avi2swf/videoreader_avifile.cc

   1 /* videoreader_avifile.cc
   2    Read avi files using the avifile library.
   3
   4    Part of the swftools package.
   5
   6    Copyright (c) 2001,2002,2003 Matthias Kramm <kramm@quiss.org>
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
  21
  22 #include <stdlib.h>
  23 #include <stdio.h>
  24 #include <memory.h>
  25 #include "../config.h"
  26
  27 #undef HAVE_CONFIG_H
  28
  29 #ifdef HAVE_VERSION_H
  30   #include <version.h>
  31 #endif
  32 #ifdef HAVE_AVIFILE_VERSION_H
  33   #include <avifile/version.h>
  34 #endif
  35
  36 #if (AVIFILE_MAJOR_VERSION == 0) && (AVIFILE_MINOR_VERSION>=6)
  37    #include <avifile.h>
  38    #include <aviplay.h>
  39    #include <fourcc.h>
  40    #include <creators.h>
  41    #include <StreamInfo.h>
  42    #define VERSION6
  43 #else
  44    #include <avifile.h>
  45    #include <aviplay.h>
  46    #include <aviutil.h>
  47    #define Width width
  48    #define Height height
  49    #define Data data
  50    #define Bpp bpp
  51 #endif
  52
  53 #ifdef HAVE_SIGNAL_H
  54 #ifdef HAVE_PTHREAD_H
  55 #include <pthread.h>
  56 #include <signal.h>
  57 #define DO_SIGNALS
  58 #endif
  59 #endif
  60
  61 #include "../lib/q.h"
  62 #include "videoreader.h"
  63
  64 static int shutdown_avi2swf = 0;
  65 static int verbose = 0;
  66
  67 typedef struct _videoreader_avifile_internal
  68 {
  69     IAviReadFile* player;
  70     IAviReadStream* astream;
  71     IAviReadStream* vstream;
  72     int do_audio;
  73     int do_video;
  74     int eof;
  75     int flip;
  76     int frame;
  77     int soundbits;
  78     ringbuffer_t audio_buffer;
  79 } videoreader_avifile_internal;
  80
  81 static void readSamples(videoreader_avifile_internal*i, void*buffer, int buffer_size, int numsamples)
  82 {
  83     int ret;
  84     while(i->audio_buffer.available < buffer_size) {
  85         unsigned int samples_read = 0, bytes_read = 0;
  86         ret = i->astream->ReadFrames(buffer, buffer_size, numsamples, samples_read, bytes_read);
  87         if(samples_read<=0)
  88             return;
  89         ringbuffer_put(&i->audio_buffer, buffer, bytes_read);
  90     }
  91     ringbuffer_read(&i->audio_buffer, buffer, buffer_size);
  92 }
  93 static int videoreader_avifile_getsamples(videoreader_t* v, void*buffer, int num)
  94 {
  95     if(verbose) {
  96         printf("videoreader_getsamples(%d)\n", num);fflush(stdout);
  97     }
  98     videoreader_avifile_internal*i = (videoreader_avifile_internal*)v->internal;
  99     if(i->soundbits == 8) {
 100         readSamples(i, buffer, num/2, num/(v->channels*2));
 101         unsigned char*b = (unsigned char*)buffer;
 102         int t;
 103         for(t=num-2;t>=0;t-=2) {
 104             unsigned char x = b[t/2];
 105             b[t] = 0;
 106             b[t+1] = x-128;
 107         }
 108         return num;
 109     }
 110     if(i->soundbits == 16) {
 111         readSamples(i, buffer, num, num/(v->channels*2));
 112         return num;
 113     }
 114     return 0;
 115 }
 116 static int videoreader_avifile_getimage(videoreader_t* v, void*buffer)
 117 {
 118     videoreader_avifile_internal*i = (videoreader_avifile_internal*)v->internal;
 119     if(verbose) {
 120         printf("videoreader_getimage()\n");fflush(stdout);
 121     }
 122
 123     if(shutdown_avi2swf)
 124         i->eof = 1;
 125
 126     if(i->eof)
 127         return 0;
 128
 129     if(i->vstream->ReadFrame() < 0) {
 130         if(verbose) printf("vstream->ReadFrame() returned value < 0, shutting down...\n");
 131         i->eof = 1;
 132         return 0;
 133     }
 134     CImage*img2 = 0;
 135     CImage*img = i->vstream->GetFrame();
 136     if(!img) {
 137         if(verbose) printf("vstream->GetFrame() returned NULL, shutting down...\n");
 138         i->eof = 1;
 139         return 0;
 140     }
 141     /* we convert the image to YUV first, because we can convert to RGB from YUV only */
 142     img->ToYUV();
 143     img->ToRGB();
 144     if(img->Bpp() != 3) {
 145         if(verbose) printf("Warning: converthing from bpp %d to bpp 3, this fails on older avifile versions...\n", img->Bpp());
 146         BitmapInfo tmp(v->width, v->height, 24);
 147         img2 = new CImage(img, &tmp);
 148         img = img2;
 149     }
 150
 151     v->frame++;
 152     i->frame++;
 153     unsigned char*data = img->Data();
 154     int bpp = img->Bpp();
 155     if(bpp == 3) {
 156         int x,y;
 157         for(y=0;y<v->height;y++) {
 158             unsigned char*from,*to;
 159             to = &((unsigned char*)buffer)[y*v->width*4];
 160             if(i->flip)
 161                 from = img->At(v->height-y-1);
 162             else
 163                 from = img->At(y);
 164             for(x=0;x<v->width;x++) {
 165                 to[x*4+0] = 0;
 166                 to[x*4+1] = from[x*3+2];
 167                 to[x*4+2] = from[x*3+1];
 168                 to[x*4+3] = from[x*3+0];
 169             }
 170         }
 171         if(img2) delete img2;
 172         return v->width*v->height*4;
 173     } else {
 174         if(img2) delete img2;
 175         if(verbose) printf("Can't handle bpp %d, shutting down...\n", bpp);
 176         return 0;
 177     }
 178 }
 179 static bool videoreader_avifile_eof(videoreader_t* v)
 180 {
 181     videoreader_avifile_internal*i = (videoreader_avifile_internal*)v->internal;
 182     if(verbose) {
 183         printf("videoreader_eof()\n");fflush(stdout);
 184     }
 185     return i->eof;
 186 }
 187 static void videoreader_avifile_close(videoreader_t* v)
 188 {
 189     videoreader_avifile_internal*i = (videoreader_avifile_internal*)v->internal;
 190     if(verbose) {
 191         printf("videoreader_close()\n");fflush(stdout);
 192     }
 193     if(i->do_audio) {
 194         ringbuffer_clear(&i->audio_buffer);
 195     }
 196 }
 197 static void videoreader_avifile_setparameter(videoreader_t*v, char*name, char*value)
 198 {
 199     videoreader_avifile_internal*i = (videoreader_avifile_internal*)v->internal;
 200     if(!strcmp(name, "verbose")) {
 201         verbose = atoi(value);
 202     }
 203     if(!strcmp(name, "flip")) {
 204         i->flip = atoi(value);
 205     }
 206     if(verbose) {
 207         printf("videoreader_setparameter(%s, %s)\n", name, value);fflush(stdout);
 208     }
 209 }
 210
 211 int videoreader_avifile_open(videoreader_t* v, char* filename)
 212 {
 213     videoreader_avifile_internal* i;
 214     i = (videoreader_avifile_internal*)malloc(sizeof(videoreader_avifile_internal));
 215     memset(i, 0, sizeof(videoreader_avifile_internal));
 216     memset(v, 0, sizeof(videoreader_t));
 217     v->getsamples = videoreader_avifile_getsamples;
 218     v->close = videoreader_avifile_close;
 219     v->eof = videoreader_avifile_eof;
 220     v->getimage = videoreader_avifile_getimage;
 221     v->getsamples = videoreader_avifile_getsamples;
 222     v->setparameter = videoreader_avifile_setparameter;
 223     v->internal = i;
 224     v->frame = 0;
 225
 226     i->do_video = 1;
 227     i->do_audio = 1;
 228
 229     i->player = CreateIAviReadFile(filename);
 230     if(verbose) {
 231         printf("%d streams (%d video, %d audio)\n",
 232                 i->player->StreamCount(),
 233                 i->player->VideoStreamCount(),
 234                 i->player->AudioStreamCount());
 235     }
 236     i->astream = i->player->GetStream(0, AviStream::Audio);
 237     i->vstream = i->player->GetStream(0, AviStream::Video);
 238     if(!i->vstream) {
 239         printf("Couldn't open video stream\n");
 240         i->do_video = 0;
 241     }
 242     if(!i->astream) {
 243         printf("Couldn't open video stream\n");
 244         i->do_audio = 0;
 245     }
 246 #ifdef NO_MP3
 247     if(i->do_audio) {
 248         printf(stderr, "MP3 support has been disabled at compile time, not converting soundtrack");
 249         i->do_audio = 0;
 250     }
 251 #endif
 252
 253     if(!i->do_video && !i->do_audio) {
 254         printf("File has neither audio nor video streams.(?)\n");
 255         return 0;
 256     }
 257
 258 #ifndef VERSION6
 259     MainAVIHeader head;
 260     int dwMicroSecPerFrame = 0;
 261     player->GetFileHeader(&head);
 262     printf("fps: %d\n", 1000000/head.dwMicroSecPerFrame);
 263     printf("frames: %d\n", head.dwTotalFrames);
 264     printf("streams: %d\n", head.dwStreams);
 265     printf("width: %d\n", head.dwWidth);
 266     printf("height: %d\n", head.dwHeight);
 267     printf("sound: %u samples (%f seconds)\n", i->astream->GetEndPos(), i->astream->GetEndTime());
 268     v->width = head.dwWidth;
 269     v->height = head.dwHeight;
 270     dwMicroSecPerFrame = head.dwMicroSecPerFrame;
 271     samplesperframe = astream->GetEndPos()/astream->GetEndTime()*head.dwMicroSecPerFrame/1000000;
 272     v->samplerate = (int)(astream->GetEndPos()/astream->GetEndTime());
 273     v->fps = 1000000.0/dwMicroSecPerFrame;
 274     i->soundbits = 16;
 275 #else
 276     if(i->do_video)
 277     {
 278         StreamInfo*videoinfo;
 279         videoinfo = i->vstream->GetStreamInfo();
 280         v->width = videoinfo->GetVideoWidth();
 281         v->height = videoinfo->GetVideoHeight();
 282         v->fps = (double)(videoinfo->GetFps());
 283     }
 284     if(i->do_audio)
 285     {
 286         WAVEFORMATEX wave;
 287         StreamInfo*audioinfo;
 288
 289         i->astream->GetAudioFormatInfo(&wave,0);
 290         audioinfo = i->astream->GetStreamInfo();
 291
 292         v->channels = wave.nChannels;
 293         v->samplerate = wave.nSamplesPerSec;
 294         i->soundbits = wave.wBitsPerSample;
 295
 296         if(v->channels==0 || v->samplerate==0 || i->soundbits==0 || wave.wFormatTag!=1) {
 297             v->samplerate = audioinfo->GetAudioSamplesPerSec();
 298             v->channels = audioinfo->GetAudioChannels();
 299             i->soundbits = audioinfo->GetAudioBitsPerSample();
 300         }
 301
 302         if(verbose) {
 303             printf("formatinfo: format %d, %d channels, %d bits/sample, rate %d, blockalign %d\n", wave.wFormatTag, wave.nChannels, wave.wBitsPerSample, wave.nSamplesPerSec, wave.nBlockAlign);
 304             printf("audioinfo: %d channels, %d bits/sample, rate %d\n", audioinfo->GetAudioChannels(), audioinfo->GetAudioBitsPerSample(), audioinfo->GetAudioSamplesPerSec());
 305         }
 306         if(i->soundbits != 8 && i->soundbits != 16) {
 307             printf("Can't handle %d bit audio, disabling sound\n", wave.wBitsPerSample);
 308             i->do_audio = 0;
 309             i->soundbits = 0;
 310             v->channels = 0;
 311             v->samplerate = 0;
 312         }
 313     }
 314 #endif
 315     i->vstream -> StartStreaming();
 316     if(i->do_audio) {
 317         i->astream -> StartStreaming();
 318         ringbuffer_init(&i->audio_buffer);
 319 #ifdef VERSION6
 320         WAVEFORMATEX wave;
 321         i->astream -> GetOutputFormat(&wave, sizeof(wave));
 322         printf("formatinfo: format %d, %d channels, %d bits/sample, rate %d, blockalign %d\n", wave.wFormatTag, wave.nChannels, wave.wBitsPerSample, wave.nSamplesPerSec, wave.nBlockAlign);
 323 #endif
 324     }
 325
 326     return 1;
 327 }
 328