* @param s the mpeg context
*/
void (*decode_mb)(struct MpegEncContext *s);
+
+ /**
+ * 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;
} AVHWAccel;
/**
if (!desc)
return AV_PIX_FMT_NONE;
+ if (avctx->hwaccel && avctx->hwaccel->uninit)
+ avctx->hwaccel->uninit(avctx);
+ av_freep(&avctx->internal->hwaccel_priv_data);
+ avctx->hwaccel = NULL;
+
if (desc->flags & AV_PIX_FMT_FLAG_HWACCEL) {
- avctx->hwaccel = find_hwaccel(avctx->codec_id, ret);
- if (!avctx->hwaccel) {
+ AVHWAccel *hwaccel;
+ int err;
+
+ hwaccel = find_hwaccel(avctx->codec_id, ret);
+ if (!hwaccel) {
av_log(avctx, AV_LOG_ERROR,
"Could not find an AVHWAccel for the pixel format: %s",
desc->name);
return AV_PIX_FMT_NONE;
}
- } else {
- avctx->hwaccel = NULL;
+
+ if (hwaccel->priv_data_size) {
+ avctx->internal->hwaccel_priv_data = av_mallocz(hwaccel->priv_data_size);
+ if (!avctx->internal->hwaccel_priv_data)
+ return AV_PIX_FMT_NONE;
+ }
+
+ if (hwaccel->init) {
+ err = hwaccel->init(avctx);
+ if (err < 0) {
+ av_freep(&avctx->internal->hwaccel_priv_data);
+ return AV_PIX_FMT_NONE;
+ }
+ }
+ avctx->hwaccel = hwaccel;
}
return ret;
for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
av_buffer_pool_uninit(&pool->pools[i]);
av_freep(&avctx->internal->pool);
+
+ if (avctx->hwaccel && avctx->hwaccel->uninit)
+ avctx->hwaccel->uninit(avctx);
+ av_freep(&avctx->internal->hwaccel_priv_data);
+
av_freep(&avctx->internal);
}