avcodec: Constify AVCodecs

[ffmpeg] / libavcodec / msrle.c

diff --git a/libavcodec/msrle.c b/libavcodec/msrle.c
index 1ab8a419851f82ffc8c3f4ae765ff77839590cf9..bbac2a3ffbfe9b6e6f54b84223fbf1da57c46cf3 100644 (file)
--- a/libavcodec/msrle.c
+++ b/libavcodec/msrle.c
@@ -33,6 +33,7 @@
 #include <string.h>
 
 #include "avcodec.h"
+#include "decode.h"
 #include "internal.h"
 #include "msrledec.h"
 #include "libavutil/imgutils.h"
@@ -42,8 +43,6 @@ typedef struct MsrleContext {
     AVFrame *frame;
 
     GetByteContext gb;
-    const unsigned char *buf;
-    int size;
 
     uint32_t pal[256];
 } MsrleContext;
@@ -92,25 +91,15 @@ static int msrle_decode_frame(AVCodecContext *avctx,
     int istride = FFALIGN(avctx->width*avctx->bits_per_coded_sample, 32) / 8;
     int ret;
 
-    s->buf = buf;
-    s->size = buf_size;
-
     if (buf_size < 2) //Minimally a end of picture code should be there
         return AVERROR_INVALIDDATA;
 
-    if ((ret = ff_reget_buffer(avctx, s->frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, s->frame, 0)) < 0)
         return ret;
 
     if (avctx->bits_per_coded_sample > 1 && avctx->bits_per_coded_sample <= 8) {
-        int size;
-        const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, &size);
-
-        if (pal && size == AVPALETTE_SIZE) {
-            s->frame->palette_has_changed = 1;
-            memcpy(s->pal, pal, AVPALETTE_SIZE);
-        } else if (pal) {
-            av_log(avctx, AV_LOG_ERROR, "Palette size %d is wrong\n", size);
-        }
+        s->frame->palette_has_changed = ff_copy_palette(s->pal, avpkt, avctx);
+
         /* make the palette available */
         memcpy(s->frame->data[1], s->pal, AVPALETTE_SIZE);
     }
@@ -153,6 +142,13 @@ static int msrle_decode_frame(AVCodecContext *avctx,
     return buf_size;
 }
 
+static void msrle_decode_flush(AVCodecContext *avctx)
+{
+    MsrleContext *s = avctx->priv_data;
+
+    av_frame_unref(s->frame);
+}
+
 static av_cold int msrle_decode_end(AVCodecContext *avctx)
 {
     MsrleContext *s = avctx->priv_data;
@@ -163,7 +159,7 @@ static av_cold int msrle_decode_end(AVCodecContext *avctx)
     return 0;
 }
 
-AVCodec ff_msrle_decoder = {
+const AVCodec ff_msrle_decoder = {
     .name           = "msrle",
     .long_name      = NULL_IF_CONFIG_SMALL("Microsoft RLE"),
     .type           = AVMEDIA_TYPE_VIDEO,
@@ -172,5 +168,6 @@ AVCodec ff_msrle_decoder = {
     .init           = msrle_decode_init,
     .close          = msrle_decode_end,
     .decode         = msrle_decode_frame,
+    .flush          = msrle_decode_flush,
     .capabilities   = AV_CODEC_CAP_DR1,
 };