core: move contents to mpvcore (1/2)

core is used in many unix systems for core dumps. For that reason some tools
work under the assumption that the file is indeed a core dump (for example
autoconf does this).

This commit just renames the files. The following one will change all the
includes to fix compilation. This is done this way because git has a easier
time tracing file changes if there is a pure rename commit.

1 files changed, 161 insertions, 0 deletions

diff --git a/mpvcore/av_log.c b/mpvcore/av_log.c
new file mode 100644
index 0000000000..1331a1fb26
--- /dev/null
+++ b/mpvcore/av_log.c
@@ -0,0 +1,161 @@
+/*
+ * av_log to mp_msg converter
+ * Copyright (C) 2006 Michael Niedermayer
+ * Copyright (C) 2009 Uoti Urpala
+ *
+ * This file is part of MPlayer.
+ *
+ * MPlayer is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * MPlayer 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with MPlayer; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <stdlib.h>
+#include <stdbool.h>
+
+#include "av_log.h"
+#include "config.h"
+#include "core/mp_msg.h"
+#include <libavutil/avutil.h>
+#include <libavutil/log.h>
+
+#include <libavcodec/avcodec.h>
+#include <libavformat/avformat.h>
+#include <libswscale/swscale.h>
+
+#ifdef CONFIG_LIBAVDEVICE
+#include <libavdevice/avdevice.h>
+#endif
+
+#ifdef CONFIG_LIBAVFILTER
+#include <libavfilter/avfilter.h>
+#endif
+
+static int av_log_level_to_mp_level(int av_level)
+{
+    if (av_level > AV_LOG_VERBOSE)
+        return MSGL_DBG2;
+    if (av_level > AV_LOG_INFO)
+        return MSGL_V;
+    if (av_level > AV_LOG_WARNING)
+        return MSGL_INFO;
+    if (av_level > AV_LOG_ERROR)
+        return MSGL_WARN;
+    if (av_level > AV_LOG_FATAL)
+        return MSGL_ERR;
+    return MSGL_FATAL;
+}
+
+static int extract_msg_type_from_ctx(void *ptr)
+{
+    if (!ptr)
+        return MSGT_FIXME;
+
+    AVClass *avc = *(AVClass **)ptr;
+    if (!avc) {
+        mp_msg(MSGT_FIXME, MSGL_WARN,
+               "av_log callback called with bad parameters (NULL AVClass).\n"
+               "This is a bug in one of Libav/FFmpeg libraries used.\n");
+        return MSGT_FIXME;
+    }
+
+    if (!strcmp(avc->class_name, "AVCodecContext")) {
+        AVCodecContext *s = ptr;
+        if (s->codec) {
+            if (s->codec->type == AVMEDIA_TYPE_AUDIO) {
+                if (s->codec->decode)
+                    return MSGT_DECAUDIO;
+            } else if (s->codec->type == AVMEDIA_TYPE_VIDEO) {
+                if (s->codec->decode)
+                    return MSGT_DECVIDEO;
+            }
+            // FIXME subtitles, encoders
+            // What msgt for them? There is nothing appropriate...
+        }
+        return MSGT_FIXME;
+    }
+
+    if (!strcmp(avc->class_name, "AVFormatContext")) {
+        AVFormatContext *s = ptr;
+        if (s->iformat)
+            return MSGT_DEMUXER;
+        else if (s->oformat)
+            return MSGT_MUXER;
+        return MSGT_FIXME;
+    }
+
+    return MSGT_FIXME;
+}
+
+#if LIBAVCODEC_VERSION_MICRO >= 100
+#define LIB_PREFIX "ffmpeg"
+#else
+#define LIB_PREFIX "libav"
+#endif
+
+static bool print_prefix = true;
+
+static void mp_msg_av_log_callback(void *ptr, int level, const char *fmt,
+                                   va_list vl)
+{
+    AVClass *avc = ptr ? *(AVClass **)ptr : NULL;
+    int mp_level = av_log_level_to_mp_level(level);
+    int type = extract_msg_type_from_ctx(ptr);
+
+    if (!mp_msg_test(type, mp_level))
+        return;
+
+    if (print_prefix) {
+        mp_msg(type, mp_level, "[%s/%s] ", LIB_PREFIX,
+               avc ? avc->item_name(ptr) : "?");
+    }
+    print_prefix = fmt[strlen(fmt) - 1] == '\n';
+
+    mp_msg_va(type, mp_level, fmt, vl);
+}
+
+void init_libav(void)
+{
+    av_log_set_callback(mp_msg_av_log_callback);
+    avcodec_register_all();
+    av_register_all();
+    avformat_network_init();
+
+#ifdef CONFIG_LIBAVFILTER
+    avfilter_register_all();
+#endif
+#ifdef CONFIG_LIBAVDEVICE
+    avdevice_register_all();
+#endif
+}
+
+#define V(x) (x)>>16, (x)>>8 & 255, (x) & 255
+static void print_version(char *name, unsigned buildv, unsigned runv)
+{
+
+    if (buildv == runv)
+        mp_msg(MSGT_CPLAYER, MSGL_V, "Compiled against %s version %d.%d.%d\n",
+               name, V(buildv));
+    else
+        mp_msg(MSGT_CPLAYER, MSGL_V, "Compiled against %s version %d.%d.%d "
+               "(runtime %d.%d.%d)\n", name, V(buildv), V(runv));
+}
+#undef V
+
+void print_libav_versions(void)
+{
+    print_version("libavutil", LIBAVUTIL_VERSION_INT, avutil_version());
+    print_version("libavcodec", LIBAVCODEC_VERSION_INT, avcodec_version());
+    print_version("libavformat", LIBAVFORMAT_VERSION_INT, avformat_version());
+    print_version("libswscale", LIBSWSCALE_VERSION_INT, swscale_version());
+}