<div dir="auto"><div><br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">чт, 3 нояб. 2022 г., 03:14 Andrew Randrianasulu <<a href="mailto:randrianasulu@gmail.com" target="_blank" rel="noreferrer">randrianasulu@gmail.com</a>>:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto">I think we can add some clarification<div dir="auto"><br></div><div dir="auto">---</div><div dir="auto"><h1>HDV on a Blu-ray Disc Without Re-encoding
</h1>
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An MTS file is a video file saved in the high-definition (HD) MPEG Transport Stream video format, commonly called AVCHD.
It contains HD video compatible with Blu-ray disc format and is based
on the MPEG-2 transport stream. MTS files are often used by Sony,
Panasonic, Canon and other HD camcorders. Legal input for Video –
MPEG1VIDEO, MPEG2VIDEO, H264; Audio – MP1, MP2, AC3, AC3PLUS, DTS,
TRUHD.
</p><p>Note, mp2 and mp1 audio codecs are valid for transport stream itself but not as on-disk format for Blu-Rays.</p><p>In this case you still can save original video by using ffmpeg's switches</p><p> -c:v copy -c:a ac3 , while outputting into another temporal ts container.</p><p>{waiting for Terje's results on pcm_bluray case}</p><p><br></p><p>---</p><p><br></p><p>I think all m2ts files you used for testing were h264/aac (or ac3), not from-camcoder HDVs with mpeg2 video/mp2 audio. </p><p>you can try HDV-in-mov from this folder as ffmpeg test file, I think</p><p><a href="http://samples.mplayerhq.hu/mov/FCP/" rel="noreferrer noreferrer" target="_blank">http://samples.mplayerhq.hu/mov/FCP/</a></p></div></div></blockquote></div></div><div dir="auto"><br></div><div dir="auto">oh, this is not mp2 audio but pcm audio. And ..not exactly kind of pcm used on blurays!</div><div dir="auto"><br></div><div dir="auto">so this line work, note mpegts_m2ts_mode switch for enabling more bluray like output, without it ffmpeg will mux audio into private stream - good luck getting it back!</div><div dir="auto"><br></div><div dir="auto">ffmpeg -i HDV_1080i50.mov -c:v copy -c:a pcm_bluray -mpegts_m2ts_mode 1 hdv.mts<br></div><div dir="auto"><br></div><div dir="auto">then tsmuxer recognizes mts file as below:</div><div dir="auto"><br></div><div dir="auto"><div dir="auto">~/tsMuxer $ tsmuxer hdv.mts</div><div dir="auto">tsMuxeR version 2.6.16-dev. <a href="http://github.com/justdan96/tsMuxer">github.com/justdan96/tsMuxer</a></div><div dir="auto">Track ID: 4113 Stream type: MPEG-2</div><div dir="auto">Stream ID: V_MPEG-2</div><div dir="auto">Stream info: Profile: Main@6. Resolution: 1440:1080i. Frame rate: 25</div><div dir="auto">Stream lang:</div><div dir="auto"><br></div><div dir="auto">Track ID: 4352</div><div dir="auto">Stream type: LPCM</div><div dir="auto">Stream ID: A_LPCM</div><div dir="auto">Stream info: Bitrate: 1536Kbps Sample Rate: 48KHz Channels: 2 Bits per sample: 16bit</div><div dir="auto">Stream lang: eng</div><div dir="auto"><br></div><div dir="auto">Duration: 00:00:08.000</div><div dir="auto"><br></div><div dir="auto">====</div><div dir="auto"><br></div><div dir="auto">I wonder if you can cp this file few times and then cat them back together for simulating longer video ) ?</div></div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto"><div dir="auto"><p><br></p><p><br></p><p>----</p><p>
For creating a blu-ray disc, if you have HDV MPEG-2 media that is in
blu-ray format, you can save the original quality of your work, rather
than rendering it to another format. </p><p><br></p><p>{I hope Terje will let us know if bdwrite still works with bluray pcm audio as produced by ffmpeg 5.1+}</p></div></div>
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