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);
+ bool using_vaapi() const { return va_dpy != nullptr; }
+
+ // Returns -1 for inactive (ie., don't encode frames for this card right now).
+ int get_mjpeg_stream_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;
+
+ // 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 write_mjpeg_packet(int64_t pts, unsigned card_index, const uint8_t *jpeg, size_t jpeg_size);
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);
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;
std::map<std::pair<unsigned, unsigned>, VAData> va_data_for_resolution;
VAData get_va_data_for_resolution(unsigned width, unsigned height);
- 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)