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• avcodec/exr : use the correct step value for plane pointers

  5 mars, par James Almer

  avcodec/exr : use the correct step value for plane pointers
  Fixes a regression since 0e917389fe73c932049635d947bba076f1709589.
  Signed-off-by : James Almer <jamrial@gmail.com>
  

  • [DH] libavcodec/exr.c
  • [DH] tests/ref/fate/exr-rgb-tile-half-piz-dw-large
  • [DH] tests/ref/fate/exr-rgb-tile-half-zip

• The problem of code that generated typescript (node-fluent-ffmpeg module)

  10 décembre 2022, par Steve Rock

  This is my typescript code :

  



  import { NestFactory } from '@nestjs/core';
import { AppModule } from './app.module';
import { FfmpegCommand } from 'fluent-ffmpeg'

async function bootstrap() {
  const app = await NestFactory.create(AppModule);
  let test

  try {
    test = new FfmpegCommand('./adventure.mkv');
  } catch (error) {
    console.log(error);

  }

  await app.listen(3000);
}

bootstrap();


  



  Generated Javascript code :

  



  "use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
const core_1 = require("@nestjs/core");
const app_module_1 = require("./app.module");
const fluent_ffmpeg_1 = require("fluent-ffmpeg");
function bootstrap() {
    return __awaiter(this, void 0, void 0, function* () {
        const app = yield core_1.NestFactory.create(app_module_1.AppModule);
        let test;
        try {
            test = new fluent_ffmpeg_1.FfmpegCommand('./adventure.mkv');
        }
        catch (error) {
            console.log(error);
        }
        yield app.listen(3000);
    });
}
bootstrap();
//# sourceMappingURL=main.js.map


  



  When I run this application I've next error :

  



  main.ts:12
message :"fluent_ffmpeg_1.FfmpegCommand is not a constructor"
stack :"TypeError : fluent_ffmpeg_1.FfmpegCommand is not a constructor\n at c :\nest\dist\src\main.js:20:20\n at Generator.next ()\n at fulfilled (c :\nest\dist\src\main.js:5:58)\n at process._tickCallback (internal/process/next_tick.js:68:7)\n at Function.Module.runMain (internal/modules/cjs/loader.js:834:11)\n at startup (internal/bootstrap/node.js:283:19)\n at bootstrapNodeJSCore (internal/bootstrap/node.js:622:3)"

  



  That's beacause this raw test = new fluent_ffmpeg_1.FfmpegCommand('./adventure.mkv'). When I change this on just test = new fluent_ffmpeg_1('./adventure.mkv') I haven't the error. Do you know how to fix it. If you know where are ffmpeg exapmles on typescript please share with me :)

  


• Stack two video side and side but play one after another

  2 mai 2022, par user1087474

  I have two videos, that i want to concatenate side by side but second one should play after the first one is finished playing.
If the video is not playing, thumbnail should be shown

  


  Below is the example that i want to achieve using ffmpeg
https://twitter.com/sunmor2901/status/1520024861619658752

  


  I have used below command but both videos are runing simultaneously. Second, I also want to display a small text below the video describing what this video is all about (as seen in sample video link in question)

  


  ffmpeg -i 1.mp4 -i 2.mp4 \
  -filter_complex 
    "[0][1]scale2ref='ohmdar':'if(lt(main_h,ih),ih,main_h)'[0s][1s];\
     [1s][0s]scale2ref='ohmdar':'if(lt(main_h,ih),ih,main_h)'[1s][0s];\
     [0:a][1:a]amerge=inputs=2[a];[0s][1s]hstack,setsar=1" \
  -map "[a]" -ac 2 o.mp4