asettb A->A Set timebase for the audio output link. ashowinfo A->A Show textual information for each audio frame. asplit A->N Pass on the audio input to N audio outputs. astats A->A Show time domain statistics about audio frames. astreamsync AA->AA Copy two streams of audio data...
ffprobe -show_format -show_programs d:\1.m2t 显示 format program 相关信息 ffprobe -show_entries program=program_num,pmt_pid,pcr_pid:stream=index,id,codec_type -i d:\1.m2t -hide_banner 显法prorgram 和stream 中的部分字段。hide_banner不显示库包文件相关版本信息。 --- part 11: 22 混合器...
/*** @brief 解析媒体文件,并打印相关媒体信息** @param fileName 输入源,如:/视频/1080P.mp4*/void show_media_info(char *fileName){int ret = -1;// 1、创建并分配一个AVFormatContext内存空间,然后做一些初始化工作;AVFormatContext *ctx = NULL;ctx = createAVFormatContext(fileName);if( NULL == ...
*/ struct AVInputFormat *iformat; struct AVOutputFormat *oformat; void *priv_data; ByteIOContext *pb; unsigned int nb_streams; AVStream *streams[MAX_STREAMS]; char filename[1024]; /**< input or output filename */ /* stream info */ int64_t timestamp; #if LIBAVFORMAT_VERSION_INT < ...
{ show_help(argv[0]); return 0; } err = avformat_open_input(&pCtx, opt.finput, 0, 0); if (err < 0) { printf("\n->(avformat_open_input)\tERROR:\t%d\n", err); goto fail; } err = avformat_find_stream_info(pCtx, 0); if (err < 0) { printf("\n->(avformat_find_...
display [Info] Compute node total weight: $total_weight # 分发任务 video_length=$(ffprobe -show_format $input_file -loglevel error| grep duration | awk -F = '{printf $2}') part_start=0 part_end=0 node_number=${#compute_node[*]} ...
import subprocess import json def get_ffprobe_info(file_path): command = ['ffprobe', '-v', 'quiet', '-print_format', 'json', '-show_format', '-show_streams', file_path] output = subprocess.check_output(command).decode('utf-8') info = json.loads(output) return info file_path =...
FFmpeg给我提供了非常好的视频信息分析的办法,使用ffprobe对音视频流的结构的分析非常方便。 首先,可以通过ffprobe --help来查看一些详细的参数的意义 usage: ffprobe [OPTIONS] [INPUT_FILE] Main options: -L show license -h topic show help -? topic show help -help to... ...
return $outPutFile;//命令执行成功,返回路径 } } /** * 视频加水印 $file = D:/source.mp4,$outPutFile=d:/compression.mp4 * $position = (leftTop,rightTop,leftBottom,rightBottom,middle);左上角,右上角,左下角,右下角 * $xOffset x坐标的偏移量,$yOffset x坐标的偏移量 ...
-qphist show QP histogram -force_fps force the selected framerate, disable the best supported framerate selection -force_key_frames timestamps force key frames at specified timestamps -vbsf video bitstream_filters deprecated -vpre preset set the video options to the indicated preset ...