下面就是视频的信息,个别的我知道什么意思,但是大多数不知道,谁能给解释下?
"streams": [
{
"index": 0,
"codec_name": "h264",
"codec_long_name": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10",
"profile": "Baseline",
"codec_type": "video",
"codec_time_base": "1/180000",
"codec_tag_string": "avc1",
"codec_tag": "0x31637661",
"width": 640,
"height": 360,
"coded_width": 640,
"coded_height": 368,
"has_b_frames": 0,
"sample_aspect_ratio": "0:1",
"display_aspect_ratio": "0:1",
"pix_fmt": "yuv420p",
"level": 30,
"chroma_location": "left",
"refs": 1,
"is_avc": "true",
"nal_length_size": "4",
"r_frame_rate": "30/1",
"avg_frame_rate": "82845000/2759069",
"time_base": "1/90000",
"start_pts": 0,
"start_time": "0.000000",
"duration_ts": 5518138,
"duration": "61.312644",
"bit_rate": "999962",
"bits_per_raw_sample": "8",
"nb_frames": "1841",
"disposition": {
"default": 1,
"dub": 0,
"original": 0,
"comment": 0,
"lyrics": 0,
"karaoke": 0,
"forced": 0,
"hearing_impaired": 0,
"visual_impaired": 0,
"clean_effects": 0,
"attached_pic": 0
},
"tags": {
"creation_time": "2016-10-21 08:56:15",
"language": "eng",
"handler_name": "VideoHandle"
}
},
{
"index": 1,
"codec_name": "aac",
"codec_long_name": "AAC (Advanced Audio Coding)",
"profile": "LC",
"codec_type": "audio",
"codec_time_base": "1/44100",
"codec_tag_string": "mp4a",
"codec_tag": "0x6134706d",
"sample_fmt": "fltp",
"sample_rate": "44100",
"channels": 2,
"channel_layout": "stereo",
"bits_per_sample": 0,
"r_frame_rate": "0/0",
"avg_frame_rate": "0/0",
"time_base": "1/44100",
"start_pts": 0,
"start_time": "0.000000",
"duration_ts": 2716351,
"duration": "61.595261",
"bit_rate": "123638",
"max_bit_rate": "96000",
"nb_frames": "2652",
"disposition": {
"default": 1,
"dub": 0,
"original": 0,
"comment": 0,
"lyrics": 0,
"karaoke": 0,
"forced": 0,
"hearing_impaired": 0,
"visual_impaired": 0,
"clean_effects": 0,
"attached_pic": 0
},
"tags": {
"creation_time": "2016-10-21 08:57:26",
"language": "eng",
"handler_name": "VideoHandle"
}
}
],
"format": {
"nb_streams": 2,
"nb_programs": 0,
"format_name": "mov,mp4,m4a,3gp,3g2,mj2",
"format_long_name": "QuickTime / MOV",
"start_time": "0.000000",
"duration": "61.594444",
"size": "8653336",
"bit_rate": "1123911",
"probe_score": 100,
"tags": {
"major_brand": "isom",
"minor_version": "0",
"compatible_brands": "isom3gp4",
"creation_time": "2016-10-21 08:57:28"
}
}