/*
  * Common functions for the frame{crc,md5} muxers
  *

  * 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 "internal.h"
 

 int ff_framehash_write_header(AVFormatContext *s)

 {
     int i;

     if (s->nb_streams && !(s->flags & AVFMT_FLAG_BITEXACT))

         avio_printf(s->pb, "#software: %s\n", LIBAVFORMAT_IDENT);

     for (i = 0; i < s->nb_streams; i++) {
         AVStream *st = s->streams[i];

         AVCodecParameters *avctx = st->codecpar;

         char buf[256] = { 0 };

         avio_printf(s->pb, "#tb %d: %d/%d\n", i, st->time_base.num, st->time_base.den);

         avio_printf(s->pb, "#media_type %d: %s\n", i, av_get_media_type_string(avctx->codec_type));
         avio_printf(s->pb, "#codec_id %d: %s\n", i, avcodec_get_name(avctx->codec_id));
         switch (avctx->codec_type) {
         case AVMEDIA_TYPE_AUDIO:

             av_get_channel_layout_string(buf, sizeof(buf), avctx->channels, avctx->channel_layout);

             avio_printf(s->pb, "#sample_rate %d: %d\n", i,avctx->sample_rate);
             avio_printf(s->pb, "#channel_layout %d: %"PRIx64"\n", i,avctx->channel_layout);

             avio_printf(s->pb, "#channel_layout_name %d: %s\n", i, buf);

             break;
         case AVMEDIA_TYPE_VIDEO:
             avio_printf(s->pb, "#dimensions %d: %dx%d\n", i, avctx->width, avctx->height);
             avio_printf(s->pb, "#sar %d: %d/%d\n", i, st->sample_aspect_ratio.num, st->sample_aspect_ratio.den);
             break;

         }

         avio_flush(s->pb);
     }
     return 0;
 }