thèmes et de squelettes. Les squelettes définissent le placement des informations dans la page, définissant un usage spécifique de la plateforme, et les thèmes l’habillage graphique général.
Chacun peut proposer un nouveau thème graphique ou un squelette et le mettre à disposition de la communauté. -
Possibilité de déploiement en ferme
12 avril 2011, parMediaSPIP peut être installé comme une ferme, avec un seul "noyau" hébergé sur un serveur dédié et utilisé par une multitude de sites différents.
Cela permet, par exemple : de pouvoir partager les frais de mise en œuvre entre plusieurs projets / individus ; de pouvoir déployer rapidement une multitude de sites uniques ; d’éviter d’avoir à mettre l’ensemble des créations dans un fourre-tout numérique comme c’est le cas pour les grandes plate-formes tout public disséminées sur le (...)
Sur d’autres sites (8056)
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Evolution #4753 : Styles du privé : listes d’objets (suite des boîtes et des formulaires)
30 avril 2021, par b bClasse & sobre, gogogo !
Les colonnes des tables ont des classes .importante et .secondaire.
À mon avis elle ne devraient plus avoir d’incidence en vue « normale », mais juste décider quelles colonnes afficher et masquer en vue réduite, dans les colonnes ou ailleurs.Très bonne idée, et +1 pour la classe mini.
-
The recorded video is distorted (FFMPEG)
13 décembre 2017, par No NameThe source is taken from here.
I’m initializing this :
private void initRecorder() {
Log.i(LOG_TAG, "init mFrameRecorder");
String recordedTime = new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.getDefault())
.format(new Date());
mVideo = CameraHelper.getOutputMediaFile(recordedTime, CameraHelper.MEDIA_TYPE_VIDEO);
Log.i(LOG_TAG, "Output Video: " + mVideo);
mFrameRecorder = new FFmpegFrameRecorder(mVideo, videoWidth, videoHeight, 1);
mFrameRecorder.setFormat("mp4");
mFrameRecorder.setSampleRate(sampleAudioRateInHz);
mFrameRecorder.setFrameRate(frameRate);
// Use H264
mFrameRecorder.setVideoCodec(avcodec.AV_CODEC_ID_H264);
mFrameRecorder.setVideoQuality(2);
mFrameRecorder.setVideoOption("crf", "20");
mFrameRecorder.setVideoOption("preset", "superfast");
mFrameRecorder.setVideoOption("tune", "zerolatency");
Log.i(LOG_TAG, "mFrameRecorder initialize success");
}where
frameRate = 60
;And video recording :
class VideoRecordThread extends RunningThread {
@Override
public void run() {
List<string> filters = new ArrayList<>();
// Transpose
String transpose = null;
android.hardware.Camera.CameraInfo info =
new android.hardware.Camera.CameraInfo();
android.hardware.Camera.getCameraInfo(mCameraId, info);
if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
switch (info.orientation) {
case 270:
transpose = "transpose=cclock"; // Mirrored horizontally as preview display
break;
case 90:
transpose = "transpose=clock"; // Mirrored horizontally as preview display
break;
}
} else {
switch (info.orientation) {
case 270:
transpose = "transpose=cclock";
break;
case 90:
transpose = "transpose=clock";
break;
}
}
if (transpose != null) {
filters.add(transpose);
}
// Crop (only vertically)
int width = previewHeight;
int height = width * videoHeight / videoWidth;
String crop = String.format(Locale.getDefault(),"crop=%d:%d:%d:%d",
width, height,
(previewHeight - width) / 2, (previewWidth - height) / 2);
filters.add(crop);
// Scale (to designated size)
String scale = String.format(Locale.getDefault(),"scale=%d:%d", videoHeight, videoWidth);
filters.add(scale);
FFmpegFrameFilter frameFilter = new FFmpegFrameFilter(TextUtils.join(",", filters),
previewWidth, previewHeight);
frameFilter.setPixelFormat(avutil.AV_PIX_FMT_NV21);
frameFilter.setFrameRate(frameRate);
try {
frameFilter.start();
} catch (FrameFilter.Exception e) {
e.printStackTrace();
}
isRunning = true;
FrameToRecord recordedFrame;
while (isRunning || !mFrameToRecordQueue.isEmpty()) {
try {
recordedFrame = mFrameToRecordQueue.take();
} catch (InterruptedException ie) {
ie.printStackTrace();
try {
frameFilter.stop();
} catch (FrameFilter.Exception e) {
e.printStackTrace();
}
break;
}
if (mFrameRecorder != null) {
long timestamp = recordedFrame.getTimestamp();
if (timestamp > mFrameRecorder.getTimestamp()) {
mFrameRecorder.setTimestamp(timestamp);
}
long startTime = System.currentTimeMillis();
Frame filteredFrame = null;
try {
frameFilter.push(recordedFrame.getFrame());
filteredFrame = frameFilter.pull();
} catch (FrameFilter.Exception e) {
e.printStackTrace();
}
try {
mFrameRecorder.record(filteredFrame);
} catch (FFmpegFrameRecorder.Exception e) {
e.printStackTrace();
}
long endTime = System.currentTimeMillis();
long processTime = endTime - startTime;
mTotalProcessFrameTime += processTime;
Log.d(LOG_TAG, "This frame process time: " + processTime + "ms");
long totalAvg = mTotalProcessFrameTime / ++mFrameRecordedCount;
Log.d(LOG_TAG, "Avg frame process time: " + totalAvg + "ms");
}
Log.d(LOG_TAG, mFrameRecordedCount + " / " + mFrameToRecordCount);
mRecycledFrameQueue.offer(recordedFrame);
}
}
public void stopRunning() {
super.stopRunning();
if (getState() == WAITING) {
interrupt();
}
}
}
</string>The fact is that when recording video no lags(freezes) are not noticeable. After recording the video, when you look carefully, the lags are noticeable, and if you move the phone quickly when recording, then after the recording you can see the freezes, as if you have glued several GIFs.
I tried everything I could : the frame rate changed for 30, 60, 100. I changed the Video quality, pixelFormat (although I do not know why) and many things that
I did not understand. But still no use. Maybe there is someone who understands. Tell me how to correct these distortions(freezes) ?
UPD : LogCat :
> 12-13 08:51:21.987 2968-2968/io.dev.videosample
> D/FFmpegRecordActivity: Preview frame interval: 98ms
> 12-13 08:51:22.056 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 69ms
> 12-13 08:51:22.137 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 81ms
>12-13 08:51:22.205 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 68ms
>12-13 08:51:22.254 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 49ms
>12-13 08:51:22.305 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 51ms
>12-13 08:51:22.336 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 31ms
>12-13 08:51:22.454 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 118ms
>12-13 08:51:22.494 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 40ms
>12-13 08:51:22.585 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 91ms
>12-13 08:51:22.634 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 49ms
>12-13 08:51:22.720 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 86ms
>12-13 08:51:22.783 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 63ms
>12-13 08:51:22.835 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 52ms
>12-13 08:51:22.903 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 67ms
>12-13 08:51:22.983 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 81ms
>12-13 08:51:23.070 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 87ms
>12-13 08:51:23.149 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 78ms
>12-13 08:51:23.234 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 86ms
>12-13 08:51:23.312 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 78ms
>12-13 08:51:23.395 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 83ms
>12-13 08:51:23.472 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 77ms
>12-13 08:51:23.540 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 67ms
>12-13 08:51:23.627 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 88ms
>12-13 08:51:23.660 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 33ms
>12-13 08:51:23.727 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 67ms
>12-13 08:51:23.792 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 65ms
>12-13 08:51:23.874 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 82ms
>12-13 08:51:23.942 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 68ms
>12-13 08:51:23.995 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 53ms
>12-13 08:51:24.090 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 95ms
>12-13 08:51:24.139 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 49ms
>12-13 08:51:24.224 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 85ms
>12-13 08:51:24.272 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 48ms
>12-13 08:51:24.307 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 35ms
>12-13 08:51:24.371 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 64ms
>12-13 08:51:24.437 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 66ms
>12-13 08:51:24.521 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 84ms
>12-13 08:51:24.587 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 66ms
>12-13 08:51:24.636 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 49ms
>12-13 08:51:24.719 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 83ms
>12-13 08:51:24.808 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 89ms
>12-13 08:51:24.869 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 61ms
>12-13 08:51:24.905 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 36ms
>12-13 08:51:24.952 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 46ms
>12-13 08:51:25.017 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 66ms
>12-13 08:51:25.068 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 51ms
>12-13 08:51:25.102 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 34ms
>12-13 08:51:25.204 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 102ms
>12-13 08:51:25.299 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 95ms
>12-13 08:51:25.413 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 114ms
>12-13 08:51:25.481 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 68ms
>12-13 08:51:25.563 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 82ms
>12-13 08:51:25.630 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 67ms
>12-13 08:51:25.712 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 82ms
>12-13 08:51:25.761 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 49ms
>12-13 08:51:25.844 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 83ms
>12-13 08:51:25.862 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 18ms
>12-13 08:51:25.910 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 48ms
>12-13 08:51:25.946 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 36ms
>12-13 08:51:26.033 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 87ms
>12-13 08:51:26.126 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 93ms
>12-13 08:51:26.192 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 66ms
>12-13 08:51:26.225 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 33ms
>12-13 08:51:26.275 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 50ms
>12-13 08:51:26.357 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 82ms
>12-13 08:51:26.440 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 83ms
>12-13 08:51:26.522 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 82ms
>12-13 08:51:26.589 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 67ms
>12-13 08:51:26.640 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 50ms
>12-13 08:51:26.721 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 82ms
>12-13 08:51:26.826 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 105ms
>12-13 08:51:28.408 1976-4266/? E/VDO_LOG: u4FrameTsInterval value is 0x411a, u4FrameTimingInfo 0xf000
>12-13 08:51:28.421 1976-4266/? E/MtkOmxVdecEx: [0xb872bb60] ERROR: query VDEC_DRV_GET_TYPE_GET_FRAME_INTERVAL failed -
When using libva* (ffmpeg) encoded GIF images, an error is reported when compiling the demo
10 août 2023, par yangjinhui2936issuse : I need to use the GIF encoding feature in FFMPEG to encode argb images as gifs.Because the encoding effect of using GIF library is not as good as the effect of FFMPEG.
However, several libraries like avcodec were too bulky, so I did some cropping.I just want to keep the functionality of GIF encoding.
Below is my makefile for cropping ffmpeg :


#!/bin/sh
# ./configure --prefix=$(pwd)/output --arch=arm --target-os=linux --enable-cross-compile --disable-asm --cross-prefix=arm-linux-gnueabihf- 
./configure --prefix=$(pwd)/output --target-os=linux --disable-asm \
--disable-gpl --enable-nonfree --enable-error-resilience --enable-debug --enable-shared --enable-small --enable-zlib \
--disable-ffmpeg --disable-ffprobe --disable-ffplay --disable-programs --disable-symver\
 --disable-doc --disable-htmlpages --disable-manpages --disable-podpages --disable-decoder=h264 --enable-avformat \
 --disable-txtpages --enable-avcodec --enable-avutil \
 --disable-avresample --disable-avfilter --disable-avdevice --disable-postproc \
 --disable-swscale --enable-decoder=gif --enable-demuxer=gif --enable-muxer=gif --disable-iconv \
 --disable-v4l2-m2m --disable-indevs --disable-outdevs

make clean
make -j8

make install



Then link the compiled so to the gif demo.
Blew is gif demo code(He was automatically generated by chatgpt, and I want to verify it) :


#include 
// #include "output/include/imgutils.h"
#include "libavcodec/avcodec.h"
#include "libavformat/avformat.h"
#include "libavutil/avutil.h"

int main() {
 AVCodec *enc_codec;
 AVCodecContext *enc_ctx = NULL;
 AVStream *stream = NULL;
 int ret;

 AVFormatContext *fmt_ctx = avformat_alloc_context();
 if (!fmt_ctx) {
 fprintf(stderr, "Could not allocate format context\n");
 return 1;
 }
 
 AVInputFormat *input_fmt = av_find_input_format("image2");
 if ((ret = avformat_open_input(&fmt_ctx, "input.bmp", input_fmt, NULL)) < 0) {
 fprintf(stderr, "Could not open input file %d\n", ret);
 return ret;
 }

 AVCodec *dec_codec = avcodec_find_decoder(AV_CODEC_ID_BMP);
 if (!dec_codec) {
 fprintf(stderr, "Decoder not found\n");
 return 1;
 }
 
 AVCodecContext *dec_ctx = avcodec_alloc_context3(dec_codec);
 if (!dec_ctx) {
 fprintf(stderr, "Could not allocate decoder context\n");
 return 1;
 }

 if ((ret = avcodec_open2(dec_ctx, dec_codec, NULL)) < 0) {
 fprintf(stderr, "Could not open decoder\n");
 return 1;
 }

 AVOutputFormat *out_fmt = av_guess_format("gif", NULL, NULL);
 if (!out_fmt) {
 fprintf(stderr, "Could not find output format\n");
 return 1;
 }

 AVFormatContext *out_ctx = NULL;
 if ((ret = avformat_alloc_output_context2(&out_ctx, out_fmt, NULL, NULL)) < 0) {
 fprintf(stderr, "Could not allocate output context\n");
 return 1;
 }

 stream = avformat_new_stream(out_ctx, NULL);
 if (!stream) {
 fprintf(stderr, "Could not create new stream\n");
 return 1;
 }

 enc_codec = avcodec_find_encoder(AV_CODEC_ID_GIF);
 if (!enc_codec) {
 fprintf(stderr, "Encoder not found\n");
 return 1;
 }

 enc_ctx = avcodec_alloc_context3(enc_codec);
 if (!enc_ctx) {
 fprintf(stderr, "Could not allocate encoder context\n");
 return 1;
 }

 if ((ret = avcodec_parameters_from_context(stream->codecpar, dec_ctx)) < 0) {
 fprintf(stderr, "Could not copy decoder parameters\n");
 return 1;
 }

 if ((ret = avcodec_open2(enc_ctx, enc_codec, NULL)) < 0) {
 fprintf(stderr, "Could not open encoder\n");
 return 1;
 }
 
 enc_ctx->pix_fmt = AV_PIX_FMT_RGB8; 
 enc_ctx->width = dec_ctx->width; 
 enc_ctx->height = dec_ctx->height; 
 enc_ctx->time_base = (AVRational){1, 25}; 

 avformat_init_output(out_ctx, NULL);

 if (!(out_fmt->flags & AVFMT_NOFILE)) {
 if ((ret = avio_open(&out_ctx->pb, "output.gif", AVIO_FLAG_WRITE)) < 0) {
 fprintf(stderr, "Could not open output file\n");
 return ret;
 }
 }

 avformat_write_header(out_ctx, NULL);

 AVFrame *frame = av_frame_alloc();
 AVPacket pkt;
 int frame_count = 0;

 while (av_read_frame(fmt_ctx, &pkt) >= 0) {
 avcodec_send_packet(dec_ctx, &pkt);
 while (avcodec_receive_frame(dec_ctx, frame) == 0) {
 avcodec_send_frame(enc_ctx, frame);
 while (avcodec_receive_packet(enc_ctx, &pkt) == 0) {
 pkt.stream_index = stream->index;
 av_interleaved_write_frame(out_ctx, &pkt);
 av_packet_unref(&pkt);
 }

 frame_count++;
 printf("Encoded frame %d\n", frame_count);
 }
 av_packet_unref(&pkt);
 }

 av_write_trailer(out_ctx);

 avcodec_close(enc_ctx);
 avcodec_free_context(&enc_ctx);
 avcodec_close(dec_ctx);
 avcodec_free_context(&dec_ctx);
 av_frame_free(&frame);

 avformat_close_input(&fmt_ctx);
 avformat_free_context(fmt_ctx);
 avio_close(out_ctx->pb);
 avformat_free_context(out_ctx);

 return 0;
}




Belw is shell of compile script for gif :


#!/bin/sh
gcc -o x2gif x2gif.c -L ./output/lib/ -l:libavformat.a -l:libavcodec.a -l:libavutil.a -lz -I ./output/include/



Unfortunately, the compilation did not pass.
How can I troubleshoot and resolve this issue ?


./output/lib/libavutil.a(lfg.o): In function `av_bmg_get':
/data1/yang/tool/ffmpeg-3.4.4/libavutil/lfg.c:59: undefined reference to `log'
./output/lib/libavutil.a(hwcontext_cuda.o): In function `cuda_free_functions':
/data1/yang/tool/ffmpeg-3.4.4/./compat/cuda/dynlink_loader.h:175: undefined reference to `dlclose'
./output/lib/libavutil.a(hwcontext_cuda.o): In function `cuda_load_functions':
/data1/yang/tool/ffmpeg-3.4.4/./compat/cuda/dynlink_loader.h:192: undefined reference to `dlopen'
/data1/yang/tool/ffmpeg-3.4.4/./compat/cuda/dynlink_loader.h:194: undefined reference to `dlsym'
/data1/yang/tool/ffmpeg-3.4.4/./compat/cuda/dynlink_loader.h:195: undefined reference to `dlsym'
/data1/yang/tool/ffmpeg-3.4.4/./compat/cuda/dynlink_loader.h:196: undefined reference to `dlsym'
/data1/yang/tool/ffmpeg-3.4.4/./compat/cuda/dynlink_loader.h:197: undefined reference to `dlsym'
/data1/yang/tool/ffmpeg-3.4.4/./compat/cuda/dynlink_loader.h:198: undefined reference to `dlsym'
./output/lib/libavutil.a(hwcontext_cuda.o):/data1/yang/tool/ffmpeg-3.4.4/./compat/cuda/dynlink_loader.h:199: more undefined references to `dlsym' follow
./output/lib/libavutil.a(rational.o): In function `av_d2q':
/data1/yang/tool/ffmpeg-3.4.4/libavutil/rational.c:120: undefined reference to `floor'
./output/lib/libavutil.a(eval.o): In function `eval_expr':
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:184: undefined reference to `exp'
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:185: undefined reference to `exp'
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:189: undefined reference to `floor'
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:190: undefined reference to `ceil'
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:191: undefined reference to `trunc'
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:192: undefined reference to `round'
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:263: undefined reference to `pow'
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:300: undefined reference to `floor'
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:309: undefined reference to `pow'
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:315: undefined reference to `hypot'
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:316: undefined reference to `atan2'
./output/lib/libavutil.a(eval.o): In function `ff_exp10':
/data1/yang/tool/ffmpeg-3.4.4/libavutil/ffmath.h:44: undefined reference to `exp2'
./output/lib/libavutil.a(eval.o): In function `parse_primary':
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:417: undefined reference to `sinh'
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:418: undefined reference to `cosh'
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:419: undefined reference to `tanh'
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:420: undefined reference to `sin'
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:421: undefined reference to `cos'
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:422: undefined reference to `tan'
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:423: undefined reference to `atan'
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:424: undefined reference to `asin'
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:425: undefined reference to `acos'
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:426: undefined reference to `exp'
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:427: undefined reference to `log'
/data1/yang/tool/ffmpeg-3.4.4/libavutil/eval.c:428: undefined reference to `fabs'