hevc: reduce variable scope

[ffmpeg] / libavcodec / mpc8.c

diff --git a/libavcodec/mpc8.c b/libavcodec/mpc8.c
index f43cb4ead632e61e90a1a23b64a2fc16942e5de7..ee05a938b653fe5589dafa7135494ddd30fc054b 100644 (file)
--- a/libavcodec/mpc8.c
+++ b/libavcodec/mpc8.c
@@ -29,7 +29,7 @@
 #include "libavutil/lfg.h"
 #include "avcodec.h"
 #include "get_bits.h"
-#include "dsputil.h"
+#include "internal.h"
 #include "mpegaudiodsp.h"
 
 #include "mpc.h"
@@ -118,7 +118,6 @@ static av_cold int mpc8_decode_init(AVCodecContext * avctx)
     }
     memset(c->oldDSCF, 0, sizeof(c->oldDSCF));
     av_lfg_init(&c->rnd, 0xDEADBEEF);
-    ff_dsputil_init(&c->dsp, avctx);
     ff_mpadsp_init(&c->mpadsp);
 
     ff_mpc_init();
@@ -129,7 +128,7 @@ static av_cold int mpc8_decode_init(AVCodecContext * avctx)
     c->maxbands = get_bits(&gb, 5) + 1;
     channels = get_bits(&gb, 4) + 1;
     if (channels > 2) {
-        av_log_missing_feature(avctx, "Multichannel MPC SV8", 1);
+        avpriv_request_sample(avctx, "Multichannel MPC SV8");
         return AVERROR_PATCHWELCOME;
     }
     c->MSS = get_bits1(&gb);
@@ -229,15 +228,13 @@ static av_cold int mpc8_decode_init(AVCodecContext * avctx)
     }
     vlc_initialized = 1;
 
-    avcodec_get_frame_defaults(&c->frame);
-    avctx->coded_frame = &c->frame;
-
     return 0;
 }
 
 static int mpc8_decode_frame(AVCodecContext * avctx, void *data,
                              int *got_frame_ptr, AVPacket *avpkt)
 {
+    AVFrame *frame     = data;
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
     MPCContext *c = avctx->priv_data;
@@ -249,8 +246,8 @@ static int mpc8_decode_frame(AVCodecContext * avctx, void *data,
     int last[2];
 
     /* get output buffer */
-    c->frame.nb_samples = MPC_FRAME_SIZE;
-    if ((res = avctx->get_buffer(avctx, &c->frame)) < 0) {
+    frame->nb_samples = MPC_FRAME_SIZE;
+    if ((res = ff_get_buffer(avctx, frame, 0)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
         return res;
     }
@@ -406,7 +403,7 @@ static int mpc8_decode_frame(AVCodecContext * avctx, void *data,
     }
 
     ff_mpc_dequantize_and_synth(c, maxband - 1,
-                                (int16_t **)c->frame.extended_data,
+                                (int16_t **)frame->extended_data,
                                 avctx->channels);
 
     c->cur_frame++;
@@ -417,8 +414,7 @@ static int mpc8_decode_frame(AVCodecContext * avctx, void *data,
     if(c->cur_frame >= c->frames)
         c->cur_frame = 0;
 
-    *got_frame_ptr   = 1;
-    *(AVFrame *)data = c->frame;
+    *got_frame_ptr = 1;
 
     return c->cur_frame ? c->last_bits_used >> 3 : buf_size;
 }
@@ -431,6 +427,7 @@ static av_cold void mpc8_decode_flush(AVCodecContext *avctx)
 
 AVCodec ff_mpc8_decoder = {
     .name           = "mpc8",
+    .long_name      = NULL_IF_CONFIG_SMALL("Musepack SV8"),
     .type           = AVMEDIA_TYPE_AUDIO,
     .id             = AV_CODEC_ID_MUSEPACK8,
     .priv_data_size = sizeof(MPCContext),
@@ -438,7 +435,6 @@ AVCodec ff_mpc8_decoder = {
     .decode         = mpc8_decode_frame,
     .flush          = mpc8_decode_flush,
     .capabilities   = CODEC_CAP_DR1,
-    .long_name      = NULL_IF_CONFIG_SMALL("Musepack SV8"),
     .sample_fmts    = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_S16P,
                                                       AV_SAMPLE_FMT_NONE },
 };