Merge remote branch 'qatar/master'

[ffmpeg] / libavcodec / alacenc.c

diff --git a/libavcodec/alacenc.c b/libavcodec/alacenc.c
index d1369c4859a72d96ab5456f2560eb6ad036a8081..9d2865d51eff598011ee348406b15d319dc8c735 100644 (file)
--- a/libavcodec/alacenc.c
+++ b/libavcodec/alacenc.c
@@ -51,11 +51,11 @@ typedef struct RiceContext {
     int rice_modifier;
 } RiceContext;
 
-typedef struct LPCContext {
+typedef struct AlacLPCContext {
     int lpc_order;
     int lpc_coeff[ALAC_MAX_LPC_ORDER+1];
     int lpc_quant;
-} LPCContext;
+} AlacLPCContext;
 
 typedef struct AlacEncodeContext {
     int compression_level;
@@ -69,8 +69,8 @@ typedef struct AlacEncodeContext {
     int interlacing_leftweight;
     PutBitContext pbctx;
     RiceContext rc;
-    LPCContext lpc[MAX_CHANNELS];
-    DSPContext dspctx;
+    AlacLPCContext lpc[MAX_CHANNELS];
+    LPCContext lpc_ctx;
     AVCodecContext *avctx;
 } AlacEncodeContext;
 
@@ -141,7 +141,7 @@ static void calc_predictor_params(AlacEncodeContext *s, int ch)
         s->lpc[ch].lpc_coeff[4] =   80;
         s->lpc[ch].lpc_coeff[5] =  -25;
     } else {
-        opt_order = ff_lpc_calc_coefs(&s->dspctx, s->sample_buf[ch],
+        opt_order = ff_lpc_calc_coefs(&s->lpc_ctx, s->sample_buf[ch],
                                       s->avctx->frame_size,
                                       s->min_prediction_order,
                                       s->max_prediction_order,
@@ -237,7 +237,7 @@ static void alac_stereo_decorrelation(AlacEncodeContext *s)
 static void alac_linear_predictor(AlacEncodeContext *s, int ch)
 {
     int i;
-    LPCContext lpc = s->lpc[ch];
+    AlacLPCContext lpc = s->lpc[ch];
 
     if(lpc.lpc_order == 31) {
         s->predictor_buf[0] = s->sample_buf[ch][0];
@@ -378,6 +378,7 @@ static void write_compressed_frame(AlacEncodeContext *s)
 static av_cold int alac_encode_init(AVCodecContext *avctx)
 {
     AlacEncodeContext *s    = avctx->priv_data;
+    int ret;
     uint8_t *alac_extradata = av_mallocz(ALAC_EXTRADATA_SIZE+1);
 
     avctx->frame_size      = DEFAULT_FRAME_SIZE;
@@ -455,9 +456,10 @@ static av_cold int alac_encode_init(AVCodecContext *avctx)
     avctx->coded_frame->key_frame = 1;
 
     s->avctx = avctx;
-    dsputil_init(&s->dspctx, avctx);
+    ret = ff_lpc_init(&s->lpc_ctx, avctx->frame_size, s->max_prediction_order,
+                      AV_LPC_TYPE_LEVINSON);
 
-    return 0;
+    return ret;
 }
 
 static int alac_encode_frame(AVCodecContext *avctx, uint8_t *frame,
@@ -513,13 +515,15 @@ verbatim:
 
 static av_cold int alac_encode_close(AVCodecContext *avctx)
 {
+    AlacEncodeContext *s = avctx->priv_data;
+    ff_lpc_end(&s->lpc_ctx);
     av_freep(&avctx->extradata);
     avctx->extradata_size = 0;
     av_freep(&avctx->coded_frame);
     return 0;
 }
 
-AVCodec alac_encoder = {
+AVCodec ff_alac_encoder = {
     "alac",
     AVMEDIA_TYPE_AUDIO,
     CODEC_ID_ALAC,