From f7813a5324be39d13ab536c245d15dfc602a7849 Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@eclectronics.org>
Date: Sun, 29 Dec 2013 12:19:38 +0000
Subject: basic type mechanism working

---
 ffmpeg/libavcodec/msrle.c | 26 ++++++++++++++------------
 1 file changed, 14 insertions(+), 12 deletions(-)

(limited to 'ffmpeg/libavcodec/msrle.c')

diff --git a/ffmpeg/libavcodec/msrle.c b/ffmpeg/libavcodec/msrle.c
index 674e586..7ae4b08 100644
--- a/ffmpeg/libavcodec/msrle.c
+++ b/ffmpeg/libavcodec/msrle.c
@@ -38,7 +38,7 @@
 
 typedef struct MsrleContext {
     AVCodecContext *avctx;
-    AVFrame frame;
+    AVFrame *frame;
 
     GetByteContext gb;
     const unsigned char *buf;
@@ -54,7 +54,7 @@ static av_cold int msrle_decode_init(AVCodecContext *avctx)
 
     s->avctx = avctx;
 
-    switch (avctx->bits_per_coded_sample) {
+    switch (avctx->bits_per_coded_sample & 0x1f) {
     case 1:
         avctx->pix_fmt = AV_PIX_FMT_MONOWHITE;
         break;
@@ -70,7 +70,9 @@ static av_cold int msrle_decode_init(AVCodecContext *avctx)
         return AVERROR_INVALIDDATA;
     }
 
-    avcodec_get_frame_defaults(&s->frame);
+    s->frame = av_frame_alloc();
+    if (!s->frame)
+        return AVERROR(ENOMEM);
 
     if (avctx->extradata_size >= 4)
         for (i = 0; i < FFMIN(avctx->extradata_size, AVPALETTE_SIZE)/4; i++)
@@ -92,24 +94,24 @@ static int msrle_decode_frame(AVCodecContext *avctx,
     s->buf = buf;
     s->size = buf_size;
 
-    if ((ret = ff_reget_buffer(avctx, &s->frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, s->frame)) < 0)
         return ret;
 
     if (avctx->bits_per_coded_sample > 1 && 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 + 7) / 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;
 
@@ -125,14 +127,14 @@ 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)
+    if ((ret = av_frame_ref(data, s->frame)) < 0)
         return ret;
 
     *got_frame      = 1;
@@ -146,13 +148,14 @@ static av_cold int msrle_decode_end(AVCodecContext *avctx)
     MsrleContext *s = avctx->priv_data;
 
     /* release the last frame */
-    av_frame_unref(&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),
@@ -160,5 +163,4 @@ AVCodec ff_msrle_decoder = {
     .close          = msrle_decode_end,
     .decode         = msrle_decode_frame,
     .capabilities   = CODEC_CAP_DR1,
-    .long_name      = NULL_IF_CONFIG_SMALL("Microsoft RLE"),
 };
-- 
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