libxvid: Drop PPC-specific CPU detection hack

[ffmpeg] / libavcodec / tmv.c

diff --git a/libavcodec/tmv.c b/libavcodec/tmv.c
index 827d8a618371a5fc85bf106dd22eb45d4fbbff80..f04a5f5fa157531711250d0c5b3ff66c53499e70 100644 (file)
--- a/libavcodec/tmv.c
+++ b/libavcodec/tmv.c
@@ -2,109 +2,96 @@
  * 8088flex TMV video decoder
  * Copyright (c) 2009 Daniel Verkamp <daniel at drv.nu>
  *
- * 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
  * 8088flex TMV video decoder
- * @file libavcodec/tmv.c
  * @author Daniel Verkamp
- * @sa http://www.oldskool.org/pc/8088_Corruption
+ * @see http://www.oldskool.org/pc/8088_Corruption
  */
 
+#include <string.h>
+
 #include "avcodec.h"
+#include "internal.h"
+#include "libavutil/internal.h"
 
 #include "cga_data.h"
 
-typedef struct TMVContext {
-    AVFrame pic;
-} TMVContext;
-
 static int tmv_decode_frame(AVCodecContext *avctx, void *data,
-                            int *data_size, AVPacket *avpkt)
+                            int *got_frame, AVPacket *avpkt)
 {
-    TMVContext *tmv    = avctx->priv_data;
+    AVFrame *frame     = data;
     const uint8_t *src = avpkt->data;
-    uint8_t *dst, *dst_char;
+    uint8_t *dst;
     unsigned char_cols = avctx->width >> 3;
     unsigned char_rows = avctx->height >> 3;
-    unsigned x, y, mask, char_y, fg, bg, c;
-
-    if (tmv->pic.data[0])
-        avctx->release_buffer(avctx, &tmv->pic);
+    unsigned x, y, fg, bg, c;
+    int ret;
 
-    if (avctx->get_buffer(avctx, &tmv->pic) < 0) {
+    if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
-        return -1;
+        return ret;
     }
 
     if (avpkt->size < 2*char_rows*char_cols) {
         av_log(avctx, AV_LOG_ERROR,
                "Input buffer too small, truncated sample?\n");
-        *data_size = 0;
-        return -1;
+        *got_frame = 0;
+        return AVERROR_INVALIDDATA;
     }
 
-    tmv->pic.pict_type = FF_I_TYPE;
-    tmv->pic.key_frame = 1;
-    dst                = tmv->pic.data[0];
+    frame->pict_type = AV_PICTURE_TYPE_I;
+    frame->key_frame = 1;
+    dst              = frame->data[0];
 
-    tmv->pic.palette_has_changed = 1;
-    memcpy(tmv->pic.data[1], ff_cga_palette, 16 * 4);
+    frame->palette_has_changed = 1;
+    memcpy(frame->data[1], ff_cga_palette, 16 * 4);
 
     for (y = 0; y < char_rows; y++) {
         for (x = 0; x < char_cols; x++) {
-            c  = *src++ * 8;
+            c  = *src++;
             bg = *src  >> 4;
             fg = *src++ & 0xF;
-
-            dst_char = dst + x * 8;
-            for (char_y = 0; char_y < 8; char_y++) {
-                for (mask = 0x80; mask; mask >>= 1) {
-                    *dst_char++ = ff_cga_font[c + char_y] & mask ? fg : bg;
-                }
-                dst_char += tmv->pic.linesize[0] - 8;
-            }
+            ff_draw_pc_font(dst + x * 8, frame->linesize[0],
+                            ff_cga_font, 8, c, fg, bg);
         }
-        dst += tmv->pic.linesize[0] * 8;
+        dst += frame->linesize[0] * 8;
     }
 
-    *data_size = sizeof(AVFrame);
-    *(AVFrame *)data = tmv->pic;
+    *got_frame = 1;
+
     return avpkt->size;
 }
 
-static av_cold int tmv_decode_close(AVCodecContext *avctx)
+static av_cold int tmv_decode_init(AVCodecContext *avctx)
 {
-    TMVContext *tmv = avctx->priv_data;
-
-    if (tmv->pic.data[0])
-        avctx->release_buffer(avctx, &tmv->pic);
-
+    avctx->pix_fmt = AV_PIX_FMT_PAL8;
     return 0;
 }
 
-AVCodec tmv_decoder = {
+AVCodec ff_tmv_decoder = {
     .name           = "tmv",
+    .long_name      = NULL_IF_CONFIG_SMALL("8088flex TMV"),
     .type           = AVMEDIA_TYPE_VIDEO,
-    .id             = CODEC_ID_TMV,
-    .priv_data_size = sizeof(TMVContext),
-    .close          = tmv_decode_close,
+    .id             = AV_CODEC_ID_TMV,
+    .init           = tmv_decode_init,
     .decode         = tmv_decode_frame,
     .capabilities   = CODEC_CAP_DR1,
-    .long_name      = NULL_IF_CONFIG_SMALL("8088flex TMV"),
 };