avidemux question ....

[zero7404]

i have 2 h.264 mp4 files that i want to join into a single file, and i tried using avidemux to do this, but i'm not very experienced with the program and i'm getting errors. here is the metadata of both files:

file 1:

General
Complete name                    : D:\Temp\a1.mp4
Format                           : MPEG-4
Format_Commercial_IfAny          : XDCAM EX 25
Format profile                   : Base Media
Codec ID                         : isom
File size                        : 3.90 GiB
Duration                         : 2h 6mn
Overall bit rate mode            : Variable
Overall bit rate                 : 4 417 Kbps
Encoded date                     : UTC 2011-09-07 16:59:34
Tagged date                      : UTC 2011-09-07 16:59:34
Cover                            : Yes

Video
ID                               : 1
Format                           : AVC
Format/Info                      : Advanced Video Codec
Format_Commercial_IfAny          : XDCAM EX 25
Format profile                   : High@L4.0
Format settings, CABAC           : Yes
Format settings, ReFrames        : 3 frames
Codec ID                         : avc1
Codec ID/Info                    : Advanced Video Coding
Duration                         : 2h 6mn
Bit rate mode                    : Variable
Bit rate                         : 4 096 Kbps
Maximum bit rate                 : 25.0 Mbps
Width                            : 1 920 pixels
Height                           : 1 080 pixels
Display aspect ratio             : 16:9
Frame rate mode                  : Constant
Frame rate                       : 23.976 fps
Color space                      : YUV
Chroma subsampling               : 4:2:0
Bit depth                        : 8 bits
Scan type                        : Progressive
Bits/(Pixel*Frame)               : 0.082
Stream size                      : 3.61 GiB (93%)
Title                            : Alexander Revisited part 1
Writing library                  : x264 core 114 r1924 08d04a4
Encoding settings                : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x133 / me=umh / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=12 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / constrained_intra=0 / bframes=3 / b_pyramid=0 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=2pass / mbtree=1 / bitrate=4096 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=25000 / vbv_bufsize=25000 / nal_hrd=vbr / ip_ratio=1.40 / aq=1:1.00
Encoded date                     : UTC 2011-09-07 16:59:34
Tagged date                      : UTC 2011-09-07 17:03:20

Audio
ID                               : 2
Format                           : AAC
Format/Info                      : Advanced Audio Codec
Format profile                   : LC
Codec ID                         : 40
Duration                         : 2h 6mn
Bit rate mode                    : Variable
Bit rate                         : 317 Kbps
Maximum bit rate                 : 335 Kbps
Channel(s)                       : 6 channels
Channel positions                : Front: L C R, Side: L R, LFE
Sampling rate                    : 48.0 KHz
Compression mode                 : Lossy
Stream size                      : 287 MiB (7%)
Title                            : Ä
Language                         : English
Encoded date                     : UTC 2011-09-07 17:02:40
Tagged date                      : UTC 2011-09-07 17:03:20

file 2:

General
Complete name                    : D:\Temp\a2.mp4
Format                           : MPEG-4
Format_Commercial_IfAny          : XDCAM EX 25
Format profile                   : Base Media
Codec ID                         : isom
File size                        : 2.69 GiB
Duration                         : 1h 27mn
Overall bit rate mode            : Variable
Overall bit rate                 : 4 414 Kbps
Encoded date                     : UTC 2011-09-08 02:04:46
Tagged date                      : UTC 2011-09-08 02:04:46
Cover                            : Yes

Video
ID                               : 1
Format                           : AVC
Format/Info                      : Advanced Video Codec
Format_Commercial_IfAny          : XDCAM EX 25
Format profile                   : High@L4.0
Format settings, CABAC           : Yes
Format settings, ReFrames        : 3 frames
Codec ID                         : avc1
Codec ID/Info                    : Advanced Video Coding
Duration                         : 1h 27mn
Bit rate mode                    : Variable
Bit rate                         : 4 096 Kbps
Maximum bit rate                 : 25.0 Mbps
Width                            : 1 920 pixels
Height                           : 1 080 pixels
Display aspect ratio             : 16:9
Frame rate mode                  : Constant
Frame rate                       : 23.976 fps
Color space                      : YUV
Chroma subsampling               : 4:2:0
Bit depth                        : 8 bits
Scan type                        : Progressive
Bits/(Pixel*Frame)               : 0.082
Stream size                      : 2.49 GiB (93%)
Title                            : Alexander Revisited part 2
Writing library                  : x264 core 114 r1924 08d04a4
Encoding settings                : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x133 / me=umh / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=12 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / constrained_intra=0 / bframes=3 / b_pyramid=0 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=2pass / mbtree=1 / bitrate=4096 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=25000 / vbv_bufsize=25000 / nal_hrd=vbr / ip_ratio=1.40 / aq=1:1.00
Encoded date                     : UTC 2011-09-08 02:04:46
Tagged date                      : UTC 2011-09-08 02:05:57

Audio
ID                               : 2
Format                           : AAC
Format/Info                      : Advanced Audio Codec
Format profile                   : LC
Codec ID                         : 40
Duration                         : 1h 27mn
Bit rate mode                    : Variable
Bit rate                         : 317 Kbps
Maximum bit rate                 : 334 Kbps
Channel(s)                       : 6 channels
Channel positions                : Front: L C R, Side: L R, LFE
Sampling rate                    : 48.0 KHz
Compression mode                 : Lossy
Stream size                      : 198 MiB (7%)
Title                            : Ä
Language                         : English
Encoded date                     : UTC 2011-09-08 02:05:26
Tagged date                      : UTC 2011-09-08 02:05:57

when i open these in avidemux i get a prompt that asks me to convert or not convert which could result in frame accuracy problems. if i choose no, it continues to load the files but then crashes. so i choose to convert when i open the files. i chose append to add the second file after the first. i have my format option set to MP4 and audio/video set to copy. when i save the file, then open it, i notice that the audio and video are not synced properly.

does anyone know what i'm doing wrong ?

[poisondeathray]

Try a nightly build (2.6 beta build) , they work better with h.264 than the 2.5.x branch

http://avidemux.razorbyte.com.au/

or
http://avidemux.org/nightly/win32/


alternatively you can try appending in mp4box (yamb) or mkvtoolnix (re-wrap into mkv)

[zero7404]

Try a nightly build (2.6 beta build) , they work better with h.264 than the 2.5.x branch

http://avidemux.razorbyte.com.au/

or
http://avidemux.org/nightly/win32/


alternatively you can try appending in mp4box (yamb) or mkvtoolnix (re-wrap into mkv)

thanks for the suggestion, i tried yamb and it didn't want to output correctly, it kept crashing. i'll try a beta build of avidemux, but should i be using a 64 bit or 32 bit build ?

[zero7404]

i just tried the 64 bit 2.6 beta avidemux and it worked perfect, no artifacts or problems with the output. thank you

[zero7404]

been a while since this thread, there are updated builds of Avidemux 2.6 for windows, has anyone experienced any issues with the latest build (7800) ?
i am using 2.6 because it works well with combining MP4 movies that i make with ripbot using h264 and aac audio.

the build i'm on now is 7652, 2.6.0 ...

[Ethlred]

I don't get why 2.6 is a beta vs 2.5 is the stable version. 2.5 is NOT stable in comparison to 2.6.

[Hoser Rob]

I don't get why 2.6 is a beta vs 2.5 is the stable version. 2.5 is NOT stable in comparison to 2.6.

I've experienced that with previous versions ... just downloaded the newest build of 2.6. I'll try it later today.