<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style></style></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1>Hello,<o:p></o:p><o:p> </o:p>I have captured about 35 seconds of the stream to an .mp4 file.<o:p></o:p><o:p> </o:p>When using it as a filesrc, I see similar results as to the souphttpsrc. That is gstreamer can transcode the video but cannot transcode the audio. Although, gstreamer does not through any errors when using the filesrc.<o:p></o:p><o:p> </o:p>Can someone offer a suggestion as to why VLC can playback the file but gstreamer can’t seem to parse the AAC audio from the file?<o:p></o:p><o:p> </o:p>Here is what ffprobe has to say about the file:<o:p></o:p><o:p> </o:p>ffprobe service2-3.mp4 <o:p></o:p>Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'service2-3.mp4':<o:p></o:p> Metadata:<o:p></o:p> major_brand : dash<o:p></o:p> minor_version : 1<o:p></o:p> compatible_brands: isomavc1dash<o:p></o:p> Duration: 1724:34:52.07, start: 6208446.033333, bitrate: 0 kb/s<o:p></o:p> Stream #0:0(und): Video: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv), 3840x2160 [SAR 1:1 DAR 16:9], 0 kb/s, 60 fps, 60 tbr, 10000k tbn, 60 tbc (default)<o:p></o:p> Metadata:<o:p></o:p> handler_name : VideoHandler<o:p></o:p> encoder : HEVC Coding<o:p></o:p> Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, max. 161 kb/s (default)<o:p></o:p> Metadata:<o:p></o:p> handler_name : SoundHandle<o:p></o:p><o:p> </o:p>Thanks,<o:p></o:p>Rand<o:p></o:p><o:p> </o:p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'>From: gstreamer-devel [mailto:gstreamer-devel-bounces@lists.freedesktop.org] On Behalf Of Rand Graham Sent: Friday, June 07, 2019 4:48 PM To: Discussion of the development of and with GStreamer <gstreamer-devel@lists.freedesktop.org> Subject: demuxing audio and video <o:p></o:p></div></div><o:p> </o:p>Hello,<o:p></o:p><o:p> </o:p>I am trying to demux a stream that contains both audio and video. <o:p></o:p>The demuxing fails when I try to demux both audio and video.<o:p></o:p>If I demux video only, I can see the video.<o:p></o:p>If I demux audio only, the pipeline fails.<o:p></o:p>This stream consists of ISOBMFF segments.<o:p></o:p><o:p> </o:p>The video is h.265 and the audio is AAC. When I try to playback the url in VLC, the video and audio play.<o:p></o:p><o:p> </o:p>Can someone offer some tips to debug this issue?<o:p></o:p><o:p> </o:p>Here is the failure case.<o:p></o:p><o:p> </o:p>gst-launch-1.0 -v -e mpegtsmux name=m ! hlssink target-duration=5 souphttpsrc location=http://127.0.0.1:8000/routeservice/17,18 decodebin ! audioconvert ! voaacenc bitrate=128000 ! m.Setting pipeline to PAUSED ...<o:p></o:p>Pipeline is PREROLLING ...<o:p></o:p>0:00:00.037766906 22104 0x2245630 WARN structure gststructure.c:1832:priv_gst_structure_append_to_gstring: No value transform to serialize field 'session' of type 'SoupSession'<o:p></o:p>Got context from element 'souphttpsrc0': gst.soup.session=context, session=(SoupSession)NULL, force=(boolean)false;<o:p></o:p>0:00:02.462560850 22104 0x2202370 WARN basesrc gstbasesrc.c:3055:gst_base_src_loop:<souphttpsrc0> error: Internal data stream error.<o:p></o:p>0:00:02.462604681 22104 0x2202370 WARN basesrc gstbasesrc.c:3055:gst_base_src_loop:<souphttpsrc0> error: streaming stopped, reason not-linked (-1)<o:p></o:p>ERROR: from element /GstPipeline:pipeline0/GstSoupHTTPSrc:souphttpsrc0: Internal data stream error<o:p></o:p><o:p> </o:p>Regards,<o:p></o:p>Rand<o:p></o:p><o:p> </o:p></div></body></html>