Lines Matching defs:gamma
112 { "mov_gamma", "gamma value for gama atom", offsetof(MOVMuxContext, gamma), AV_OPT_TYPE_FLOAT, {.dbl = 0.0 }, 0.0, 10, AV_OPT_FLAG_ENCODING_PARAM},
2025 static int mov_write_gama_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track, double gamma)
2028 if (gamma <= 0.0) {
2029 gamma = avpriv_get_gamma_from_trc(track->par->color_trc);
2031 av_log(s, AV_LOG_DEBUG, "gamma value %g\n", gamma);
2033 if (gamma > 1e-6) {
2034 gama = (uint32_t)lrint((double)(1<<16) * gamma);
2043 av_log(s, AV_LOG_WARNING, "gamma value unknown, unable to write gama atom\n");
2468 mov_write_gama_tag(s, pb, track, mov->gamma);