Doom9's Forum - View Single Post - xvc - a next-generation video codec at xvc.io

colinhunt · 9th March 2018, 16:10

Got an error from the new encoding binary (I named it xvcenc_dev.exe). First here's the script I ran:

ffmpeg -y -loglevel fatal -threads 8 -i "10bit-dnxhd.mov" -frames:v 100 -an -sn -vsync 0 -pix_fmt yuv422p -f yuv4mpegpipe - | xvcenc_dev.exe -input-file - -verbose 1 -input-chroma-format 2 -input-bitdepth 10 -speed-mode 2 -qp 25 -explicit-encoder-settings "aqp_strength 16" -output-file d:\output.xvc

Note: source is 10bit 4:2:2 DNxHD 1080p59.94. ffplay has no problem playing it, and ffmpeg transcodes it just fine.

Error msg: Assertion failed: 0, file C:\Users\jonat\proj\xvc\app\xvc_enc_app\y4m_reader.cc, line 93

Currently encoding the same source using Selur's build, same parameters except without "-speed-mode 2". Hasn't crashed so far.

update - uploaded the DNxHD source to shared folder: "fruit--dnxhd-10bit-422-440mbps--1080p5994.mov" (1.16 GB)

9th March 2018, 16:10	#31 \| Link
colinhunt Registered User Join Date: Dec 2002 Posts: 1,022	Got an error from the new encoding binary (I named it xvcenc_dev.exe). First here's the script I ran: ffmpeg -y -loglevel fatal -threads 8 -i "10bit-dnxhd.mov" -frames:v 100 -an -sn -vsync 0 -pix_fmt yuv422p -f yuv4mpegpipe - \| xvcenc_dev.exe -input-file - -verbose 1 -input-chroma-format 2 -input-bitdepth 10 -speed-mode 2 -qp 25 -explicit-encoder-settings "aqp_strength 16" -output-file d:\output.xvc Note: source is 10bit 4:2:2 DNxHD 1080p59.94. ffplay has no problem playing it, and ffmpeg transcodes it just fine. Error msg: Assertion failed: 0, file C:\Users\jonat\proj\xvc\app\xvc_enc_app\y4m_reader.cc, line 93 Currently encoding the same source using Selur's build, same parameters except without "-speed-mode 2". Hasn't crashed so far. update - uploaded the DNxHD source to shared folder: "fruit--dnxhd-10bit-422-440mbps--1080p5994.mov" (1.16 GB) Last edited by colinhunt; 9th March 2018 at 16:45.