]> git.sesse.net Git - nageru/blobdiff - nageru/mjpeg_encoder.h
Make the MJPEG card-to-stream mapping invisible to outside callers.
[nageru] / nageru / mjpeg_encoder.h
index 3ce34396efa4253290efe66e1a59a2574ef757b8..362e93461e2ed92c6a09b73153fe7dfc34b6b307 100644 (file)
@@ -20,6 +20,7 @@ extern "C" {
 #include <string>
 #include <thread>
 
+#include <movit/effect.h>
 #include <va/va.h>
 
 class HTTPD;
@@ -27,40 +28,109 @@ struct jpeg_compress_struct;
 struct VADisplayWithCleanup;
 struct VectorDestinationManager;
 
+#define CHECK_VASTATUS(va_status, func)                                 \
+    if (va_status != VA_STATUS_SUCCESS) {                               \
+        fprintf(stderr, "%s:%d (%s) failed with %d\n", __func__, __LINE__, func, va_status); \
+        exit(1);                                                        \
+    }
+
 class MJPEGEncoder {
 public:
        MJPEGEncoder(HTTPD *httpd, const std::string &va_display);
+       ~MJPEGEncoder();
        void stop();
-       void upload_frame(int64_t pts, unsigned card_index, RefCountedFrame frame, const bmusb::VideoFormat &video_format, size_t y_offset, size_t cbcr_offset);
+       void upload_frame(int64_t pts, unsigned card_index, RefCountedFrame frame, const bmusb::VideoFormat &video_format, size_t y_offset, size_t cbcr_offset, std::vector<int32_t> audio, const movit::RGBTriplet &white_balance);
+       bool using_vaapi() const { return va_dpy != nullptr; }
+
+       bool should_encode_mjpeg_for_card(unsigned card_index);
 
 private:
        static constexpr int quality = 90;
 
+       struct VAResources {
+               unsigned width, height;
+               VASurfaceID surface;
+               VAContextID context;
+               VABufferID data_buffer;
+               VAImage image;
+       };
+
+       // RAII wrapper to release VAResources on return (even on error).
+       class ReleaseVAResources {
+       public:
+               ReleaseVAResources() : committed(true) {}
+
+               ReleaseVAResources(MJPEGEncoder *mjpeg, const VAResources &resources)
+                       : mjpeg(mjpeg), resources(resources) {}
+
+               ReleaseVAResources(ReleaseVAResources &) = delete;
+
+               ReleaseVAResources(ReleaseVAResources &&other)
+                       : mjpeg(other.mjpeg), resources(other.resources), committed(other.committed) {
+                       other.commit();
+               }
+
+               ReleaseVAResources &operator= (ReleaseVAResources &) = delete;
+
+               ReleaseVAResources &operator= (ReleaseVAResources &&other) {
+                       if (!committed) {
+                               mjpeg->release_va_resources(resources);
+                       }
+                       mjpeg = other.mjpeg;
+                       resources = std::move(other.resources);
+                       committed = other.committed;
+                       other.commit();
+                       return *this;
+               }
+
+               ~ReleaseVAResources()
+               {
+                       if (!committed) {
+                               mjpeg->release_va_resources(resources);
+                       }
+               }
+
+               void commit() { committed = true; }
+
+       private:
+               MJPEGEncoder *mjpeg = nullptr;
+               VAResources resources;
+               bool committed = false;
+       };
+
        struct QueuedFrame {
                int64_t pts;
                unsigned card_index;
                RefCountedFrame frame;
                bmusb::VideoFormat video_format;
                size_t y_offset, cbcr_offset;
+               std::vector<int32_t> audio;
+               movit::RGBTriplet white_balance;
+
+               // Only for frames in the process of being encoded by VA-API.
+               VAResources resources;
+               ReleaseVAResources resource_releaser;
        };
 
        void encoder_thread_func();
-       std::vector<uint8_t> encode_jpeg(const QueuedFrame &qf);
-       std::vector<uint8_t> encode_jpeg_va(const QueuedFrame &qf);
+       void va_receiver_thread_func();
+       void encode_jpeg_va(QueuedFrame &&qf);
        std::vector<uint8_t> encode_jpeg_libjpeg(const QueuedFrame &qf);
-       void init_jpeg_422(unsigned width, unsigned height, VectorDestinationManager *dest, jpeg_compress_struct *cinfo);
-       std::vector<uint8_t> get_jpeg_header(unsigned width, unsigned height, jpeg_compress_struct *cinfo);
+       void write_mjpeg_packet(int64_t pts, unsigned card_index, const uint8_t *jpeg, size_t jpeg_size);
+       void write_audio_packet(int64_t pts, unsigned card_index, const std::vector<int32_t> &audio);
+       void init_jpeg_422(unsigned width, unsigned height, const movit::RGBTriplet &white_balance, VectorDestinationManager *dest, jpeg_compress_struct *cinfo);
+       std::vector<uint8_t> get_jpeg_header(unsigned width, unsigned height, const movit::RGBTriplet &white_balance, jpeg_compress_struct *cinfo);
 
        static int write_packet2_thunk(void *opaque, uint8_t *buf, int buf_size, AVIODataMarkerType type, int64_t time);
        int write_packet2(uint8_t *buf, int buf_size, AVIODataMarkerType type, int64_t time);
 
-       std::thread encoder_thread;
+       std::thread encoder_thread, va_receiver_thread;
 
        std::mutex mu;
        std::queue<QueuedFrame> frames_to_be_encoded;  // Under mu.
-       std::condition_variable any_frames_to_be_encoded;
+       std::condition_variable any_frames_to_be_encoded;  // Governs changes in both frames_to_be_encoded and frames_under_encoding
 
-       std::queue<QueuedFrame> frames_encoding;  // Under mu.
+       std::queue<QueuedFrame> frames_encoding;  // Under mu. Used for VA-API only.
        std::condition_variable any_frames_encoding;
 
        AVFormatContextWithCloser avctx;
@@ -80,42 +150,25 @@ private:
                VAEncSliceParameterBufferJPEG parms;
        };
        std::map<std::pair<unsigned, unsigned>, VAData> va_data_for_resolution;
-       VAData get_va_data_for_resolution(unsigned width, unsigned height);
+       VAData get_va_data_for_resolution(unsigned width, unsigned height, const movit::RGBTriplet &white_balance);
 
-       struct VAResources {
-               unsigned width, height;
-               VASurfaceID surface;
-               VAContextID context;
-               VABufferID data_buffer;
-       };
        std::list<VAResources> va_resources_freelist;
        std::mutex va_resources_mutex;
        VAResources get_va_resources(unsigned width, unsigned height);
        void release_va_resources(VAResources resources);
 
-       // RAII wrapper to release VAResources on return (even on error).
-       class ReleaseVAResources {
-       public:
-               ReleaseVAResources(MJPEGEncoder *mjpeg, const VAResources &resources)
-                       : mjpeg(mjpeg), resources(resources) {}
-               ~ReleaseVAResources()
-               {
-                       if (!committed) {
-                               mjpeg->release_va_resources(resources);
-                       }
-               }
+       static std::unique_ptr<VADisplayWithCleanup> try_open_va(const std::string &va_display, std::string *error, VAConfigID *config_id);
 
-               void commit() { committed = true; }
+       uint8_t *tmp_y, *tmp_cbcr, *tmp_cb, *tmp_cr;  // Private to the encoder thread. Used by the libjpeg backend only.
 
-       private:
-               MJPEGEncoder * const mjpeg;
-               const VAResources &resources;
-               bool committed = false;
-       };
-
-       static std::unique_ptr<VADisplayWithCleanup> try_open_va(const std::string &va_display, std::string *error, VAConfigID *config_id);
+       std::atomic<int64_t> metric_mjpeg_frames_zero_size_dropped{0};
+       std::atomic<int64_t> metric_mjpeg_frames_interlaced_dropped{0};
+       std::atomic<int64_t> metric_mjpeg_frames_unsupported_pixel_format_dropped{0};
+       std::atomic<int64_t> metric_mjpeg_frames_oversized_dropped{0};
+       std::atomic<int64_t> metric_mjpeg_overrun_dropped{0};
+       std::atomic<int64_t> metric_mjpeg_overrun_submitted{0};
 
-       uint8_t *tmp_y, *tmp_cbcr, *tmp_cb, *tmp_cr;  // Private to the encoder thread.
+       friend class PBOFrameAllocator;  // FIXME
 };
 
 #endif  // !defined(_MJPEG_ENCODER_H)