basic type mechanism working

1 files changed, 29 insertions, 27 deletions

diff --git a/ffmpeg/libavcodec/qpeg.c b/ffmpeg/libavcodec/qpeg.c
index 6015b7f..94cb5bd 100644
--- a/ffmpeg/libavcodec/qpeg.c
+++ b/ffmpeg/libavcodec/qpeg.c
@@ -30,7 +30,7 @@
 
 typedef struct QpegContext{
     AVCodecContext *avctx;
-    AVFrame pic, ref;
+    AVFrame *pic, *ref;
     uint32_t pal[256];
     GetByteContext buffer;
 } QpegContext;
@@ -110,7 +110,7 @@ static const int qpeg_table_w[16] =
  { 0x00, 0x20, 0x18, 0x08, 0x18, 0x10, 0x20, 0x10, 0x08, 0x10, 0x20, 0x20, 0x08, 0x10, 0x18, 0x04};
 
 /* Decodes delta frames */
-static void qpeg_decode_inter(QpegContext *qctx, uint8_t *dst,
+static void av_noinline qpeg_decode_inter(QpegContext *qctx, uint8_t *dst,
                               int stride, int width, int height,
                               int delta, const uint8_t *ctable,
                               uint8_t *refdata)
@@ -193,7 +193,7 @@ static void qpeg_decode_inter(QpegContext *qctx, uint8_t *dst,
                     filled = 0;
                     dst -= stride;
                     height--;
-                    if(height < 0)
+                    if (height < 0)
                         break;
                 }
             }
@@ -209,7 +209,7 @@ static void qpeg_decode_inter(QpegContext *qctx, uint8_t *dst,
                     filled = 0;
                     dst -= stride;
                     height--;
-                    if(height < 0)
+                    if (height < 0)
                         break;
                 }
             }
@@ -255,8 +255,8 @@ static int decode_frame(AVCodecContext *avctx,
 {
     uint8_t ctable[128];
     QpegContext * const a = avctx->priv_data;
-    AVFrame *  p = &a->pic;
-    AVFrame * ref= &a->ref;
+    AVFrame * const p = a->pic;
+    AVFrame * const ref = a->ref;
     uint8_t* outdata;
     int delta, ret;
     const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
@@ -273,26 +273,26 @@ static int decode_frame(AVCodecContext *avctx,
 
     if ((ret = ff_get_buffer(avctx, p, AV_GET_BUFFER_FLAG_REF)) < 0)
         return ret;
-    outdata = a->pic.data[0];
+    outdata = p->data[0];
     bytestream2_skip(&a->buffer, 4);
     bytestream2_get_buffer(&a->buffer, ctable, 128);
     bytestream2_skip(&a->buffer, 1);
 
     delta = bytestream2_get_byte(&a->buffer);
     if(delta == 0x10) {
-        qpeg_decode_intra(a, outdata, a->pic.linesize[0], avctx->width, avctx->height);
+        qpeg_decode_intra(a, outdata, p->linesize[0], avctx->width, avctx->height);
     } else {
-        qpeg_decode_inter(a, outdata, a->pic.linesize[0], avctx->width, avctx->height, delta, ctable, a->ref.data[0]);
+        qpeg_decode_inter(a, outdata, p->linesize[0], avctx->width, avctx->height, delta, ctable, ref->data[0]);
     }
 
     /* make the palette available on the way out */
     if (pal) {
-        a->pic.palette_has_changed = 1;
+        p->palette_has_changed = 1;
         memcpy(a->pal, pal, AVPALETTE_SIZE);
     }
-    memcpy(a->pic.data[1], a->pal, AVPALETTE_SIZE);
+    memcpy(p->data[1], a->pal, AVPALETTE_SIZE);
 
-    if ((ret = av_frame_ref(data, &a->pic)) < 0)
+    if ((ret = av_frame_ref(data, p)) < 0)
         return ret;
 
     *got_frame      = 1;
@@ -312,34 +312,37 @@ static void decode_flush(AVCodecContext *avctx){
         a->pal[i] = 0xFFU<<24 | AV_RL32(pal_src+4*i);
 }
 
-static av_cold int decode_init(AVCodecContext *avctx){
+static av_cold int decode_end(AVCodecContext *avctx)
+{
     QpegContext * const a = avctx->priv_data;
 
-    avcodec_get_frame_defaults(&a->pic);
-    avcodec_get_frame_defaults(&a->ref);
-    a->avctx = avctx;
-    avctx->pix_fmt= AV_PIX_FMT_PAL8;
-
-    decode_flush(avctx);
-
-    avcodec_get_frame_defaults(&a->pic);
+    av_frame_free(&a->pic);
+    av_frame_free(&a->ref);
 
     return 0;
 }
 
-static av_cold int decode_end(AVCodecContext *avctx){
+static av_cold int decode_init(AVCodecContext *avctx){
     QpegContext * const a = avctx->priv_data;
-    AVFrame * const p = &a->pic;
-    AVFrame * const ref= &a->ref;
 
-    av_frame_unref(p);
-    av_frame_unref(ref);
+    a->avctx = avctx;
+    avctx->pix_fmt= AV_PIX_FMT_PAL8;
+
+    decode_flush(avctx);
+
+    a->pic = av_frame_alloc();
+    a->ref = av_frame_alloc();
+    if (!a->pic || !a->ref) {
+        decode_end(avctx);
+        return AVERROR(ENOMEM);
+    }
 
     return 0;
 }
 
 AVCodec ff_qpeg_decoder = {
     .name           = "qpeg",
+    .long_name      = NULL_IF_CONFIG_SMALL("Q-team QPEG"),
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = AV_CODEC_ID_QPEG,
     .priv_data_size = sizeof(QpegContext),
@@ -348,5 +351,4 @@ AVCodec ff_qpeg_decoder = {
     .decode         = decode_frame,
     .flush          = decode_flush,
     .capabilities   = CODEC_CAP_DR1,
-    .long_name      = NULL_IF_CONFIG_SMALL("Q-team QPEG"),
 };