avcodec/opusenc_psy: Remove unused/write-only context members

Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

libavcodec/opusenc_psy.c

@@ -470,12 +470,9 @@ int ff_opus_psy_celt_frame_process(OpusPsyContext *s, CeltFrame *f, int index)
 
     if (f->transient != start_transient_flag) {
         f->blocks = f->transient ? OPUS_BLOCK_SIZE(s->p.framesize)/CELT_OVERLAP : 1;
-        s->redo_analysis = 1;
         return 1;
     }
 
-    s->redo_analysis = 0;
-
     return 0;
 }
 
@@ -509,7 +506,6 @@ void ff_opus_psy_postencode_update(OpusPsyContext *s, CeltFrame *f)
 
     s->avg_is_band /= (s->p.frames + 1);
 
-    s->cs_num = 0;
     s->steps_to_process = 0;
     s->buffered_steps -= steps_out;
     s->total_packets_out += s->p.frames;
@@ -521,7 +517,6 @@ av_cold int ff_opus_psy_init(OpusPsyContext *s, AVCodecContext *avctx,
 {
     int i, ch, ret;
 
-    s->redo_analysis = 0;
     s->lambda = 1.0f;
     s->options = options;
     s->avctx = avctx;

libavcodec/opusenc_psy.h

@@ -49,20 +49,12 @@ typedef struct OpusBandExcitation {
     float excitation_init;
 } OpusBandExcitation;
 
-typedef struct PsyChain {
-    int start;
-    int end;
-} PsyChain;
-
 typedef struct OpusPsyContext {
     AVCodecContext *avctx;
     AVFloatDSPContext *dsp;
     struct FFBufQueue *bufqueue;
     OpusEncOptions *options;
 
-    PsyChain cs[128];
-    int cs_num;
-
     OpusBandExcitation ex[OPUS_MAX_CHANNELS][CELT_MAX_BANDS];
     FFBesselFilter bfilter_lo[OPUS_MAX_CHANNELS][CELT_MAX_BANDS];
     FFBesselFilter bfilter_hi[OPUS_MAX_CHANNELS][CELT_MAX_BANDS];
@@ -78,15 +70,12 @@ typedef struct OpusPsyContext {
     DECLARE_ALIGNED(32, float, scratch)[2048];
 
     /* Stats */
-    float rc_waste;
     float avg_is_band;
     int64_t dual_stereo_used;
     int64_t total_packets_out;
 
     /* State */
-    FFBesselFilter lambda_lp;
     OpusPacketInfo p;
-    int redo_analysis;
     int buffered_steps;
     int steps_to_process;
     int eof;