#include "compose.hpp"
+#include "dcpomatic_assert.h"
+#include "exceptions.h"
#include "image.h"
#include "video_filter_graph.h"
-#include "warnings.h"
+#include <dcp/scope_guard.h>
extern "C" {
#include <libavfilter/buffersrc.h>
#include <libavfilter/buffersink.h>
+#include <libavutil/opt.h>
}
#include "i18n.h"
using std::pair;
using std::shared_ptr;
using std::string;
-using std::vector;
VideoFilterGraph::VideoFilterGraph (dcp::Size s, AVPixelFormat p, dcp::Fraction r)
}
+list<shared_ptr<const Image>>
+VideoFilterGraph::process(shared_ptr<const Image> image)
+{
+ if (_copy) {
+ return { image };
+ }
+
+ auto frame = av_frame_alloc();
+ if (!frame) {
+ throw std::bad_alloc();
+ }
+
+ dcp::ScopeGuard sg = [&frame]() { av_frame_free(&frame); };
+
+ for (int i = 0; i < image->planes(); ++i) {
+ frame->data[i] = image->data()[i];
+ frame->linesize[i] = image->stride()[i];
+ }
+
+ frame->width = image->size().width;
+ frame->height = image->size().height;
+ frame->format = image->pixel_format();
+
+ int r = av_buffersrc_write_frame(_buffer_src_context, frame);
+ if (r < 0) {
+ throw DecodeError(String::compose(N_("could not push buffer into filter chain (%1)."), r));
+ }
+
+ list<shared_ptr<const Image>> images;
+
+ while (true) {
+ if (av_buffersink_get_frame(_buffer_sink_context, _frame) < 0) {
+ break;
+ }
+
+ images.push_back(make_shared<Image>(_frame, Image::Alignment::PADDED));
+ av_frame_unref (_frame);
+ }
+
+ return images;
+}
+
+
/** Take an AVFrame and process it using our configured filters, returning a
* set of Images. Caller handles memory management of the input frame.
*/
-list<pair<shared_ptr<Image>, int64_t>>
+list<pair<shared_ptr<const Image>, int64_t>>
VideoFilterGraph::process (AVFrame* frame)
{
- list<pair<shared_ptr<Image>, int64_t>> images;
+ list<pair<shared_ptr<const Image>, int64_t>> images;
-DCPOMATIC_DISABLE_WARNINGS
if (_copy) {
- images.push_back (make_pair(make_shared<Image>(frame), av_frame_get_best_effort_timestamp (frame)));
+ images.push_back (make_pair(make_shared<Image>(frame, Image::Alignment::PADDED), frame->best_effort_timestamp));
} else {
int r = av_buffersrc_write_frame (_buffer_src_context, frame);
if (r < 0) {
break;
}
- images.push_back (make_pair(make_shared<Image>(_frame), av_frame_get_best_effort_timestamp (_frame)));
+ images.push_back (make_pair(make_shared<Image>(_frame, Image::Alignment::PADDED), frame->best_effort_timestamp));
av_frame_unref (_frame);
}
}
-DCPOMATIC_ENABLE_WARNINGS
return images;
}
}
-void *
-VideoFilterGraph::sink_parameters () const
+void
+VideoFilterGraph::set_parameters (AVFilterContext* context) const
{
- auto sink_params = av_buffersink_params_alloc ();
- auto pixel_fmts = new AVPixelFormat[2];
- pixel_fmts[0] = _pixel_format;
- pixel_fmts[1] = AV_PIX_FMT_NONE;
- sink_params->pixel_fmts = pixel_fmts;
- return sink_params;
+ AVPixelFormat pix_fmts[] = { _pixel_format, AV_PIX_FMT_NONE };
+ int r = av_opt_set_int_list (context, "pix_fmts", pix_fmts, AV_PIX_FMT_NONE, AV_OPT_SEARCH_CHILDREN);
+ DCPOMATIC_ASSERT (r >= 0);
}