wrapper/FFmpeg
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

avfilter/codecview: Enable QP visualization for H.264

Browse source 
The codecviewfilter, when used with qp=1, did not display quantization parameter values for H.264 streams because the QP table extraction was restricted to MPEG-2 video.

This patch enables H.264 support by updating ff_qp_table_extractto accept AV_VIDEO_ENC_PARAMS_H264. This allows for correct QP overlay on H.264 video

Signed-off-by: Timothee <timothee.informatique@regaud-chapuy.fr>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Timothee 2025-06-19 11:23:45 +02:00 • committed by Michael Niedermayer
parent e6298e0759
commit c94a419e32
No known key found for this signature in database
GPG key ID: B18E8928B3948D64
1 changed files with 3 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

5
libavfilter/qp_table.c
View file

@ -39,8 +39,9 @@ int ff_qp_table_extract(AVFrame *frame, int8_t **table, int *table_w, int *table
sd = av_frame_get_side_data(frame, AV_FRAME_DATA_VIDEO_ENC_PARAMS);
if (!sd)
return 0;
par = (AVVideoEncParams*)sd->data;
if (par->type != AV_VIDEO_ENC_PARAMS_MPEG2 ||
par = (AVVideoEncParams *)sd->data;
if ((par->type != AV_VIDEO_ENC_PARAMS_MPEG2 &&
par->type != AV_VIDEO_ENC_PARAMS_H264) ||
(par->nb_blocks != 0 && par->nb_blocks != nb_mb))
return AVERROR(ENOSYS);