hls-prefer-native wrong mp4 in result

[miflinak]

For example I'm running:
youtube-dl --hls-prefer-native 'http://rutube.ru/play/embed/8326598' --output 'test.mp4'
Result file size: 117590616
And then trying to open in ffmpeg (to show that mp4 is wrong):
ffmpeg -i test.mp4 -codec copy test.mkv -y
Result: (don't work)

Input #0, mpegts, from 'test.mp4':
  Duration: 00:08:29.15, start: 0.700000, bitrate: 1847 kb/s
  Program 1
    Stream #0:0[0x101]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p, 1280x720, 23.98 fps, 23.98 tbr, 90k tbn, 47.94 tbc
    Stream #0:1[0x102]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 44100 Hz, stereo, fltp, 130 kb/s
[matroska @ 0x3928660] Codec for stream 0 does not use global headers but container format requires global headers
[matroska @ 0x3928660] Codec for stream 1 does not use global headers but container format requires global headers
[matroska @ 0x3928660] Error parsing AAC extradata, unable to determine samplerate.
Output #0, matroska, to 'test.mkv':
  Metadata:
    encoder         : Lavf57.4.100
    Stream #0:0: Video: h264 (H264 / 0x34363248), yuv420p, 1280x720, q=2-31, 23.98 fps, 23.98 tbr, 1k tbn, 90k tbc
    Stream #0:1: Audio: aac ([255][0][0][0] / 0x00FF), 44100 Hz, stereo, 130 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (copy)
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument

And it working fine when downloading without "hls-prefer-native".

[dstftw]

What are you trying to achieve in the first place?

[dstftw]

Your command works fine for me, most likely you have an outdated ffmpeg.

> py26yt http://rutube.ru/play/embed/8326598 --hls-prefer-native
[rutube:embed] 8326598: Downloading webpage
[rutube] 1538d0f2b2f21f1afc272b23d8c6505d: Downloading video JSON
[rutube] 1538d0f2b2f21f1afc272b23d8c6505d: Downloading options JSON
[rutube] 1538d0f2b2f21f1afc272b23d8c6505d: Downloading f4m manifest
[rutube] 1538d0f2b2f21f1afc272b23d8c6505d: Downloading f4m manifest
[rutube] 1538d0f2b2f21f1afc272b23d8c6505d: Downloading f4m manifest
[rutube] 1538d0f2b2f21f1afc272b23d8c6505d: Downloading f4m manifest
[rutube] 1538d0f2b2f21f1afc272b23d8c6505d: Downloading m3u8 information
[hlsnative] Downloading m3u8 manifest
[hlsnative] Total fragments: 64
[download] Destination: Ответь мне, Галко-чан! 8 серия [русские субтитры AniPlay.TV] Oshiete! Galko-chan-1538d0f2b2f21f1afc272b23d8c6505d.mp4
[download] 100% of 112.14MiB in 04:21

> ffmpeg.exe -i "Ответь мне, Галко-чан! 8 серия [русские субтитры AniPlay.TV] Oshiete! Galko-chan-1538d0f2b2f21f1afc272b23d8c6505d.mp4" -codec copy test.mkv -y
ffmpeg version 3.0 Copyright (c) 2000-2016 the FFmpeg developers
  built with gcc 5.3.0 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-l
ibilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --en
able-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --
enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-d
ecklink --enable-zlib
  libavutil      55. 17.103 / 55. 17.103
  libavcodec     57. 24.102 / 57. 24.102
  libavformat    57. 25.100 / 57. 25.100
  libavdevice    57.  0.101 / 57.  0.101
  libavfilter     6. 31.100 /  6. 31.100
  libswscale      4.  0.100 /  4.  0.100
  libswresample   2.  0.101 /  2.  0.101
  libpostproc    54.  0.100 / 54.  0.100
Input #0, mpegts, from '╨Ю╤В╨▓╨╡╤В╤М ╨╝╨╜╨╡, ╨У╨░╨╗╨║╨╛-╤З╨░╨╜! 8 ╤Б╨╡╤А╨╕╤П [╤А╤Г╤Б╤Б╨║╨╕╨╡ ╤Б╤Г╨▒╤В╨╕╤В╤А╤Л AniPlay.TV] Oshiete! Galko-chan-1538d0f2b2f21f1afc
272b23d8c6505d.mp4':
  Duration: 00:08:29.15, start: 0.700000, bitrate: 1847 kb/s
  Program 1
    Stream #0:0[0x101]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p, 1280x720, 23.98 fps, 23.98 tbr, 90k tbn, 47.94 tbc
    Stream #0:1[0x102]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 44100 Hz, stereo, fltp, 130 kb/s
Output #0, matroska, to 'test.mkv':
  Metadata:
    encoder         : Lavf57.25.100
    Stream #0:0: Video: h264 (H264 / 0x34363248), yuv420p, 1280x720, q=2-31, 23.98 fps, 23.98 tbr, 1k tbn, 90k tbc
    Stream #0:1: Audio: aac (LC) ([255][0][0][0] / 0x00FF), 44100 Hz, stereo, 130 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame=12127 fps=0.0 q=-1.0 Lsize=  108118kB time=00:08:29.09 bitrate=1739.7kbits/s speed=1.21e+003x
video:99910kB audio:8105kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.095156%