I am not volunteering to do debug this. I do not even know how well MLT can
handle stream dropouts like you want. That would require setting up one's
own RTMP stream and simulating the dropouts in order to craft a command
line that handles it or do any debugging or code changes to make it work.
With that said, I could not get the stream URL you provided to play with
ffplay. However, this does work for me:
melt rtmp://ucsdtv-wowza.ucsd.edu:1935/live/live_800 -consumer
avformat:output.flv vcodec=libx264 acodec=aac
On Sat, Apr 23, 2016 at 11:28 AM, Frans Gouverne <frans...@gmail.com> wrote:
> Hi Dan,
>
> yes, my rtmp stream plays in ffplay, and yes, I have build with librtmp
> enabled. I can read the stream by using rtmpdump as well (ffmpeg uses
> rtmpdump to read the stream).
>
> I want to use melt for mixing audio with video. I know ffmpeg can do that
> as well, but it is restitctive. That is, if the video or audio stream
> stops, ffmpeg will stop as well. I need a command line utility to mix audio
> and video and maybe a picture, and keep on running when one of the inputs
> is dropped. What I understand from the docs, melt behaves like this,
> although I am not completely sure.
>
> Any idea why melt does not work? When I look at the verbose output, it
> looks more or less the same as what ffmpeg produces standalone.
>
> I do have a 4MB debug file, would that be of any interest?
>
>
> 2016-04-22 20:29 GMT+02:00 Dan Dennedy <d...@dennedy.org>:
>
>> Does your URL play with ffplay? Is your libavformat built with librtmp
>> enabled?
>> Why do you want to use melt for this? Most uses of live stream processing
>> and playout that was formerly unique to melt now be done with ffmpeg such
>> as SDI output and filtering.
>>
>>
>> On Fri, Apr 22, 2016 at 10:41 AM Frans Gouverne <frans...@gmail.com>
>> wrote:
>>
>>> When applying -verbose, it looks like it is parsing only the first rtmp
>>> packet and then quits.
>>>
>>> If rtmp is not supported as input for melt, maybe I can grep the rtmp
>>> stream with ffmpeg and pipe it into melt? But I have no idea how...
>>>
>>>
>>> 2016-04-22 15:51 GMT+02:00 Frans Gouverne <frans...@gmail.com>:
>>>
>>>> by the way, when i use an mp4 file as input, it is working.
>>>> So apprently melt does not handle the RTMP stream as expected.
>>>>
>>>> But using ffmpeg it is working:
>>>> ffmpeg -i "rtmp://video.testabc.nl/live/demo live=1" output.flv
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> 2016-04-22 15:38 GMT+02:00 Frans Gouverne <frans...@gmail.com>:
>>>>
>>>>> Just installed melt. From the command line, I want to grep an RTMP
>>>>> stream and to store it into a file:
>>>>>
>>>>> melt -producer avformat:"rtmp://video.testabc.nl/live/demo live=1"
>>>>> -consumer avformat:output.flv vcodec=libx264 acodec=aac
>>>>>
>>>>> This is the output:
>>>>>
>>>>> +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+
>>>>> +-----+
>>>>> |1=-10| |2= -5| |3= -2| |4= -1| |5= 0| |6= 1| |7= 2| |8= 5| |9= 10|
>>>>> +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+
>>>>> +---------------------------------------------------------------------+
>>>>> | H = back 1 minute, L = forward 1 minute |
>>>>> | h = previous frame, l = next frame |
>>>>> | g = start of clip, j = next clip, k = previous clip |
>>>>> | 0 = restart, q = quit, space = play |
>>>>> +---------------------------------------------------------------------+
>>>>> Current Position: 0
>>>>>
>>>>> But there is almost nothing in output.flv. Simply do not know how to
>>>>> proceed, I am completely new to melt...
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>>
>>>>
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>>
>
>
>
>
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