Looking at the output of ffplay, it's reporting a time_base of 0.000011, and
I can't immediately see why our two values would be different,
I'm saving the time base immediately after opening my audio and video
codecs:
// Try opening audio/video codecs
if (!fail) {
audio_codec_ctx_ = p_format_ctx_->streams[audio_stream_]->codec;
video_codec_ctx_ = p_format_ctx_->streams[video_stream_]->codec;
// Find decoders
audio_codec_ = avcodec_find_decoder(audio_codec_ctx_->codec_id);
video_codec_ = avcodec_find_decoder(video_codec_ctx_->codec_id);
// And open
if (!audio_codec_ || (avcodec_open(audio_codec_ctx_, audio_codec_) < 0))
{
fail = true;
fail_message = "Couldn't open audio codec.";
}
if (!video_codec_ || (avcodec_open(video_codec_ctx_, video_codec_) < 0))
{
fail = true;
fail_message = "Couldn't open video codec.";
}
}
// Save time base of video stream
time_base_ =
av_q2d(p_format_ctx_->streams[video_stream_]->codec->time_base);
Which is in the constructor of this particular object. I thought perhaps I
was grabbing the time_base at the wrong time, but the value seems to be a
consistent
0.016683 regardless of where I examine it. At least my code and ffplay
agree on PTS values.
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