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support for premultipled alpha

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This commit is contained in:
itsmattkc
2019-01-26 21:49:18 +11:00
parent b0e1eb2ea4
commit 97a28ab54a
17 changed files with 392 additions and 254 deletions
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playback/cacher.cpp
+15 -6
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@@ -766,16 +766,26 @@ void open_clip_worker(Clip* clip) {
AVFilterContext* last_filter = clip->buffersrc_ctx;
char filter_args[100];
if (ms->video_interlacing != VIDEO_PROGRESSIVE) {
AVFilterContext* yadif_filter;
char yadif_args[100];
snprintf(yadif_args, sizeof(yadif_args), "mode=3:parity=%d", ((ms->video_interlacing == VIDEO_TOP_FIELD_FIRST) ? 0 : 1)); // there's a CUDA version if we start using nvdec/nvenc
avfilter_graph_create_filter(&yadif_filter, avfilter_get_by_name("yadif"), "yadif", yadif_args, nullptr, clip->filter_graph);
snprintf(filter_args, sizeof(filter_args), "mode=3:parity=%d", ((ms->video_interlacing == VIDEO_TOP_FIELD_FIRST) ? 0 : 1)); // there's a CUDA version if we start using nvdec/nvenc
avfilter_graph_create_filter(&yadif_filter, avfilter_get_by_name("yadif"), "yadif", filter_args, nullptr, clip->filter_graph);
avfilter_link(last_filter, 0, yadif_filter, 0);
last_filter = yadif_filter;
}
if (!clip->media->to_footage()->alpha_is_premultiplied) {
AVFilterContext* premultiply_filter;
snprintf(filter_args, sizeof(filter_args), "inplace=1");
avfilter_graph_create_filter(&premultiply_filter, avfilter_get_by_name("premultiply"), "premultiply", filter_args, nullptr, clip->filter_graph);
avfilter_link(last_filter, 0, premultiply_filter, 0);
last_filter = premultiply_filter;
}
/* stabilization code */
/*bool stabilize = false;
if (stabilize) {
@@ -799,11 +809,10 @@ void open_clip_worker(Clip* clip) {
clip->pix_fmt = avcodec_find_best_pix_fmt_of_list(valid_pix_fmts, static_cast<enum AVPixelFormat>(clip->stream->codecpar->format), 1, nullptr);
const char* chosen_format = av_get_pix_fmt_name(static_cast<enum AVPixelFormat>(clip->pix_fmt));
char format_args[100];
snprintf(format_args, sizeof(format_args), "pix_fmts=%s", chosen_format);
snprintf(filter_args, sizeof(filter_args), "pix_fmts=%s", chosen_format);
AVFilterContext* format_conv;
avfilter_graph_create_filter(&format_conv, avfilter_get_by_name("format"), "fmt", format_args, nullptr, clip->filter_graph);
avfilter_graph_create_filter(&format_conv, avfilter_get_by_name("format"), "fmt", filter_args, nullptr, clip->filter_graph);
avfilter_link(last_filter, 0, format_conv, 0);
avfilter_link(format_conv, 0, clip->buffersink_ctx, 0);