[FFmpeg-user] Sony XAVC transcoding

[Wayne Poll]

Hi,

I'm trying to work with footage form the new Sony 4k camera, the F55, which can record RAW footage and also Sony's new AVC codec, XAVC.

ffmpeg does a great job of converting the footage to Apple ProRes 422 (HQ) at 4096 x 2160 pixels, but... I'm having all manner of grief trying to get the multiple audio streama from the MXF wrapper to the QuickTime container.

The input stream looks like this: -

Input #0, mxf, from 'input.mxf':
  Metadata:
    timecode        : 18:43:23;25
  Duration: 00:00:31.33, start: 0.000000, bitrate: 298202 kb/s
    Stream #0:0: Video: h264 (High 4:2:2 Intra), yuv422p10le, 4096x2160 [SAR 1:1 DAR 256:135], 29.97 fps, 29.97 tbr, 29.97 tbn, 59.94 tbc
    Stream #0:1: Audio: pcm_s24le, 48000 Hz, mono, s32, 1152 kb/s
    Stream #0:2: Audio: pcm_s24le, 48000 Hz, mono, s32, 1152 kb/s
    Stream #0:3: Audio: pcm_s24le, 48000 Hz, mono, s32, 1152 kb/s
    Stream #0:4: Audio: pcm_s24le, 48000 Hz, mono, s32, 1152 kb/s
    Stream #0:5: Audio: pcm_s24le, 48000 Hz, mono, s32, 1152 kb/s
    Stream #0:6: Audio: pcm_s24le, 48000 Hz, mono, s32, 1152 kb/s
    Stream #0:7: Audio: pcm_s24le, 48000 Hz, mono, s32, 1152 kb/s
    Stream #0:8: Audio: pcm_s24le, 48000 Hz, mono, s32, 1152 kb/s
    Stream #0:9: Data: none

I'm using this commandline: -

./ffmpeg -i input.mxf -map 0 -map -0:9:0 -c copy -c:v prores -profile:v 3 output.mov

(process all streams, except stream #0:9: Data, convert video stream from h264 to ProRes 422 (HQ) and leave audio as PCM 24-bit).

The resultant QT file has 1 video and 8 audio tracks but tracks 2-8 are "muted" or disabled. I have tried many different map arrangements etc. but I still get the same result - just one video and one audio. The command above represents the simplest of the many variations I've tested. Anyone tried XAVC to PR422 yet?   :)

Wayne Poll | Technical & IT Systems Manager |
NHNZ | 5 Melville Street, Dunedin 9016, New Zealand |