ffmpeg -loglevel error -i "$input_file" -y "${output_filename}.$format" done # # heif-enc only support jpg file convert # [[ "$file_format" =~ ^'JPEG ' ]] && heif-enc "$input_file" -o "${output_filename}.heic" echo "$input_file completed." } mkdir -p "$output_dir"...
ret = sws_scale(convert_context, raw_frame->data, raw_frame->linesize, 0, in_height, encoded_frame->data, encoded_frame->linesize); if (ret < 0) { std::cerr << "Cannot convert image format: " << av_err2str(ret) << std::endl; goto end; } encoded_frame->pts = av_rescale_...
avcodec_free_frame(&pFrameOut); sws_freeContext(pConvert_ctx); } 注意转换的宽高不能搞错,否则非但不能转换正确,还有可能crash。附调试用的保存图片函数DumpImage,可以使用该函数查看原始数据是否正确或者格式转换是否成功: BOOL DumpBmp(constchar*filename, uint8_t *pRGBBuffer,intwidth,intheight,intbpp) ...
AVPixelFormat format; } RawVideoFrame; static void convertRawVideo(RawVideoFrame &in, RawVideoFrame &out); 然后在ffmpegutils.cpp文件中实现此方法 void FFmpegUtils::convertRawVideo(RawVideoFrame &in, RawVideoFrame &out){ int ret = 0; // 转换上下文 SwsContext *ctx = nullptr; // 输入/输出...
convertToFormat(QImage::Format_RGB888); // 初始化转换上下文 if (m_swsEnContext == NULL) { m_swsEnContext = sws_getContext(_img.width(), _img.height(), AV_PIX_FMT_RGB24, m_enContext->width, m_enContext->height, m_enContext->pix_fmt, SWS_FAST_BILINEAR, NULL, NULL, NULL); ...
在yuv->rgb时是用的ffmpeg的像素格式转换函数: sws_scale(img_convert_ctx, frame->data, frame->linesize,0, h, pFrameRGB->data, pFrameRGB->linesize); 具体实现如下: #include <stdio.h>#include <stdlib.h>#include <string.h>#include <libavformat/avformat.h>#include <libavcodec/avcodec.h>#...
sws_scale(img_convert_ctx, (uint8_t const * const *)src_frame->data, src_frame->linesize, 0, src_frame->height, dst_frame->data, dst_frame->linesize); src_frame->pts = i; /* encode the image */ ret = avcodec_encode_video2(pCodecCtx, &pkt, dst_frame, &got_output);//编码...
Place.wmv- It means you want to have a video named Place in .wmv format. Step 4: Check the converted video After a while, the video will be converted. Now it is done. Part 2: How to Use FFmpeg to Edit and Convert Videos on Mac ...
(pCodecCtx,pFrame,&got_picture,packet);if(ret<0){printf("解码错误\n");return-1;}if(got_picture){/*img_convert_ctx = sws_getContext(pCodecCtx->width, pCodecCtx->height, pCodecCtx->pix_fmt, pCodecCtx->width, pCodecCtx->height, PIX_FMT_UYVY422, SWS_BICUBIC, NULL, NULL, NULL)...
TSC rotate V->V Rotate the input image. T.. sab V->V Apply shape adaptive blur. ... scale V->V Scale the input video size and/or convert the image format. ... select V->N 选择视频帧并传给输出 ... sendcmd V->V Send commands to filters. ...