Rename ffmpeg-4.2-fit to ffmpeg-4-fit

trunk/3rdparty/ffmpeg-4-fit/libavcodec/pthread_internal.h

@@ -0,0 +1,34 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_PTHREAD_INTERNAL_H
+#define AVCODEC_PTHREAD_INTERNAL_H
+
+#include "avcodec.h"
+
+/* H.264 slice threading seems to be buggy with more than 16 threads,
+ * limit the number of threads to 16 for automatic detection */
+#define MAX_AUTO_THREADS 16
+
+int ff_slice_thread_init(AVCodecContext *avctx);
+void ff_slice_thread_free(AVCodecContext *avctx);
+
+int ff_frame_thread_init(AVCodecContext *avctx);
+void ff_frame_thread_free(AVCodecContext *avctx, int thread_count);
+
+#endif // AVCODEC_PTHREAD_INTERNAL_H