[Cin] ffmpeg 7.0 soon to be released

[Andrea paz]

> I assume attached tar archive then only about TEST1 ?

?

In test 1 I used a VP8/mov source without audio [4-3_3-2.mov] combined with an
mp3/wav audio and in addition the render result [igor_test3.webm]:
VP9/webm with audio
Vorbis (webm.webm preset). [I didn't notice that the wav audio was
mp3, maybe I need to
use PCM audio?]
In test 2 I used Big Buck Bunny_sunflower in h264/mp4 version with mp3 audio.

In both tests I simply loaded (in test 1, the project and in test
2, the file) with the “replace current project” option and then did a little
playback/scrolling.

The messages shown are everything that appeared between starting and
closing CinGG
(I just removed the normal start/end messages that CinGG has).

The problems with vaapi are probably due to the combination of AMD,
mesa, amdgpu and
rocm, since every time they are updated the behavior always changes and
new problems always arise...
However in CinGG/ffmpeg7 it seems that vaapi is working (test 2
[bbb_sunflower_1080p_30fps_normal.mp4]: no line “HW device init failed, using SW
decode"). In test 1 you have errors with vaapi with VP8 [4-3_3-2.mov],
which I believe is
not supported. But there are no errors with VP9 [igor_test3.webm],
which certainly
supports vaapi.

> I wonder if plain system ffmpeg still  works for hw decoding?

In Arch I still have ffmpeg 6.1.1. I have tried transcoding from mp4 to mp4, via
decoding and encoding in vaapi, but I don't understand if decoding in
vaapi works,
while encoding works (https://trac.ffmpeg.org/wiki/Hardware/VAAPI):

$ ffmpeg -hwaccel vaapi -hwaccel_device /dev/dri/renderD128
-hwaccel_output_format vaapi
-i mixkit-worried-and-sad-woman-outdoors-8739.mp4  -c:v h264_vaapi
-b:v 2M -maxrate 2M
output.mp4

[...]
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
'mixkit-worried-and-sad-woman-outdoors-8739.mp4':
  Metadata:
    major_brand     : M4V
    minor_version   : 1
    compatible_brands: isomavc1mp42
    creation_time   : 2020-06-21T18:53:40.000000Z
  Duration: 00:00:15.00, start: 0.000000, bitrate: 24801 kb/s
  Stream #0:0[0x1](und): Video: h264 (Main) (avc1 / 0x31637661),
yuv420p(tv, bt709,
progressive), 1920x1080 [SAR 1:1 DAR 16:9], 24798 kb/s, 24 fps, 24
tbr, 24k tbn (default)
    Metadata:
      creation_time   : 2020-06-21T18:53:40.000000Z
      handler_name    : ETI ISO Video Media Handler
      vendor_id       : [0][0][0][0]
      encoder         : Elemental H.264
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (h264_vaapi))
Press [q] to stop, [?] for help
[h264_vaapi @ 0x571d363508c0] Driver does not support some wanted
packed headers (wanted
0xd, found 0x1).
Output #0, mp4, to 'output.mp4':
  Metadata:
    major_brand     : M4V
    minor_version   : 1
    compatible_brands: isomavc1mp42
    encoder         : Lavf60.16.100
  Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), vaapi(tv,
bt709, progressive),
1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 2000 kb/s, 24 fps, 12288 tbn (default)
    Metadata:
      creation_time   : 2020-06-21T18:53:40.000000Z
      handler_name    : ETI ISO Video Media Handler
      vendor_id       : [0][0][0][0]
      encoder         : Lavc60.31.102 h264_vaapi
[out#0/mp4 @ 0x571d3632dc80] video:3649kB audio:0kB subtitle:0kB other
streams:0kB global
headers:0kB muxing overhead: 0.064330%
frame=  360 fps=196 q=-0.0 Lsize=    3652kB time=00:00:14.95
bitrate=1999.9kbits/s
speed=8.14x