Gather all coded_frame allocations and free functions to a single place

Allocating coded_frame is what most encoders do anyway, so it makes
sense to always allocate and free it in a single place. Moreover a lot
of encoders freed the frame with av_freep() instead of the correct API
av_frame_free().

This bring uniformity to encoder behaviour and prevents applications
from erroneusly accessing this field when not allocated. Additionally
this helps isolating encoders that export information with coded_frame,
and heavily simplifies its deprecation.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

1 files changed, 0 insertions, 6 deletions

diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c
index ea260b0c87..388fbe476d 100644
--- a/libavcodec/nvenc.c
+++ b/libavcodec/nvenc.c
@@ -771,8 +771,6 @@ av_cold int ff_nvenc_encode_close(AVCodecContext *avctx)
     NV_ENCODE_API_FUNCTION_LIST *nv = &ctx->nvel.nvenc_funcs;
     int i;
 
-    av_frame_free(&avctx->coded_frame);
-
     if (ctx->in) {
         for (i = 0; i < ctx->nb_surfaces; ++i) {
             nv->nvEncDestroyInputBuffer(ctx->nvenc_ctx, ctx->in[i].in);
@@ -819,10 +817,6 @@ av_cold int ff_nvenc_encode_init(AVCodecContext *avctx)
             return ret;
     }
 
-    avctx->coded_frame = av_frame_alloc();
-    if (!avctx->coded_frame)
-        return AVERROR(ENOMEM);
-
     return 0;
 }