basic speed control for video_loader

1 files changed, 0 insertions, 209 deletions

diff --git a/ffmpeg-fas/test/generate_seek_table.c b/ffmpeg-fas/test/generate_seek_table.c
deleted file mode 100644
index 5549f57..0000000
--- a/ffmpeg-fas/test/generate_seek_table.c
+++ /dev/null
@@ -1,209 +0,0 @@
-/*****************************************************************************
- * Copyright 2008. Pittsburgh Pattern Recognition, Inc.
- * 
- * This file is part of the Frame Accurate Seeking extension library to 
- * ffmpeg (ffmpeg-fas).
- * 
- * ffmpeg-fas 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 3 of the License, or (at your 
- * option) any later version.
- *
- * The ffmpeg-fas library 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 the ffmpeg-fas library.  If not, see <http://www.gnu.org/licenses/>.
- *
- ******************************************************************************/
-
-#include "libavcodec/avcodec.h"
-#include "libavformat/avformat.h"
-#include <stdio.h>
-#include <string.h>
-#include "seek_indices.h"
-
-/* This executable is used for creating experimental seek tables.
-   The show_seek_table executable will show the seek-table as ffmpeg_fas
-   currently creates them.
- */
-
-int main (int argc, char **argv)
-{
-  av_log_level = AV_LOG_QUIET;
-
-  if (argc < 2) {
-    fprintf (stderr, "usage: %s <video_file>\n", argv[0]);
-    return -1;
-  }
-
-  av_register_all();
-
-  AVFormatContext *pFormatCtx;
-  if (av_open_input_file(&pFormatCtx, argv[1], NULL, 0, NULL) !=0)
-    return -1;
-
-  if (av_find_stream_info(pFormatCtx)<0)
-    return -1;
-   
-  unsigned int stream_id = -1;
-  unsigned int i;
-  
-  for (i = 0; i < pFormatCtx->nb_streams; i++)
-    if (pFormatCtx->streams[i]->codec->codec_type == CODEC_TYPE_VIDEO)
-      {
-	stream_id = i;
-	break;
-      }
-
-  if (stream_id == -1)
-    return -1;
-
-  AVCodecContext *pCodecCtx = pFormatCtx->streams[stream_id]->codec;
-  AVCodec *pCodec;
-  pCodec = avcodec_find_decoder(pCodecCtx->codec_id);
-  if (pCodec==NULL)
-    return -1;
-
-  if (avcodec_open(pCodecCtx, pCodec)<0)
-    return -1;
-
-
-  //    printf("\n%s \n",argv[1]);
-  
-  AVPacket Packet;
-  int count = 0; 
-  int key_packets = 0;
-  int non_key_packets = 0;
-
-  int frame_count = 0;
-  int key_frames = 0;
-  int non_key_frames = 0;
-
-  AVFrame *pFrame;
-  pFrame=avcodec_alloc_frame();
-  int frameFinished;
-
-  seek_table_type table;
-  table = seek_init_table (16);
-  seek_entry_type entry;
-  
-  int64_t key_packet_dts;
-  int64_t prev_packet_dts = AV_NOPTS_VALUE;
-  int64_t first_packet_dts;  /* ensure first keyframe gets first packet */
-
-  int is_first_packet = 1;
-  int frames_have_label = 1;
-
-  //  const char *format_name = pFormatCtx->iformat->name;
-  //  const char *codec_name = pFormatCtx->streams[stream_id]->codec->codec->name;
-
-  
-  /* these avi formats do not have labeled keyframes (the packets are labeled only and the packets and keyframe align 1-to-1 */
-  /* DISABLING THIS TYPE OF GENERATION (these videos will be unseekable) */
-  //  fprintf(stderr, "format: (%s) codec: (%s)\n", format_name, codec_name);
-/* 
- *   if (!strcmp(format_name, "avi"))
- *     if (!strcmp(codec_name, "aasc")        ||
- * 	!strcmp(codec_name, "camtasia")    ||
- * 	!strcmp(codec_name, "cinepak")     ||
- * 	!strcmp(codec_name, "cyuv")        ||
- * 	!strcmp(codec_name, "huffyuv")     ||
- * 	!strcmp(codec_name, "indeo2")      ||
- * 	!strcmp(codec_name, "indeo3")      ||
- * 	!strcmp(codec_name, "msrle")       ||
- * 	!strcmp(codec_name, "msvideo1")    ||
- * 	!strcmp(codec_name, "mszh")        ||
- * 	!strcmp(codec_name, "qpeg")        ||
- * 	!strcmp(codec_name, "truemotion1") ||
- * 	!strcmp(codec_name, "ultimotion")  ||
- * 	!strcmp(codec_name, "vp3")         ||
- * 	!strcmp(codec_name, "zlib"))
- *       frames_have_label = 0;
- */
-
-  while (av_read_frame(pFormatCtx, &Packet) >= 0)
-    {      
-      if (Packet.stream_index == stream_id)
-	{	  
-	  //	  fprintf(stderr, "Packet: (P%d: %lld %lld %d)\n", count, Packet.pts, Packet.dts, Packet.flags);
-	  if ((Packet.flags & PKT_FLAG_KEY) || is_first_packet )
-	    {	      		
-	      /* when keyframes overlap in the stream, that means multiple packets labeled 'keyframe' will arrive before 
-		 the keyframe itself. this results in wrong assignments all around, but only the first one needs to be right.
-		 for all the rest, the seek-code will rewind to the previous keyframe to get them right.
-	       */
-	      if (is_first_packet)
-		{    
-		  first_packet_dts = Packet.dts;
-		  is_first_packet = 0;
-		}
-
-	      //	      fprintf(stderr, "Packet: (P%d: %lld %lld)\n", count, Packet.pts, Packet.dts);
-
-	      /* first keyframe gets own dts, others get previous packet's dts.. this is workaround for some mpegs    */
-	      /* sometimes you need the previous packet from the supposed keyframe packet to get a frame back that is */
-	      /* actually a keyframe */
-
-	      if (prev_packet_dts == AV_NOPTS_VALUE)
-		key_packet_dts = Packet.dts;
-	      else
-		key_packet_dts = prev_packet_dts;
-
-	      if (Packet.flags & PKT_FLAG_KEY)
-		key_packets++;
-	      else
-		non_key_packets++;
-	    }
-	  else
-	    non_key_packets++;
-
-
-	  avcodec_decode_video(pCodecCtx, pFrame, &frameFinished, Packet.data, Packet.size);
-
-	  if (frameFinished)
-	    {
-
-	      //	      fprintf(stderr, "Frame : (P%d F%d: %lld %lld L:%d)\n", count, frame_count, Packet.pts, Packet.dts, pFrame->key_frame);
-	      if ((pFrame->key_frame && frames_have_label) || ((Packet.flags & PKT_FLAG_KEY) && !frames_have_label))
-		{
-		  key_frames++;
-		  
-		  entry.display_index = frame_count;
-		  entry.first_packet_dts = key_packet_dts;
-		  entry.last_packet_dts = Packet.dts;
-
-		  /* ensure first keyframe gets first packet dts */
-		  if (frame_count == 0)
-		    entry.first_packet_dts = first_packet_dts;
-
-		  seek_append_table_entry(&table, entry);
-
-		  //		  fprintf(stderr, "Frame : (P%d F%d: %lld %lld)\n", count, frame_count, Packet.pts, Packet.dts);
-		}
-	      else
-		non_key_frames++;
-	      frame_count++;
-	    }
-	  
-	  count++;			  
-	  prev_packet_dts = Packet.dts;
-	}
-
-      av_free_packet(&Packet);
-    }
-
-  //  printf("\n");
-
-  fprintf (stderr, "Packets: key: %d  nonkey: %d   total: %d\n", key_packets, non_key_packets, count);
-  fprintf (stderr, "Frames : key: %d  nonkey: %d   total: %d\n", key_frames, non_key_frames, frame_count);
-
-  table.completed = seek_true;
-  table.num_frames = frame_count;
-
-  seek_show_raw_table(stdout, table);
-
-  return 1;
-}