dv: Mark internal frame reference as const

[ffmpeg] / libavcodec / msrle.c

diff --git a/libavcodec/msrle.c b/libavcodec/msrle.c
index 7cd8823682c38b0a598521571bfe5d71a2f0508e..a1adeba949d3f150cb7163cb3235465bf8c4fd77 100644 (file)
--- a/libavcodec/msrle.c
+++ b/libavcodec/msrle.c
@@ -33,12 +33,12 @@
 #include <string.h>
 
 #include "avcodec.h"
-#include "dsputil.h"
+#include "internal.h"
 #include "msrledec.h"
 
 typedef struct MsrleContext {
     AVCodecContext *avctx;
-    AVFrame frame;
+    AVFrame *frame;
 
     GetByteContext gb;
     const unsigned char *buf;
@@ -63,10 +63,12 @@ static av_cold int msrle_decode_init(AVCodecContext *avctx)
         break;
     default:
         av_log(avctx, AV_LOG_ERROR, "unsupported bits per sample\n");
-        return -1;
+        return AVERROR_INVALIDDATA;
     }
 
-    s->frame.data[0] = NULL;
+    s->frame = av_frame_alloc();
+    if (!s->frame)
+        return AVERROR(ENOMEM);
 
     return 0;
 }
@@ -79,33 +81,32 @@ static int msrle_decode_frame(AVCodecContext *avctx,
     int buf_size = avpkt->size;
     MsrleContext *s = avctx->priv_data;
     int istride = FFALIGN(avctx->width*avctx->bits_per_coded_sample, 32) / 8;
+    int ret;
 
     s->buf = buf;
     s->size = buf_size;
 
-    s->frame.reference = 1;
-    s->frame.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE;
-    if (avctx->reget_buffer(avctx, &s->frame)) {
+    if ((ret = ff_reget_buffer(avctx, s->frame)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
-        return -1;
+        return ret;
     }
 
     if (avctx->bits_per_coded_sample <= 8) {
         const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
 
         if (pal) {
-            s->frame.palette_has_changed = 1;
+            s->frame->palette_has_changed = 1;
             memcpy(s->pal, pal, AVPALETTE_SIZE);
         }
 
         /* make the palette available */
-        memcpy(s->frame.data[1], s->pal, AVPALETTE_SIZE);
+        memcpy(s->frame->data[1], s->pal, AVPALETTE_SIZE);
     }
 
     /* FIXME how to correctly detect RLE ??? */
     if (avctx->height * istride == avpkt->size) { /* assume uncompressed */
         int linesize = avctx->width * avctx->bits_per_coded_sample / 8;
-        uint8_t *ptr = s->frame.data[0];
+        uint8_t *ptr = s->frame->data[0];
         uint8_t *buf = avpkt->data + (avctx->height-1)*istride;
         int i, j;
 
@@ -121,15 +122,17 @@ static int msrle_decode_frame(AVCodecContext *avctx,
                 memcpy(ptr, buf, linesize);
             }
             buf -= istride;
-            ptr += s->frame.linesize[0];
+            ptr += s->frame->linesize[0];
         }
     } else {
         bytestream2_init(&s->gb, buf, buf_size);
-        ff_msrle_decode(avctx, (AVPicture*)&s->frame, avctx->bits_per_coded_sample, &s->gb);
+        ff_msrle_decode(avctx, (AVPicture*)s->frame, avctx->bits_per_coded_sample, &s->gb);
     }
 
+    if ((ret = av_frame_ref(data, s->frame)) < 0)
+        return ret;
+
     *got_frame      = 1;
-    *(AVFrame*)data = s->frame;
 
     /* report that the buffer was completely consumed */
     return buf_size;
@@ -140,20 +143,19 @@ static av_cold int msrle_decode_end(AVCodecContext *avctx)
     MsrleContext *s = avctx->priv_data;
 
     /* release the last frame */
-    if (s->frame.data[0])
-        avctx->release_buffer(avctx, &s->frame);
+    av_frame_free(&s->frame);
 
     return 0;
 }
 
 AVCodec ff_msrle_decoder = {
     .name           = "msrle",
+    .long_name      = NULL_IF_CONFIG_SMALL("Microsoft RLE"),
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = AV_CODEC_ID_MSRLE,
     .priv_data_size = sizeof(MsrleContext),
     .init           = msrle_decode_init,
     .close          = msrle_decode_end,
     .decode         = msrle_decode_frame,
-    .capabilities   = CODEC_CAP_DR1,
-    .long_name      = NULL_IF_CONFIG_SMALL("Microsoft RLE"),
+    .capabilities   = AV_CODEC_CAP_DR1,
 };