[FFmpeg-user] Transcoding for the Roku with recent ffmpeg

[Yan Seiner]

Yan Seiner wrote:
> Carl Eugen Hoyos wrote:
>
>> (Does the "Roku" only support h264 or also mpeg4? Testing without 
>> external libraries makes finding regressions much easier.)
>>   
> The Roku is picky about the format.  I think it only supports h264.  
> The problem is finding the correct format.
>
OK, replying to my self in hope of enlightenment.  Here's the settings 
for the video that will not play as reported by mediainfo:

< Writing library                          : x264 core 129 r2230 1cffe9f
< Encoding settings                        : cabac=0 / ref=2 / 
deblock=1:0:0 / analyse=0x1:0x111 / me=hex / subme=6 / psy=1 / 
psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 
8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / 
threads=3 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / 
interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=0 / 
weightp=0 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / 
rc_lookahead=30 / rc=crf / mbtree=1 / crf=23.0 / qcomp=0.60 / qpmin=0 / 
qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00

And here's one that will play:

 > Writing library                          : x264 core 114
 > Encoding settings                        : cabac=0 / ref=5 / 
deblock=1:0:0 / analyse=0x1:0x111 / me=umh / subme=8 / psy=1 / 
psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 
8x8dct=0 / 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=0 / weightp=0 / keyint=250 / keyint_min=25 
/ scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=abr / mbtree=1 / 
bitrate=1200 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 
/ ip_ratio=1.41 / aq=1:1.00


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