avcodec/avcodec: Add FFHWAccel, hide internals of AVHWAccel

This commit is the AVHWAccel analogue of commit
20f972701806be20a77f808db332d9489343bb78: It moves the private fields
of AVHWAccel to a new struct FFHWAccel extending AVHWAccel
in an internal header (namely hwaccel_internal.h).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

1 files changed, 0 insertions, 133 deletions

diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index b1a7c3069d..649411ac79 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -2144,139 +2144,6 @@ typedef struct AVHWAccel {
      * see AV_HWACCEL_CODEC_CAP_*
      */
     int capabilities;
-
-    /*****************************************************************
-     * No fields below this line are part of the public API. They
-     * may not be used outside of libavcodec and can be changed and
-     * removed at will.
-     * New public fields should be added right above.
-     *****************************************************************
-     */
-
-    /**
-     * Allocate a custom buffer
-     */
-    int (*alloc_frame)(AVCodecContext *avctx, AVFrame *frame);
-
-    /**
-     * Called at the beginning of each frame or field picture.
-     *
-     * Meaningful frame information (codec specific) is guaranteed to
-     * be parsed at this point. This function is mandatory.
-     *
-     * Note that buf can be NULL along with buf_size set to 0.
-     * Otherwise, this means the whole frame is available at this point.
-     *
-     * @param avctx the codec context
-     * @param buf the frame data buffer base
-     * @param buf_size the size of the frame in bytes
-     * @return zero if successful, a negative value otherwise
-     */
-    int (*start_frame)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size);
-
-    /**
-     * Callback for parameter data (SPS/PPS/VPS etc).
-     *
-     * Useful for hardware decoders which keep persistent state about the
-     * video parameters, and need to receive any changes to update that state.
-     *
-     * @param avctx the codec context
-     * @param type the nal unit type
-     * @param buf the nal unit data buffer
-     * @param buf_size the size of the nal unit in bytes
-     * @return zero if successful, a negative value otherwise
-     */
-    int (*decode_params)(AVCodecContext *avctx, int type, const uint8_t *buf, uint32_t buf_size);
-
-    /**
-     * Callback for each slice.
-     *
-     * Meaningful slice information (codec specific) is guaranteed to
-     * be parsed at this point. This function is mandatory.
-     *
-     * @param avctx the codec context
-     * @param buf the slice data buffer base
-     * @param buf_size the size of the slice in bytes
-     * @return zero if successful, a negative value otherwise
-     */
-    int (*decode_slice)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size);
-
-    /**
-     * Called at the end of each frame or field picture.
-     *
-     * The whole picture is parsed at this point and can now be sent
-     * to the hardware accelerator. This function is mandatory.
-     *
-     * @param avctx the codec context
-     * @return zero if successful, a negative value otherwise
-     */
-    int (*end_frame)(AVCodecContext *avctx);
-
-    /**
-     * Size of per-frame hardware accelerator private data.
-     *
-     * Private data is allocated with av_mallocz() before
-     * AVCodecContext.get_buffer() and deallocated after
-     * AVCodecContext.release_buffer().
-     */
-    int frame_priv_data_size;
-
-    /**
-     * Initialize the hwaccel private data.
-     *
-     * This will be called from ff_get_format(), after hwaccel and
-     * hwaccel_context are set and the hwaccel private data in AVCodecInternal
-     * is allocated.
-     */
-    int (*init)(AVCodecContext *avctx);
-
-    /**
-     * Uninitialize the hwaccel private data.
-     *
-     * This will be called from get_format() or avcodec_close(), after hwaccel
-     * and hwaccel_context are already uninitialized.
-     */
-    int (*uninit)(AVCodecContext *avctx);
-
-    /**
-     * Size of the private data to allocate in
-     * AVCodecInternal.hwaccel_priv_data.
-     */
-    int priv_data_size;
-
-    /**
-     * Internal hwaccel capabilities.
-     */
-    int caps_internal;
-
-    /**
-     * Fill the given hw_frames context with current codec parameters. Called
-     * from get_format. Refer to avcodec_get_hw_frames_parameters() for
-     * details.
-     *
-     * This CAN be called before AVHWAccel.init is called, and you must assume
-     * that avctx->hwaccel_priv_data is invalid.
-     */
-    int (*frame_params)(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx);
-
-    /**
-     * Copy necessary context variables from a previous thread context to the current one.
-     * For thread-safe hwaccels only.
-     */
-    int (*update_thread_context)(AVCodecContext *dst, const AVCodecContext *src);
-
-    /**
-     * Callback to free the hwaccel-specific frame data.
-     *
-     * @param hwctx a pointer to an AVHWDeviceContext.
-     * @param data the per-frame hardware accelerator private data to be freed.
-     */
-    void (*free_frame_priv)(void *hwctx, uint8_t *data);
-
-    /**
-     * Callback to flush the hwaccel state.
-     */
-    void (*flush)(AVCodecContext *avctx);
 } AVHWAccel;
 
 /**