347 lines
9.6 KiB
Diff
347 lines
9.6 KiB
Diff
diff -Paur --no-dereference -- video-player.upstream/Makefile video-player/Makefile
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--- video-player.upstream/Makefile
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+++ video-player/Makefile
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@@ -0,0 +1,36 @@
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+include ../../../build-aux/compiler.mak
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+include ../../../build-aux/version.mak
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+include ../../../build-aux/dirs.mak
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+
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+PKG_CONFIG?=pkg-config
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+
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+OPTLEVEL?=-g -O2
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+CXXFLAGS?=$(OPTLEVEL)
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+
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+CPPFLAGS:=$(CPPFLAGS)
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+CXXFLAGS:=$(CXXFLAGS) -Wall -Wextra -fno-exceptions -fno-rtti
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+
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+BINARY:=video-player
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+LIBS!=$(PKG_CONFIG) --libs libavcodec libavformat libswscale
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+
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+DISPLAY:=$(shell $(LD) -ldisplay -o /dev/null 2>/dev/null && echo 1)
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+ifeq ($(DISPLAY),1)
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+LIBS:=$(LIBS) -ldisplay
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+CPPFLAGS:=$(CPPFLAGS) -DDISPLAY
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+else
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+LIBS:=$(LIBS) -ldispd
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+endif
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+
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+all: $(BINARY)
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+
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+.PHONY: all install clean
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+
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+%: %.cpp
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+ $(CXX) -std=gnu++11 $(CXXFLAGS) $(CPPFLAGS) $< -o $@ $(LIBS)
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+
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+install: all
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+ mkdir -p $(DESTDIR)$(BINDIR)
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+ install $(BINARY) $(DESTDIR)$(BINDIR)
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+
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+clean:
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+ rm -f $(BINARY)
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diff -Paur --no-dereference -- video-player.upstream/video-player.cpp video-player/video-player.cpp
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--- video-player.upstream/video-player.cpp
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+++ video-player/video-player.cpp
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@@ -0,0 +1,302 @@
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+#define __STDC_CONSTANT_MACROS
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+#define __STDC_LIMIT_MACROS
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+
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+#include <assert.h>
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+#include <errno.h>
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+#include <error.h>
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+#include <stdint.h>
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+#include <stdio.h>
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+#include <stdlib.h>
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+#include <time.h>
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+#include <timespec.h>
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+#include <unistd.h>
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+
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+#ifdef DISPLAY
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+#include <display.h>
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+#else
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+#include <dispd.h>
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+#endif
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+
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+extern "C" {
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+#include <libavcodec/avcodec.h>
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+#include <libavformat/avformat.h>
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+#include <libswscale/swscale.h>
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+} // extern "C"
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+
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+uint32_t WINDOW_ID = 0;
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+uint32_t WINDOW_WIDTH = 0;
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+uint32_t WINDOW_HEIGHT = 0;
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+
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+bool need_show = true;
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+bool need_exit = false;
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+
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+uint32_t* framebuffer = NULL;
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+size_t framebuffer_size = 0;
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+
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+void on_disconnect(void*)
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+{
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+ need_exit = true;
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+}
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+
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+void on_quit(void*, uint32_t window_id)
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+{
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+ if ( window_id != WINDOW_ID )
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+ return;
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+ need_exit = true;
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+}
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+
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+void on_resize(void*, uint32_t window_id, uint32_t width, uint32_t height)
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+{
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+ if ( window_id != WINDOW_ID )
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+ return;
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+ WINDOW_WIDTH = width;
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+ WINDOW_HEIGHT = height;
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+}
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+
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+void on_keyboard(void*, uint32_t window_id, uint32_t)
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+{
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+ if ( window_id != WINDOW_ID )
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+ return;
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+}
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+
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+#ifdef DISPLAY
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+static void DisplayVideoFrame(AVFrame* frame, struct display_connection* connection)
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+#else
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+static void DisplayVideoFrame(AVFrame* frame, struct dispd_window* window)
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+#endif
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+{
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+#ifdef DISPLAY
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+ size_t framebuffer_needed = sizeof(uint32_t) * WINDOW_WIDTH * WINDOW_HEIGHT;
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+ if ( framebuffer_size != framebuffer_needed )
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+ {
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+ framebuffer = (uint32_t*) realloc(framebuffer, framebuffer_size = framebuffer_needed);
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+ memset(framebuffer, 255, framebuffer_needed);
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+ }
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+ uint32_t width = WINDOW_WIDTH;
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+ uint32_t height = WINDOW_HEIGHT;
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+#else
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+ struct dispd_framebuffer* window_fb = dispd_begin_render(window);
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+ uint32_t width = dispd_get_framebuffer_width(window_fb);
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+ uint32_t height = dispd_get_framebuffer_height(window_fb);
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+ uint32_t* framebuffer = (uint32_t*) dispd_get_framebuffer_data(window_fb);
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+#endif
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+
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+ SwsContext* sws_ctx = sws_getContext(frame->width, frame->height,
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+ (AVPixelFormat) frame->format, width,
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+ height, AV_PIX_FMT_RGB32, SWS_BILINEAR,
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+ NULL, NULL, NULL);
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+ assert(sws_ctx);
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+
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+ uint8_t* data_arr[1] = { (uint8_t*) framebuffer };
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+ int stride_arr[1] = { (int) (sizeof(framebuffer[0]) * width) };
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+ sws_scale(sws_ctx, frame->data, frame->linesize, 0, frame->height, data_arr,
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+ stride_arr);
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+
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+ sws_freeContext(sws_ctx);
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+
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+#ifdef DISPLAY
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+ display_render_window(connection, WINDOW_ID, 0, 0, WINDOW_WIDTH, WINDOW_HEIGHT, framebuffer);
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+
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+ struct display_event_handlers handlers;
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+ memset(&handlers, 0, sizeof(handlers));
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+ handlers.disconnect_handler = on_disconnect;
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+ handlers.quit_handler = on_quit;
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+ handlers.resize_handler = on_resize;
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+ handlers.keyboard_handler = on_keyboard;
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+ while ( display_poll_event(connection, &handlers) == 0 );
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+#else
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+ dispd_finish_render(window_fb);
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+#endif
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+}
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+
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+#ifdef DISPLAY
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+bool PlayVideo(const char* path, struct display_connection* connection)
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+#else
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+bool PlayVideo(const char* path, struct dispd_window* connection)
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+#endif
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+{
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+ bool ret = false;
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+ int av_error;
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+ AVFormatContext* format_ctx = NULL;
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+ int video_stream_id;
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+ int audio_stream_id;
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+ AVStream* video_stream = NULL;
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+ AVStream* audio_stream = NULL;
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+ const AVCodec* video_codec = NULL;
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+ const AVCodec* audio_codec = NULL;
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+ AVCodecContext* video_codec_ctx = NULL;
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+ AVCodecContext* audio_codec_ctx = NULL;
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+ AVFrame* video_frame = NULL;
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+ AVFrame* audio_frame = NULL;
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+ AVPacket packet;
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+
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+ if ( (av_error = avformat_open_input(&format_ctx, path, NULL, NULL)) < 0 )
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+ {
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+ error(0, 0, "%s: cannot open: %i\n", path, av_error);
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+ goto cleanup_done;
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+ }
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+
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+ if ( (av_error = avformat_find_stream_info(format_ctx, NULL)) < 0 )
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+ {
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+ error(0, 0, "%s: avformat_find_stream_info: %i\n", path, av_error);
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+ goto cleanup_input;
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+ }
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+
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+ video_stream_id = av_find_best_stream(format_ctx, AVMEDIA_TYPE_VIDEO, -1,
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+ -1, &video_codec, 0);
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+ audio_stream_id = av_find_best_stream(format_ctx, AVMEDIA_TYPE_AUDIO, -1,
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+ -1, &audio_codec, 0);
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+
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+ if ( 0 <= video_stream_id )
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+ video_stream = format_ctx->streams[video_stream_id];
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+ if ( 0 <= audio_stream_id )
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+ audio_stream = format_ctx->streams[audio_stream_id];
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+
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+ if ( !video_stream )
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+ {
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+ error(0, 0, "%s: no video stream found\n", path);
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+ goto cleanup_input;
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+ }
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+
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+ if ( video_codec && !(video_codec_ctx = avcodec_alloc_context3(video_codec)))
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+ goto cleanup_input;
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+ if ( audio_codec && !(audio_codec_ctx = avcodec_alloc_context3(audio_codec)))
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+ goto cleanup_video_codec_ctx;
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+
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+
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+ if ( video_codec_ctx )
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+ {
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+ if ( (av_error = avcodec_open2(video_codec_ctx, NULL, NULL)) < 0 )
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+ goto cleanup_audio_codec_ctx;
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+ }
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+ if ( audio_codec_ctx )
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+ {
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+ if ( (av_error = avcodec_open2(audio_codec_ctx, NULL, NULL)) < 0 )
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+ goto cleanup_audio_codec_ctx;
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+ }
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+
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+ if ( !(video_frame = av_frame_alloc()) )
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+ goto cleanup_audio_codec_ctx;
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+ if ( !(audio_frame = av_frame_alloc()) )
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+ goto cleanup_video_frame;
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+
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+ struct timespec next_frame_at;
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+ clock_gettime(CLOCK_MONOTONIC, &next_frame_at);
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+
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+ while ( !need_exit && 0 <= (av_error = av_read_frame(format_ctx, &packet)) )
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+ {
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+ int stream_index = packet.stream_index;
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+ if ( stream_index == video_stream->index )
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+ {
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+ if ( (av_error = avcodec_send_packet(video_codec_ctx,
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+ &packet)) < 0 )
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+ goto break_decode_loop;
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+ while ( !(av_error = avcodec_receive_frame(video_codec_ctx,
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+ video_frame)) )
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+ {
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+ struct timespec now;
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+ clock_gettime(CLOCK_MONOTONIC, &now);
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+ while ( timespec_le(now, next_frame_at) )
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+ {
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+ struct timespec left = timespec_sub(next_frame_at, now);
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+ clock_nanosleep(CLOCK_MONOTONIC, 0, &left, NULL);
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+ clock_gettime(CLOCK_MONOTONIC, &now);
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+ }
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+
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+ DisplayVideoFrame(video_frame, connection);
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+
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+ uintmax_t usecs = video_codec_ctx->ticks_per_frame * 1000000 *
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+ video_codec_ctx->time_base.num /
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+ video_codec_ctx->time_base.den;
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+ next_frame_at = timespec_add(next_frame_at, timespec_make(0, usecs * 1000));
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+ }
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+ if ( av_error != AVERROR(EAGAIN) && av_error != AVERROR_EOF )
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+ goto break_decode_loop;
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+ }
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+ if ( stream_index == audio_stream->index )
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+ {
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+ // TODO: Add sound support when an backend is available.
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+ }
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+ }
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+break_decode_loop:
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+
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+ // TODO: Determine whether the are here because of EOF or whether an error
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+ // occured and we need to print an error.
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+ // TODO: Do we need to clean up the last packet or does the av_read_frame
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+ // function do that for us upon error?
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+ ret = true;
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+
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+goto cleanup_audio_frame;
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+cleanup_audio_frame:
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+ if ( audio_frame )
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+ av_frame_free(&audio_frame);
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+cleanup_video_frame:
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+ if ( video_frame )
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+ av_frame_free(&video_frame);
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+cleanup_audio_codec_ctx:
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+ if ( audio_codec_ctx )
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+ {
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+ avcodec_close(audio_codec_ctx);
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+ av_free(audio_codec_ctx);
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+ }
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+cleanup_video_codec_ctx:
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+ if ( video_codec_ctx )
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+ {
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+ avcodec_close(video_codec_ctx);
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+ av_free(video_codec_ctx);
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+ }
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+cleanup_input:
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+ avformat_close_input(&format_ctx);
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+cleanup_done:
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+ return ret;
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+}
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+
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+int main(int argc, char* argv[])
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+{
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+#ifdef DISPLAY
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+ struct display_connection* connection = display_connect_default();
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+ if ( !connection )
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+ error(1, errno, "Could not connect to display server");
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+#else
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+ if ( !isatty(0) )
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+ error(1, errno, "standard input");
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+ if ( !dispd_initialize(&argc, &argv) )
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+ error(1, 0, "couldn't initialize dispd library");
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+ struct dispd_session* session = dispd_attach_default_session();
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+ if ( !session )
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+ error(1, 0, "couldn't attach to dispd default session");
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+ if ( !dispd_session_setup_game_rgba(session) )
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+ error(1, 0, "couldn't setup dispd rgba session");
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+ struct dispd_window* window = dispd_create_window_game_rgba(session);
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+ if ( !window )
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+ error(1, 0, "couldn't create dispd rgba window");
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+ struct dispd_window* connection = window;
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+#endif
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+
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+#ifdef DISPLAY
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+ WINDOW_WIDTH = 800;
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+ WINDOW_HEIGHT = 450;
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+
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+ display_create_window(connection, WINDOW_ID);
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+ display_resize_window(connection, WINDOW_ID, WINDOW_WIDTH, WINDOW_HEIGHT);
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+ display_show_window(connection, WINDOW_ID);
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+#endif
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+
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+ for ( int i = 1; i < argc; i++ )
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+ {
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+#ifdef DISPLAY
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+ display_title_window(connection, WINDOW_ID, argv[i]);
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+#endif
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+ if ( !PlayVideo(argv[i], connection) )
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+ return 1;
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+ }
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+
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+#ifdef DISPLAY
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+ display_disconnect(connection);
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+#else
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+ dispd_destroy_window(window);
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+ dispd_detach_session(session);
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+#endif
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+
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+ return 0;
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+}
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