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 <fourcc.h>
  43    #include <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(samples_read<=0) {
  90             int l = i->audio_buffer.available;
  91             ringbuffer_read(&i->audio_buffer, buffer, l);
  92             return l;
  93         }
  94         ringbuffer_put(&i->audio_buffer, buffer, bytes_read);
  95     }
  96     ringbuffer_read(&i->audio_buffer, buffer, buffer_size);
  97     return buffer_size;
  98 }
  99 static int videoreader_avifile_getsamples(videoreader_t* v, void*buffer, int num)
 100 {
 101     videoreader_avifile_internal*i = (videoreader_avifile_internal*)v->internal;
 102     if(verbose) {
 103         printf("videoreader_getsamples(%d)\n", num);fflush(stdout);
 104     }
 105     if(i->audio_eof)
 106         return 0;
 107     if(i->soundbits == 8) {
 108         int num_read = readSamples(i, buffer, num/2, num/(v->channels*2))*2;
 109         unsigned char*b = (unsigned char*)buffer;
 110         int t;
 111         for(t=num_read-2;t>=0;t-=2) {
 112             unsigned char x = b[t/2];
 113             b[t] = 0;
 114             b[t+1] = x-128;
 115         }
 116         if(!num_read) i->audio_eof=1;
 117         return num_read;
 118     }
 119     if(i->soundbits == 16) {
 120         int num_read = readSamples(i, buffer, num, num/(v->channels*2));
 121         if(!num_read) i->audio_eof=1;
 122         return num_read;
 123     }
 124     return 0;
 125 }
 126 static int videoreader_avifile_getimage(videoreader_t* v, void*buffer)
 127 {
 128     videoreader_avifile_internal*i = (videoreader_avifile_internal*)v->internal;
 129     if(verbose) {
 130         printf("videoreader_getimage()\n");fflush(stdout);
 131     }
 132
 133     if(i->video_eof)
 134         return 0;
 135
 136     if(i->vstream->ReadFrame() < 0) {
 137         if(verbose) printf("vstream->ReadFrame() returned value < 0, shutting down...\n");
 138         i->video_eof = 1;
 139         return 0;
 140     }
 141     CImage*img2 = 0;
 142     CImage*img = i->vstream->GetFrame();
 143     if(!img) {
 144         if(verbose) printf("vstream->GetFrame() returned NULL, shutting down...\n");
 145         i->video_eof = 1;
 146         return 0;
 147     }
 148     /* we convert the image to YUV first, because we can convert to RGB from YUV only */
 149     img->ToYUV();
 150     img->ToRGB();
 151     if(img->Bpp() != 3) {
 152         if(verbose) printf("Warning: converthing from bpp %d to bpp 3, this fails on older avifile versions...\n", img->Bpp());
 153         BitmapInfo tmp(v->width, v->height, 24);
 154         img2 = new CImage(img, &tmp);
 155         img = img2;
 156     }
 157
 158     v->frame++;
 159     i->frame++;
 160     unsigned char*data = img->Data();
 161     int bpp = img->Bpp();
 162     if(bpp == 3) {
 163         int x,y;
 164         for(y=0;y<v->height;y++) {
 165             unsigned char*from,*to;
 166             to = &((unsigned char*)buffer)[y*v->width*4];
 167             if(i->flip)
 168                 from = img->At(v->height-y-1);
 169             else
 170                 from = img->At(y);
 171             for(x=0;x<v->width;x++) {
 172                 to[x*4+0] = 0;
 173                 to[x*4+1] = from[x*3+2];
 174                 to[x*4+2] = from[x*3+1];
 175                 to[x*4+3] = from[x*3+0];
 176             }
 177         }
 178         if(img2) delete img2;
 179         return v->width*v->height*4;
 180     } else {
 181         if(img2) delete img2;
 182         if(verbose) printf("Can't handle bpp %d, shutting down...\n", bpp);
 183         i->video_eof = 1;
 184         return 0;
 185     }
 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     if(!filename) {
 214         /* codec query */
 215         return 0;
 216     }
 217     videoreader_avifile_internal* i;
 218     i = (videoreader_avifile_internal*)malloc(sizeof(videoreader_avifile_internal));
 219     memset(i, 0, sizeof(videoreader_avifile_internal));
 220     memset(v, 0, sizeof(videoreader_t));
 221     v->getsamples = videoreader_avifile_getsamples;
 222     v->close = videoreader_avifile_close;
 223     v->getimage = videoreader_avifile_getimage;
 224     v->getsamples = videoreader_avifile_getsamples;
 225     v->setparameter = videoreader_avifile_setparameter;
 226     v->internal = i;
 227     v->frame = 0;
 228
 229     i->do_video = 1;
 230     i->do_audio = 1;
 231
 232     i->player = CreateIAviReadFile(filename);
 233     if(verbose) {
 234         printf("%d streams (%d video, %d audio)\n",
 235                 i->player->StreamCount(),
 236                 i->player->VideoStreamCount(),
 237                 i->player->AudioStreamCount());
 238     }
 239     i->astream = i->player->GetStream(0, AviStream::Audio);
 240     i->vstream = i->player->GetStream(0, AviStream::Video);
 241     if(!i->vstream) {
 242         printf("Couldn't open video stream\n");
 243         i->do_video = 0;
 244     }
 245     if(!i->astream) {
 246         printf("Couldn't open video stream\n");
 247         i->do_audio = 0;
 248     }
 249 #ifdef NO_MP3
 250     if(i->do_audio) {
 251         printf(stderr, "MP3 support has been disabled at compile time, not converting soundtrack");
 252         i->do_audio = 0;
 253     }
 254 #endif
 255
 256     if(!i->do_video && !i->do_audio) {
 257         printf("File has neither audio nor video streams.(?)\n");
 258         return -1;
 259     }
 260
 261 #ifndef VERSION6
 262     MainAVIHeader head;
 263     int dwMicroSecPerFrame = 0;
 264     player->GetFileHeader(&head);
 265     printf("fps: %d\n", 1000000/head.dwMicroSecPerFrame);
 266     printf("frames: %d\n", head.dwTotalFrames);
 267     printf("streams: %d\n", head.dwStreams);
 268     printf("width: %d\n", head.dwWidth);
 269     printf("height: %d\n", head.dwHeight);
 270     printf("sound: %u samples (%f seconds)\n", i->astream->GetEndPos(), i->astream->GetEndTime());
 271     v->width = head.dwWidth;
 272     v->height = head.dwHeight;
 273     dwMicroSecPerFrame = head.dwMicroSecPerFrame;
 274     samplesperframe = astream->GetEndPos()/astream->GetEndTime()*head.dwMicroSecPerFrame/1000000;
 275     v->samplerate = (int)(astream->GetEndPos()/astream->GetEndTime());
 276     v->fps = 1000000.0/dwMicroSecPerFrame;
 277     i->soundbits = 16;
 278 #else
 279     if(i->do_video)
 280     {
 281         StreamInfo*videoinfo;
 282         videoinfo = i->vstream->GetStreamInfo();
 283         v->width = videoinfo->GetVideoWidth();
 284         v->height = videoinfo->GetVideoHeight();
 285         v->fps = (double)(videoinfo->GetFps());
 286     }
 287     if(i->do_audio)
 288     {
 289         WAVEFORMATEX wave;
 290         StreamInfo*audioinfo;
 291
 292         i->astream->GetAudioFormatInfo(&wave,0);
 293         audioinfo = i->astream->GetStreamInfo();
 294
 295         v->channels = wave.nChannels;
 296         v->samplerate = wave.nSamplesPerSec;
 297         i->soundbits = wave.wBitsPerSample;
 298
 299         if(v->channels==0 || v->samplerate==0 || i->soundbits==0 || wave.wFormatTag!=1) {
 300             v->samplerate = audioinfo->GetAudioSamplesPerSec();
 301             v->channels = audioinfo->GetAudioChannels();
 302             i->soundbits = audioinfo->GetAudioBitsPerSample();
 303         }
 304
 305         if(verbose) {
 306             printf("formatinfo: format %d, %d channels, %d bits/sample, rate %d, blockalign %d\n", wave.wFormatTag, wave.nChannels, wave.wBitsPerSample, wave.nSamplesPerSec, wave.nBlockAlign);
 307             printf("audioinfo: %d channels, %d bits/sample, rate %d\n", audioinfo->GetAudioChannels(), audioinfo->GetAudioBitsPerSample(), audioinfo->GetAudioSamplesPerSec());
 308         }
 309         if(i->soundbits != 8 && i->soundbits != 16) {
 310             printf("Can't handle %d bit audio, disabling sound\n", wave.wBitsPerSample);
 311             i->do_audio = 0;
 312             i->soundbits = 0;
 313             v->channels = 0;
 314             v->samplerate = 0;
 315         }
 316     }
 317 #endif
 318     i->vstream -> StartStreaming();
 319     if(i->do_audio) {
 320         i->astream -> StartStreaming();
 321         ringbuffer_init(&i->audio_buffer);
 322 #ifdef VERSION6
 323         WAVEFORMATEX wave;
 324         i->astream -> GetOutputFormat(&wave, sizeof(wave));
 325         printf("formatinfo: format %d, %d channels, %d bits/sample, rate %d, blockalign %d\n", wave.wFormatTag, wave.nChannels, wave.wBitsPerSample, wave.nSamplesPerSec, wave.nBlockAlign);
 326 #endif
 327     }
 328
 329     return 0;
 330 }
 331
 332 #else  //HAVE_AVIFILE
 333
 334 int videoreader_avifile_open(videoreader_t* v, char* filename)
 335 {
 336     return -1;
 337 }
 338
 339 #endif //HAVE_AVIFILE