From 8bfadacfd110d202829c5ecbe557a3cf02b44eb0 Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Sat, 30 Sep 2023 13:22:32 +0200
Subject: [PATCH] avcodec/rka: rename variable to something more representative

---
 libavcodec/rka.c | 30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/libavcodec/rka.c b/libavcodec/rka.c
index 92c1237d1f..62ad68dc4d 100644
--- a/libavcodec/rka.c
+++ b/libavcodec/rka.c
@@ -59,8 +59,8 @@ typedef struct AdaptiveModel {
 } AdaptiveModel;
 
 typedef struct ChContext {
-    int cmode;
-    int cmode2;
+    int qfactor;
+    int vrq;
     int last_nb_decoded;
     unsigned srate_pad;
     unsigned pos_idx;
@@ -131,7 +131,7 @@ static void adaptive_model_free(AdaptiveModel *am)
 static av_cold int rka_decode_init(AVCodecContext *avctx)
 {
     RKAContext *s = avctx->priv_data;
-    int cmode;
+    int qfactor;
 
     if (avctx->extradata_size < 16)
         return AVERROR_INVALIDDATA;
@@ -160,14 +160,14 @@ static av_cold int rka_decode_init(AVCodecContext *avctx)
     s->last_nb_samples = s->total_nb_samples % s->frame_samples;
     s->correlated = avctx->extradata[15] & 1;
 
-    cmode = avctx->extradata[14] & 0xf;
+    qfactor = avctx->extradata[14] & 0xf;
     if ((avctx->extradata[15] & 4) != 0)
-        cmode = -cmode;
+        qfactor = -qfactor;
 
-    s->ch[0].cmode = s->ch[1].cmode = cmode < 0 ? 2 : cmode;
-    s->ch[0].cmode2 = cmode < 0 ? FFABS(cmode) : 0;
-    s->ch[1].cmode2 = cmode < 0 ? FFABS(cmode) : 0;
-    av_log(avctx, AV_LOG_DEBUG, "cmode: %d\n", cmode);
+    s->ch[0].qfactor = s->ch[1].qfactor = qfactor < 0 ? 2 : qfactor;
+    s->ch[0].vrq = qfactor < 0 ? FFABS(qfactor) : 0;
+    s->ch[1].vrq = qfactor < 0 ? FFABS(qfactor) : 0;
+    av_log(avctx, AV_LOG_DEBUG, "qfactor: %d\n", qfactor);
 
     return 0;
 }
@@ -676,7 +676,7 @@ static int decode_filter(RKAContext *s, ChContext *ctx, ACoder *ac, int off, uns
     int m = 0, split, val, last_val = 0, ret;
     unsigned idx = 3, bits = 0;
 
-    if (ctx->cmode == 0) {
+    if (ctx->qfactor == 0) {
         if (amdl_decode_int(&ctx->fshift, ac, &bits, 15) < 0)
             return -1;
         bits &= 31U;
@@ -728,7 +728,7 @@ static int decode_filter(RKAContext *s, ChContext *ctx, ACoder *ac, int off, uns
             for (int i = 15; i < filt.size; i++)
                 sum += filt.coeffs[i] * (unsigned)src[-i];
             sum = sum >> 6;
-            if (ctx->cmode == 0) {
+            if (ctx->qfactor == 0) {
                 if (bits == 0) {
                     ctx->buf1[off] = sum + val;
                 } else {
@@ -737,7 +737,7 @@ static int decode_filter(RKAContext *s, ChContext *ctx, ACoder *ac, int off, uns
                 }
                 ctx->buf0[off] = ctx->buf1[off] + (unsigned)ctx->buf0[off + -1];
             } else {
-                val *= 1U << ctx->cmode;
+                val *= 1U << ctx->qfactor;
                 sum += ctx->buf0[off + -1] + (unsigned)val;
                 switch (s->bps) {
                 case 16: sum = av_clip_int16(sum); break;
@@ -748,12 +748,12 @@ static int decode_filter(RKAContext *s, ChContext *ctx, ACoder *ac, int off, uns
                 m += (unsigned)FFABS(ctx->buf1[off]);
             }
         }
-        if (ctx->cmode2 != 0) {
+        if (ctx->vrq != 0) {
             int sum = 0;
             for (int i = (signed)((unsigned)m << 6) / split; i > 0; i = i >> 1)
                 sum++;
-            sum = sum - (ctx->cmode2 + 7);
-            ctx->cmode = FFMAX(sum, tab[ctx->cmode2]);
+            sum = sum - (ctx->vrq + 7);
+            ctx->qfactor = FFMAX(sum, tab[ctx->vrq]);
         }
 
         x += split;