执行avprobe test.h264
输出
Input #0, h264, from 'test.h264':
Duration: N/A, bitrate: N/A
Stream #0.0: Video: h264 (High), yuv420p, 720x480, 25 fps, 25 tbn, 50 tbc
执行file test.h264
输出
test.h264: JVT NAL sequence, H.264 video @ L 30
请注意,该文件没有损坏或损坏,我可以在 VLC 上毫无问题地播放它。
有没有办法从原始 H264 文件中获取持续时间和比特率?我在某处读到,如果我先解码文件可能有可能,但我不确定如何做到这一点。
编辑#1
我是使用 Python 库创建 H264 文件的人picamera
。
编辑#2
运行时的控制台输出avconv -i test.h264 -f null -
avconv version 11.7-6:11.7-1~deb8u1+rpi1, Copyright (c) 2000-2016 the Libav developers
built on Jun 17 2016 02:13:49 with gcc 4.9.2 (Raspbian 4.9.2-10)
[h264 @ 0x1bcc200] Estimating duration from bitrate, this may be inaccurate
Input #0, h264, from 'test.h264':
Duration: N/A, bitrate: N/A
Stream #0.0: Video: h264 (High), yuv420p, 720x480, 25 fps, 25 tbn
Output #0, null, to 'pipe:':
Metadata:
encoder : Lavf56.1.0
Stream #0.0: Video: rawvideo, yuv420p, 720x480, q=2-31, 200 kb/s, 25 tbn, 25 tbc
Metadata:
encoder : Lavc56.1.0 rawvideo
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> rawvideo (native))
Press ctrl-c to stop encoding
frame= 208 fps= 68 q=0.0 Lsize= 0kB time=10000000000.00 bitrate= 0.0kbits/s
video:13kB audio:0kB other streams:0kB global headers:0kB muxing overhead: unknown