avcodec/decode: add a flags parameter to ff_reget_buffer()

Some decoders may not need a writable buffer in some specific cases, but only
a reference to the existing buffer with updated frame properties instead, for
the purpose of returning duplicate frames. For this, the
FF_REGET_BUFFER_FLAG_READONLY flag is added, which will prevent potential
allocations and buffer copies when they are not needed.
Signed-off-by: James Almer <jamrial@gmail.com>

libavcodec/aasc.c

@@ -91,7 +91,7 @@ static int aasc_decode_frame(AVCodecContext *avctx,
         return AVERROR_INVALIDDATA;
     }
 
-    if ((ret = ff_reget_buffer(avctx, s->frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, s->frame, 0)) < 0)
         return ret;
 
     compr     = AV_RL32(buf);

libavcodec/anm.c

@@ -122,7 +122,7 @@ static int decode_frame(AVCodecContext *avctx,
     if (buf_size < 7)
         return AVERROR_INVALIDDATA;
 
-    if ((ret = ff_reget_buffer(avctx, s->frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, s->frame, 0)) < 0)
         return ret;
     dst     = s->frame->data[0];
     dst_end = s->frame->data[0] + s->frame->linesize[0]*avctx->height;

libavcodec/ansi.c

@@ -362,7 +362,7 @@ static int decode_frame(AVCodecContext *avctx,
     const uint8_t *buf_end   = buf+buf_size;
     int ret, i, count;
 
-    if ((ret = ff_reget_buffer(avctx, s->frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, s->frame, 0)) < 0)
         return ret;
     if (!avctx->frame_number) {
         for (i=0; i<avctx->height; i++)

libavcodec/avs.c

@@ -59,7 +59,7 @@ avs_decode_frame(AVCodecContext * avctx,
     AvsBlockType type;
     GetBitContext change_map = {0}; //init to silence warning
 
-    if ((ret = ff_reget_buffer(avctx, p)) < 0)
+    if ((ret = ff_reget_buffer(avctx, p, 0)) < 0)
         return ret;
     p->pict_type = AV_PICTURE_TYPE_P;
     p->key_frame = 0;

libavcodec/bethsoftvideo.c

@@ -79,7 +79,7 @@ static int bethsoftvid_decode_frame(AVCodecContext *avctx,
     int code, ret;
     int yoffset;
 
-    if ((ret = ff_reget_buffer(avctx, vid->frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, vid->frame, 0)) < 0)
         return ret;
     wrap_to_next_line = vid->frame->linesize[0] - avctx->width;
 

libavcodec/bink.c

@@ -1261,7 +1261,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPac
         if ((ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF)) < 0)
             return ret;
     } else {
-        if ((ret = ff_reget_buffer(avctx, c->last)) < 0)
+        if ((ret = ff_reget_buffer(avctx, c->last, 0)) < 0)
             return ret;
         if ((ret = av_frame_ref(frame, c->last)) < 0)
             return ret;

libavcodec/c93.c

@@ -138,7 +138,7 @@ static int decode_frame(AVCodecContext *avctx, void *data,
 
     c93->currentpic ^= 1;
 
-    if ((ret = ff_reget_buffer(avctx, newpic)) < 0)
+    if ((ret = ff_reget_buffer(avctx, newpic, 0)) < 0)
         return ret;
 
     stride = newpic->linesize[0];

libavcodec/cdgraphics.c

@@ -283,7 +283,7 @@ static int cdg_decode_frame(AVCodecContext *avctx,
 
     bytestream2_init(&gb, avpkt->data, avpkt->size);
 
-    if ((ret = ff_reget_buffer(avctx, cc->frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, cc->frame, 0)) < 0)
         return ret;
     if (!cc->cleared) {
         memset(cc->frame->data[0], 0, cc->frame->linesize[0] * avctx->height);

libavcodec/cinepak.c

@@ -473,7 +473,7 @@ static int cinepak_decode_frame(AVCodecContext *avctx,
         return ret;
     }
 
-    if ((ret = ff_reget_buffer(avctx, s->frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, s->frame, 0)) < 0)
         return ret;
 
     if (s->palette_video) {

libavcodec/clearvideo.c

@@ -524,7 +524,7 @@ static int clv_decode_frame(AVCodecContext *avctx, void *data,
             return AVERROR_INVALIDDATA;
         }
 
-        if ((ret = ff_reget_buffer(avctx, c->pic)) < 0)
+        if ((ret = ff_reget_buffer(avctx, c->pic, 0)) < 0)
             return ret;
 
         c->pic->key_frame = 1;
@@ -558,7 +558,7 @@ static int clv_decode_frame(AVCodecContext *avctx, void *data,
         if (c->pmb_width * c->pmb_height > 8LL*(buf_size - bytestream2_tell(&gb)))
             return AVERROR_INVALIDDATA;
 
-        if ((ret = ff_reget_buffer(avctx, c->pic)) < 0)
+        if ((ret = ff_reget_buffer(avctx, c->pic, 0)) < 0)
             return ret;
 
         ret = av_frame_copy(c->pic, c->prev);

libavcodec/cpia.c

@@ -100,7 +100,7 @@ static int cpia_decode_frame(AVCodecContext *avctx,
     }
 
     // Get buffer filled with previous frame
-    if ((ret = ff_reget_buffer(avctx, frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, frame, 0)) < 0)
         return ret;
 
 

libavcodec/cscd.c

@@ -77,7 +77,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
         return AVERROR_INVALIDDATA;
     }
 
-    if ((ret = ff_reget_buffer(avctx, c->pic)) < 0)
+    if ((ret = ff_reget_buffer(avctx, c->pic, 0)) < 0)
         return ret;
 
     // decompress data

libavcodec/decode.c

@@ -1970,7 +1970,7 @@ int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
     return ret;
 }
 
-static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame)
+static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags)
 {
     AVFrame *tmp;
     int ret;
@@ -1986,7 +1986,7 @@ static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame)
     if (!frame->data[0])
         return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
 
-    if (av_frame_is_writable(frame))
+    if ((flags & FF_REGET_BUFFER_FLAG_READONLY) || av_frame_is_writable(frame))
         return ff_decode_frame_props(avctx, frame);
 
     tmp = av_frame_alloc();
@@ -2007,9 +2007,9 @@ static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame)
     return 0;
 }
 
-int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame)
+int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
 {
-    int ret = reget_buffer_internal(avctx, frame);
+    int ret = reget_buffer_internal(avctx, frame, flags);
     if (ret < 0)
         av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
     return ret;

libavcodec/dsicinvideo.c

@@ -290,7 +290,7 @@ static int cinvideo_decode_frame(AVCodecContext *avctx,
         break;
     }
 
-    if ((res = ff_reget_buffer(avctx, cin->frame)) < 0)
+    if ((res = ff_reget_buffer(avctx, cin->frame, 0)) < 0)
         return res;
 
     memcpy(cin->frame->data[1], cin->palette, sizeof(cin->palette));

libavcodec/fic.c

@@ -278,7 +278,7 @@ static int fic_decode_frame(AVCodecContext *avctx, void *data,
     int skip_cursor = ctx->skip_cursor;
     uint8_t *sdata;
 
-    if ((ret = ff_reget_buffer(avctx, ctx->frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, ctx->frame, 0)) < 0)
         return ret;
 
     /* Header + at least one slice (4) */
@@ -421,7 +421,7 @@ static int fic_decode_frame(AVCodecContext *avctx, void *data,
     }
 
     /* Make sure we use a user-supplied buffer. */
-    if ((ret = ff_reget_buffer(avctx, ctx->final_frame)) < 0) {
+    if ((ret = ff_reget_buffer(avctx, ctx->final_frame, 0)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "Could not make frame writable.\n");
         return ret;
     }

libavcodec/flashsv.c

@@ -368,7 +368,7 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
             s->image_width, s->image_height, s->block_width, s->block_height,
             h_blocks, v_blocks, h_part, v_part);
 
-    if ((ret = ff_reget_buffer(avctx, s->frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, s->frame, 0)) < 0)
         return ret;
 
     /* loop over all block columns */

libavcodec/flicvideo.c

@@ -185,7 +185,7 @@ static int flic_decode_frame_8BPP(AVCodecContext *avctx,
 
     bytestream2_init(&g2, buf, buf_size);
 
-    if ((ret = ff_reget_buffer(avctx, s->frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, s->frame, 0)) < 0)
         return ret;
 
     pixels = s->frame->data[0];
@@ -519,7 +519,7 @@ static int flic_decode_frame_15_16BPP(AVCodecContext *avctx,
 
     bytestream2_init(&g2, buf, buf_size);
 
-    if ((ret = ff_reget_buffer(avctx, s->frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, s->frame, 0)) < 0)
         return ret;
 
     pixels = s->frame->data[0];
@@ -817,7 +817,7 @@ static int flic_decode_frame_24BPP(AVCodecContext *avctx,
 
     bytestream2_init(&g2, buf, buf_size);
 
-    if ((ret = ff_reget_buffer(avctx, s->frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, s->frame, 0)) < 0)
         return ret;
 
     pixels = s->frame->data[0];

libavcodec/gifdec.c

@@ -513,7 +513,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
             return AVERROR_INVALIDDATA;
         }
 
-        if ((ret = ff_reget_buffer(avctx, s->frame)) < 0)
+        if ((ret = ff_reget_buffer(avctx, s->frame, 0)) < 0)
             return ret;
 
         s->frame->pict_type = AV_PICTURE_TYPE_P;

libavcodec/indeo2.c

@@ -161,7 +161,7 @@ static int ir2_decode_frame(AVCodecContext *avctx,
     int start, ret;
     int ltab, ctab;
 
-    if ((ret = ff_reget_buffer(avctx, p)) < 0)
+    if ((ret = ff_reget_buffer(avctx, p, 0)) < 0)
         return ret;
 
     start = 48; /* hardcoded for now */

libavcodec/internal.h

@@ -320,11 +320,12 @@ static av_always_inline float ff_exp2fi(int x) {
  */
 int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags);
 
+#define FF_REGET_BUFFER_FLAG_READONLY 1 ///< the returned buffer does not need to be writable
 /**
- * Identical in function to av_frame_make_writable(), except it uses
- * ff_get_buffer() to allocate the buffer when needed.
+ * Identical in function to ff_get_buffer(), except it reuses the existing buffer
+ * if available.
  */
-int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame);
+int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame, int flags);
 
 int ff_thread_can_start_frame(AVCodecContext *avctx);
 

libavcodec/jvdec.c

@@ -168,7 +168,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
             GetBitContext gb;
             init_get_bits(&gb, buf, 8 * video_size);
 
-            if ((ret = ff_reget_buffer(avctx, s->frame)) < 0)
+            if ((ret = ff_reget_buffer(avctx, s->frame, 0)) < 0)
                 return ret;
 
             if (avctx->height/8 * (avctx->width/8) > 4 * video_size) {

libavcodec/mmvideo.c

@@ -201,7 +201,7 @@ static int mm_decode_frame(AVCodecContext *avctx,
     buf_size -= MM_PREAMBLE_SIZE;
     bytestream2_init(&s->gb, buf, buf_size);
 
-    if ((res = ff_reget_buffer(avctx, s->frame)) < 0)
+    if ((res = ff_reget_buffer(avctx, s->frame, 0)) < 0)
         return res;
 
     switch(type) {

libavcodec/motionpixels.c

@@ -292,7 +292,7 @@ static int mp_decode_frame(AVCodecContext *avctx,
     GetBitContext gb;
     int i, count1, count2, sz, ret;
 
-    if ((ret = ff_reget_buffer(avctx, mp->frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, mp->frame, 0)) < 0)
         return ret;
 
     /* le32 bitstream msb first */

libavcodec/msrle.c

@@ -93,7 +93,7 @@ static int msrle_decode_frame(AVCodecContext *avctx,
     if (buf_size < 2) //Minimally a end of picture code should be there
         return AVERROR_INVALIDDATA;
 
-    if ((ret = ff_reget_buffer(avctx, s->frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, s->frame, 0)) < 0)
         return ret;
 
     if (avctx->bits_per_coded_sample > 1 && avctx->bits_per_coded_sample <= 8) {

libavcodec/mss1.c

@@ -154,7 +154,7 @@ static int mss1_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
 
     arith_init(&acoder, &gb);
 
-    if ((ret = ff_reget_buffer(avctx, ctx->pic)) < 0)
+    if ((ret = ff_reget_buffer(avctx, ctx->pic, 0)) < 0)
         return ret;
 
     c->pal_pic    =  ctx->pic->data[0] + ctx->pic->linesize[0] * (avctx->height - 1);

libavcodec/mss2.c

@@ -618,7 +618,7 @@ static int mss2_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
             return AVERROR_INVALIDDATA;
         }
     } else {
-        if ((ret = ff_reget_buffer(avctx, ctx->last_pic)) < 0)
+        if ((ret = ff_reget_buffer(avctx, ctx->last_pic, 0)) < 0)
             return ret;
         if ((ret = av_frame_ref(frame, ctx->last_pic)) < 0)
             return ret;

libavcodec/mss3.c

@@ -737,7 +737,7 @@ static int mss3_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
         return buf_size;
     c->got_error = 0;
 
-    if ((ret = ff_reget_buffer(avctx, c->pic)) < 0)
+    if ((ret = ff_reget_buffer(avctx, c->pic, 0)) < 0)
         return ret;
     c->pic->key_frame = keyframe;
     c->pic->pict_type = keyframe ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P;

libavcodec/mss4.c

@@ -558,7 +558,7 @@ static int mss4_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
     if (frame_type != SKIP_FRAME && 8*buf_size < 8*HEADER_SIZE + mb_width*mb_height)
         return AVERROR_INVALIDDATA;
 
-    if ((ret = ff_reget_buffer(avctx, c->pic)) < 0)
+    if ((ret = ff_reget_buffer(avctx, c->pic, 0)) < 0)
         return ret;
     c->pic->key_frame = (frame_type == INTRA_FRAME);
     c->pic->pict_type = (frame_type == INTRA_FRAME) ? AV_PICTURE_TYPE_I

libavcodec/msvideo1.c

@@ -310,7 +310,7 @@ static int msvideo1_decode_frame(AVCodecContext *avctx,
         return AVERROR_INVALIDDATA;
     }
 
-    if ((ret = ff_reget_buffer(avctx, s->frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, s->frame, 0)) < 0)
         return ret;
 
     if (s->mode_8bit) {

libavcodec/nuv.c

@@ -268,7 +268,7 @@ retry:
         init_frame = 1;
     }
 
-    if ((result = ff_reget_buffer(avctx, c->pic)) < 0)
+    if ((result = ff_reget_buffer(avctx, c->pic, 0)) < 0)
         return result;
     if (init_frame) {
         memset(c->pic->data[0], 0,    avctx->height * c->pic->linesize[0]);

libavcodec/pafvideo.c

@@ -289,7 +289,7 @@ static int paf_video_decode(AVCodecContext *avctx, void *data,
         c->video_size / 32 - (int64_t)bytestream2_get_bytes_left(&c->gb) > c->video_size / 32 * (int64_t)avctx->discard_damaged_percentage / 100)
         return AVERROR_INVALIDDATA;
 
-    if ((ret = ff_reget_buffer(avctx, c->pic)) < 0)
+    if ((ret = ff_reget_buffer(avctx, c->pic, 0)) < 0)
         return ret;
 
     if (code & 0x20) {  // frame is keyframe

libavcodec/qtrle.c

@@ -490,7 +490,7 @@ static int qtrle_decode_frame(AVCodecContext *avctx,
         start_line = 0;
         height     = s->avctx->height;
     }
-    if ((ret = ff_reget_buffer(avctx, s->frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, s->frame, 0)) < 0)
         return ret;
 
     row_ptr = s->frame->linesize[0] * start_line;

libavcodec/roqvideodec.c

@@ -206,7 +206,7 @@ static int roq_decode_frame(AVCodecContext *avctx,
     int copy = !s->current_frame->data[0] && s->last_frame->data[0];
     int ret;
 
-    if ((ret = ff_reget_buffer(avctx, s->current_frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, s->current_frame, 0)) < 0)
         return ret;
 
     if (copy) {

libavcodec/rpza.c

@@ -108,7 +108,7 @@ static int rpza_decode_stream(RpzaContext *s)
     if (total_blocks / 32 > bytestream2_get_bytes_left(&s->gb))
         return AVERROR_INVALIDDATA;
 
-    if ((ret = ff_reget_buffer(s->avctx, s->frame)) < 0)
+    if ((ret = ff_reget_buffer(s->avctx, s->frame, 0)) < 0)
         return ret;
     pixels = (uint16_t *)s->frame->data[0];
     stride = s->frame->linesize[0] / 2;

libavcodec/rscc.c

@@ -310,7 +310,7 @@ static int rscc_decode_frame(AVCodecContext *avctx, void *data,
     }
 
     /* Allocate when needed */
-    ret = ff_reget_buffer(avctx, ctx->reference);
+    ret = ff_reget_buffer(avctx, ctx->reference, 0);
     if (ret < 0)
         goto end;
 

libavcodec/scpr.c

@@ -504,7 +504,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
             return ret;
     }
 
-    if ((ret = ff_reget_buffer(avctx, s->current_frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, s->current_frame, 0)) < 0)
         return ret;
 
     bytestream2_init(gb, avpkt->data, avpkt->size);

libavcodec/screenpresso.c

@@ -145,7 +145,7 @@ static int screenpresso_decode_frame(AVCodecContext *avctx, void *data,
         return AVERROR_UNKNOWN;
     }
 
-    ret = ff_reget_buffer(avctx, ctx->current);
+    ret = ff_reget_buffer(avctx, ctx->current, 0);
     if (ret < 0)
         return ret;
 

libavcodec/smacker.c

@@ -428,7 +428,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
     if (avpkt->size <= 769)
         return AVERROR_INVALIDDATA;
 
-    if ((ret = ff_reget_buffer(avctx, smk->pic)) < 0)
+    if ((ret = ff_reget_buffer(avctx, smk->pic, 0)) < 0)
         return ret;
 
     /* make the palette available on the way out */

libavcodec/smc.c

@@ -445,7 +445,7 @@ static int smc_decode_frame(AVCodecContext *avctx,
 
     bytestream2_init(&s->gb, buf, buf_size);
 
-    if ((ret = ff_reget_buffer(avctx, s->frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, s->frame, 0)) < 0)
         return ret;
 
     if (pal && pal_size == AVPALETTE_SIZE) {

libavcodec/tiertexseqv.c

@@ -239,7 +239,7 @@ static int seqvideo_decode_frame(AVCodecContext *avctx,
 
     SeqVideoContext *seq = avctx->priv_data;
 
-    if ((ret = ff_reget_buffer(avctx, seq->frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, seq->frame, 0)) < 0)
         return ret;
 
     if (seqvideo_decode(seq, buf, buf_size))

libavcodec/truemotion1.c

@@ -882,7 +882,7 @@ static int truemotion1_decode_frame(AVCodecContext *avctx,
     if ((ret = truemotion1_decode_header(s)) < 0)
         return ret;
 
-    if ((ret = ff_reget_buffer(avctx, s->frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, s->frame, 0)) < 0)
         return ret;
 
     if (compression_types[s->compression].algorithm == ALGO_RGB24H) {

libavcodec/truemotion2.c

@@ -915,7 +915,7 @@ static int decode_frame(AVCodecContext *avctx,
         return AVERROR(ENOMEM);
     }
 
-    if ((ret = ff_reget_buffer(avctx, p)) < 0)
+    if ((ret = ff_reget_buffer(avctx, p, 0)) < 0)
         return ret;
 
     l->bdsp.bswap_buf((uint32_t *) l->buffer, (const uint32_t *) buf,

libavcodec/tscc.c

@@ -103,7 +103,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
         return AVERROR_UNKNOWN;
     }
 
-    if ((ret = ff_reget_buffer(avctx, frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, frame, 0)) < 0)
         return ret;
 
     if (ret != Z_DATA_ERROR) {

libavcodec/tscc2.c

@@ -240,7 +240,7 @@ static int tscc2_decode_frame(AVCodecContext *avctx, void *data,
         return buf_size;
     }
 
-    if ((ret = ff_reget_buffer(avctx, c->pic)) < 0) {
+    if ((ret = ff_reget_buffer(avctx, c->pic, 0)) < 0) {
         return ret;
     }
 

libavcodec/ulti.c

@@ -230,7 +230,7 @@ static int ulti_decode_frame(AVCodecContext *avctx,
     int skip;
     int tmp;
 
-    if ((ret = ff_reget_buffer(avctx, s->frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, s->frame, 0)) < 0)
         return ret;
 
     bytestream2_init(&s->gb, buf, buf_size);

libavcodec/vmnc.c

@@ -339,7 +339,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
     if (12LL * chunks > bytestream2_get_bytes_left(gb))
         return AVERROR_INVALIDDATA;
 
-    if ((ret = ff_reget_buffer(avctx, c->pic)) < 0)
+    if ((ret = ff_reget_buffer(avctx, c->pic, 0)) < 0)
         return ret;
 
     c->pic->key_frame = 0;

libavcodec/xxan.c

@@ -410,7 +410,7 @@ static int xan_decode_frame(AVCodecContext *avctx,
     int ftype;
     int ret;
 
-    if ((ret = ff_reget_buffer(avctx, s->pic)) < 0)
+    if ((ret = ff_reget_buffer(avctx, s->pic, 0)) < 0)
         return ret;
 
     bytestream2_init(&s->gb, avpkt->data, avpkt->size);

libavcodec/yop.c

@@ -204,7 +204,7 @@ static int yop_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
         return AVERROR_INVALIDDATA;
     }
 
-    if ((ret = ff_reget_buffer(avctx, frame)) < 0)
+    if ((ret = ff_reget_buffer(avctx, frame, 0)) < 0)
         return ret;
 
     if (!avctx->frame_number)