ffmpeg录视频，播放时有快动作，偶尔出现

Question

请问各位大神，我用ffmpeg录视频，pts一直是递增的，但是录制出来的视频帧有回跳（类似快动作，比如播放到15s，然后16s，15s，17s跳动），哪位大神知道原因不

部分代码：

AVPacket pkt = { 0 };
av_init_packet(&pkt);
if (video_first_timestamp == 0) {
video_first_timestamp = timestamp;
}

pkt.stream_index = 0;
pkt.data = data;
pkt.size = data_size;
pkt.flags |= !ret ? AV_PKT_FLAG_KEY : 0;
pkt.pos = -1;
// 当前帧到第一帧的时间
pkt.pts = (timestamp - video_first_timestamp)
        / av_q2d(record_video_st->time_base) / 1000;
pkt.dts = pkt.pts;
// 两帧之间的时间间隔
pkt.duration = pkt.pts - video_pre_pts;

video_pre_pts = pkt.pts;

if (audio_start_timestamp == 0 && isAudioMute == 1) {
    audio_start_timestamp = timestamp;
} else if (isAudioMute == 1) {
    audio_time_virtual_interval = timestamp - audio_start_timestamp;
}

LOGI("pkt.pts: %lld ,pkt.duration: %lld  ,video_first_timestamp: %lld\n",
        pkt.pts, pkt.duration,video_first_timestamp);

ret = av_interleaved_write_frame(pFmtCtx, &pkt);

av_packet_unref(&pkt);

if (ret != 0) {
    LOGI("Write video frame failed!\n");
}

return 0;

Answer 1

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