针对这个问题,只能用ffmpeg的sws_scale把YUVJ420P转换成YUV420P后再送给h264_nvenc硬件编码器进行编码。 #if ISCHANGEFRAME if (frame->format == AV_PIX_FMT_YUVJ420P) { sws_scale(convert_ctx,frame->data, frame->linesize, 0, Height, frameYUV->data, frameYUV->linesize); frameYUV->format = AV...
pFrame->pts = av_frame_get_best_effort_timestamp(pFrame); if (filter_change) apply_filters(pFormatCtx); filter_change = 0; /* push the decoded frame into the filtergraph */ if (av_buffersrc_add_frame(buffersrc_ctx, pFrame) < 0) { printf("Error while feeding the filtergraph\n")...
-I$(INCLUDE_PATH)libavcodec/ -I$(INCLUDE_PATH)libswresample \ -I$(INCLUDE_PATH)libavfilter/ -I$(INCLUDE_PATH)libavformat \ -I$(INCLUDE_PATH)libswscale/ FFMPEG_LIBS = -lavformat -lavutil -lavdevice -lavcodec -lswresample -lavfilter -lswscale SDL_LIBS = LIBS = $(FFMPEG_LIBS)$(SD...
pFrame->pts = av_frame_get_best_effort_timestamp(pFrame); if (filter_change) apply_filters(pFormatCtx); filter_change = 0; /* push the decoded frame into the filtergraph */ if (av_buffersrc_add_frame(buffersrc_ctx, pFrame) < 0) { printf("Error while feeding the filtergraph\n")...
Global options (affect whole program instead of just one file):-y overwrite output files //覆盖输出文件,即如果 output.wmv 文件已经存在的话,不经提示就覆盖掉-n never overwrite output files-vol volume change audio volume (256=normal)Per-file main options:-f fmt force format-c codec codec name...
-vol volume change audio volume (256=normal)Per-file main options: 主选项 -f fmt force format 文件格式 -c codec codec name 编码名称 -codec codec codec name -pre preset preset name -map_metadata outfile[,metadata]:infile[,metadata] set metadata information of outfile from in...
frame->format != pix_fmt) { /* To handle this change, one could call av_image_alloc again and * decode the following frames into another rawvideo file. */ fprintf(stderr, "Error: Width, height and pixel format have to be "
scaleScale the input video size and/or convert the image format. scale2refScale the input video size and/or convert the image format to the given reference. scdetDetect video scene change scrollScroll input video. selectSelect video frames to pass in output. ...
-vol volume change audio volume (256=normal) Advanced global options: -cpuflags flags force specific cpu flags -benchmark add timings for benchmarking -benchmark_all add timings for each task -progress url write program-readable progress information ...
chcp 就是change code page 65001是unicode字符集 支持中文 音视频录制 录制视频(默认参数) ● 桌面:ffmpeg -f dshow -i video="screen-capture-recorder" v-out.mp4 ● 摄像头: ffmpeg -f dshow -i video="Integrated Webcam" -y v-out2.flv (要根据自己摄像头名称) 录制声音(默认参数) ● 系统...