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21st January 2013, 17:28 | #1 | Link |
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Join Date: Mar 2009
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Concatenate h264 stream from different sources? keeps joining as 2 different tracks
I'm trying to join two h264 video streams into one mp4 with one track.
But mp4box keeps outputting an mp4 file containing two separate tracks. If I try to force it into one track with avidemux, the 2nd part of the video stream is corrupt. Both video streams have the same resolution. Mp4box info of the two h264 files- Code:
-info 1111.mp4 * Movie Info * Timescale 600 - Duration 00:00:09.008 Fragmented File no - 1 track(s) File Brand isom - version 1 Created: GMT Mon Jan 21 11:46:47 2013 File has root IOD Scene PL 0xff - Graphics PL 0xff - OD PL 0xff Visual PL: AVC/H264 Profile (0x15) Audio PL: No audio capability required (0xff) No streams included in root OD Track # 1 Info - TrackID 1 - TimeScale 30000 - Duration 00:00:09.009 Media Info: Language "Undetermined" - Type "vide:avc1" - 270 samples Visual Track layout: x=0 y=0 width=704 height=386 MPEG-4 Config: Visual Stream - ObjectTypeIndication 0x21 AVC/H264 Video - Visual Size 704 x 386 AVC Info: 1 SPS - 1 PPS - Profile High @ Level 3 NAL Unit length bits: 32 Pixel Aspect Ratio 1:1 - Indicated track size 704 x 386 Self-synchronized Code:
-info 4444.mp4 * Movie Info * Timescale 600 - Duration 00:03:50.230 Fragmented File no - 1 track(s) File Brand isom - version 1 Created: GMT Mon Jan 21 11:29:47 2013 File has root IOD Scene PL 0xff - Graphics PL 0xff - OD PL 0xff Visual PL: AVC/H264 Profile (0x15) Audio PL: No audio capability required (0xff) No streams included in root OD Track # 1 Info - TrackID 1 - TimeScale 11988 - Duration 00:03:50.230 Media Info: Language "Undetermined" - Type "vide:avc1" - 6900 samples Visual Track layout: x=0 y=0 width=704 height=386 MPEG-4 Config: Visual Stream - ObjectTypeIndication 0x21 AVC/H264 Video - Visual Size 704 x 386 AVC Info: 1 SPS - 1 PPS - Profile High @ Level 3.1 NAL Unit length bits: 32 Pixel Aspect Ratio 1:1 - Indicated track size 704 x 386 Self-synchronized Anyone know why I can't join these two files into one stream in an mp4 container? I'm trying to do the same thing I've done with xvid, where you can join 2 different video sources as long as resolution is the same. |
21st January 2013, 17:42 | #2 | Link |
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Join Date: Sep 2007
Posts: 5,346
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High@Level3.0 vs. High@Level3.1 . Even if it's just a "label", usually everything has to match for the highest probability to append streams successfully
You might be able to patch one to match the other using H264 Level Editor, or this ffmpeg patched build , then join . But if there are other differences in the streams, you might have problems anyways http://forum.doom9.org/showthread.php?t=152419 http://www.videohelp.com/tools/H264-AVC-Level-Editor Another approach would be to re-encode the 1st one using the same settings as the 2nd, then try appending |
21st January 2013, 22:15 | #3 | Link |
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Join Date: Mar 2009
Posts: 14
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modified the profile level of 1111.mp4 to 3.1, forced cat, and error message and video still corrupt....
Code:
D:\>MP4Box.exe -force-cat -cat 1111.h264 -cat 4444.h264 testing.mp4 AVC-H264 import - frame size 704 x 386 at 29.970 FPS AVC Import results: 270 samples - Slices: 2 I 266 P 2 B - 1 SEI - 2 IDR Appending file 1111.h264 No suitable destination track found - creating new one (type vide) AVC-H264 import - frame size 704 x 386 at 29.970 FPS AVC Import results: 6900 samples - Slices: 23 I 1868 P 5009 B - 0 SEI - 23 IDR Stream uses forward prediction - stream CTS offset: 2 frames Appending file 4444.h264 WARNING: Concatenating track ID 1 even though sample descriptions do not match Saving to testing.mp4: 0.500 secs Interleaving |
22nd January 2013, 10:35 | #5 | Link |
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Join Date: Mar 2009
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Got it to work finally after lots of trial and error and tons of remuxing.
Used x264gui to reencode the 9 second intro to match the profile settings of the 4444.mp4, then used mp4box to extract h264 raw streams, -concat'd the two h264 streams to mp4, extract the h264 again from the concat'd file, then remuxed to final output file. |
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