lzf: update pointer p after realloc

[ffmpeg] / libavcodec / tmv.c

diff --git a/libavcodec/tmv.c b/libavcodec/tmv.c
index 80f3ac9cbcf8b90b3b9c91674bc7153ded88df4e..a9fcdf3b28dde18f074f13d97a2e7928bb5a8084 100644 (file)
--- a/libavcodec/tmv.c
+++ b/libavcodec/tmv.c
@@ -20,85 +20,78 @@
  */
 
 /**
- * 8088flex TMV video decoder
  * @file
+ * 8088flex TMV video decoder
  * @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;
     unsigned char_cols = avctx->width >> 3;
     unsigned char_rows = avctx->height >> 3;
     unsigned x, y, fg, bg, c;
+    int ret;
 
-    if (tmv->pic.data[0])
-        avctx->release_buffer(avctx, &tmv->pic);
-
-    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 = AV_PICTURE_TYPE_I;
-    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++;
             bg = *src  >> 4;
             fg = *src++ & 0xF;
-            ff_draw_pc_font(dst + x * 8, tmv->pic.linesize[0],
+            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 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"),
+    .capabilities   = AV_CODEC_CAP_DR1,
 };