| 1093 | } |
| 1094 | |
| 1095 | static int initVideoStream( const char *codec_name, OutputStream *ost ) |
| 1096 | { |
| 1097 | int ret; |
| 1098 | const AVCodec *codec; |
| 1099 | AVCodecContext *c; |
| 1100 | double fps; |
| 1101 | int fps1000; |
| 1102 | unsigned int usec; |
| 1103 | |
| 1104 | fps = getBaseFrameRate(); |
| 1105 | |
| 1106 | usec = (unsigned int)((1.0e6 / fps)+0.50); |
| 1107 | |
| 1108 | fps1000 = (int)(fps * 1000.0); |
| 1109 | |
| 1110 | /* find the video encoder */ |
| 1111 | codec = avcodec_find_encoder_by_name(codec_name); |
| 1112 | |
| 1113 | if (codec == NULL) |
| 1114 | { |
| 1115 | fprintf( avLogFp, "Video codec not found: %s\n", codec_name); |
| 1116 | return -1; |
| 1117 | } |
| 1118 | //printf("CODEC: %s\n", codec->name ); |
| 1119 | |
| 1120 | ost->st = avformat_new_stream(oc, NULL); |
| 1121 | |
| 1122 | if (ost->st == NULL) |
| 1123 | { |
| 1124 | fprintf( avLogFp, "Error: Could not alloc video stream\n"); |
| 1125 | return -1; |
| 1126 | } |
| 1127 | |
| 1128 | c = avcodec_alloc_context3(codec); |
| 1129 | |
| 1130 | if (c == NULL) |
| 1131 | { |
| 1132 | fprintf( avLogFp, "Error: Could not alloc an video encoding context\n"); |
| 1133 | return -1; |
| 1134 | } |
| 1135 | /* Put sample parameters. */ |
| 1136 | c->bit_rate = 400000; |
| 1137 | c->gop_size = 12; /* emit one intra frame every twelve frames at most */ |
| 1138 | |
| 1139 | loadCodecConfig( 0, codec_name, c ); |
| 1140 | |
| 1141 | ost->enc = c; |
| 1142 | |
| 1143 | //av_opt_show2( (void*)c, NULL, AV_OPT_FLAG_VIDEO_PARAM, 0 ); |
| 1144 | |
| 1145 | /* Resolution must be a multiple of two. */ |
| 1146 | c->width = nes_shm->video.ncol; |
| 1147 | c->height = nes_shm->video.nrow; |
| 1148 | |
| 1149 | /* timebase: This is the fundamental unit of time (in seconds) in terms |
| 1150 | * of which frame timestamps are represented. For fixed-fps content, |
| 1151 | * timebase should be 1/framerate and timestamp increments should be |
| 1152 | * identical to 1. */ |
no test coverage detected