bsd: use number of logical CPUs as automatic thread count

[ffmpeg] / libavcodec / kmvc.c

diff --git a/libavcodec/kmvc.c b/libavcodec/kmvc.c
index 573f10c80d020b7e887a993f9c8382564bdb46f0..07ca19479b60e6c3883f5146151bbcfa2dda07b0 100644 (file)
--- a/libavcodec/kmvc.c
+++ b/libavcodec/kmvc.c
@@ -2,26 +2,25 @@
  * KMVC decoder
  * Copyright (c) 2006 Konstantin Shishkov
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
  */
 
 /**
- * @file kmvc.c
+ * @file
  * Karl Morton's Video Codec decoder
  */
 
@@ -29,6 +28,7 @@
 #include <stdlib.h>
 
 #include "avcodec.h"
+#include "bytestream.h"
 
 #define KMVC_KEYFRAME 0x80
 #define KMVC_PALETTE  0x40
@@ -67,7 +67,7 @@ typedef struct BitBuf {
     } \
 }
 
-static void kmvc_decode_intra_8x8(KmvcContext * ctx, uint8_t * src, int w, int h)
+static void kmvc_decode_intra_8x8(KmvcContext * ctx, const uint8_t * src, int w, int h)
 {
     BitBuf bb;
     int res, val;
@@ -142,7 +142,7 @@ static void kmvc_decode_intra_8x8(KmvcContext * ctx, uint8_t * src, int w, int h
         }
 }
 
-static void kmvc_decode_inter_8x8(KmvcContext * ctx, uint8_t * src, int w, int h)
+static void kmvc_decode_inter_8x8(KmvcContext * ctx, const uint8_t * src, int w, int h)
 {
     BitBuf bb;
     int res, val;
@@ -224,14 +224,16 @@ static void kmvc_decode_inter_8x8(KmvcContext * ctx, uint8_t * src, int w, int h
         }
 }
 
-static int decode_frame(AVCodecContext * avctx, void *data, int *data_size, uint8_t * buf,
-                        int buf_size)
+static int decode_frame(AVCodecContext * avctx, void *data, int *data_size, AVPacket *avpkt)
 {
+    const uint8_t *buf = avpkt->data;
+    int buf_size = avpkt->size;
     KmvcContext *const ctx = avctx->priv_data;
     uint8_t *out, *src;
     int i;
     int header;
     int blocksize;
+    const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
 
     if (ctx->pic.data[0])
         avctx->release_buffer(avctx, &ctx->pic);
@@ -249,7 +251,7 @@ static int decode_frame(AVCodecContext * avctx, void *data, int *data_size, uint
     if (buf[0] == 127) {
         buf += 3;
         for (i = 0; i < 127; i++) {
-            ctx->pal[i + (header & 0x81)] = (buf[0] << 16) | (buf[1] << 8) | buf[2];
+            ctx->pal[i + (header & 0x81)] = AV_RB24(buf);
             buf += 4;
         }
         buf -= 127 * 4 + 3;
@@ -257,28 +259,25 @@ static int decode_frame(AVCodecContext * avctx, void *data, int *data_size, uint
 
     if (header & KMVC_KEYFRAME) {
         ctx->pic.key_frame = 1;
-        ctx->pic.pict_type = FF_I_TYPE;
+        ctx->pic.pict_type = AV_PICTURE_TYPE_I;
     } else {
         ctx->pic.key_frame = 0;
-        ctx->pic.pict_type = FF_P_TYPE;
-    }
-
-    /* if palette has been changed, copy it from palctrl */
-    if (ctx->avctx->palctrl && ctx->avctx->palctrl->palette_changed) {
-        memcpy(ctx->pal, ctx->avctx->palctrl->palette, AVPALETTE_SIZE);
-        ctx->setpal = 1;
-        ctx->avctx->palctrl->palette_changed = 0;
+        ctx->pic.pict_type = AV_PICTURE_TYPE_P;
     }
 
     if (header & KMVC_PALETTE) {
         ctx->pic.palette_has_changed = 1;
         // palette starts from index 1 and has 127 entries
         for (i = 1; i <= ctx->palsize; i++) {
-            ctx->pal[i] = (buf[0] << 16) | (buf[1] << 8) | buf[2];
-            buf += 3;
+            ctx->pal[i] = bytestream_get_be24(&buf);
         }
     }
 
+    if (pal) {
+        ctx->pic.palette_has_changed = 1;
+        memcpy(ctx->pal, pal, AVPALETTE_SIZE);
+    }
+
     if (ctx->setpal) {
         ctx->setpal = 0;
         ctx->pic.palette_has_changed = 1;
@@ -339,15 +338,13 @@ static int decode_frame(AVCodecContext * avctx, void *data, int *data_size, uint
 /*
  * Init kmvc decoder
  */
-static int decode_init(AVCodecContext * avctx)
+static av_cold int decode_init(AVCodecContext * avctx)
 {
     KmvcContext *const c = avctx->priv_data;
     int i;
 
     c->avctx = avctx;
 
-    c->pic.data[0] = NULL;
-
     if (avctx->width > 320 || avctx->height > 200) {
         av_log(avctx, AV_LOG_ERROR, "KMVC supports frames <= 320x200\n");
         return -1;
@@ -376,9 +373,6 @@ static int decode_init(AVCodecContext * avctx)
             src += 4;
         }
         c->setpal = 1;
-        if (c->avctx->palctrl) {
-            c->avctx->palctrl->palette_changed = 0;
-        }
     }
 
     avctx->pix_fmt = PIX_FMT_PAL8;
@@ -391,7 +385,7 @@ static int decode_init(AVCodecContext * avctx)
 /*
  * Uninit kmvc decoder
  */
-static int decode_end(AVCodecContext * avctx)
+static av_cold int decode_end(AVCodecContext * avctx)
 {
     KmvcContext *const c = avctx->priv_data;
 
@@ -403,13 +397,14 @@ static int decode_end(AVCodecContext * avctx)
     return 0;
 }
 
-AVCodec kmvc_decoder = {
-    "kmvc",
-    CODEC_TYPE_VIDEO,
-    CODEC_ID_KMVC,
-    sizeof(KmvcContext),
-    decode_init,
-    NULL,
-    decode_end,
-    decode_frame
+AVCodec ff_kmvc_decoder = {
+    .name           = "kmvc",
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = CODEC_ID_KMVC,
+    .priv_data_size = sizeof(KmvcContext),
+    .init           = decode_init,
+    .close          = decode_end,
+    .decode         = decode_frame,
+    .capabilities   = CODEC_CAP_DR1,
+    .long_name = NULL_IF_CONFIG_SMALL("Karl Morton's video codec"),
 };