lavc: Move start code finding to utils.c

[ffmpeg] / libavcodec / mpegvideo.c

diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index ae6cdefe6b6fd9c700c809f5b5455259ab7a6911..5635c26c830c8c088d0952d5b59878a7b860a987 100644 (file)
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -158,39 +158,6 @@ static void mpeg_er_decode_mb(void *opaque, int ref, int mv_dir, int mv_type,
     ff_MPV_decode_mb(s, s->block);
 }
 
-const uint8_t *avpriv_mpv_find_start_code(const uint8_t *restrict p,
-                                          const uint8_t *end,
-                                          uint32_t * restrict state)
-{
-    int i;
-
-    assert(p <= end);
-    if (p >= end)
-        return end;
-
-    for (i = 0; i < 3; i++) {
-        uint32_t tmp = *state << 8;
-        *state = tmp + *(p++);
-        if (tmp == 0x100 || p == end)
-            return p;
-    }
-
-    while (p < end) {
-        if      (p[-1] > 1      ) p += 3;
-        else if (p[-2]          ) p += 2;
-        else if (p[-3]|(p[-1]-1)) p++;
-        else {
-            p++;
-            break;
-        }
-    }
-
-    p = FFMIN(p, end) - 4;
-    *state = AV_RB32(p);
-
-    return p + 4;
-}
-
 /* init common dct for both encoder and decoder */
 av_cold int ff_dct_common_init(MpegEncContext *s)
 {
@@ -266,18 +233,6 @@ static int alloc_frame_buffer(MpegEncContext *s, Picture *pic)
 {
     int r, ret;
 
-    if (s->avctx->hwaccel) {
-        assert(!pic->hwaccel_picture_private);
-        if (s->avctx->hwaccel->priv_data_size) {
-            pic->hwaccel_priv_buf = av_buffer_allocz(s->avctx->hwaccel->priv_data_size);
-            if (!pic->hwaccel_priv_buf) {
-                av_log(s->avctx, AV_LOG_ERROR, "alloc_frame_buffer() failed (hwaccel private data allocation)\n");
-                return -1;
-            }
-            pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data;
-        }
-    }
-
     pic->tf.f = &pic->f;
     if (s->codec_id != AV_CODEC_ID_WMV3IMAGE &&
         s->codec_id != AV_CODEC_ID_VC1IMAGE  &&
@@ -294,11 +249,21 @@ static int alloc_frame_buffer(MpegEncContext *s, Picture *pic)
     if (r < 0 || !pic->f.data[0]) {
         av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed (%d %p)\n",
                r, pic->f.data[0]);
-        av_buffer_unref(&pic->hwaccel_priv_buf);
-        pic->hwaccel_picture_private = NULL;
         return -1;
     }
 
+    if (s->avctx->hwaccel) {
+        assert(!pic->hwaccel_picture_private);
+        if (s->avctx->hwaccel->priv_data_size) {
+            pic->hwaccel_priv_buf = av_buffer_allocz(s->avctx->hwaccel->priv_data_size);
+            if (!pic->hwaccel_priv_buf) {
+                av_log(s->avctx, AV_LOG_ERROR, "alloc_frame_buffer() failed (hwaccel private data allocation)\n");
+                return -1;
+            }
+            pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data;
+        }
+    }
+
     if (s->linesize && (s->linesize   != pic->f.linesize[0] ||
                         s->uvlinesize != pic->f.linesize[1])) {
         av_log(s->avctx, AV_LOG_ERROR,