使用 gstreamer 创建的 MP4 文件无法在 Window 媒体播放器上播放
MP4 file created using gstreamer doesn't be played on Window Media Player
我使用 gstreamer 创建了 mp4 文件。
gst-launch-1.0 videotestsrc num-buffers=10 ! "video/x-raw, format=(string)NV12, width=(int)1280, height=(int)720, framerate=(fraction)30/1" ! videoconvert ! avenc_mpeg4 ! avmux_mp4 ! filesink location=/tmp/test.mp4
而且我可以使用 Mplayer、VLC 等播放它。
但我无法在 Windows Media Player 上播放它。
我检查了 MP4 框。但它似乎没有问题。
我怎样才能尝试其他方式？
[Mplayer]
$ mplayer test.mp4
MPlayer 1.3.0 (Debian), built with gcc-7 (C) 2000-2016 MPlayer Team
do_connect: could not connect to socket
connect: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.
Playing test.mp4.
libavformat version 57.83.100 (external)
libavformat file format detected.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc21b56d2a0]Protocol name not provided, cannot determine if input is local or a network protocol, buffers and access patterns cannot be configured optimally without knowing the protocol
[lavf] stream 0: video (mpeg4), -vid 0
VIDEO: [MP4V] 1280x720 24bpp 29.970 fps 11338.9 kbps (1384.1 kbyte/s)
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
libavcodec version 57.107.100 (external)
Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4)
==========================================================================
Clip info:
major_brand: isom
minor_version: 512
compatible_brands: isomiso2mp41
creation_time: 2020-04-09T11:11:51.000000Z
encoder: Lavf57.71.100
Load subtitles in ./
Audio: no sound
Starting playback...
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [vdpau] 1280x720 => 1280x720 Planar YV12
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [vdpau] 1280x720 => 1280x720 Planar YV12
V: 0.3 0/ 0 ??% ??% ??,?% 0 0
Exiting... (End of file)
见https://support.microsoft.com/en-us/help/316992/file-types-supported-by-windows-media-player
MP4 Video file (.mp4, .m4v, .mp4v, .3g2, .3gp2, .3gp, .3gpp)
[..] Windows Media Player does not support the playback of the .mp4 file format. You can play back .mp4 media files in Windows Media Player when you install DirectShow-compatible MPEG-4 decoder packs [..]
我使用 gstreamer 创建了 mp4 文件。
gst-launch-1.0 videotestsrc num-buffers=10 ! "video/x-raw, format=(string)NV12, width=(int)1280, height=(int)720, framerate=(fraction)30/1" ! videoconvert ! avenc_mpeg4 ! avmux_mp4 ! filesink location=/tmp/test.mp4
而且我可以使用 Mplayer、VLC 等播放它。 但我无法在 Windows Media Player 上播放它。
我检查了 MP4 框。但它似乎没有问题。 我怎样才能尝试其他方式？
[Mplayer]
$ mplayer test.mp4
MPlayer 1.3.0 (Debian), built with gcc-7 (C) 2000-2016 MPlayer Team
do_connect: could not connect to socket
connect: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.
Playing test.mp4.
libavformat version 57.83.100 (external)
libavformat file format detected.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc21b56d2a0]Protocol name not provided, cannot determine if input is local or a network protocol, buffers and access patterns cannot be configured optimally without knowing the protocol
[lavf] stream 0: video (mpeg4), -vid 0
VIDEO: [MP4V] 1280x720 24bpp 29.970 fps 11338.9 kbps (1384.1 kbyte/s)
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
libavcodec version 57.107.100 (external)
Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4)
==========================================================================
Clip info:
major_brand: isom
minor_version: 512
compatible_brands: isomiso2mp41
creation_time: 2020-04-09T11:11:51.000000Z
encoder: Lavf57.71.100
Load subtitles in ./
Audio: no sound
Starting playback...
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [vdpau] 1280x720 => 1280x720 Planar YV12
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [vdpau] 1280x720 => 1280x720 Planar YV12
V: 0.3 0/ 0 ??% ??% ??,?% 0 0
Exiting... (End of file)
见https://support.microsoft.com/en-us/help/316992/file-types-supported-by-windows-media-player
MP4 Video file (.mp4, .m4v, .mp4v, .3g2, .3gp2, .3gp, .3gpp)
[..] Windows Media Player does not support the playback of the .mp4 file format. You can play back .mp4 media files in Windows Media Player when you install DirectShow-compatible MPEG-4 decoder packs [..]