Merge pull request #37 from zbtrs/main

✨ feat(repo/packages): upgrade ffmpeg; update sdl2 to support player;…

apps/ffmpeg/xmake.lua

@@ -0,0 +1,33 @@
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- You may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+-- http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+-- Copyright (C) 2022-2023 RT-Thread Development Team
+--
+-- @author zbtrs 
+-- @file xmake.lua
+--
+-- Change Logs:
+-- Date Author Notes
+-- ------------ ---------- -----------------------------------------------
+-- 2023-08-09 zbtrs initial version
+--
+
+add_rules("mode.debug", "mode.release")
+
+add_requires("ffmpeg")
+
+target("ffmpeg")
+do
+ set_kind("phony")
+ add_packages("ffmpeg")
+end
+target_end()

apps/player/main.c

@@ -0,0 +1,216 @@
+/*
+ * Copyright (c) 2006-2020, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2023-9-14 zbtrs The first version
+ */
+
+
+#include <stdio.h>
+#include <unistd.h>
+#include <libavcodec/avcodec.h>
+#include <libavformat/avformat.h>
+#include <libswscale/swscale.h>
+#include <SDL2/SDL.h>
+#include <SDL2/SDL_image.h>
+
+#define rtt_screen_width 480
+#define rtt_screen_height 272
+
+
+int main (int argc, char *argv[]) 
+{
+ int ret = -1;
+ AVFormatContext *pFormatCtx = NULL; 
+ int videoStream;
+ AVCodecParameters *pCodecParameters = NULL; 
+ AVCodecContext *pCodecCtx = NULL;
+ AVCodec *pCodec = NULL;
+ AVFrame *pFrame = NULL;
+ AVPacket packet;
+
+
+ SDL_Rect rect;
+ SDL_Window *win = NULL;
+ SDL_Renderer *renderer = NULL;
+ SDL_Texture *texture = NULL;
+
+ if(( argc != 2 ))
+ {
+ printf("error input arguments!\n");
+ return(1);
+ }
+
+ // 默认窗口大小
+ int w_width = rtt_screen_width;
+ int w_height = rtt_screen_height;
+
+ // use dummy video driver
+ SDL_setenv("SDL_VIDEODRIVER","rtt",1);
+ //Initialize SDL
+ if( SDL_Init( SDL_INIT_VIDEO ) < 0 )
+ {
+ printf( "SDL could not initialize! SDL_Error: %s\n", SDL_GetError());
+ return -1;
+ }
+
+ // 打开输入文件
+ if (avformat_open_input(&pFormatCtx, argv[1], NULL, NULL) != 0) 
+ {
+ printf("Couldn't open video file!: %s\n", argv[1]);
+ goto __exit; 
+ }
+
+ // 找到视频流
+ videoStream = av_find_best_stream(pFormatCtx, AVMEDIA_TYPE_VIDEO, -1, -1, NULL, 0);
+ if (videoStream == -1) 
+ {
+ printf("Din't find a video stream!\n");
+ goto __exit;// Didn't find a video stream
+ }
+
+ // 流参数
+ pCodecParameters = pFormatCtx->streams[videoStream]->codecpar;
+
+ // 获取解码器
+ pCodec = avcodec_find_decoder(pCodecParameters->codec_id);
+ if (pCodec == NULL) 
+ {
+ printf("Unsupported codec!\n");
+ goto __exit; // Codec not found
+ }
+
+ // 初始化一个编解码上下文
+ pCodecCtx = avcodec_alloc_context3(pCodec);
+ if (avcodec_parameters_to_context(pCodecCtx, pCodecParameters) != 0) 
+ {
+ printf("Couldn't copy codec context\n");
+ goto __exit;// Error copying codec context
+ }
+
+ // 打开解码器
+ if (avcodec_open2(pCodecCtx, pCodec, NULL) < 0) 
+ {
+ printf("Failed to open decoder!\n");
+ goto __exit; // Could not open codec
+ }
+
+ // Allocate video frame
+ pFrame = av_frame_alloc();
+ if (NULL == pFrame) {
+ printf("av_frame_alloc error\n");
+ goto __exit;
+ }
+
+ w_width = pCodecCtx->width;
+ w_height = pCodecCtx->height;
+
+ // 创建窗口
+ win = SDL_CreateWindow("Media Player",
+ SDL_WINDOWPOS_UNDEFINED,
+ SDL_WINDOWPOS_UNDEFINED,
+ w_width, w_height,
+ SDL_WINDOW_SHOWN );
+ if (!win) 
+ {
+ printf("Failed to create window by SDL\n");
+ goto __exit;
+ }
+
+ // 创建渲染器
+ renderer = SDL_CreateRenderer(win, -1, 0);
+ if (!renderer) 
+ {
+ printf("Failed to create Renderer by SDL\n");
+ goto __exit;
+ }
+
+ // 创建纹理
+ texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_IYUV,
+ SDL_TEXTUREACCESS_STREAMING,
+ w_width,
+ w_height);
+ if (!texture) {
+ printf("SDL_CreateTexture Error: %s\n",SDL_GetError());
+ goto __exit;
+ }
+
+ int receive_frame_ret = 0;
+
+ // 读取数据
+ while (av_read_frame(pFormatCtx, &packet) >= 0) 
+ {
+ if (packet.stream_index == videoStream) 
+ {
+ // 解码
+ avcodec_send_packet(pCodecCtx, &packet);
+ while (receive_frame_ret = avcodec_receive_frame(pCodecCtx, pFrame) == 0) 
+ {
+ if (receive_frame_ret < 0) {
+ printf("avcodec_receive_frame error: %d\n",receive_frame_ret);
+ goto __exit;
+ }
+ SDL_UpdateYUVTexture(texture, NULL,
+ pFrame->data[0], pFrame->linesize[0],
+ pFrame->data[1], pFrame->linesize[1],
+ pFrame->data[2], pFrame->linesize[2]);
+
+ // set size of Window
+ rect.x = 0;
+ rect.y = 0;
+ rect.w = pCodecCtx->width;
+ rect.h = pCodecCtx->height;
+
+ SDL_RenderClear(renderer);
+ SDL_RenderCopy(renderer, texture, NULL, &rect);
+ SDL_RenderPresent(renderer);
+ }
+ }
+
+ av_packet_unref(&packet);
+ }
+
+ __exit:
+
+ if (pFrame) 
+ {
+ av_frame_free(&pFrame);
+ }
+
+ if (pCodecCtx) 
+ {
+ avcodec_close(pCodecCtx);
+ }
+
+ if (pCodecParameters) 
+ {
+ avcodec_parameters_free(&pCodecParameters);
+ }
+
+ if (pFormatCtx) 
+ {
+ avformat_close_input(&pFormatCtx);
+ }
+
+ if (win) 
+ {
+ SDL_DestroyWindow(win);
+ }
+
+ if (renderer) 
+ {
+ SDL_DestroyRenderer(renderer);
+ }
+
+ if (texture) 
+ {
+ SDL_DestroyTexture(texture);
+ }
+
+ SDL_Quit();
+
+ return ret;
+}

apps/player/xmake.lua

@@ -0,0 +1,14 @@
+add_rules("mode.debug", "mode.release")
+
+add_requires("sdl2")
+add_requires("sdl2_image")
+add_requires("ffmpeg")
+
+target("player")
+do
+ add_files("*.c")
+ add_packages("sdl2")
+ add_packages("sdl2_image")
+ add_packages("ffmpeg")
+end
+target_end()