Switching between live rtmp stream and video playlist is not working #2331

TheRealMattLear · 2020-10-21T05:44:19Z

TheRealMattLear
Oct 21, 2020

I'm hoping to be able to switch between a live rtmp input and a playlist or video file.

Using the below code, the liveInput never seems to be engaged:

	set("init.allow_root",true)
	set("video.converter.preferred", "ffmpeg")
	
	e = %ffmpeg(format="flv", %video(codec="libx264", b="3000k", tune="zerolatency", preset="ultrafast", crf="30"), %audio(codec="aac", b="96k"))
	
	liveInput = input.ffmpeg(buffer=0.5,fallible=true,"rtmp://127.0.0.1:19350/tvtest-1/live")
	output.url(fallible=true,url="rtmp://127.0.0.1:19350/tvtest-1/tvtest-1?password=NS2TyDAYb6Dw", e, fallback([liveInput,single("sample.mp4")]))

Changing the output.url to the below is working OK:

output.url(fallible=true,url="rtmp://127.0.0.1:19350/tvtest-1/tvtest-1?password=NS2TyDAYb6Dw", e, liveInput)

Log:

2020/10/21 02:40:28 >>> LOG START
2020/10/21 02:40:28 [main:3] Liquidsoap 2.0.0+git@59fa8b7
2020/10/21 02:40:28 [main:3] Using: graphics=[distributed with Ocaml] bytes=[distributed with OCaml 4.02 or above] pcre=7.4.6 sedlex=2.2 menhirLib=20200624 dtools=0.4.2 duppy=0.9.0 mm=0.6.0 dynlink=[distributed with Ocaml] ffmpeg-avutil=77571a1 ffmpeg-avcodec=77571a1 ffmpeg-av=77571a1 ffmpeg-avfilter=77571a1 ffmpeg-swresample=77571a1 ffmpeg-swscale=77571a1 camomile=1.0.2
2020/10/21 02:40:28 [main:3]
2020/10/21 02:40:28 [main:3] DISCLAIMER: This version of Liquidsoap has been
2020/10/21 02:40:28 [main:3] compiled from a snapshot of the development code.
2020/10/21 02:40:28 [main:3] As such, it should not be used in production
2020/10/21 02:40:28 [main:3] unless you know what you are doing!
2020/10/21 02:40:28 [main:3]
2020/10/21 02:40:28 [main:3] We are, however, very interested in any feedback
2020/10/21 02:40:28 [main:3] about our development code and committed to fix
2020/10/21 02:40:28 [main:3] issues as soon as possible.
2020/10/21 02:40:28 [main:3]
2020/10/21 02:40:28 [main:3] If you are interested in collaborating to
2020/10/21 02:40:28 [main:3] the development of Liquidsoap, feel free to
2020/10/21 02:40:28 [main:3] drop us a mail at <[email protected]>
2020/10/21 02:40:28 [main:3] or to join the slack chat at <http://slack.liquidsoap.info>.
2020/10/21 02:40:28 [main:3]
2020/10/21 02:40:28 [main:3] Please send any bug report or feature request
2020/10/21 02:40:28 [main:3] at <https://github.com/savonet/liquidsoap/issues>.
2020/10/21 02:40:28 [main:3]
2020/10/21 02:40:28 [main:3] We hope you enjoy this snapshot build of Liquidsoap!
2020/10/21 02:40:28 [main:3]
2020/10/21 02:40:28 [dynamic.loader:3] Could not find dynamic module for lame encoder.
2020/10/21 02:40:28 [dynamic.loader:3] Could not find dynamic module for fdkaac encoder.
2020/10/21 02:40:28 [clock:3] Using builtin (low-precision) implementation for latency control
2020/10/21 02:40:28 [frame:3] Using 44100Hz audio, 25Hz video, 44100Hz master.
2020/10/21 02:40:28 [frame:3] Frame size must be a multiple of 1764 ticks = 1764 audio samples = 1 video samples.
2020/10/21 02:40:28 [frame:3] Targetting 'frame.duration': 0.04s = 1764 audio samples = 1764 ticks.
2020/10/21 02:40:28 [frame:3] Frames last 0.04s = 1764 audio samples = 1 video samples = 1764 ticks.
2020/10/21 02:40:28 [sandbox:3] Sandboxing disabled
2020/10/21 02:40:28 [video.converter:3] Using preferred video converter: ffmpeg.
2020/10/21 02:40:28 [audio.converter:3] Using samplerate converter: ffmpeg.
2020/10/21 02:40:28 [single_17376:3] "sample.mp4" is static, resolving once for all...
2020/10/21 02:40:28 [single_17376:3] Prepared "sample.mp4" (RID 0).
2020/10/21 02:40:28 [clock.main:3] Streaming loop starts in auto-sync mode
2020/10/21 02:40:28 [clock.main:3] Delegating synchronisation to CPU clock
2020/10/21 02:40:28 [switch_17377:3] Switch to single_17376.
^C2020/10/21 02:40:41 [main:3] Shutdown started!
2020/10/21 02:40:41 [main:3] Waiting for main threads to terminate...
2020/10/21 02:40:41 [clock.main:3] Streaming loop stopped.
2020/10/21 02:40:41 [input(dot)ffmpeg:2] Feeding stopped: stop.
2020/10/21 02:40:41 [main:3] Main threads terminated.
2020/10/21 02:40:41 [threads:3] Shutting down scheduler...
2020/10/21 02:40:41 [threads:3] Scheduler shut down.
2020/10/21 02:40:41 [threads:3] Waiting for queue threads to terminate...
2020/10/21 02:40:41 [threads:3] Queues shut down
2020/10/21 02:40:41 [main:3] Cleaning downloaded files...
2020/10/21 02:40:41 [main:3] Freeing memory...

toots · 2020-10-23T14:52:33Z

toots
Oct 23, 2020
Maintainer

The fallback is track_sensitive so it will wait until the end of single.mp4 to try to switch to input.ffmpeg. Have you tried with track_sensitive=false?

0 replies

TheRealMattLear · 2020-11-11T07:23:03Z

TheRealMattLear
Nov 11, 2020
Author

Sorry for the delay, track_sensitive=false works a gem!

0 replies

TheRealMattLear · 2020-11-11T11:57:51Z

TheRealMattLear
Nov 11, 2020
Author

After further testing i can see some problems.

If the liveInput source is active on initial connection and then disconnects, liquidsoap successfully transitions back to video file
Upon re-connection of the live stream source we start seeing the following errors, and the transition does not occur, the Assertion failed continues until disconnecting the live source:

2020/11/11 22:55:59 [clock:3] Using builtin (low-precision) implementation for latency control
2020/11/11 22:55:59 [frame:3] Using 44100Hz audio, 25Hz video, 44100Hz master.
2020/11/11 22:55:59 [frame:3] Frame size must be a multiple of 1764 ticks = 1764 audio samples = 1 video samples.
2020/11/11 22:55:59 [frame:3] Targetting 'frame.duration': 0.04s = 1764 audio samples = 1764 ticks.
2020/11/11 22:55:59 [frame:3] Frames last 0.04s = 1764 audio samples = 1 video samples = 1764 ticks.
2020/11/11 22:55:59 [sandbox:3] Sandboxing disabled
2020/11/11 22:55:59 [video.converter:3] Using preferred video converter: ffmpeg.
2020/11/11 22:55:59 [audio.converter:3] Using samplerate converter: ffmpeg.
2020/11/11 22:55:59 [single_18716:3] "Another_Place_720p.mp4" is static, resolving once for all...
2020/11/11 22:55:59 [single_18716:3] Prepared "Another_Place_720p.mp4" (RID 0).
2020/11/11 22:55:59 [ffmpeg:3] [rtmp @ 0x7f6f200014c0] Unexpected reply on getStreamLength()
2020/11/11 22:55:59 [clock.main:3] Streaming loop starts in auto-sync mode
2020/11/11 22:55:59 [clock.main:3] Delegating synchronisation to CPU clock
2020/11/11 22:55:59 [switch_18717:3] Switch to single_18716.
2020/11/11 22:56:00 [switch_18717:3] Switch to input(dot)ffmpeg with transition.
2020/11/11 22:56:16 [switch_18717:3] Switch to single_18716 with transition.
2020/11/11 22:56:33 [input(dot)ffmpeg:2] Feeding stopped: File "stream/generator.ml", line 82, characters 4-10: Assertion failed.
2020/11/11 22:56:33 [ffmpeg:3] [rtmp @ 0x7f6f205dff00] Unexpected reply on getStreamLength()
2020/11/11 22:56:33 [input(dot)ffmpeg:2] Feeding stopped: File "stream/generator.ml", line 82, characters 4-10: Assertion failed.
2020/11/11 22:56:33 [ffmpeg:3] [rtmp @ 0x7f6f20001240] Unexpected reply on getStreamLength()
2020/11/11 22:56:34 [input(dot)ffmpeg:2] Feeding stopped: File "stream/generator.ml", line 82, characters 4-10: Assertion failed.
2020/11/11 22:56:34 [ffmpeg:3] [rtmp @ 0x7f6efe6f4800] Unexpected reply on getStreamLength()
2020/11/11 22:56:34 [input(dot)ffmpeg:2] Feeding stopped: File "stream/generator.ml", line 82, characters 4-10: Assertion failed.
2020/11/11 22:56:34 [ffmpeg:3] [rtmp @ 0x7f6f205dff00] Unexpected reply on getStreamLength()
2020/11/11 22:56:35 [input(dot)ffmpeg:2] Feeding stopped: File "stream/generator.ml", line 82, characters 4-10: Assertion failed.
2020/11/11 22:56:35 [ffmpeg:3] [rtmp @ 0x7f6f20001240] Unexpected reply on getStreamLength()

Less frequently, upon reconnect i also see this:

2020/11/11 22:58:34 [ffmpeg:3] [flv @ 0x7f6efd171440] DTS discontinuity in stream 0: packet 35 with DTS 1167, packet 36 with DTS 57935
2020/11/11 22:58:34 [ffmpeg:3] [flv @ 0x7f6efd171440] DTS discontinuity in stream 1: packet 54 with DTS 1165, packet 55 with DTS 57935
2020/11/11 22:58:34 [input(dot)ffmpeg:2] Feeding stopped: File "stream/generator.ml", line 82, characters 4-10: Assertion failed.

Updated configuration:

set("init.allow_root",true)
set("video.converter.preferred", "ffmpeg")

e = %ffmpeg(format="flv", %video(codec="libx264", b="3000k", tune="zerolatency", preset="ultrafast", crf="30", profile="main"), %audio(codec="aac", b="96k"))

liveInput = input.ffmpeg(buffer=1.0,fallible=true,"rtmp://127.0.0.1:1935/static/livestream")
output.url(fallible=true,url="rtmp://127.0.0.1:1935/static/tvtest", e, fallback(track_sensitive=false,[liveInput,single("Another_Place_720p.mp4")]))

0 replies

TheRealMattLear · 2021-04-02T04:34:22Z

TheRealMattLear
Apr 2, 2021
Author

Hi,

I would like to touch base to see if there has been any progress with this? I can do some additional testing if any changes in the recent months may have brought improvements to this area

0 replies

toots · 2021-04-02T13:42:02Z

toots
Apr 2, 2021
Maintainer

I'm gonna prioritize getting back into these next week. Thanks for your patience and the remainder.

0 replies

toots · 2021-04-02T21:36:26Z

toots
Apr 2, 2021
Maintainer

Could you try again with the latest main branch? I have added some logging that would be very helpful to trace the error.

0 replies

toots · 2021-09-24T15:34:21Z

toots
Sep 24, 2021
Maintainer

H! Any chance you could try again with the latest v2.0.0? We're getting close to final release and I would love to confirm that this is indeed fixed :-)

0 replies

toots · 2021-10-01T13:46:07Z

toots
Oct 1, 2021
Maintainer

Hi!

I did a test with a ffmpeg rtmp server as input:

ffmpeg -re -i <file> -c copy -f flv -listen 1 rtmp://localhost:1935/live/app

And was able to see the stream switching back and forth successfully so I'm marking this one as fixed. Thanks for reporting!

0 replies

TheRealMattLear · 2021-10-07T03:56:03Z

TheRealMattLear
Oct 7, 2021
Author

Hi @toots sorry for the delay; time escapes us! I plan to be testing this more thouroughly in a few days time and i'll update you regardless as to the results. Thanks for your efforts!

0 replies

TheRealMattLear · 2022-03-31T06:52:09Z

TheRealMattLear
Mar 31, 2022
Author

Hey @toots thanks for your awesome work on this though I cant get this working well with %video.copy and %audio.copy. The transition FROM video file to live is acceptable however the transition back just freezes and breaks playback.

I have also tried using buffer(buffer=30.) however the broadcast still locks up within 2 seconds of disconnecting the live source.

Recorded video of LS output, and video playback at https://share.mediacp.net/v1ugbLpB . File i'm testing with at https://we.tl/t-21mbtbfxuK

settings.init.allow_root.set(true);
settings.video.converter.preferred.set('ffmpeg');

liveInput = input.rtmp(listen=false, "rtmp://127.0.0.1:1935/static/live");
enc = %ffmpeg(format="flv", %video.copy, %audio.copy)
source = fallback([liveInput,single("jellyfish_720p_transcoded.mp4")])
output.url(fallible=true,url="rtmp://127.0.0.1:1935/static/streamkey?password=secret", enc, source)

LS Output

2022/03/31 17:35:12 >>> LOG START
2022/03/31 17:35:11 [main:3] Liquidsoap 2.0.4
2022/03/31 17:35:11 [main:3] Using: bytes=[distributed with OCaml 4.02 or above] pcre=7.4.6 sedlex=2.6 menhirLib=20211128 dtools=0.4.4 duppy=0.9.2 cry=0.6.7 mm=0.8.0 ogg=0.7.1 ogg.decoder=0.7.1 vorbis=0.8.0 vorbis.decoder=0.8.0 mad=0.5.2 flac=0.3.0 flac.ogg=0.3.0 flac.decoder=0.3.0 dynlink=[distributed with Ocaml] lame=0.3.6 fdkaac=0.3.2 theora=0.4.0 theora.decoder=0.4.0 ffmpeg=1.1.2 samplerate=0.1.6 taglib=0.3.9 camomile=1.0.2 faad=0.5.0
2022/03/31 17:35:11 [clock:3] Using builtin (low-precision) implementation for latency control
2022/03/31 17:35:12 [frame:3] Using 44100Hz audio, 25Hz video, 44100Hz main.
2022/03/31 17:35:12 [frame:3] Video frame size set to: 1280x720
2022/03/31 17:35:12 [frame:3] Frame size must be a multiple of 1764 ticks = 1764 audio samples = 1 video samples.
2022/03/31 17:35:12 [frame:3] Targeting 'frame.duration': 0.04s = 1764 audio samples = 1764 ticks.
2022/03/31 17:35:12 [frame:3] Frames last 0.04s = 1764 audio samples = 1 video samples = 1764 ticks.
2022/03/31 17:35:12 [sandbox:3] Sandboxing disabled
2022/03/31 17:35:12 [video.converter:3] Using preferred video converter: ffmpeg.
2022/03/31 17:35:12 [audio.converter:3] Using samplerate converter: ffmpeg.
2022/03/31 17:35:12 [single_0:3] jellyfish_720p_transcoded.mp4 is static, resolving once for all...
2022/03/31 17:35:12 [video.add_text:3] Using ffmpeg implementation
2022/03/31 17:35:12 [clock.main:3] Streaming loop starts in auto-sync mode
2022/03/31 17:35:12 [clock.main:3] Delegating synchronisation to CPU clock
2022/03/31 17:35:12 [single_0:3] Prepared "jellyfish_720p_transcoded.mp4" (RID 0).
2022/03/31 17:35:12 [switch_0:3] Switch to single_0.
2022/03/31 17:35:33 [decoder:2] Decoding "jellyfish_720p_transcoded.mp4" ended: Ffmpeg_decoder.End_of_file.
2022/03/31 17:35:33 [switch_0:3] Switch to input.ffmpeg_0 with forgetful transition.
Setting interrupt to true
2022/03/31 17:35:53 [input.ffmpeg_0:2] Feeding failed: Avutil.Error(Input/output error)
2022/03/31 17:35:53 [single_0:3] Prepared "jellyfish_720p_transcoded.mp4" (RID 0).
2022/03/31 17:35:53 [switch_0:3] Switch to single_0 with forgetful transition.
2022/03/31 17:35:53 [clock.main:2] We must catchup 13.65 seconds!
2022/03/31 17:36:00 [decoder:2] Decoding "jellyfish_720p_transcoded.mp4" ended: Ffmpeg_decoder.End_of_file.
2022/03/31 17:36:01 [single_0:3] Prepared "jellyfish_720p_transcoded.mp4" (RID 0).

0 replies

toots · 2022-04-01T10:04:43Z

toots
Apr 1, 2022
Maintainer

Hi!

Thanks for your patience as well. I just tested again and was still unable to reproduce.

Could you send your logs with a higher log level? Just add:

log.level.set(4)

to your script..

0 replies

TheRealMattLear · 2022-04-01T11:15:32Z

TheRealMattLear
Apr 1, 2022
Author

Hello! Running through nginx-rtmp server with defaults just FYI. I stopped the live input stream at exactly 22:11:12 in this instance.

2022/04/01 22:10:41 >>> LOG START
2022/04/01 22:10:40 [main:3] Liquidsoap 2.0.4
2022/04/01 22:10:40 [main:3] Using: bytes=[distributed with OCaml 4.02 or above] pcre=7.4.6 sedlex=2.6 menhirLib=20211128 dtools=0.4.4 duppy=0.9.2 cry=0.6.7 mm=0.8.0 ogg=0.7.1 ogg.decoder=0.7.1 vorbis=0.8.0 vorbis.decoder=0.8.0 mad=0.5.2 flac=0.3.0 flac.ogg=0.3.0 flac.decoder=0.3.0 dynlink=[distributed with Ocaml] lame=0.3.6 fdkaac=0.3.2 theora=0.4.0 theora.decoder=0.4.0 ffmpeg=1.1.2 samplerate=0.1.6 taglib=0.3.9 camomile=1.0.2 faad=0.5.0
2022/04/01 22:10:40 [clock:3] Using builtin (low-precision) implementation for latency control
2022/04/01 22:10:41 [frame:4] frame.audio.samplerate set to: 44100
2022/04/01 22:10:41 [frame:4] frame.video.framerate set to: 25
2022/04/01 22:10:41 [frame:4] frame.audio.channels set to: 2
2022/04/01 22:10:41 [frame:4] frame.video.default set to: false
2022/04/01 22:10:41 [frame:4] frame.midi.channels set to: 0
2022/04/01 22:10:41 [frame:4] frame.video.width set to: 1280
2022/04/01 22:10:41 [frame:4] frame.video.height set to: 720
2022/04/01 22:10:41 [frame:4] frame.audio.samplerate set to: 44100
2022/04/01 22:10:41 [frame:3] Using 44100Hz audio, 25Hz video, 44100Hz main.
2022/04/01 22:10:41 [frame:3] Video frame size set to: 1280x720
2022/04/01 22:10:41 [frame:3] Frame size must be a multiple of 1764 ticks = 1764 audio samples = 1 video samples.
2022/04/01 22:10:41 [frame:3] Targeting 'frame.duration': 0.04s = 1764 audio samples = 1764 ticks.
2022/04/01 22:10:41 [frame:3] Frames last 0.04s = 1764 audio samples = 1 video samples = 1764 ticks.
2022/04/01 22:10:41 [sandbox:3] Sandboxing disabled
2022/04/01 22:10:41 [video.converter:3] Using preferred video converter: ffmpeg.
2022/04/01 22:10:41 [audio.converter:3] Using samplerate converter: ffmpeg.
2022/04/01 22:10:41 [clock:4] Currently 1 clock(s) allocated.
2022/04/01 22:10:41 [clock.main:4] Starting 2 source(s)...
2022/04/01 22:10:41 [source:4] Source input.ffmpeg_0 gets up with content kind: {audio=ffmpeg.audio.copy,video=ffmpeg.video.copy,midi=none}.
2022/04/01 22:10:41 [source:4] Source output.file_0 gets up with content kind: {audio=ffmpeg.audio.copy,video=ffmpeg.video.copy,midi=none}.
2022/04/01 22:10:41 [output.url:4] Content type is {audio=ffmpeg.audio.copy,video=ffmpeg.video.copy,midi=none}.
2022/04/01 22:10:41 [source:4] Source switch_0 gets up with content kind: {audio=ffmpeg.audio.copy,video=ffmpeg.video.copy,midi=none}.
2022/04/01 22:10:41 [source:4] Source single_0 gets up with content kind: {audio=ffmpeg.audio.copy,video=ffmpeg.video.copy,midi=none}.
2022/04/01 22:10:41 [single_0:3] jellyfish_720p_transcoded.mp4 is static, resolving once for all...
2022/04/01 22:10:41 [decoder.ogg:4] Unsupported file extension for "jellyfish_720p_transcoded.mp4"!
2022/04/01 22:10:41 [decoder:4] Available decoders: FFMPEG (priority: 10)
2022/04/01 22:10:41 [decoder.ffmpeg:4] ffmpeg recognizes jellyfish_720p_transcoded.mp4 as: audio: {codec: aac, 48000Hz, 2 channel(s)}, video: {codec: h264, 1280x720, yuv420p} and content-type: {audio=ffmpeg.audio.copy(sample_rate=48000,sample_format=fltp,channel_layout="stereo",codec="aac"),video=ffmpeg.video.copy(pixel_format=yuv420p,aspect_ratio=1/1,height=720,width=1280,codec="h264"),midi=none}.
2022/04/01 22:10:41 [decoder:4] Selected decoder FFMPEG for file "jellyfish_720p_transcoded.mp4" with expected kind {audio=ffmpeg.audio.copy(sample_rate=48000,sample_format=fltp,channel_layout="stereo",codec="aac"),video=ffmpeg.video.copy(pixel_format=yuv420p,aspect_ratio=1/1,height=720,width=1280,codec="h264"),midi=none} and detected content {audio=ffmpeg.audio.copy(sample_rate=48000,sample_format=fltp,channel_layout="stereo",codec="aac"),video=ffmpeg.video.copy(pixel_format=yuv420p,aspect_ratio=1/1,height=720,width=1280,codec="h264"),midi=none}
2022/04/01 22:10:41 [metadata.flac:4] Unsupported file extension for "jellyfish_720p_transcoded.mp4"!
2022/04/01 22:10:41 [decoder.ogg:4] Unsupported file extension for "jellyfish_720p_transcoded.mp4"!
2022/04/01 22:10:41 [decoder.taglib:4] Unsupported file extension for "jellyfish_720p_transcoded.mp4"!
2022/04/01 22:10:41 [decoder.id3v2:4] Unsupported file extension for "jellyfish_720p_transcoded.mp4"!
2022/04/01 22:10:41 [single_0:4] Content type is {audio=ffmpeg.audio.copy(sample_rate=48000,sample_format=fltp,channel_layout="stereo",codec="aac"),video=ffmpeg.video.copy(pixel_format=yuv420p,aspect_ratio=1/1,height=720,width=1280,codec="h264"),midi=none}.
2022/04/01 22:10:41 [threads:4] Created thread "clock_main" (1 total).
2022/04/01 22:10:41 [clock:4] Main phase starts.
2022/04/01 22:10:41 [threads:4] Created thread "generic queue #1" (1 total).
2022/04/01 22:10:41 [threads:4] Created thread "generic queue #2" (2 total).
2022/04/01 22:10:41 [threads:4] Created thread "non-blocking queue #1" (3 total).
2022/04/01 22:10:41 [threads:4] Created thread "non-blocking queue #2" (4 total).
2022/04/01 22:10:41 [video.add_text:3] Using ffmpeg implementation
2022/04/01 22:10:41 [clock.main:3] Streaming loop starts in auto-sync mode
2022/04/01 22:10:41 [clock.main:3] Delegating synchronisation to CPU clock
2022/04/01 22:10:41 [single_0:3] Prepared "jellyfish_720p_transcoded.mp4" (RID 0).
2022/04/01 22:10:41 [switch_0:3] Switch to single_0.
2022/04/01 22:10:49 [decoder.ffmpeg:4] ffmpeg recognizes rtmp://127.0.0.1:1935/static/live as: audio: {codec: aac, 48000Hz, 2 channel(s)}, video: {codec: h264, 1280x720, yuv420p} and content-type: {audio=ffmpeg.audio.copy(sample_rate=48000,sample_format=fltp,channel_layout="stereo",codec="aac"),video=ffmpeg.video.copy(pixel_format=yuv420p,aspect_ratio=1/1,height=720,width=1280,codec="h264"),midi=none}.
2022/04/01 22:11:02 [decoder:4] Decoding "jellyfish_720p_transcoded.mp4" ended: Ffmpeg_decoder.End_of_file.
2022/04/01 22:11:02 [decoder:4] Raised at Ffmpeg_decoder.mk_decoder.(fun).f in file "decoder/ffmpeg_decoder.ml", line 691, characters 12-29
2022/04/01 22:11:02 [decoder:4] Called from Decoder.mk_decoder.fill in file "decoder/decoder.ml", line 500, characters 10-31
2022/04/01 22:11:02 [decoder:4]
2022/04/01 22:11:03 [single_0:4] Finished with "jellyfish_720p_transcoded.mp4".
2022/04/01 22:11:03 [switch_0:3] Switch to input.ffmpeg_0 with forgetful transition.
2022/04/01 22:11:03 [source:4] Source replay_metadata_0 gets up with content kind: {audio=ffmpeg.audio.copy(sample_rate=48000,sample_format=fltp,channel_layout="stereo",codec="aac"),video=ffmpeg.video.copy(pixel_format=yuv420p,aspect_ratio=1/1,height=720,width=1280,codec="h264"),midi=none}.
2022/04/01 22:11:03 [replay_metadata_0:4] Content type is {audio=ffmpeg.audio.copy(sample_rate=48000,sample_format=fltp,channel_layout="stereo",codec="aac"),video=ffmpeg.video.copy(pixel_format=yuv420p,aspect_ratio=1/1,height=720,width=1280,codec="h264"),midi=none}.
Setting interrupt to true
2022/04/01 22:11:28 [input.ffmpeg_0:4] Feeding failed: Avutil.Error(Input/output error)
2022/04/01 22:11:28 [input.ffmpeg_0:4] Raised by primitive operation at Av.read_input in file "av/av.ml", line 216, characters 2-31
2022/04/01 22:11:28 [input.ffmpeg_0:4] Called from Ffmpeg_decoder.mk_decoder.(fun).f in file "decoder/ffmpeg_decoder.ml", line 662, characters 10-99
2022/04/01 22:11:28 [input.ffmpeg_0:4] Called from Ffmpeg_io.input#get_frame in file "io/ffmpeg_io.ml", line 185, characters 10-24
2022/04/01 22:11:28 [input.ffmpeg_0:4]
2022/04/01 22:11:28 [single_0:3] Prepared "jellyfish_720p_transcoded.mp4" (RID 0).
2022/04/01 22:11:28 [switch_0:3] Switch to single_0 with forgetful transition.
2022/04/01 22:11:28 [source:4] Source replay_metadata_0 gets down.
2022/04/01 22:11:28 [source:4] Source replay_metadata_1 gets up with content kind: {audio=ffmpeg.audio.copy(sample_rate=48000,sample_format=fltp,channel_layout="stereo",codec="aac"),video=ffmpeg.video.copy(pixel_format=yuv420p,aspect_ratio=1/1,height=720,width=1280,codec="h264"),midi=none}.
2022/04/01 22:11:28 [replay_metadata_1:4] Content type is {audio=ffmpeg.audio.copy(sample_rate=48000,sample_format=fltp,channel_layout="stereo",codec="aac"),video=ffmpeg.video.copy(pixel_format=yuv420p,aspect_ratio=1/1,height=720,width=1280,codec="h264"),midi=none}.
2022/04/01 22:11:28 [clock.main:2] We must catchup 13.64 seconds!
2022/04/01 22:11:35 [decoder:4] Decoding "jellyfish_720p_transcoded.mp4" ended: Ffmpeg_decoder.End_of_file.
2022/04/01 22:11:35 [decoder:4] Raised at Ffmpeg_decoder.mk_decoder.(fun).f in file "decoder/ffmpeg_decoder.ml", line 691, characters 12-29
2022/04/01 22:11:35 [decoder:4] Called from Decoder.mk_decoder.fill in file "decoder/decoder.ml", line 500, characters 10-31
2022/04/01 22:11:35 [decoder:4]
2022/04/01 22:11:36 [single_0:4] Finished with "jellyfish_720p_transcoded.mp4".
2022/04/01 22:11:36 [single_0:3] Prepared "jellyfish_720p_transcoded.mp4" (RID 0).
2022/04/01 22:11:43 [input.ffmpeg_0:4] Connection failed: Avutil.Error(Input/output error)
2022/04/01 22:11:56 [decoder:4] Decoding "jellyfish_720p_transcoded.mp4" ended: Ffmpeg_decoder.End_of_file.
2022/04/01 22:11:56 [decoder:4] Raised at Ffmpeg_decoder.mk_decoder.(fun).f in file "decoder/ffmpeg_decoder.ml", line 691, characters 12-29
2022/04/01 22:11:56 [decoder:4] Called from Decoder.mk_decoder.fill in file "decoder/decoder.ml", line 500, characters 10-31
2022/04/01 22:11:56 [decoder:4]
2022/04/01 22:11:57 [single_0:4] Finished with "jellyfish_720p_transcoded.mp4".
2022/04/01 22:11:57 [single_0:3] Prepared "jellyfish_720p_transcoded.mp4" (RID 0).
^C2022/04/01 22:11:59 [main:3] Shutdown started!
2022/04/01 22:11:59 [main:3] Waiting for main threads to terminate...
2022/04/01 22:11:59 [threads:4] Waiting for thread clock_main to shutdown
2022/04/01 22:11:59 [source:4] Source output.url gets down.
2022/04/01 22:11:59 [source:4] Source switch_0 gets down.
2022/04/01 22:11:59 [source:4] Source input.ffmpeg_0 gets down.
2022/04/01 22:11:59 [source:4] Source replay_metadata_1 gets down.
2022/04/01 22:11:59 [source:4] Source single_0 gets down.
2022/04/01 22:11:59 [single_0:4] Finished with "jellyfish_720p_transcoded.mp4".
2022/04/01 22:11:59 [clock.main:3] Streaming loop stopped.
2022/04/01 22:11:59 [threads:4] Thread "clock_main" terminated (0 remaining).
2022/04/01 22:11:59 [main:3] Main threads terminated.
2022/04/01 22:11:59 [threads:3] Shutting down scheduler...
2022/04/01 22:11:59 [threads:4] Thread "non-blocking queue #1" terminated (3 remaining).
2022/04/01 22:11:59 [threads:4] Thread "non-blocking queue #2" terminated (2 remaining).
2022/04/01 22:11:59 [threads:4] Thread "generic queue #1" terminated (1 remaining).
2022/04/01 22:11:59 [input.ffmpeg_0:4] Connection failed: Avutil.Error(Input/output error)
2022/04/01 22:11:59 [threads:4] Thread "generic queue #2" terminated (0 remaining).
2022/04/01 22:11:59 [threads:3] Scheduler shut down.
2022/04/01 22:11:59 [main:3] Cleaning downloaded files...
2022/04/01 22:11:59 [main:3] Freeing memory...

0 replies

TheRealMattLear · 2022-04-06T10:49:35Z

TheRealMattLear
Apr 6, 2022
Author

Let me know if there is anything else i can do to help with this, any additional logging i can provide or access to a test environment even.

0 replies

toots · 2022-04-06T15:55:28Z

toots
Apr 6, 2022
Maintainer

I'm gonna look at it this week. I want to address this with 2.0.4.

0 replies

TheRealMattLear · 2022-04-11T08:00:09Z

TheRealMattLear
Apr 11, 2022
Author

Hey @toots i've been doing some more testing and set settings.ffmpeg.log.verbosity.set("debug")

I can see that when OBS connects to the RTMP stream, ffmpeg immediately reacts but upon disconnection the rtmp output stalls but there is no output from ffmpeg for almost 15 seconds.

I've run another ffmpeg instance parallel to just read the stream that liquidsoap was delivering:

ffmpeg -i  rtmp://192.168.1.252/static/streamkey -f flv output.flv

I can see that on connection to /live the following errors repeated for ~3 seconds before its corrected:

[h264 @ 0x6c89440] number of reference frames (0+3) exceeds max (2; probably corrupt input), discarding one
[h264 @ 0x6c89440] cabac_init_idc 32 overflow
[h264 @ 0x6c89440] decode_slice_header error
[h264 @ 0x6c89440] chroma_log2_weight_denom 17 is out of range
[h264 @ 0x6c89440] error while decoding MB 31 6, bytestream -19
[h264 @ 0x6c89440] chroma_log2_weight_denom 11 is out of range
[h264 @ 0x6c89440] deblocking filter parameters 0 -10 out of range
[h264 @ 0x6c89440] decode_slice_header error
[h264 @ 0x6c89440] chroma_log2_weight_denom 23 is out of range
[h264 @ 0x6c89440] cabac_init_idc 12 overflow
[h264 @ 0x6c89440] decode_slice_header error
[h264 @ 0x6c89440] chroma_log2_weight_denom 19 is out of range
[h264 @ 0x6c89440] error while decoding MB 20 23, bytestream -25
[h264 @ 0x6c89440] chroma_log2_weight_denom 19 is out of range
[h264 @ 0x6c89440] top block unavailable for requested intra mode -1
[h264 @ 0x6c89440] error while decoding MB 20 28, bytestream 39
[h264 @ 0x6c89440] deblocking_filter_idc 15 out of range
[h264 @ 0x6c89440] decode_slice_header error
[h264 @ 0x6c89440] chroma_log2_weight_denom 19 is out of range
[h264 @ 0x6c89440] error while decoding MB 15 39, bytestream -5
[h264 @ 0x6c89440] concealing 3600 DC, 3600 AC, 3600 MV errors in P frame

On disconnection of OBS/encoder, ffmpeg freezes within 1 second of disconnection and after about 5 seconds continuously spits out errors until i quit ffmpeg: https://pastebin.com/EWEYKBEA

Hopefully this information is useful to you!

0 replies

toots · 2022-04-11T14:05:23Z

toots
Apr 11, 2022
Maintainer

I was able to reproduce. It seems like nginx-rtmp has some pretty surprising default options where idling publishers are kept active and connected clients as well. Even worst, connecting a new ffmpeg CLI client to a stream that is disconnected also resulted in ffmpeg getting stuck.

I was able to make it work as expected by adding the following directive:

  idle_streams off;

For good measure, I also suggest to add:

  wait_key on;
  wait_video on;

This should help making sure that ffmpeg auto-detects the correct content type.

0 replies

TheRealMattLear · 2022-04-12T03:57:22Z

TheRealMattLear
Apr 12, 2022
Author

I'm still struggling here. As soon as i stop the live broadcast from OBS the audio/video becomes out of sync. Audio plays but video content is broken (see gif below). The stream never recovers.

nginx -V
nginx version: nginx/1.20.2
built by gcc 10.2.1 20210110 (Debian 10.2.1-6)
built with OpenSSL 1.1.1n  15 Mar 2022
TLS SNI support enabled
configure arguments: --prefix=/usr/local/mediacp/nginx-rtmp --with-http_ssl_module --add-module=./nginx-rtmp-module-master

nginx.conf

worker_processes  1;
error_log logs/error.log error;
events {
    worker_connections  4096;
}
rtmp {
    server {
        listen 1935;
        chunk_size 4000;

		application static {
			live on;
			idle_streams off;
			wait_key on;
			wait_video on;
			sync 10ms; # Tested with and without sync, makes no difference
		}
	}
}

liquidsoap.conf

settings.video.converter.preferred.set('ffmpeg');
liveInput = input.rtmp(listen=false, "rtmp://127.0.0.1:1935/static/live")
enc = %ffmpeg(format="flv", %video.copy, %audio.copy)
source = fallback([liveInput,single("jellyfish_720p_transcoded.mp4")])
output.url(fallible=true,url="rtmp://127.0.0.1:1935/static/streamkey?password=secret", enc, source)

9 replies

toots Apr 19, 2022
Maintainer

Yeah I understand the need for this. Let me think and see what I can do. We definitely want to support this use case.

toots Apr 21, 2022
Maintainer

@TheRealMattLear I've got something! Any chance you could try from the ffmpeg-copy-insert-keyframe branch? See this PR: #2343. I need to do more testing but this should fix your issue.

TheRealMattLear Apr 21, 2022
Author

Awesome work here @toots this is a real game changer for us. not sure if i should reply here or on the PR but I'm seeing much the same behaviour with all 3 options.

Transition from single() to input.rtmp() displays well through VLC however HLS output from nginx-rtmp using VideoJS appears corrupted. Transition back from input.rtmp() to single() is corrupted on both.

Installed versions

$ opam pin list
ffmpeg.1.1.4               git  git+file:///usr/local/mediacp/ffmpeg/source#main
ffmpeg-av.1.1.4            git  git+file:///usr/local/mediacp/ffmpeg/source#main
ffmpeg-avcodec.1.1.4       git  git+file:///usr/local/mediacp/ffmpeg/source#main
ffmpeg-avdevice.1.1.4      git  git+file:///usr/local/mediacp/ffmpeg/source#main
ffmpeg-avfilter.1.1.4      git  git+file:///usr/local/mediacp/ffmpeg/source#main
ffmpeg-avutil.1.1.4        git  git+file:///usr/local/mediacp/ffmpeg/source#main
ffmpeg-swresample.1.1.4    git  git+file:///usr/local/mediacp/ffmpeg/source#main
ffmpeg-swscale.1.1.4       git  git+file:///usr/local/mediacp/ffmpeg/source#main
liquidsoap.2.0.4           git  git+file:///usr/local/mediacp/liquidsoap/source#ffmpeg-copy-insert-keyframe

Output after live input connects

[live_flv @ 0x7f9a34008540] Opening 'rtmp://127.0.0.1:1935/static/live' for reading
[rtmp @ 0x7f9a340d28c0] No default whitelist set
[tcp @ 0x7f9a34442c40] No default whitelist set
[tcp @ 0x7f9a34442c40] Original list of addresses:
[tcp @ 0x7f9a34442c40] Address 127.0.0.1 port 1935
[tcp @ 0x7f9a34442c40] Interleaved list of addresses:
[tcp @ 0x7f9a34442c40] Address 127.0.0.1 port 1935
[tcp @ 0x7f9a34442c40] Starting connection attempt to 127.0.0.1 port 1935
[tcp @ 0x7f9a34442c40] Successfully connected to 127.0.0.1 port 1935
[rtmp @ 0x7f9a340d28c0] Handshaking...
[rtmp @ 0x7f9a340d28c0] Type answer 3
[rtmp @ 0x7f9a340d28c0] Server version 13.14.10.13
[rtmp @ 0x7f9a340d28c0] Proto = rtmp, path = /static/live, app = static, fname = live
[rtmp @ 0x7f9a340d28c0] Window acknowledgement size = 5000000
[rtmp @ 0x7f9a340d28c0] Max sent, unacked = 5000000
[rtmp @ 0x7f9a340d28c0] New incoming chunk size = 2048
[rtmp @ 0x7f9a340d28c0] Creating stream...
[rtmp @ 0x7f9a340d28c0] Sending play command for 'live'
[live_flv @ 0x7f9a34008540] Before avformat_find_stream_info() pos: 13 bytes read:454 seeks:0 nb_streams:0
[live_flv @ 0x7f9a34008540] Unknown type |RtmpSampleAccess
[NULL @ 0x7f9a340a6240] nal_unit_type: 7(SPS), nal_ref_idc: 3
[NULL @ 0x7f9a340a6240] nal_unit_type: 8(PPS), nal_ref_idc: 3
[h264 @ 0x7f9a340a6240] nal_unit_type: 7(SPS), nal_ref_idc: 3
[h264 @ 0x7f9a340a6240] nal_unit_type: 8(PPS), nal_ref_idc: 3
[h264 @ 0x7f9a340a6240] nal_unit_type: 7(SPS), nal_ref_idc: 3
[h264 @ 0x7f9a340a6240] nal_unit_type: 8(PPS), nal_ref_idc: 3
[h264 @ 0x7f9a340a6240] nal_unit_type: 5(IDR), nal_ref_idc: 3
[h264 @ 0x7f9a340a6240] Format yuv420p chosen by get_format().
[h264 @ 0x7f9a340a6240] Reinit context to 1280x720, pix_fmt: yuv420p
[h264 @ 0x7f9a340a6240] no picture
[live_flv @ 0x7f9a34008540] All info found
[live_flv @ 0x7f9a34008540] rfps: 29.666667 0.016552
[live_flv @ 0x7f9a34008540] rfps: 29.750000 0.009347
[live_flv @ 0x7f9a34008540] rfps: 29.833333 0.004197
[live_flv @ 0x7f9a34008540] rfps: 29.833333 0.004197
[live_flv @ 0x7f9a34008540] rfps: 29.916667 0.001104
[live_flv @ 0x7f9a34008540] rfps: 29.916667 0.001104
[live_flv @ 0x7f9a34008540] rfps: 30.000000 0.000067
[live_flv @ 0x7f9a34008540] rfps: 30.000000 0.000067
[live_flv @ 0x7f9a34008540] rfps: 60.000000 0.000270
[live_flv @ 0x7f9a34008540] rfps: 60.000000 0.000270
[live_flv @ 0x7f9a34008540] rfps: 120.000000 0.001079
[live_flv @ 0x7f9a34008540] rfps: 120.000000 0.001079
[live_flv @ 0x7f9a34008540] rfps: 240.000000 0.004316
[live_flv @ 0x7f9a34008540] rfps: 240.000000 0.004316
[live_flv @ 0x7f9a34008540] rfps: 29.970030 0.000204
[live_flv @ 0x7f9a34008540] rfps: 29.970030 0.000204
[live_flv @ 0x7f9a34008540] rfps: 59.940060 0.000814
[live_flv @ 0x7f9a34008540] rfps: 59.940060 0.000814
[live_flv @ 0x7f9a34008540] After avformat_find_stream_info() pos: 568534 bytes read:568534 seeks:0 frames:120
2022/04/21 18:03:44 [decoder.ffmpeg:4] ffmpeg recognizes rtmp://127.0.0.1:1935/static/live as: audio: {codec: aac, 48000Hz, 2 channel(s)}, video: {codec: h264, 1280x720, yuv420p} and content-type: {audio=ffmpeg.audio.copy(sample_rate=48000,sample_format=fltp,channel_layout="stereo",codec="aac"),video=ffmpeg.video.copy(pixel_format=yuv420p,aspect_ratio=1/1,height=720,width=1280,codec="h264"),midi=none}.

Output from the point of input.rtmp disconnection with a few repetitive lines ommited.

[rtmp @ 0x7fc7c0426680] Server error: No such stream
2022/04/21 17:54:42 [input.ffmpeg_0:4] Connection failed: Avutil.Error(Operation not permitted)
2022/04/21 17:54:44 [decoder:4] Decoding "output.mp4" ended: Ffmpeg_decoder.End_of_file.
2022/04/21 17:54:44 [decoder:4] Raised at Ffmpeg_decoder.mk_decoder.(fun).f in file "decoder/ffmpeg_decoder.ml", line 691, characters 12-29
2022/04/21 17:54:44 [decoder:4] Called from Decoder.mk_decoder.fill in file "decoder/decoder.ml", line 500, characters 10-31
2022/04/21 17:54:44 [decoder:4]
[live_flv @ 0x7fc7c0008540] Opening 'rtmp://127.0.0.1:1935/static/live' for reading
[rtmp @ 0x7fc7c04607c0] No default whitelist set
[tcp @ 0x7fc7c0023d80] No default whitelist set
[tcp @ 0x7fc7c0023d80] Original list of addresses:
[tcp @ 0x7fc7c0023d80] Address 127.0.0.1 port 1935
[tcp @ 0x7fc7c0023d80] Interleaved list of addresses:
[tcp @ 0x7fc7c0023d80] Address 127.0.0.1 port 1935
[tcp @ 0x7fc7c0023d80] Starting connection attempt to 127.0.0.1 port 1935
[tcp @ 0x7fc7c0023d80] Successfully connected to 127.0.0.1 port 1935
[rtmp @ 0x7fc7c04607c0] Handshaking...
[rtmp @ 0x7fc7c04607c0] Type answer 3
[rtmp @ 0x7fc7c04607c0] Server version 13.14.10.13
[rtmp @ 0x7fc7c04607c0] Proto = rtmp, path = /static/live, app = static, fname = live
[rtmp @ 0x7fc7c04607c0] Window acknowledgement size = 5000000
[rtmp @ 0x7fc7c04607c0] Max sent, unacked = 5000000
[rtmp @ 0x7fc7c04607c0] New incoming chunk size = 2048
[rtmp @ 0x7fc7c04607c0] Creating stream...
[rtmp @ 0x7fc7c04607c0] Sending play command for 'live'
[rtmp @ 0x7fc7c04607c0] Server error: No such stream
2022/04/21 17:54:44 [input.ffmpeg_0:4] Connection failed: Avutil.Error(Operation not permitted)
2022/04/21 17:54:45 [output.mp4:4] Finished with "output.mp4".
[AVIOContext @ 0x7fc7c43df180] Statistics: 5496594 bytes read, 0 seeks
[NULL @ 0x7fc7c400be00] Opening 'output.mp4' for reading
[file @ 0x7fc7c4022fc0] Setting default whitelist 'file,crypto,data'
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] ISO: File Type Major Brand: isom
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] Unknown dref type 0x206c7275 size 12
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] Processing st: 0, edit list 0 - media time: 1024, duration: 327168
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] stts: 0 ctts: 1024, ctts_index: 0, ctts_count: 639
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] stts: 512 ctts: 1536, ctts_index: 1, ctts_count: 639

...[repeat of last lines ommitted]...

[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] stts: 326656 ctts: 512, ctts_index: 638, ctts_count: 639
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] Offset DTS by 1024 to make first pts zero.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] Setting codecpar->delay to 2 for stream st: 0
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] Unknown dref type 0x206c7275 size 12
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] Processing st: 1, edit list 0 - media time: 1024, duration: 1024992
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] drop a frame at curr_cts: 0 @ 0
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] Before avformat_find_stream_info() pos: 24468 bytes read:32768 seeks:0 nb_streams:2
[h264 @ 0x7fc7c43da4c0] nal_unit_type: 7(SPS), nal_ref_idc: 3
[h264 @ 0x7fc7c43da4c0] nal_unit_type: 8(PPS), nal_ref_idc: 3
[h264 @ 0x7fc7c43da4c0] nal_unit_type: 6(SEI), nal_ref_idc: 0
[h264 @ 0x7fc7c43da4c0] nal_unit_type: 5(IDR), nal_ref_idc: 3
[h264 @ 0x7fc7c43da4c0] Format yuv420p chosen by get_format().
[h264 @ 0x7fc7c43da4c0] Reinit context to 1280x720, pix_fmt: yuv420p
[h264 @ 0x7fc7c43da4c0] no picture
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] demuxer injecting skip 1024 / discard 0
[aac @ 0x7fc7c400b100] skip 1024 / discard 0 samples due to side data
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] All info found
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] After avformat_find_stream_info() pos: 91564 bytes read:122802 seeks:0 frames:3
[AVIOContext @ 0x7fc7c4af0540] Statistics: 122802 bytes read, 0 seeks
[NULL @ 0x7fc7c400be00] Opening 'output.mp4' for reading
[file @ 0x7fc7c4466040] Setting default whitelist 'file,crypto,data'
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] ISO: File Type Major Brand: isom
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] Unknown dref type 0x206c7275 size 12
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] Processing st: 0, edit list 0 - media time: 1024, duration: 327168
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] stts: 0 ctts: 1024, ctts_index: 0, ctts_count: 639
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] stts: 512 ctts: 1536, ctts_index: 1, ctts_count: 639

...[repeat of last lines ommitted]...

[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] stts: 326656 ctts: 512, ctts_index: 638, ctts_count: 639
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] Offset DTS by 1024 to make first pts zero.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] Setting codecpar->delay to 2 for stream st: 0
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] Unknown dref type 0x206c7275 size 12
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] Processing st: 1, edit list 0 - media time: 1024, duration: 1024992
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] drop a frame at curr_cts: 0 @ 0
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] Before avformat_find_stream_info() pos: 24468 bytes read:32768 seeks:0 nb_streams:2
[h264 @ 0x7fc7c40fce80] nal_unit_type: 7(SPS), nal_ref_idc: 3
[h264 @ 0x7fc7c40fce80] nal_unit_type: 8(PPS), nal_ref_idc: 3
[h264 @ 0x7fc7c40fce80] nal_unit_type: 6(SEI), nal_ref_idc: 0
[h264 @ 0x7fc7c40fce80] nal_unit_type: 5(IDR), nal_ref_idc: 3
[h264 @ 0x7fc7c40fce80] Format yuv420p chosen by get_format().
[h264 @ 0x7fc7c40fce80] Reinit context to 1280x720, pix_fmt: yuv420p
[h264 @ 0x7fc7c40fce80] no picture
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] demuxer injecting skip 1024 / discard 0
[aac @ 0x7fc7c4009300] skip 1024 / discard 0 samples due to side data
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] All info found
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc7c400be00] After avformat_find_stream_info() pos: 91564 bytes read:122802 seeks:0 frames:3
2022/04/21 17:54:45 [output.mp4:3] Prepared "output.mp4" (RID 0).
[h264 @ 0x7fc7c411af80] nal_unit_type: 7(SPS), nal_ref_idc: 3
[h264 @ 0x7fc7c411af80] nal_unit_type: 8(PPS), nal_ref_idc: 3
[live_flv @ 0x7fc7c0008540] Opening 'rtmp://127.0.0.1:1935/static/live' for reading

toots Apr 21, 2022
Maintainer

I can reproduce and confirm the issue here. Working on it.

TheRealMattLear Apr 22, 2022
Author

@toots i realise you may be still working on changes, i've just updated and done a quick test but seeing an error with single() input and simple output.file()

output.file(%ffmpeg(format="flv",%audio.copy,%video.copy), "/tmp/out.flv", single("jellyfish_720p_transcoded.mp4"))

Full output at https://pastebin.com/qJK3MEcf - snippet below

[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f4d74008140] demuxer injecting skip 1024 / discard 0
[aac @ 0x7f4d74077980] skip 1024 / discard 0 samples due to side data
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f4d74008140] All info found
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f4d74008140] After avformat_find_stream_info() pos: 75988 bytes read:108733 seeks:0 frames:2
2022/04/22 10:11:11 [single_0:3] Prepared "jellyfish_720p_transcoded.mp4" (RID 0).
[file @ 0x7f4d74021400] Setting default whitelist 'file,crypto,data'
2022/04/22 10:11:11 [threads:4] Created thread "clock_main" (1 total).
2022/04/22 10:11:11 [clock:4] Main phase starts.
2022/04/22 10:11:11 [threads:4] Created thread "generic queue #1" (1 total).
2022/04/22 10:11:11 [threads:4] Created thread "generic queue #2" (2 total).
2022/04/22 10:11:11 [threads:4] Created thread "non-blocking queue #1" (3 total).
2022/04/22 10:11:11 [threads:4] Created thread "non-blocking queue #2" (4 total).
2022/04/22 10:11:11 [video.add_text:3] Using ffmpeg implementation
2022/04/22 10:11:11 [clock.main:3] Streaming loop starts in auto-sync mode
2022/04/22 10:11:11 [clock.main:3] Delegating synchronisation to CPU clock
[h264 @ 0x7f4d60004cc0] nal_unit_type: 7(SPS), nal_ref_idc: 3
[h264 @ 0x7f4d60004cc0] nal_unit_type: 8(PPS), nal_ref_idc: 3
[flv @ 0x7f4d74016980] Tag avc1 incompatible with output codec id '27' ([7][0][0][0])
2022/04/22 10:11:12 [clock.main:4] Source /tmp/out.flv failed while streaming: Avutil.Error(Invalid data found when processing input)!
2022/04/22 10:11:12 [clock.main:4] Raised by primitive operation at Ffmpeg_copy_encoder.mk_stream_copy.push in file "encoder/ffmpeg_copy_encoder.ml", line 138, characters 16-60
2022/04/22 10:11:12 [clock.main:4] Called from Stdlib__List.iter in file "list.ml", line 110, characters 12-15
2022/04/22 10:11:12 [clock.main:4] Called from Stdlib__Option.map in file "option.ml", line 24, characters 57-62
2022/04/22 10:11:12 [clock.main:4] Called from Ffmpeg_encoder_common.encode in file "encoder/ffmpeg_encoder_common.ml", line 92, characters 4-80
2022/04/22 10:11:12 [clock.main:4] Called from Ffmpeg_encoder_common.encoder.encode in file "encoder/ffmpeg_encoder_common.ml", line 215, characters 4-44
2022/04/22 10:11:12 [clock.main:4] Called from Output.encoded#send_frame.output_chunks.f in file "outputs/output.ml", line 243, characters 21-59
2022/04/22 10:11:12 [clock.main:4] Called from Output.output#output in file "outputs/output.ml", line 173, characters 10-35
2022/04/22 10:11:12 [clock.main:4] Called from Clock.clock#end_tick.(fun) in file "clock.ml", line 299, characters 14-22

``

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Switching between live rtmp stream and video playlist is not working #2331

TheRealMattLear Oct 21, 2020

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