How to make/fix mp4 file can be play on vlc?

[Psychesnet Hsieh]

Hi gotsring,

Thanks for the reply.

Our platform did not support MKV mux module on gstreamer component. So, I
still need to work on mp4mux.

I double check the option of '-e' from tools/gst-launch.c and I add
following code to my testing tool.
1. The duration of mp4 file is over 10 sec, we will send EOS event.
*if (((hdr->fpts.tv_sec - app->first_pts.tv_sec >= 10) &&
(hdr->fpts.tv_usec >= app->first_pts.tv_usec)) ||*


*            hdr->fpts.tv_sec - app->first_pts.tv_sec > 10)) {
ok = FALSE;}*
*.....*
*if (ok == FALSE) {*


*         GST_INFO("send EOS event\n");
gst_element_send_event(app->pipeline, gst_event_new_eos());}*
2. At message part, when we recv EOS, we will do stop loop.



*        case GST_MESSAGE_EOS: {
 g_printerr("recv EOS msg\n");
 g_main_loop_quit (app->loop);                                 break;*
*                              }*
3. Double check the log from testing tool, testing tool did send EOS to
pipeline.








*0:00:09.650924349  1255      0x3611e00 INFO         appsrc-pipeline
ringbuf_appsrc.cpp:77:read_data: send EOS event0:00:09.653614066  1255
 0x36b10a0 INFO                    task
gsttask.c:312:gst_task_func:<ringbuf:src> Task going to
paused0:00:09.653862576  1255      0x36b10a0 INFO                    task
gsttask.c:314:gst_task_func:<ringbuf:src> Task resume from
paused0:00:09.654003645  1255      0x36b10a0 INFO                 basesrc
gstbasesrc.c:2854:gst_base_src_loop:<ringbuf> pausing after
gst_base_src_get_range() = eos0:00:09.654223941  1255      0x36b10a0 INFO
                 task gsttask.c:312:gst_task_func:<ringbuf:src> Task going
to paused0:00:09.654832350  1255      0x3611e00 INFO
appsrc-pipeline ringbuf_appsrc.cpp:108:bus_message: got message eosrecv EOS
msg0:00:10.655268590  1255      0x3611e00 INFO         appsrc-pipeline
ringbuf_appsrc.cpp:215:main: stopping*

Add above code, mp4 file still not working on VLC player.
Please provide advise to fix it. Thanks.


gotsring <gotsring at live.com> 於 2020年7月28日 週二 上午3:07寫道：

> Are you finalizing the MP4 file? This is done by sending an EOS signal
> through the pipeline. For the gst-launch command-line tool, just add -e in
> the options, like
> gst-launch-1.0 -e appsrc name=ringbuf ! mp4mux ! filesink
> location=/tmp/opt/h264.mp4
>
> On a side note, I prefer MKV containers instead of MP4 because they tend to
> be more resistant to errors. If you don't finalize an MKV file, you can
> still play the video, scrubbing or other metadata isn't available. If you
> don't finalize the MP4 file, the file is unplayable. MKV files can still
> play in VLC, so you'd be good there.
>
> Example:
> gst-launch-1.0 -e appsrc name=ringbuf ! matroskamux ! filesink
> location=/tmp/opt/h264.mkv
>
> You might need a parser right before the matroskamux, like h264parse.
>
>
>
> --
> Sent from: http://gstreamer-devel.966125.n4.nabble.com/
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>
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