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 #include "videoreader.h"
  27
  28 #ifdef HAVE_AVIFILE
  29
  30 #undef HAVE_CONFIG_H
  31
  32 #ifdef HAVE_VERSION_H
  33   #include <version.h>
  34 #endif
  35 #ifdef HAVE_AVIFILE_VERSION_H
  36   #include <avifile/version.h>
  37 #endif
  38
  39 #if (AVIFILE_MAJOR_VERSION == 0) && (AVIFILE_MINOR_VERSION>=6)
  40    #include <avifile.h>
  41    #include <aviplay.h>
  42    #include <avm_fourcc.h>
  43    #include <avm_creators.h>
  44    #include <StreamInfo.h>
  45    #define VERSION6
  46 #else
  47    #include <avifile.h>
  48    #include <aviplay.h>
  49    #include <aviutil.h>
  50    #define Width width
  51    #define Height height
  52    #define Data data
  53    #define Bpp bpp
  54 #endif
  55
  56 #ifdef HAVE_SIGNAL_H
  57 #ifdef HAVE_PTHREAD_H
  58 #include <pthread.h>
  59 #include <signal.h>
  60 #define DO_SIGNALS
  61 #endif
  62 #endif
  63
  64 #include "../lib/q.h"
  65
  66 static int verbose = 0;
  67
  68 typedef struct _videoreader_avifile_internal
  69 {
  70     IAviReadFile* player;
  71     IAviReadStream* astream;
  72     IAviReadStream* vstream;
  73     int do_audio;
  74     int do_video;
  75     int video_eof;
  76     int audio_eof;
  77     int flip;
  78     int frame;
  79     int soundbits;
  80     ringbuffer_t audio_buffer;
  81 } videoreader_avifile_internal;
  82
  83 static int readSamples(videoreader_avifile_internal*i, void*buffer, int buffer_size, int numsamples)
  84 {
  85     int ret;
  86     while(i->audio_buffer.available < buffer_size) {
  87         unsigned int samples_read = 0, bytes_read = 0;
  88         ret = i->astream->ReadFrames(buffer, buffer_size, numsamples, samples_read, bytes_read);
  89         if(ret!=0) {
  90             if(verbose) {
  91                 printf("ReadFrames() returns %d\n", ret);fflush(stdout);
  92             }
  93         }
  94         if(samples_read<=0) {
  95             int l = i->audio_buffer.available;
  96             ringbuffer_read(&i->audio_buffer, buffer, l);
  97             return l;
  98         }
  99         ringbuffer_put(&i->audio_buffer, buffer, bytes_read);
 100     }
 101     ringbuffer_read(&i->audio_buffer, buffer, buffer_size);
 102     return buffer_size;
 103 }
 104 static int videoreader_avifile_getsamples(videoreader_t* v, void*buffer, int num)
 105 {
 106     videoreader_avifile_internal*i = (videoreader_avifile_internal*)v->internal;
 107     if(verbose) {
 108         printf("videoreader_getsamples(%d)\n", num);fflush(stdout);
 109     }
 110     if(i->audio_eof)
 111         return 0;
 112     if(i->soundbits == 8) {
 113         int num_read = readSamples(i, buffer, num/2, num/(v->channels*2))*2;
 114         unsigned char*b = (unsigned char*)buffer;
 115         int t;
 116         for(t=num_read-2;t>=0;t-=2) {
 117             unsigned char x = b[t/2];
 118             b[t] = 0;
 119             b[t+1] = x-128;
 120         }
 121         if(!num_read) {
 122             if(verbose) {
 123                 printf("end of audio\n");fflush(stdout);
 124             }
 125             i->audio_eof=1;
 126         }
 127         return num_read;
 128     }
 129     if(i->soundbits == 16) {
 130         int num_read = readSamples(i, buffer, num, num/(v->channels*2));
 131         if(!num_read)  {
 132             if(verbose) {
 133                 printf("end of audio\n");fflush(stdout);
 134             }
 135             i->audio_eof=1;
 136         }
 137         return num_read;
 138     }
 139     return 0;
 140 }
 141 static int videoreader_avifile_getimage(videoreader_t* v, void*buffer)
 142 {
 143     videoreader_avifile_internal*i = (videoreader_avifile_internal*)v->internal;
 144     if(verbose) {
 145         printf("videoreader_getimage()\n");fflush(stdout);
 146     }
 147
 148     if(i->video_eof)
 149         return 0;
 150
 151     if(i->vstream->ReadFrame() < 0) {
 152         if(verbose) printf("vstream->ReadFrame() returned value < 0, shutting down...\n");
 153         i->video_eof = 1;
 154         return 0;
 155     }
 156     CImage*img2 = 0;
 157     CImage*img = i->vstream->GetFrame();
 158     if(!img) {
 159         if(verbose) printf("vstream->GetFrame() returned NULL, shutting down...\n");
 160         i->video_eof = 1;
 161         return 0;
 162     }
 163     /* we convert the image to YUV first, because we can convert to RGB from YUV only */
 164     img->ToYUV();
 165     img->ToRGB();
 166     if(img->Bpp() != 3) {
 167         if(verbose) printf("Warning: converthing from bpp %d to bpp 3, this fails on older avifile versions...\n", img->Bpp());
 168         BitmapInfo tmp(v->width, v->height, 24);
 169         img2 = new CImage(img, &tmp);
 170         img = img2;
 171     }
 172
 173     v->frame++;
 174     i->frame++;
 175     unsigned char*data = img->Data();
 176     int bpp = img->Bpp();
 177     if(bpp == 3) {
 178         int x,y;
 179         for(y=0;y<v->height;y++) {
 180             unsigned char*from,*to;
 181             to = &((unsigned char*)buffer)[y*v->width*4];
 182             if(i->flip)
 183                 from = img->At(v->height-y-1);
 184             else
 185                 from = img->At(y);
 186             for(x=0;x<v->width;x++) {
 187                 to[x*4+0] = 0;
 188                 to[x*4+1] = from[x*3+2];
 189                 to[x*4+2] = from[x*3+1];
 190                 to[x*4+3] = from[x*3+0];
 191             }
 192         }
 193         if(img2) delete img2;
 194         return v->width*v->height*4;
 195     } else {
 196         if(img2) delete img2;
 197         if(verbose) printf("Can't handle bpp %d, shutting down...\n", bpp);
 198         i->video_eof = 1;
 199         return 0;
 200     }
 201 }
 202 static void videoreader_avifile_close(videoreader_t* v)
 203 {
 204     videoreader_avifile_internal*i = (videoreader_avifile_internal*)v->internal;
 205     if(verbose) {
 206         printf("videoreader_close()\n");fflush(stdout);
 207     }
 208     if(i->do_audio) {
 209         ringbuffer_clear(&i->audio_buffer);
 210     }
 211 }
 212 static void videoreader_avifile_setparameter(videoreader_t*v, char*name, char*value)
 213 {
 214     videoreader_avifile_internal*i = (videoreader_avifile_internal*)v->internal;
 215     if(!strcmp(name, "verbose")) {
 216         verbose = atoi(value);
 217     }
 218     if(!strcmp(name, "flip")) {
 219         i->flip = atoi(value);
 220     }
 221     if(verbose) {
 222         printf("videoreader_setparameter(%s, %s)\n", name, value);fflush(stdout);
 223     }
 224 }
 225
 226 int videoreader_avifile_open(videoreader_t* v, char* filename)
 227 {
 228     if(!filename) {
 229         /* codec query */
 230         return 0;
 231     }
 232     videoreader_avifile_internal* i;
 233     i = (videoreader_avifile_internal*)malloc(sizeof(videoreader_avifile_internal));
 234     memset(i, 0, sizeof(videoreader_avifile_internal));
 235     memset(v, 0, sizeof(videoreader_t));
 236     v->getsamples = videoreader_avifile_getsamples;
 237     v->close = videoreader_avifile_close;
 238     v->getimage = videoreader_avifile_getimage;
 239     v->getsamples = videoreader_avifile_getsamples;
 240     v->setparameter = videoreader_avifile_setparameter;
 241     v->internal = i;
 242     v->frame = 0;
 243
 244     i->do_video = 1;
 245     i->do_audio = 1;
 246
 247     i->player = CreateIAviReadFile(filename);
 248     if(verbose) {
 249         printf("%d streams (%d video, %d audio)\n",
 250                 i->player->StreamCount(),
 251                 i->player->VideoStreamCount(),
 252                 i->player->AudioStreamCount());
 253     }
 254     i->astream = i->player->GetStream(0, AviStream::Audio);
 255     i->vstream = i->player->GetStream(0, AviStream::Video);
 256     if(!i->vstream) {
 257         printf("Couldn't open video stream\n");
 258         i->do_video = 0;
 259     }
 260     if(!i->astream) {
 261         printf("Couldn't open video stream\n");
 262         i->do_audio = 0;
 263     }
 264 #ifdef NO_MP3
 265     if(i->do_audio) {
 266         printf(stderr, "MP3 support has been disabled at compile time, not converting soundtrack");
 267         i->do_audio = 0;
 268     }
 269 #endif
 270
 271     if(!i->do_video && !i->do_audio) {
 272         printf("File has neither audio nor video streams.(?)\n");
 273         return -1;
 274     }
 275
 276 #ifndef VERSION6
 277     MainAVIHeader head;
 278     int dwMicroSecPerFrame = 0;
 279     player->GetFileHeader(&head);
 280     printf("fps: %d\n", 1000000/head.dwMicroSecPerFrame);
 281     printf("frames: %d\n", head.dwTotalFrames);
 282     printf("streams: %d\n", head.dwStreams);
 283     printf("width: %d\n", abs(head.dwWidth));
 284     printf("height: %d\n", abs(head.dwHeight));
 285     printf("sound: %u samples (%f seconds)\n", i->astream->GetEndPos(), i->astream->GetEndTime());
 286     v->width = abs(head.dwWidth);
 287     v->height = abs(head.dwHeight);
 288     dwMicroSecPerFrame = head.dwMicroSecPerFrame;
 289     samplesperframe = astream->GetEndPos()/astream->GetEndTime()*head.dwMicroSecPerFrame/1000000;
 290     v->samplerate = (int)(astream->GetEndPos()/astream->GetEndTime());
 291     v->fps = 1000000.0/dwMicroSecPerFrame;
 292     i->soundbits = 16;
 293 #else
 294     if(i->do_video)
 295     {
 296         StreamInfo*videoinfo;
 297         videoinfo = i->vstream->GetStreamInfo();
 298         v->width = abs(videoinfo->GetVideoWidth());
 299         v->height = abs(videoinfo->GetVideoHeight());
 300         v->fps = (double)(videoinfo->GetFps());
 301     }
 302     if(i->do_audio)
 303     {
 304         WAVEFORMATEX wave;
 305         StreamInfo*audioinfo;
 306
 307         i->astream->GetAudioFormatInfo(&wave,0);
 308         audioinfo = i->astream->GetStreamInfo();
 309
 310         v->channels = wave.nChannels;
 311         v->samplerate = wave.nSamplesPerSec;
 312         i->soundbits = wave.wBitsPerSample;
 313
 314         if(v->channels==0 || v->samplerate==0 || i->soundbits==0 || wave.wFormatTag!=1) {
 315             v->samplerate = audioinfo->GetAudioSamplesPerSec();
 316             v->channels = audioinfo->GetAudioChannels();
 317             i->soundbits = audioinfo->GetAudioBitsPerSample();
 318         }
 319
 320         if(verbose) {
 321             printf("formatinfo: format %d, %d channels, %d bits/sample, rate %d, blockalign %d\n", wave.wFormatTag, wave.nChannels, wave.wBitsPerSample, wave.nSamplesPerSec, wave.nBlockAlign);
 322             printf("audioinfo: %d channels, %d bits/sample, rate %d\n", audioinfo->GetAudioChannels(), audioinfo->GetAudioBitsPerSample(), audioinfo->GetAudioSamplesPerSec());
 323         }
 324         if(i->soundbits != 8 && i->soundbits != 16) {
 325             printf("Can't handle %d bit audio, disabling sound\n", wave.wBitsPerSample);
 326             i->do_audio = 0;
 327             i->soundbits = 0;
 328             v->channels = 0;
 329             v->samplerate = 0;
 330         }
 331     }
 332 #endif
 333     i->vstream -> StartStreaming();
 334     if(i->do_audio) {
 335         i->astream -> StartStreaming();
 336         ringbuffer_init(&i->audio_buffer);
 337 #ifdef VERSION6
 338         WAVEFORMATEX wave;
 339         i->astream -> GetOutputFormat(&wave, sizeof(wave));
 340         printf("formatinfo: format %d, %d channels, %d bits/sample, rate %d, blockalign %d\n", wave.wFormatTag, wave.nChannels, wave.wBitsPerSample, wave.nSamplesPerSec, wave.nBlockAlign);
 341 #endif
 342     }
 343
 344     return 0;
 345 }
 346
 347 #else  //HAVE_AVIFILE
 348
 349 int videoreader_avifile_open(videoreader_t* v, char* filename)
 350 {
 351     return -1;
 352 }
 353
 354 #endif //HAVE_AVIFILE