[5939] | 1 | /* |
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| 2 | orxonox - the future of 3D-vertical-scrollers |
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| 3 | |
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| 4 | Copyright (C) 2004 orx |
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| 5 | |
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| 6 | This program is free software; you can redistribute it and/or modify |
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| 7 | it under the terms of the GNU General Public License as published by |
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| 8 | the Free Software Foundation; either version 2, or (at your option) |
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| 9 | any later version. |
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| 10 | |
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| 11 | ### File Specific: |
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[6486] | 12 | main-programmer: David Hasenfratz |
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[5939] | 13 | co-programmer: |
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| 14 | */ |
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| 15 | |
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| 16 | |
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| 17 | |
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| 18 | /* this is for debug output. It just says, that all calls to PRINT() belong to the DEBUG_MODULE_MEDIA module |
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| 19 | For more information refere to https://www.orxonox.net/cgi-bin/trac.cgi/wiki/DebugOutput |
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| 20 | */ |
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| 21 | #define DEBUG_MODULE_MEDIA |
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| 22 | |
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| 23 | |
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[6486] | 24 | // include your own header |
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[5939] | 25 | #include "movie_player.h" |
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| 26 | |
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[7193] | 27 | #include "util/loading/resource_manager.h" |
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[6510] | 28 | |
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[6486] | 29 | // header for debug output |
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[5939] | 30 | #include "debug.h" |
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| 31 | |
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| 32 | |
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[7221] | 33 | MoviePlayer::MoviePlayer(const std::string& filename) |
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[5939] | 34 | { |
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[6731] | 35 | // set the class id for the base object |
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| 36 | this->setClassID(CL_MOVIE_PLAYER, "MoviePlayer"); |
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[5939] | 37 | |
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[6731] | 38 | status = STOP; |
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| 39 | timer = 0; |
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| 40 | frame_number = 0; |
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| 41 | |
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| 42 | mediaLoaded = false; |
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| 43 | |
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[7221] | 44 | if (!filename.empty()) |
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| 45 | this->loadMovie(filename); |
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[5939] | 46 | } |
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| 47 | |
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[6731] | 48 | |
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| 49 | MoviePlayer::~MoviePlayer() |
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[6486] | 50 | { |
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[6731] | 51 | this->unloadMedia(); |
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[6486] | 52 | } |
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| 53 | |
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[6731] | 54 | void MoviePlayer::unloadMedia() |
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[5939] | 55 | { |
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[6731] | 56 | // check whether a movie is already loaded |
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| 57 | if(!mediaLoaded) |
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| 58 | return; |
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[5939] | 59 | |
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[6486] | 60 | if (glIsTexture(texture)) |
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| 61 | glDeleteTextures(1, &texture); |
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| 62 | |
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| 63 | // Free the RGB image |
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| 64 | delete [] buffer; |
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| 65 | av_free(RGB_frame); |
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| 66 | |
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| 67 | // Free the frame |
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| 68 | av_free(frame); |
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| 69 | |
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| 70 | // Close the codec |
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| 71 | avcodec_close(codec_context); |
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| 72 | |
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| 73 | // Close the video file |
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| 74 | av_close_input_file(format_context); |
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[5939] | 75 | |
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[6486] | 76 | status = STOP; |
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| 77 | timer = 0; |
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| 78 | frame_number = 0; |
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| 79 | |
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[6731] | 80 | mediaLoaded = false; |
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[6486] | 81 | |
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[5939] | 82 | } |
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| 83 | |
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[6731] | 84 | |
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[7221] | 85 | bool MoviePlayer::loadMovie(const std::string& filename) |
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[5939] | 86 | { |
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[6731] | 87 | this->unloadMedia(); |
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| 88 | |
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[7221] | 89 | if(filename.empty()) |
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[6731] | 90 | return false; |
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| 91 | // check whether file exists |
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| 92 | if(!ResourceManager::isInDataDir(filename)) |
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| 93 | { |
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[7221] | 94 | PRINTF(1)("Could not find %s\n", filename.c_str()); |
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[6731] | 95 | return false; |
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| 96 | } |
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| 97 | |
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[6486] | 98 | // register all formats and codecs |
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| 99 | av_register_all(); |
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[5939] | 100 | |
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[6486] | 101 | // Open video file |
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[7221] | 102 | if (av_open_input_file(&format_context, ResourceManager::getFullName(filename).c_str(), NULL, 0, NULL) !=0 ) |
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[6486] | 103 | { |
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[7221] | 104 | PRINTF(1)("Could not open %s\n", ResourceManager::getFullName(filename).c_str()); |
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[6486] | 105 | return false; |
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| 106 | } |
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| 107 | |
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| 108 | // Retrieve stream information |
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| 109 | if (av_find_stream_info(format_context) < 0) |
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| 110 | { |
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[7221] | 111 | PRINTF(1)("Could not find stream information in %s\n", ResourceManager::getFullName(filename).c_str()); |
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[6486] | 112 | return false; |
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| 113 | } |
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| 114 | |
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| 115 | // Find the first video stream and take it |
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| 116 | video_stream = av_find_default_stream_index(format_context); |
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| 117 | |
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| 118 | if(video_stream == -1) |
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| 119 | { |
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[7221] | 120 | PRINTF(1)("Could not find a video stream in %s\n", ResourceManager::getFullName(filename).c_str()); |
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[6486] | 121 | return false; |
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| 122 | } |
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| 123 | |
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| 124 | // Get a pointer to the codec context for the video stream |
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| 125 | codec_context = format_context->streams[video_stream]->codec; |
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| 126 | |
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| 127 | // Find the decoder for the video stream |
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| 128 | codec = avcodec_find_decoder(codec_context->codec_id); |
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| 129 | if (codec == NULL) |
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| 130 | { |
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| 131 | PRINTF(1)("Could not find codec\n"); |
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| 132 | return false; |
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| 133 | } |
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| 134 | |
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| 135 | // Open codec |
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| 136 | if (avcodec_open(codec_context, codec) < 0) |
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| 137 | { |
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| 138 | PRINTF(1)("Could not open codec\n"); |
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| 139 | return false; |
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| 140 | } |
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| 141 | |
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| 142 | // Allocate video frame |
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| 143 | frame = avcodec_alloc_frame(); |
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| 144 | RGB_frame = avcodec_alloc_frame(); |
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| 145 | |
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| 146 | // Determine required buffer size and allocate buffer |
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| 147 | num_bytes = avpicture_get_size(PIX_FMT_RGB24, codec_context->width, codec_context->height); |
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| 148 | buffer=new uint8_t[num_bytes]; |
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| 149 | |
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| 150 | // Assign appropriate parts of buffer to image planes in RGB_frame |
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| 151 | avpicture_fill((AVPicture *)RGB_frame, buffer, PIX_FMT_RGB24, codec_context->width, codec_context->height); |
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| 152 | |
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| 153 | // data buffer for the texture |
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| 154 | data = new uint8_t[codec_context->width*codec_context->height*3*sizeof(uint8_t)]; |
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| 155 | |
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| 156 | // Calculate fps |
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| 157 | fps = av_q2d(format_context->streams[video_stream]->r_frame_rate); |
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| 158 | // NOTE: fix this fps problem!! |
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| 159 | if(fps < 0 || fps > 1000) |
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| 160 | fps = 30; |
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| 161 | |
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| 162 | // duration |
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| 163 | duration = format_context->duration / 1000000LL; |
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| 164 | |
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| 165 | // create texture |
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| 166 | glGenTextures(1, &texture); |
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| 167 | glBindTexture(GL_TEXTURE_2D, texture); |
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| 168 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
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| 169 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
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| 170 | glTexImage2D(GL_TEXTURE_2D, |
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| 171 | 0, |
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| 172 | GL_RGB, |
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| 173 | 0, 0, |
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| 174 | 0, |
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| 175 | GL_RGB, |
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| 176 | GL_UNSIGNED_BYTE, |
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| 177 | NULL); |
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| 178 | glBindTexture(GL_TEXTURE_2D, 0); |
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| 179 | |
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[6731] | 180 | mediaLoaded = true; |
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[6486] | 181 | return true; |
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[5939] | 182 | } |
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| 183 | |
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[6486] | 184 | void MoviePlayer::getNextFrame() |
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[5939] | 185 | { |
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[6486] | 186 | // get next frame |
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| 187 | if(av_read_frame(format_context, &packet) >= 0) |
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| 188 | { |
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| 189 | // Is this a packet from the video stream? |
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| 190 | if(packet.stream_index == video_stream) |
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| 191 | { |
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| 192 | int frame_finished; |
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| 193 | // Decode video frame |
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| 194 | avcodec_decode_video(codec_context, frame, &frame_finished, |
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| 195 | packet.data, packet.size); |
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[5939] | 196 | |
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[6486] | 197 | // Free the packet that was allocated by av_read_frame |
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| 198 | av_free_packet(&packet); |
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[6600] | 199 | |
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[6486] | 200 | // Did we get a video frame? |
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| 201 | if(frame_finished) |
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| 202 | { |
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| 203 | frame_number++; |
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| 204 | //PRINTF(0)("frame_number: %i\n", frame_number); |
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| 205 | // Conversion from YUV to RGB |
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| 206 | // Most codecs return images in YUV 420 format |
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| 207 | // (one luminance and two chrominance channels, with the chrominance |
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| 208 | // channels samples at half the spatial resolution of the luminance channel) |
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| 209 | img_convert((AVPicture*)RGB_frame, PIX_FMT_RGB24, (AVPicture*)frame, |
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| 210 | codec_context->pix_fmt, codec_context->width, codec_context->height); |
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| 211 | |
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| 212 | for(int i = 0; i < codec_context->height; i++) |
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| 213 | memcpy(&data[i*codec_context->width*3], ((AVPicture*)RGB_frame)->data[0]+i * |
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| 214 | ((AVPicture*)RGB_frame)->linesize[0], |
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| 215 | codec_context->width*sizeof(uint8_t)*3); |
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| 216 | |
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| 217 | glBindTexture(GL_TEXTURE_2D, texture); |
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| 218 | // update the texture |
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| 219 | glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, |
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| 220 | codec_context->width, codec_context->height, |
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| 221 | GL_RGB, GL_UNSIGNED_BYTE, |
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| 222 | data); |
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| 223 | // build the MipMaps |
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| 224 | gluBuild2DMipmaps(GL_TEXTURE_2D, |
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| 225 | GL_RGB, |
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| 226 | codec_context->width, |
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| 227 | codec_context->height, |
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| 228 | GL_RGB, |
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| 229 | GL_UNSIGNED_BYTE, |
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| 230 | data); |
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| 231 | glBindTexture(GL_TEXTURE_2D, 0); |
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| 232 | |
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| 233 | } |
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| 234 | else |
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| 235 | { |
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| 236 | av_free_packet(&packet); |
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| 237 | this->getNextFrame(); |
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| 238 | } |
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| 239 | } |
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| 240 | else |
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| 241 | { |
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| 242 | av_free_packet(&packet); |
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| 243 | this->getNextFrame(); |
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| 244 | } |
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| 245 | } |
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| 246 | else |
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| 247 | this->stop(); |
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[5939] | 248 | } |
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| 249 | |
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[6486] | 250 | void MoviePlayer::skipFrame(int frames) |
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[5939] | 251 | { |
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[6600] | 252 | |
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[6486] | 253 | while(frames != 0) |
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| 254 | { |
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| 255 | if(av_read_frame(format_context, &packet) < 0) |
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| 256 | break; |
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| 257 | if(packet.stream_index == video_stream) |
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| 258 | { |
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| 259 | int frame_finished; |
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| 260 | // We have to decode the frame to not get ugly fragments |
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| 261 | avcodec_decode_video(codec_context, frame, &frame_finished, |
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| 262 | packet.data, packet.size); |
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[6600] | 263 | |
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[6486] | 264 | // Did we get a video frame? |
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| 265 | if(frame_finished) |
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| 266 | { |
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| 267 | frames--; |
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| 268 | frame_number++; |
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| 269 | } |
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| 270 | } |
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| 271 | av_free_packet(&packet); |
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| 272 | } |
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[6600] | 273 | |
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[6486] | 274 | this->getNextFrame(); |
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[5939] | 275 | |
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| 276 | } |
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| 277 | |
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[6486] | 278 | bool MoviePlayer::gotoFrame(int frames) |
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[5939] | 279 | { |
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[6731] | 280 | if(!mediaLoaded) |
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[6486] | 281 | { |
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| 282 | PRINTF(0)("Load first the media file with loadMovie\n"); |
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| 283 | return false; |
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| 284 | } |
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[5939] | 285 | |
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[6486] | 286 | int err; |
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| 287 | // seek doesnt work for the first two frames |
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| 288 | // you will get ugly fragments |
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| 289 | if(frames < 2) |
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| 290 | { |
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| 291 | // go to the begin of the video |
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| 292 | err = av_seek_frame(format_context, video_stream, 0, AVSEEK_FLAG_BACKWARD); |
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| 293 | if(err < 0) |
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| 294 | { |
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| 295 | PRINTF(1)("Could not seek to frame 0\n"); |
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| 296 | return false; |
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| 297 | } |
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| 298 | |
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| 299 | this->frame_number = 0; |
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| 300 | } |
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| 301 | else |
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| 302 | { |
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| 303 | // seeks to the nearest keyframe |
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| 304 | // NOTE: there is only about every 5s a keyframe! |
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| 305 | err = av_seek_frame(format_context, video_stream, frames, AVSEEK_FLAG_BACKWARD); |
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| 306 | if(err < 0) |
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| 307 | { |
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| 308 | PRINTF(1)("Could not seek to frame %i\n", frames); |
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| 309 | return false; |
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| 310 | } |
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[6600] | 311 | |
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[6486] | 312 | // go from the keyframe to the exact position |
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| 313 | codec_context->hurry_up = 1; |
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| 314 | do { |
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| 315 | if(av_read_frame(format_context, &packet) < 0) |
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| 316 | { |
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| 317 | PRINTF(1)("Could not seek to frame %i\n", frames); |
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| 318 | return false; |
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| 319 | } |
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| 320 | |
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| 321 | if(packet.stream_index == video_stream) |
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| 322 | { |
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| 323 | if(packet.pts >= frames-1) |
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| 324 | break; |
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| 325 | int frame_finished; |
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| 326 | avcodec_decode_video(codec_context, frame, &frame_finished, packet.data, packet.size); |
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| 327 | av_free_packet(&packet); |
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| 328 | } |
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| 329 | } while(1); |
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| 330 | codec_context->hurry_up = 0; |
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[6600] | 331 | |
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[6486] | 332 | this->frame_number = frames; |
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| 333 | } |
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[6600] | 334 | |
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[6486] | 335 | return true; |
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[5939] | 336 | } |
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| 337 | |
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[6486] | 338 | void MoviePlayer::start(float start_time) |
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[5939] | 339 | { |
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[6486] | 340 | //start_frame = start_time * fps; |
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| 341 | start_frame = 0; |
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[5939] | 342 | |
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[6486] | 343 | if(this->gotoFrame(start_frame)) |
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| 344 | { |
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| 345 | status = PLAY; |
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| 346 | timer = 0; |
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| 347 | } |
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[5939] | 348 | } |
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| 349 | |
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[6486] | 350 | void MoviePlayer::resume() |
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[5939] | 351 | { |
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[6486] | 352 | if(status == PAUSE) |
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| 353 | status = PLAY; |
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| 354 | } |
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[5939] | 355 | |
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[6486] | 356 | void MoviePlayer::pause() |
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| 357 | { |
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| 358 | if(status == PLAY) |
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| 359 | status = PAUSE; |
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[5939] | 360 | } |
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| 361 | |
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[6486] | 362 | void MoviePlayer::stop() |
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[5939] | 363 | { |
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[6486] | 364 | status = STOP; |
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[5939] | 365 | } |
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[5950] | 366 | |
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[6486] | 367 | void MoviePlayer::tick(float dt) |
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| 368 | { |
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| 369 | if(status == PLAY) |
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| 370 | { |
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| 371 | timer += dt; |
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[6600] | 372 | actual_frame = (int)(timer * fps + start_frame); |
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[6486] | 373 | if(actual_frame != frame_number) |
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| 374 | { |
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| 375 | if(actual_frame - frame_number == 1) |
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| 376 | this->getNextFrame(); |
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| 377 | else |
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| 378 | this->skipFrame(actual_frame - frame_number - 1); |
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[6600] | 379 | } |
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[6486] | 380 | } |
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| 381 | } |
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| 382 | |
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[6600] | 383 | GLuint MoviePlayer::getTexture() |
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| 384 | { |
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| 385 | return this->texture; |
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[6486] | 386 | } |
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| 387 | |
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| 388 | void MoviePlayer::setFPS(float fps) |
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| 389 | { |
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| 390 | if(fps > 0) |
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| 391 | this->fps = fps; |
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| 392 | } |
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| 393 | |
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| 394 | float MoviePlayer::getFPS() |
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| 395 | { |
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| 396 | return this->fps; |
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| 397 | } |
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| 398 | |
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[5950] | 399 | const MP_STATUS MoviePlayer::getStatus() |
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| 400 | { |
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[6486] | 401 | return this->status; |
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| 402 | } |
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[5950] | 403 | |
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[6486] | 404 | void MoviePlayer::printInformation() |
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| 405 | { |
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[6731] | 406 | if(!mediaLoaded) |
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[6486] | 407 | { |
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| 408 | PRINTF(0)("Load first the media file with loadMovie\n"); |
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| 409 | return; |
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| 410 | } |
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| 411 | |
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| 412 | PRINTF(0)("========================\n"); |
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| 413 | PRINTF(0)("========================\n"); |
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| 414 | PRINTF(0)("= MEDIACONTAINER =\n"); |
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| 415 | PRINTF(0)("========================\n"); |
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| 416 | PRINTF(0)("========================\n"); |
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| 417 | PRINTF(0)("= AVFormatContext =\n"); |
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| 418 | PRINTF(0)("========================\n"); |
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| 419 | PRINTF(0)("filename: %s\n", format_context->filename); |
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| 420 | PRINTF(0)("nb_streams: %i\n", format_context->nb_streams); |
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| 421 | PRINTF(0)("duration: (%02d:%02d:%02d)\n", duration/3600, (duration%3600)/60, duration%60); |
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| 422 | PRINTF(0)("file_size: %ikb\n", format_context->file_size/1024); |
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| 423 | PRINTF(0)("bit_rate: %ikb/s\n", format_context->bit_rate/1000); |
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| 424 | PRINTF(0)("nb_frames: %i\n", format_context->streams[video_stream]->nb_frames); |
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| 425 | PRINTF(0)("r_frame_rate: %i\n", format_context->streams[video_stream]->r_frame_rate.num); |
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| 426 | PRINTF(0)("fps: %0.2f\n", fps); |
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| 427 | PRINTF(0)("========================\n"); |
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| 428 | PRINTF(0)("= AVCodecContext =\n"); |
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| 429 | PRINTF(0)("========================\n"); |
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| 430 | PRINTF(0)("width: %i\n", codec_context->width); |
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| 431 | PRINTF(0)("height: %i\n", codec_context->height); |
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| 432 | PRINTF(0)("time_base.den: %i\n", codec_context->time_base.den); |
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| 433 | PRINTF(0)("time_base.num: %i\n", codec_context->time_base.num); |
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| 434 | PRINTF(0)("========================\n"); |
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| 435 | PRINTF(0)("= AVCodec =\n"); |
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| 436 | PRINTF(0)("========================\n"); |
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| 437 | PRINTF(0)("codec name: %s\n", codec->name); |
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| 438 | PRINTF(0)("========================\n"); |
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| 439 | PRINTF(0)("========================\n"); |
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[5950] | 440 | } |
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