- Posts: 7
- Joined: Sat Apr 21, 2018 11:19 am
- Real Name: Andrea Re
Hi all,
I know this has been asked countless times in the past, but I have been spending days reviewing threads, but I am still none the wiser.
I am currently using an older iMac (late 2008) with 8Gb of RAM and an SSD with plenty of space.
DaVinci 14.3.0.014
I am trying to shoot a video using an iPhone (a-ha!!) and I have the variable frame rate issue. I have been using handbrake audit looks as if now I do have a fixed frame rate video, but when I load it it goes out all choppy and the frame rate on the bar at the top goes up and down like a yoyo. Clearly the video encoder is H.264 (shock horror!) and I have tried to change it to MPEG-4, but, again, it has made no difference.
I have tried using a camera which SHOULD have a fixed frame rate, but no joy. The result is the same.
I am not sure where the problem is... is it my older graphics card? The video? The way they are encoded? There are A LOT of solutions around but they all seem to apply to a smaller subset of people.
Apologies for not making any sense... If you need further info, please DO ask and I'll do my best to find the relevant info.
This is what Mediainfo says about my video after it went through handbrake, in case it helps:
Thanks
I know this has been asked countless times in the past, but I have been spending days reviewing threads, but I am still none the wiser.
I am currently using an older iMac (late 2008) with 8Gb of RAM and an SSD with plenty of space.
DaVinci 14.3.0.014
I am trying to shoot a video using an iPhone (a-ha!!) and I have the variable frame rate issue. I have been using handbrake audit looks as if now I do have a fixed frame rate video, but when I load it it goes out all choppy and the frame rate on the bar at the top goes up and down like a yoyo. Clearly the video encoder is H.264 (shock horror!) and I have tried to change it to MPEG-4, but, again, it has made no difference.
I have tried using a camera which SHOULD have a fixed frame rate, but no joy. The result is the same.
I am not sure where the problem is... is it my older graphics card? The video? The way they are encoded? There are A LOT of solutions around but they all seem to apply to a smaller subset of people.
Apologies for not making any sense... If you need further info, please DO ask and I'll do my best to find the relevant info.
This is what Mediainfo says about my video after it went through handbrake, in case it helps:
General
Complete name : /Users/andrea/Andrea stored/Video Youtube AS/Curve di crescita/Video originali/IMG_0198.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (isom/iso2/avc1/mp41)
File size : 238 MiB
Duration : 3 min 50 s
Overall bit rate mode : Variable
Overall bit rate : 8 651 kb/s
Encoded date : UTC 2018-04-21 10:22:32
Tagged date : UTC 2018-04-21 10:22:32
Writing application : HandBrake 1.1.0 2018040700
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 3 min 50 s
Bit rate : 8 551 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 (30000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.138
Stream size : 235 MiB (99%)
Writing library : x264 core 155 r2893 b00bcaf
Encoding settings : cabac=1 / ref=2 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=6 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / 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=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=1 / keyint=300 / keyint_min=30 / scenecut=40 / intra_refresh=0 / rc_lookahead=30 / rc=crf / mbtree=1 / crf=20.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Encoded date : UTC 2018-04-21 10:22:32
Tagged date : UTC 2018-04-21 10:22:32
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : mp4a-40-2
Duration : 3 min 50 s
Bit rate mode : Variable
Bit rate : 98.3 kb/s
Channel(s) : 2 channels
Channel(s)_Original : 1 channel
Channel positions : Front: C
Sampling rate : 44.1 kHz
Frame rate : 43.066 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 2.70 MiB (1%)
Title : Mono / Mono
Default : Yes
Alternate group : 1
Encoded date : UTC 2018-04-21 10:22:32
Tagged date : UTC 2018-04-21 10:22:32
Thanks
iMac9,1
Processor: Intel Core 2 Duo
Processor Speed:2.66 GHz
Number of Processors:1
Total Number of Cores:2
Memory:8 GB
Bus Speed:1.07 GHz
Chipset:NVIDIA GeForce 9400
Bus: PCI
VRAM (Total):256 MB
System: OS X 10.11.6 (15G20015)
Kernel: Darwin 15.6.0
Processor: Intel Core 2 Duo
Processor Speed:2.66 GHz
Number of Processors:1
Total Number of Cores:2
Memory:8 GB
Bus Speed:1.07 GHz
Chipset:NVIDIA GeForce 9400
Bus: PCI
VRAM (Total):256 MB
System: OS X 10.11.6 (15G20015)
Kernel: Darwin 15.6.0