X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fnellymoserdec.c;h=8d9af5fff64372a435042510f3d6404a91380c52;hb=dcc39ee10e82833ce24aa57926c00ffeb1948198;hp=08cc4ab15b7444a71343ecfa7101b9b310775175;hpb=e034cc6c60c77dce390b1ac31141b1862bdf8999;p=ffmpeg

diff --git a/libavcodec/nellymoserdec.c b/libavcodec/nellymoserdec.c
index 08cc4ab15b7..8d9af5fff64 100644
--- a/libavcodec/nellymoserdec.c
+++ b/libavcodec/nellymoserdec.c
@@ -35,23 +35,20 @@
 #include "libavutil/float_dsp.h"
 #include "libavutil/lfg.h"
 #include "libavutil/random_seed.h"
+
+#define BITSTREAM_READER_LE
 #include "avcodec.h"
-#include "dsputil.h"
+#include "bitstream.h"
 #include "fft.h"
-#include "fmtconvert.h"
 #include "internal.h"
 #include "nellymoser.h"
 #include "sinewin.h"
 
-#define BITSTREAM_READER_LE
-#include "get_bits.h"
-
 
 typedef struct NellyMoserDecodeContext {
     AVCodecContext* avctx;
-    AVFrame         frame;
     AVLFG           random_state;
-    GetBitContext   gb;
+    BitstreamContext bc;
     float           scale_bias;
     AVFloatDSPContext fdsp;
     FFTContext      imdct_ctx;
@@ -70,14 +67,14 @@ static void nelly_decode_block(NellyMoserDecodeContext *s,
     int bits[NELLY_BUF_LEN];
     unsigned char v;
 
-    init_get_bits(&s->gb, block, NELLY_BLOCK_LEN * 8);
+    bitstream_init8(&s->bc, block, NELLY_BLOCK_LEN);
 
     bptr = buf;
     pptr = pows;
-    val = ff_nelly_init_table[get_bits(&s->gb, 6)];
+    val = ff_nelly_init_table[bitstream_read(&s->bc, 6)];
     for (i=0 ; i<NELLY_BANDS ; i++) {
         if (i > 0)
-            val += ff_nelly_delta_table[get_bits(&s->gb, 5)];
+            val += ff_nelly_delta_table[bitstream_read(&s->bc, 5)];
         pval = -pow(2, val/2048) * s->scale_bias;
         for (j = 0; j < ff_nelly_band_sizes_table[i]; j++) {
             *bptr++ = val;
@@ -91,8 +88,8 @@ static void nelly_decode_block(NellyMoserDecodeContext *s,
     for (i = 0; i < 2; i++) {
         aptr = audio + i * NELLY_BUF_LEN;
 
-        init_get_bits(&s->gb, block, NELLY_BLOCK_LEN * 8);
-        skip_bits_long(&s->gb, NELLY_HEADER_BITS + i*NELLY_DETAIL_BITS);
+        bitstream_init8(&s->bc, block, NELLY_BLOCK_LEN);
+        bitstream_skip(&s->bc, NELLY_HEADER_BITS + i * NELLY_DETAIL_BITS);
 
         for (j = 0; j < NELLY_FILL_LEN; j++) {
             if (bits[j] <= 0) {
@@ -100,7 +97,7 @@ static void nelly_decode_block(NellyMoserDecodeContext *s,
                 if (av_lfg_get(&s->random_state) & 1)
                     aptr[j] *= -1.0;
             } else {
-                v = get_bits(&s->gb, bits[j]);
+                v = bitstream_read(&s->bc, bits[j]);
                 aptr[j] = ff_nelly_dequantization_table[(1<<bits[j])-1+v]*pows[j];
             }
         }
@@ -124,7 +121,7 @@ static av_cold int decode_init(AVCodecContext * avctx) {
     av_lfg_init(&s->random_state, 0);
     ff_mdct_init(&s->imdct_ctx, 8, 1, 1.0);
 
-    avpriv_float_dsp_init(&s->fdsp, avctx->flags & CODEC_FLAG_BITEXACT);
+    avpriv_float_dsp_init(&s->fdsp, avctx->flags & AV_CODEC_FLAG_BITEXACT);
 
     s->scale_bias = 1.0/(32768*8);
     avctx->sample_fmt = AV_SAMPLE_FMT_FLT;
@@ -136,15 +133,13 @@ static av_cold int decode_init(AVCodecContext * avctx) {
     avctx->channels       = 1;
     avctx->channel_layout = AV_CH_LAYOUT_MONO;
 
-    avcodec_get_frame_defaults(&s->frame);
-    avctx->coded_frame = &s->frame;
-
     return 0;
 }
 
 static int decode_tag(AVCodecContext *avctx, void *data,
                       int *got_frame_ptr, AVPacket *avpkt)
 {
+    AVFrame *frame     = data;
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
     NellyMoserDecodeContext *s = avctx->priv_data;
@@ -169,12 +164,12 @@ static int decode_tag(AVCodecContext *avctx, void *data,
      */
 
     /* get output buffer */
-    s->frame.nb_samples = NELLY_SAMPLES * blocks;
-    if ((ret = ff_get_buffer(avctx, &s->frame)) < 0) {
+    frame->nb_samples = NELLY_SAMPLES * blocks;
+    if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
         return ret;
     }
-    samples_flt = (float   *)s->frame.data[0];
+    samples_flt = (float *)frame->data[0];
 
     for (i=0 ; i<blocks ; i++) {
         nelly_decode_block(s, buf, samples_flt);
@@ -182,8 +177,7 @@ static int decode_tag(AVCodecContext *avctx, void *data,
         buf += NELLY_BLOCK_LEN;
     }
 
-    *got_frame_ptr   = 1;
-    *(AVFrame *)data = s->frame;
+    *got_frame_ptr = 1;
 
     return buf_size;
 }
@@ -198,14 +192,14 @@ static av_cold int decode_end(AVCodecContext * avctx) {
 
 AVCodec ff_nellymoser_decoder = {
     .name           = "nellymoser",
+    .long_name      = NULL_IF_CONFIG_SMALL("Nellymoser Asao"),
     .type           = AVMEDIA_TYPE_AUDIO,
     .id             = AV_CODEC_ID_NELLYMOSER,
     .priv_data_size = sizeof(NellyMoserDecodeContext),
     .init           = decode_init,
     .close          = decode_end,
     .decode         = decode_tag,
-    .capabilities   = CODEC_CAP_DR1 | CODEC_CAP_PARAM_CHANGE,
-    .long_name      = NULL_IF_CONFIG_SMALL("Nellymoser Asao"),
+    .capabilities   = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_PARAM_CHANGE,
     .sample_fmts    = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLT,
                                                       AV_SAMPLE_FMT_NONE },
 };