MP4 files wit AAC
Locked
 
|
Hi, my recording pipeline produces MP4 files with H264 video and AAC audio (using avenc_aac). These can be played using my player pipeline, with VLC and with Media Player
Classic but not with Windows Media Player 12. Does anyone have an explanation or even a solution I am currently using GStreamer 1.8.2 on Windows 7/x64 Grüße _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
|
|
According to Microsoft support, then it says. See https://support.microsoft.com/en-us/kb/316992"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. DirectShow-compatible MPEG-4 decoder packs include the Ligos LSX-MPEG Player and the EnvivioTV." On Wed, Sep 14, 2016 at 4:00 PM, Thornton, Keith <[hidden email]> wrote:
_______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
|
|
I know that I can play MP4 files on Windows 7 when I install LAV filters but my customer requires that my files should be playable on a windows out of the box. If I use ffmpeg to transcode them from mp4/h264/aac to mp4/h264/aac the files are then playable so what I need to know is what is ffmpeg doing that the avenc_aac
is not doing. Von: gstreamer-devel [mailto:[hidden email]]
Im Auftrag von Peter Maersk-Moller According to Microsoft support, then it says. The page states WMP12 supports mp4 and further down they write it doesn't. On Wed, Sep 14, 2016 at 4:00 PM, Thornton, Keith <[hidden email]> wrote:
_______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
|
|
On Thu, 2016-09-15 at 05:29 +0000, Thornton, Keith wrote:
Hi Keith, > If I use ffmpeg to transcode them from mp4/h264/aac to mp4/h264/aac > the files are then playable so what I need to know is what is ffmpeg > doing that the avenc_aac is not doing. It would be interesting to see the output of gst-discoverer-1.0 -v and ffplay on a gst/avenc_acc-produced file vs. an ffmpeg-transcoded one then. Maybe it's a codec profile thing or so. Cheers -Tim -- Tim Müller, Centricular Ltd - http://www.centricular.com Join us at the GStreamer Conference! 10-11 October 2016 in Berlin, Germany https://gstreamer.freedesktop.org/conference/ _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
|
|
Maybe its worth trying faac plugin.
Tõnu. > On 15 Sep 2016, at 10:55, Tim Müller <[hidden email]> wrote: > > On Thu, 2016-09-15 at 05:29 +0000, Thornton, Keith wrote: > > Hi Keith, > >> If I use ffmpeg to transcode them from mp4/h264/aac to mp4/h264/aac >> the files are then playable so what I need to know is what is ffmpeg >> doing that the avenc_aac is not doing. > > It would be interesting to see the output of gst-discoverer-1.0 -v and > ffplay on a gst/avenc_acc-produced file vs. an ffmpeg-transcoded one > then. > > Maybe it's a codec profile thing or so. > > Cheers > -Tim > > -- > Tim Müller, Centricular Ltd - http://www.centricular.com > > Join us at the GStreamer Conference! > 10-11 October 2016 in Berlin, > Germany > https://gstreamer.freedesktop.org/conference/ > _______________________________________________ > gstreamer-devel mailing list > [hidden email] > https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
|
|
My installation of 1.8.2 doesn't seem to have libgstfaac. It only has libgstfaad.
-----Ursprüngliche Nachricht----- Von: gstreamer-devel [mailto:[hidden email]] Im Auftrag von Tonu Jaansoo Gesendet: Donnerstag, 15. September 2016 10:05 An: Discussion of the development of and with GStreamer <[hidden email]> Betreff: Re: MP4 files wit AAC Maybe its worth trying faac plugin. Tõnu. > On 15 Sep 2016, at 10:55, Tim Müller <[hidden email]> wrote: > > On Thu, 2016-09-15 at 05:29 +0000, Thornton, Keith wrote: > > Hi Keith, > >> If I use ffmpeg to transcode them from mp4/h264/aac to mp4/h264/aac >> the files are then playable so what I need to know is what is ffmpeg >> doing that the avenc_aac is not doing. > > It would be interesting to see the output of gst-discoverer-1.0 -v and > ffplay on a gst/avenc_acc-produced file vs. an ffmpeg-transcoded one > then. > > Maybe it's a codec profile thing or so. > > Cheers > -Tim > > -- > Tim Müller, Centricular Ltd - http://www.centricular.com > > Join us at the GStreamer Conference! > 10-11 October 2016 in Berlin, > Germany > https://gstreamer.freedesktop.org/conference/ > _______________________________________________ > gstreamer-devel mailing list > [hidden email] > https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
|
|
In reply to this post by Tim Müller
Hi,
ffplay outputs the following form y file with avenc_aac Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/temp/mit_audio__0000.mp4': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: mp42mp41isomiso2 creation_time : 2016-04-28 10:55:59 Duration: 00:00:19.74, start: 0.000000, bitrate: 12263 kb/s Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 12133 kb/s, 50 fps, 50 tbr, 5k tbn, 100 tbc (default) Metadata: creation_time : 2016-04-28 10:55:59 handler_name : VideoHandler Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 168 kb/s (default) Metadata: creation_time : 2016-04-28 10:55:59 handler_name : SoundHandler 2.99 A-V: -0.020 fd= 23 aq= 15KB vq= 1069KB sq= 0B f=0/0 And Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/temp/mit_audio__0000_ffmpeg.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf57.19.100 Duration: 00:00:19.66, start: 0.036281, bitrate: 12271 kb/s Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 12133 kb/s, 50 fps, 50 tbr, 10k tbn, 100 tbc (default) Metadata: handler_name : VideoHandler Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default) Metadata: handler_name : SoundHandler 2.25 A-V: 0.004 fd= 15 aq= 12KB vq= 1096KB sq= 0B f=0/0 For the file after audio has been transcoded. Video was not transcoded (-vcodec=copy) According to ffplay Ok for WindowsMediaplayer or QuickTimePlayer: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 Not Ok for WindowsMediaplayer or QuickTimePlayer: major_brand : mp42 minor_version : 0 compatible_brands: mp42mp41isomiso2 -----Ursprüngliche Nachricht----- Von: gstreamer-devel [mailto:[hidden email]] Im Auftrag von Tim Müller Gesendet: Donnerstag, 15. September 2016 09:56 An: [hidden email] Betreff: Re: AW: MP4 files wit AAC On Thu, 2016-09-15 at 05:29 +0000, Thornton, Keith wrote: Hi Keith, > If I use ffmpeg to transcode them from mp4/h264/aac to mp4/h264/aac > the files are then playable so what I need to know is what is ffmpeg > doing that the avenc_aac is not doing. It would be interesting to see the output of gst-discoverer-1.0 -v and ffplay on a gst/avenc_acc-produced file vs. an ffmpeg-transcoded one then. Maybe it's a codec profile thing or so. Cheers -Tim -- Tim Müller, Centricular Ltd - http://www.centricular.com Join us at the GStreamer Conference! 10-11 October 2016 in Berlin, Germany https://gstreamer.freedesktop.org/conference/ _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
Re: AW: MP4 files wit AAC
|
|
Hi Keith. What if you leave out the video part? Can you then play the file ?Using GStreamer for many years, faac has always just worked while all problems I have encountered (others may have a different experience) with AAC audio has always been tracked back to trying to use avenc_aac, Maybe faac is not as advanced as avenc_aac and maybe there are license issues, but it does what it does well and has made my life easier. Leaving out faac in some distribution has caused many pains over the years and a lot of mails here on the mailing list. The 'avenc_aac' seems to ignore when using the following caps filter avenc_aac ! 'audio/mpeg,base-profile=(string)lc' ! .... On Thu, Sep 15, 2016 at 11:44 AM, Thornton, Keith <[hidden email]> wrote: Hi, _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
«
Return to GStreamer-devel
|
1 view|%1 views
| Free forum by Nabble | Edit this page |