Hi All,
I am trying to create a pipeline for basically streaming an mp4 file via RTP stream (DSS or gst-rtsp-server) and below are the commands i triggered for two different mp4 files i have - gst-launch -vvv filesrc location=/home/ubuntu/3d.mp4 ! qtdemux name=d d. ! queue ! rtph264pay pt=96 name=pay0 d. ! queue ! rtpmp4apay pt=97 name=pay1 gst-launch -vvv filesrc location=/home/ubuntu/sample.mp4 ! decodebin2 name=d d. ! queue ! rtph264pay pt=96 name=pay0 d. ! queue ! rtpmp4apay pt=97 name=pay1 both of the above files were able to generate the desired output but my query is why i had to use different demixers for two mp4 files (below are the mdia info for both the files) also i saw some where that decodebin2 is a sort of global demuxer/decoder which can be used for almost any format (please correct me if i am wrong here) then why its not able to stream both the files. media info of 3d.mp4 - General Complete name : D:\emojo\sample_vids\3d.mp4 Format : MPEG-4 Format profile : Base Media / Version 2 Codec ID : mp42 File size : 253 KiB Duration : 8s 83ms Overall bit rate mode : Variable Overall bit rate : 257 Kbps Encoded date : UTC 2010-07-19 14:16:50 Tagged date : UTC 2010-07-19 14:16:50 gsst : 0 gstd : 8590 gssd : B4A7DDA83MM1336570568929089 gshh : o-o.preferred.fra07t11.v3.cache5.c.youtube.com Video ID : 2 Format : AVC Format/Info : Advanced Video Codec Format profile : Baseline@L2.1 Format settings, CABAC : No Format settings, ReFrames : 1 frame Format settings, GOP : M=1, N=12 Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 8s 83ms Bit rate : 251 Kbps Maximum bit rate : 948 Kbps Width : 480 pixels Height : 360 pixels Display aspect ratio : 4:3 Frame rate mode : Constant Frame rate : 24.000 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.060 Stream size : 247 KiB (98%) Title : (C) 2007 Google Inc. v08.13.2007. Encoded date : UTC 2010-07-19 14:16:50 Tagged date : UTC 2010-07-19 14:16:50 Audio ID : 1 Format : AAC Format/Info : Advanced Audio Codec Format profile : LC Codec ID : 40 Duration : 8s 80ms Bit rate mode : Variable Bit rate : 3 096 bps Maximum bit rate : 3 240 bps Channel(s) : 2 channels Channel positions : Front: L R Sampling rate : 44.1 KHz Compression mode : Lossy Stream size : 3.06 KiB (1%) Title : (C) 2007 Google Inc. v08.13.2007. Encoded date : UTC 2010-07-19 14:16:50 Tagged date : UTC 2010-07-19 14:16:50 media info for sample.mp4 - General Complete name : D:\emojo\sample_vids\sample.mp4 Format : MPEG-4 Format profile : Base Media Codec ID : isom File size : 11.2 MiB Duration : 3mn 19s Overall bit rate mode : Variable Overall bit rate : 471 Kbps Video ID : 1 Format : MPEG-4 Visual Format profile : Simple@L3 Format settings, BVOP : No Format settings, QPel : No Format settings, GMC : No warppoints Format settings, Matrix : Default (H.263) Codec ID : 20 Duration : 3mn 19s Bit rate : 425 Kbps Width : 320 pixels Height : 240 pixels Display aspect ratio : 4:3 Frame rate mode : Constant Frame rate : 20.000 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Compression mode : Lossy Bits/(Pixel*Frame) : 0.277 Stream size : 10.1 MiB (90%) Writing library : XviD 1.1.2 (UTC 2006-11-01) Audio ID : 2 Format : AAC Format/Info : Advanced Audio Codec Format profile : LC Codec ID : 40 Duration : 3mn 19s Bit rate mode : Variable Bit rate : 42.8 Kbps Channel(s) : 2 channels Channel positions : Front: L R Sampling rate : 32.0 KHz Compression mode : Lossy Stream size : 1.01 MiB (9%) Thanks, AJ |
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