1 files changed, 61 insertions, 0 deletions
diff --git a/ffmpeg/libavformat/framecrcenc.c b/ffmpeg/libavformat/framecrcenc.c
new file mode 100644
index 0000000..92f2e91
--- /dev/null
+++ b/ffmpeg/libavformat/framecrcenc.c
@@ -0,0 +1,61 @@
+/*
+ * frame CRC encoder (for codec/format testing)
+ * Copyright (c) 2002 Fabrice Bellard
+ *
+ * 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
+ */
+
+#include "libavutil/adler32.h"
+#include "libavutil/avstring.h"
+#include "avformat.h"
+#include "internal.h"
+
+static int framecrc_write_packet(struct AVFormatContext *s, AVPacket *pkt)
+{
+    uint32_t crc = av_adler32_update(0, pkt->data, pkt->size);
+    char buf[256];
+
+    snprintf(buf, sizeof(buf), "%d, %10"PRId64", %10"PRId64", %8d, %8d, 0x%08x",
+             pkt->stream_index, pkt->dts, pkt->pts, pkt->duration, pkt->size, crc);
+    if (pkt->flags != AV_PKT_FLAG_KEY)
+        av_strlcatf(buf, sizeof(buf), ", F=0x%0X", pkt->flags);
+    if (pkt->side_data_elems) {
+        int i;
+        av_strlcatf(buf, sizeof(buf), ", S=%d", pkt->side_data_elems);
+
+        for (i=0; i<pkt->side_data_elems; i++) {
+            uint32_t side_data_crc = av_adler32_update(0,
+                                                    pkt->side_data[i].data,
+                                                    pkt->side_data[i].size);
+            av_strlcatf(buf, sizeof(buf), ", %8d, 0x%08x", pkt->side_data[i].size, side_data_crc);
+        }
+    }
+    av_strlcatf(buf, sizeof(buf), "\n");
+    avio_write(s->pb, buf, strlen(buf));
+    avio_flush(s->pb);
+    return 0;
+}
+
+AVOutputFormat ff_framecrc_muxer = {
+    .name              = "framecrc",
+    .long_name         = NULL_IF_CONFIG_SMALL("framecrc testing"),
+    .audio_codec       = AV_CODEC_ID_PCM_S16LE,
+    .video_codec       = AV_CODEC_ID_RAWVIDEO,
+    .write_header      = ff_framehash_write_header,
+    .write_packet      = framecrc_write_packet,
+    .flags             = AVFMT_VARIABLE_FPS | AVFMT_TS_NONSTRICT,
+};