avcodec/codec_internal: Add FFCodec, hide internal part of AVCodec

Up until now, codec.h contains both public and private parts
of AVCodec. This exposes the internals of AVCodec to users
and leads them into the temptation of actually using them
and forces us to forward-declare structures and types that
users can't use at all.

This commit changes this by adding a new structure FFCodec to
codec_internal.h that extends AVCodec, i.e. contains the public
AVCodec as first member; the private fields of AVCodec are moved
to this structure, leaving codec.h clean.

Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/libavcodec/encode.h b/libavcodec/encode.h
index c9cec0cc80..97b3acf9df 100644
--- a/libavcodec/encode.h
+++ b/libavcodec/encode.h
@@ -47,7 +47,7 @@ int ff_get_encode_buffer(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, i
 /**
  * Check AVPacket size and allocate data.
  *
- * Encoders supporting AVCodec.encode2() can use this as a convenience to
+ * Encoders supporting FFCodec.encode2() can use this as a convenience to
  * obtain a big enough buffer for the encoded bitstream.
  *
  * @param avctx   the AVCodecContext of the encoder
@@ -61,7 +61,7 @@ int ff_alloc_packet(AVCodecContext *avctx, AVPacket *avpkt, int64_t size);
 
 /*
  * Perform encoder initialization and validation.
- * Called when opening the encoder, before the AVCodec.init() call.
+ * Called when opening the encoder, before the FFCodec.init() call.
  */
 int ff_encode_preinit(AVCodecContext *avctx);