一共15种组合一下搞定;先伪代码没逻辑错误,然后就撸正式代码,后面测试就有点小顺利了
伪代码:
根据参数构造ffmpeg参数命令 构造元素视频方面有水印,文字,去水印;音频方面有混音一个 构造顺序: 先音频后视频 1:音频 2:水印 3:文字 4:去水印 伪代码 audioExist = false videoExist = false var filterPara string var tailPara string cmd += ffmpeg -loglevel verbose -i a.mp4 if(音频||水印||文字||去水印) filterPara += -filter_complex if(音频) cmd += -i b.mp3 filterPara += "[0:a][1:a]amix=inputs=2:duration=shortest:dropout_transition=2[a]" tailPara += '-map 0:v:0 -map "[a]"' audioExist = true if(水印) cmd += -i c.jpg if(audioExist) filterPara += ;[2:v]scale=94:167[vv];[0:v][vv]overlay=102:102 else filterPara += [1:v]scale=94:167[vv];[0:v][vv]overlay=102:102 videoExist = true if(文字) if(!audioExist&&!videoExist) filterPara += "" else if(videoExist) filterPara += "," else filterPara += ";" filterPara += ... videoExist = true if(去水印) if(!audioExist&&!videoExist) filterPara += "" else if(videoExist) filterPara += "," else filterPara += ";" filterPara += ... tailPara += -f mp4 -movflags faststart fileName.mp4 -y cmd += filterPara + tailParaimplemented with golang
func (modify *ModifyVideo) CombineCmd(taskid, mp4Url, audioUrl, outputFile string, imageLayer Imagelayers, delogo DelogoBody, txtLayer []Txtlayers) (ffmpegCmd, outputDir string) { if "" == mp4Url { return } _, err := os.Stat(logDir) if err == nil { fmt.Printf("mkdir logDir success\n") } if err != nil && os.IsNotExist(err) { err = os.MkdirAll(logDir, 0777) if err == nil { utils.Log.Debug("mkdir logDir success") } else { utils.Log.Debug("mkdir logDir failed") } } audioExist := false videoExist := false var filterPara string var tailPara string ffmpegCmd += "ffmpeg -loglevel verbose -i \"" + mp4Url + "\" " if audioUrl != "" || imageLayer.Src != "" || len(txtLayer) != 0 || delogo.Height != "" { filterPara += " -filter_complex \"" } if audioUrl != "" { ffmpegCmd += " -i \"" + audioUrl + "\" " filterPara += "[0:a][1:a]amix=inputs=2:duration=shortest:dropout_transition=2[a]" tailPara += " -map 0:v:0 -map \"[a]\" " audioExist = true } if imageLayer.Src != "" { ffmpegCmd += " -i \"" + imageLayer.Src + "\" " filterPara += modify.combImageLayer(audioExist, imageLayer) log4plus.Debug("after imageLayer added: filter para is: %s", filterPara) videoExist = true } if len(txtLayer) != 0 { if !audioExist && !videoExist { filterPara += "" } else if videoExist { filterPara += "," } else { filterPara += ";" } filterPara += modify.combTxtLayer(txtLayer) log4plus.Debug("after txtLayer added: filter para is: %s", filterPara) videoExist = true } if delogo.Height != "" { if !audioExist && !videoExist { filterPara += "" } else if videoExist { filterPara += "," } else { filterPara += ";" } filterPara += modify.combDelogo(delogo) log4plus.Debug("after delogo added: filter para is: %s", filterPara) videoExist = true } //tail of filtergraph end with " filterPara += "\"" //输出路径 outputDir += "/modifyvideo/" curStamp := strconv.Itoa(int(time.Now().Unix())) outputDir += taskid + "/" outputDir += curStamp err = os.MkdirAll(outputFile+outputDir, 0777) if err == nil { fmt.Printf("makdir success\n") } else { fmt.Printf("makdir failed\n") } outputDir += "/" fileName, isValid := getFileName(mp4Url, curStamp) log4plus.Debug("isvalid:%t, fileName:%s", isValid, fileName) if isValid { outputDir += fileName } else { outputDir += "out_" + curStamp + ".mp4" } outputFile += outputDir _, err1 := os.Create(outputFile) if err1 == nil { fmt.Printf("create file success\n") } else { fmt.Printf("create file failed\n") } tailPara += " -f mp4 -movflags faststart " tailPara += outputFile tailPara += " -y " //overwrite parameter ffmpegCmd += filterPara + tailPara log4plus.Debug("\ttailPara is %s\n\tffmpegCmd is %s", tailPara, ffmpegCmd) fflog := logDir + "/" + strconv.Itoa(logId) + "_" + strconv.Itoa(int(time.Now().Unix())) + ".log" logId++ ffmpegCmd += " >" + fflog + " 2>&1" fmt.Println(ffmpegCmd) utils.Log.Debug("ffmpegCmd = " + ffmpegCmd) return }
测试
4个滤镜全组合: 4+6+4+1 = 15种情况
四个全选
//音频+水印+文本+去水印
curl -i -d '{"audiourl":"http://zxw-ybktest.chinacloudapp.cn/otvcloud_y1cc0ca0-f176-44d3-9d6c-d0634e71c5f6.mp3","cpid":"yz","mp4url":"http://183.131.106/lzy2214test.mp4","returl":"http://180.11.29.170:8880/backend-web/content/recReEditUrl.do","taskid":"1","imagelayers":{"height":"167","offsetX":"102","offsetY":"102","src":"http://13.131.159.21:1006/lzy/1522458959462-1522458959386_24_u=657178443,1345964771&fm=27&gp=0.jpg","width":"94"},"delogo":{"height":"20","offsetX":"10","offsetY":"10","width":"100"},"txtlayers":[{"fontColor":"#000000","fontSize":"14","offsetX":"305","offsetY":"277","text":"world"},{"fontColor":"#000000","fontSize":"14","offsetX":"100","offsetY":"100","text":"hello"}]}' http://183.11.19.27:8080/editvod
四个全选
//音频+水印+文本+去水印
curl -i -d '{"audiourl":"http://zxw-ybktest.chinacloudapp.cn/otvcloud_y1cc0ca0-f176-44d3-9d6c-d0634e71c5f6.mp3","cpid":"yz","mp4url":"http://183.131.106/lzy2214test.mp4","returl":"http://180.11.29.170:8880/backend-web/content/recReEditUrl.do","taskid":"1","imagelayers":{"height":"167","offsetX":"102","offsetY":"102","src":"http://13.131.159.21:1006/lzy/1522458959462-1522458959386_24_u=657178443,1345964771&fm=27&gp=0.jpg","width":"94"},"delogo":{"height":"20","offsetX":"10","offsetY":"10","width":"100"},"txtlayers":[{"fontColor":"#000000","fontSize":"14","offsetX":"305","offsetY":"277","text":"world"},{"fontColor":"#000000","fontSize":"14","offsetX":"100","offsetY":"100","text":"hello"}]}' http://183.11.19.27:8080/editvod