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BernardXiongBernardXiong
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Merge pull request #37 from zbtrs/main
✨ feat(repo/packages): upgrade ffmpeg; update sdl2 to support player;…
2 parents 168ce81 + 394e6ab commit 161cc65

19 files changed

Lines changed: 1199 additions & 293 deletions

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‎apps/ffmpeg/xmake.lua‎

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

‎apps/player/main.c‎

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

‎apps/player/xmake.lua‎

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add_rules("mode.debug", "mode.release")
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add_requires("sdl2")
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add_requires("sdl2_image")
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add_requires("ffmpeg")
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target("player")
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do
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add_files("*.c")
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add_packages("sdl2")
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add_packages("sdl2_image")
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add_packages("ffmpeg")
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end
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target_end()

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