avcodec/g2meet, mjpegdec: Factor out common VLC initialization code

While just at it, remove the nb_codes parameter: It is redundant
(the number of codes is implicitly contained in the array containing how
many entries of a specific size there are) and for this reason it might
even be wrong, so it is better to check what is actually used instead.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/libavcodec/mjpegdec.h b/libavcodec/mjpegdec.h
index a824b5029c..732aeab994 100644
--- a/libavcodec/mjpegdec.h
+++ b/libavcodec/mjpegdec.h
@@ -161,6 +161,8 @@ typedef struct MJpegDecodeContext {
     void *hwaccel_picture_private;
 } MJpegDecodeContext;
 
+int ff_mjpeg_build_vlc(VLC *vlc, const uint8_t *bits_table,
+                       const uint8_t *val_table, int is_ac, void *logctx);
 int ff_mjpeg_decode_init(AVCodecContext *avctx);
 int ff_mjpeg_decode_end(AVCodecContext *avctx);
 int ff_mjpeg_receive_frame(AVCodecContext *avctx, AVFrame *frame);