Jtdylktuy

I have a file called test.m4a and test.srt in the same folder.

How can I burn in the subtitles to m4a?

The output I am getting is :

Korays-MacBook-Pro:~ koraytugay$ ./ffmpeg -i test.m4v -vf subtitles=test.srt out.m4v

ffmpeg version 2.4.2 Copyright (c) 2000-2014 the FFmpeg developers

  built on Oct  8 2014 19:37:09 with llvm-gcc 4.2.1 (LLVM build 2336.11.00)

  configuration: --prefix=/Volumes/Ramdisk/sw --enable-gpl --enable-pthreads --enable-version3 --enable-libspeex --enable-libvpx --disable-decoder=libvpx --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-avfilter --enable-libopencore_amrwb --enable-libopencore_amrnb --enable-filters --enable-libgsm --enable-libvidstab --enable-libx265 --arch=x86_64 --enable-runtime-cpudetect

  libavutil      54.  7.100 / 54.  7.100

  libavcodec     56.  1.100 / 56.  1.100

  libavformat    56.  4.101 / 56.  4.101

  libavdevice    56.  0.100 / 56.  0.100

  libavfilter     5.  1.100 /  5.  1.100

  libswscale      3.  0.100 /  3.  0.100

  libswresample   1.  1.100 /  1.  1.100

  libpostproc    53.  0.100 / 53.  0.100

[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fca6201e000] stream 0, timescale not set

[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fca6201e000] Could not find codec parameters for stream 1 (Video: none (drmi / 0x696D7264), 640x478, 1389 kb/s): unknown codec

Consider increasing the value for the 'analyzeduration' and 'probesize' options

[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fca6201e000] Could not find codec parameters for stream 2 (Subtitle: none (p608 / 0x38303670), 853x478, 0 kb/s): unknown codec

Consider increasing the value for the 'analyzeduration' and 'probesize' options

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.m4v':

  Metadata:

    major_brand     : M4V 

    minor_version   : 0

    compatible_brands: M4V mp42isom

    creation_time   : 2014-06-09 19:13:04

    title           : Day 1: 2:00 A.M. - 3:00 A.M.

    artist          : 24

    album_artist    : 24

    album           : 24

    genre           : Drama

    track           : 3

    disc            : 1/1

    compilation     : 0

    gapless_playback: 0

    date            : 2001-11-20T08:00:00Z

    copyright       : © 2001 Twentieth Century Fox Film Corporation

    description     : Jack verifies the key card was encrypted on Nina's computer.

    show            : 24

    episode_id      : 1AFF02 

    season_number   : 1

    episode_sort    : 3

    media_type      : 10

    synopsis        : Kimberly and Janet find themselves in great danger and must look for an escape route.  In her search for Kimberly, Teri has found help from Janet's father Alan York.  Meanwhile, Palmer attends a secret meeting about disturbing news that is about to break,

    iTunMOVI        : <?xml version="1.0" encoding="UTF-8"?>

                    : <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">

                    : <plist version="1.0">

                    : <dict>

                    :   <key>asset-info</key>

                    :   <dict>

                    :       <key>closed-captioned</key>

                    :       <true/>

                    :       <key>file-size</key>

                    :       <integer>484838754</integer>

                    :       <key>flavor</key>

                    :       <string>4:640x480LC-128</string>

                    :       <key>screen-format</key>

                    :       <string>widescreen</string>

                    :   </dict>

                    : </dict>

                    : </plist>

                    : 

  Duration: 00:42:30.01, start: 0.000000, bitrate: 1521 kb/s

    Stream #0:0(eng): Audio: aac (drms / 0x736D7264), 44100 Hz, stereo, fltp, 124 kb/s (default)

    Metadata:

      creation_time   : 2014-06-09 19:13:04

      handler_name    : Apple Sound Media Handler

    Stream #0:1(eng): Video: none (drmi / 0x696D7264), 640x478, 1389 kb/s, SAR 4:3 DAR 1280:717, 23.98 fps, 23.98 tbr, 2997 tbn, 2997 tbc (default)

    Metadata:

      creation_time   : 2014-06-09 19:13:04

      handler_name    : Apple Video Media Handler

    Stream #0:2(eng): Subtitle: none (p608 / 0x38303670), 853x478, 0 kb/s (default)

    Metadata:

      creation_time   : 2014-06-09 19:13:04

      handler_name    : Apple Closed Caption Media Handler

    Stream #0:3: Video: mjpeg, yuvj444p(pc, bt470bg), 1400x1400 [SAR 300:300 DAR 1:1], 90k tbr, 90k tbn, 90k tbc

[AVFilterGraph @ 0x7fca61e133e0] No such filter: 'subtitles'

Error opening filters!

Korays-MacBook-Pro:~ koraytugay$ 

Like the wiki page mentions, your ffmpeg build needs to be compiled with the --enable-libass option for the subtitle filter to work. Yours seems to be a build which unfortunately does not have that.

The easiest way would be to use Homebrew.

Then install ffmpeg:

brew install ffmpeg

Then, try again:

ffmpeg -i test.m4v -vf subtitles=test.srt -c:a copy out.m4v

Make sure to read the H.264 encoding guide to learn how to set the output quality.

Note that you cannot convert files that are DRM-encrypted, like the one in your example (see video codec drmi). This is an open ticket for ffmpeg, but unlikely to be resolved.

I ended up using vidcoder 1.5.22 in Windows running on Parallels.