32 lines
1018 B
Python
32 lines
1018 B
Python
# 使用PyAV（FFmpeg的Python绑定）
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import av
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def extract_timestamps_from_ts(ts_file):
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container = av.open(ts_file)
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video_stream = container.streams.video[0]
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frame_index = 0
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for packet in container.demux(video_stream):
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for frame in packet.decode():
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# 获取精确时间信息
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pts_ms = frame.pts * video_stream.time_base * 1000
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dts_ms = frame.dts * video_stream.time_base * 1000 if frame.dts else None
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print(f"帧 {frame_index}:")
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print(f" PTS: {pts_ms:.3f} ms")
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print(f" DTS: {dts_ms:.3f} ms" if dts_ms else " DTS: None")
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print(f" 类型: {frame.pict_type}") # I, P, B
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print(f" 关键帧: {frame.key_frame}")
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frame_index += 1
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# 精度：可以达到微秒级
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def main():
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# extract_timestamps_from_ts("D:\\ProjectDoc\\Police\\data\\hls\\segment_00000001.ts")
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extract_timestamps_from_ts("raw_segments\\segment_00001619.ts")
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if __name__ == "__main__":
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main() |