On 6/21/2022 6:58 PM, Samuel Sieb wrote:
On 6/21/22 15:55, Bill Cunningham wrote:
>
> On 6/21/2022 6:22 PM, Samuel Sieb wrote:
>> On 6/21/22 15:15, Bill Cunningham wrote:
>>> Does this show anything? And, I did try webm and it worked
>>> fine. IDK which is the smaller file, webm or mp4. I usually watch
>>> this stuff with vlc on windows or an OS using vlc.
>>>
>>> I tried ffmpeg -formats mp4 -i re.iso re.mp4,
>>>
>>> [mpeg4_v4l2m2m @ 0x55caf16f2dc0] Could not find a valid device
>>> [mpeg4_v4l2m2m @ 0x55caf16f2dc0] can't configure encoder
>>
>> This is still your original problem which I explained to you then.
>> That is a hardware encoder and you don't have whatever hardware it's
>> looking for. You have to use "-vcodec" to select a different encoder.
>>
>> Try "-vcodec libopenh264" since you're still using ffmpeg from the
>> Fedora repo.
>>
> OK wow well this is new,
>
> libpostproc 56. 3.100 / 56. 3.100
> [NULL @ 0x5599ce560c40] non-existing PPS 4 referenced
> [NULL @ 0x5599ce560c40] non-existing PPS 0 referenced
> [extract_extradata @ 0x5599ce565c80] Invalid NAL unit 0, skipping.
> Last message repeated 4 times
> [libopenh264 @ 0x5599ce560c40] [OpenH264] this = 0x0x5599ce568800,
> Warning:parse_nal(), no exist Sequence Parameter Sets ahead of
> sequence when try to decode NAL(type:0).
This looks like you've told it to decode with openh264 which won't
work because it should be an mp2 stream.
ffmpeg -i re.iso -vcodec libopenh264 re.mp4
OK that seems to do it! I thought I might have to alter a bitrate or
something. Just get the right codec. I typed the above just as you said.
Thanks a lot!! It was seeming that webm was taking a bit longer to convert.