Hap decoder and encoder

[ffmpeg] / libavcodec / c93.c

diff --git a/libavcodec/c93.c b/libavcodec/c93.c
index b7205855bb3089dcf584a4b7d7f49e2a96157d75..2729ee8fcbb05390dac077da3fb7a350dc220d70 100644 (file)
--- a/libavcodec/c93.c
+++ b/libavcodec/c93.c
@@ -21,9 +21,10 @@
 
 #include "avcodec.h"
 #include "bytestream.h"
+#include "internal.h"
 
-typedef struct {
-    AVFrame pictures[2];
+typedef struct C93DecoderContext {
+    AVFrame *pictures[2];
     int currentpic;
 } C93DecoderContext;
 
@@ -45,20 +46,28 @@ typedef enum {
 #define C93_HAS_PALETTE 0x01
 #define C93_FIRST_FRAME 0x02
 
-static av_cold int decode_init(AVCodecContext *avctx)
+static av_cold int decode_end(AVCodecContext *avctx)
 {
-    avctx->pix_fmt = AV_PIX_FMT_PAL8;
+    C93DecoderContext * const c93 = avctx->priv_data;
+
+    av_frame_free(&c93->pictures[0]);
+    av_frame_free(&c93->pictures[1]);
+
     return 0;
 }
 
-static av_cold int decode_end(AVCodecContext *avctx)
+static av_cold int decode_init(AVCodecContext *avctx)
 {
-    C93DecoderContext * const c93 = avctx->priv_data;
+    C93DecoderContext *s = avctx->priv_data;
+    avctx->pix_fmt = AV_PIX_FMT_PAL8;
+
+    s->pictures[0] = av_frame_alloc();
+    s->pictures[1] = av_frame_alloc();
+    if (!s->pictures[0] || !s->pictures[1]) {
+        decode_end(avctx);
+        return AVERROR(ENOMEM);
+    }
 
-    if (c93->pictures[0].data[0])
-        avctx->release_buffer(avctx, &c93->pictures[0]);
-    if (c93->pictures[1].data[0])
-        avctx->release_buffer(avctx, &c93->pictures[1]);
     return 0;
 }
 
@@ -118,19 +127,15 @@ static int decode_frame(AVCodecContext *avctx, void *data,
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
     C93DecoderContext * const c93 = avctx->priv_data;
-    AVFrame * const newpic = &c93->pictures[c93->currentpic];
-    AVFrame * const oldpic = &c93->pictures[c93->currentpic^1];
-    AVFrame *picture = data;
+    AVFrame * const newpic = c93->pictures[c93->currentpic];
+    AVFrame * const oldpic = c93->pictures[c93->currentpic^1];
     GetByteContext gb;
     uint8_t *out;
     int stride, ret, i, x, y, b, bt = 0;
 
     c93->currentpic ^= 1;
 
-    newpic->reference = 1;
-    newpic->buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE |
-                         FF_BUFFER_HINTS_REUSABLE | FF_BUFFER_HINTS_READABLE;
-    if ((ret = avctx->reget_buffer(avctx, newpic)) < 0) {
+    if ((ret = ff_reget_buffer(avctx, newpic)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
         return ret;
     }
@@ -239,7 +244,8 @@ static int decode_frame(AVCodecContext *avctx, void *data,
             memcpy(newpic->data[1], oldpic->data[1], 256 * 4);
     }
 
-    *picture = *newpic;
+    if ((ret = av_frame_ref(data, newpic)) < 0)
+        return ret;
     *got_frame = 1;
 
     return buf_size;
@@ -247,6 +253,7 @@ static int decode_frame(AVCodecContext *avctx, void *data,
 
 AVCodec ff_c93_decoder = {
     .name           = "c93",
+    .long_name      = NULL_IF_CONFIG_SMALL("Interplay C93"),
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = AV_CODEC_ID_C93,
     .priv_data_size = sizeof(C93DecoderContext),
@@ -254,5 +261,4 @@ AVCodec ff_c93_decoder = {
     .close          = decode_end,
     .decode         = decode_frame,
     .capabilities   = CODEC_CAP_DR1,
-    .long_name      = NULL_IF_CONFIG_SMALL("Interplay C93"),
 };