How to add subtitle to mp4?

[socrates]

Hello,

I have a mp4 movie file and separate srt subtitle file. How do I add srt into mp4 without hard-coding it? I don't want any re-encoding of the video or audio stream in mp4, but just merge subtitle to it. Is there any software for it? I found that handbrake tries to alter video-audio components when I try to add subtitle, or did I miss some settings in handbrake?

Thanks in advance

[Baldrick]

Use a multiplexer like Mymp4boxgui. Add the mp4. Add the srt. Click Save as and last click Mux.

[pandy]

Depends form player capabilities - hardcoded are most universal but this imply video recoding (as such long time and loss of quality).

[socrates]

Hi,

Just bought Bigasoft Total Video Converter 5 and tried to incorporate subtitle into mp4. I kept the video and audio as 'copy' mode and the preview video showed subtitle in it. But the product file did not incorporate it. Wrote a mail to Bigasoft and awaiting reply. Submitting query here to get quick resolution. Please...anyone...it is frustrating...

[drjtech]

Don't buy anything. Use My MP4Box GUI like Baldrick suggested.

[socrates]

Hi,

Yes I used mymp4boxgui but unsuccessful. I shall explain in detail

My initial mp4 is this

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 5 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 1h 34mn
Bit rate : 2 500 Kbps
Maximum bit rate : 23.9 Mbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 23.976 fps
Minimum frame rate : 15.873 fps
Maximum frame rate : 24.390 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.113
Stream size : 1.64 GiB (87%)
Writing library : x264 core 112
Encoding settings : cabac=1 / ref=5 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / 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=3 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / constrained_intra=0 / bframes=5 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=abr / mbtree=1 / bitrate=2500 / ratetol=1.0 / qcomp=0.60 / qpmin=3 / qpmax=51 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Encoded date : UTC 2015-10-19 18:55:29
Tagged date : UTC 2015-10-19 03:42:15
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 1h 34mn
Bit rate mode : Variable
Bit rate : 384 Kbps
Maximum bit rate : 773 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Compression mode : Lossy
Delay relative to video : 83ms
Stream size : 259 MiB (13%)
Language : English
Encoded date : UTC 2015-10-19 03:41:26
Tagged date : UTC 2015-10-19

I wanted to recode aac to ac3 which I can do successfully using avidemux or Bigasoft TVC5. Both of them didnot alter video file like all other encoders did even when I chose video as 'copy'. I was told that medioinfo might give me wrong info as video altered, and so I used bitrate viewer to check the product files. The satisfied product file is this

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 5 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 1h 34mn
Bit rate mode : Variable
Bit rate : 2 500 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 23.976 fps
Minimum frame rate : 15.873 fps
Maximum frame rate : 24.390 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.113
Stream size : 1.64 GiB (87%)
Writing library : x264 core 112
Encoding settings : cabac=1 / ref=5 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / 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=3 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / constrained_intra=0 / bframes=5 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=abr / mbtree=1 / bitrate=2500 / ratetol=1.0 / qcomp=0.60 / qpmin=3 / qpmax=51 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Encoded date : UTC 2015-11-18 16:23:04
Tagged date : UTC 2015-11-18 16:27:13
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

Audio
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Format settings, Endianness : Big
Codec ID : ac-3
Duration : 1h 34mn
Bit rate mode : Constant
Bit rate : 384 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 259 MiB (13%)
Encoded date : UTC 2015-11-18 16:23:04
Tagged date : UTC 2015-11-18 16:27:13

Now I want to incorporate srt subtitle file into this without any video or audio alteration. Bigasoft and mymp4boxgui replies as successul operation but srt never gets incorporated. Why is that?...or any other way or setting that I need to change?
Help is appreciated
If I try incorporating srt into original fine, everything goes fine and it gets incorporated

[bulgom]

·
Hi

May be you should post a short sample of your video + of the .srt file?


I just tested again: adding an .srt to a AVC H.264 MP4, that contains 6-channel .ac3 sound, and even a 2nd track: .mp3, 2-channel (simple test) — but using an old "Yamb 2.0/MP4Box" *, not "mympa4boxgui". It just worked (again)...

* Under (old...) Windows XP 32-bits. And under Win. 8 64-bits, with some problems in that case, to force "Yamb/MP4Box" to work (because of a wide screen PC...), but it worked also.

Attached: "MediaInfo" report.

[socrates]

Hi all

Thanks for the various suggestions and effort. I should say that that suggestion from bulgom solved the problem. Now I rencode aac to ac3 within mp4 without altering video using avidemux or Bigasoft TVC, and then use YAMB to mux srt subtitle into it. The resultant file is just the way I want it....whew! Thank you again- solved a month long of irritation....