Bad Apple CLI (far from perfect)

bad_apple.c

#include <stdio.h>
#include <sys/ioctl.h>
#include <stdlib.h>
#include <time.h>
#include <libavformat/avformat.h>
#include <unistd.h>

void draw_bmp(uint32_t frame_count, char *filename, uint8_t framerate){
    FILE *bmp_handle;
    FILE *buffer_handle;
    buffer_handle = fopen("buffer.txt","w");
    struct winsize w;
    ioctl(0, TIOCGWINSZ, &w);
    uint16_t lines = w.ws_row;
    uint16_t columns = w.ws_col;
    uint8_t pixel;
    uint16_t batch = 1;
    uint32_t filejump = 0;
    uint32_t size, offset, static_offset, width, height;
    char buf[0x100];
    // Repeat for all frames.
    for(int i = 1; i <= frame_count; ++i){
        if(batch==1){
            snprintf(buf, sizeof(buf), "ffmpeg -i \"%s\" -vf \"select=between(n\\,%d\\,%d)\" -vsync 0 -pix_fmt bgr8 -y temp-termplayer/bitmap%%01d.bmp >/dev/null 2>/dev/null", filename, filejump, filejump+1999);
            system(buf);
        }
        snprintf(buf, sizeof(buf), "temp-termplayer/bitmap%d.bmp", batch);
        bmp_handle = fopen(buf,"r");
        // size
        fseek(bmp_handle,0x02, SEEK_SET);
        fread(&size,4,1,bmp_handle);
        // offset
        fseek(bmp_handle,0x0A,SEEK_SET);
        fread(&static_offset,4,1,bmp_handle);
        // width, height
        fseek(bmp_handle,0x12,SEEK_SET);
        fread(&width,4,1,bmp_handle);
        fread(&height,4,1,bmp_handle);
        uint16_t new_width;
        // Respect aspect ratio. Note: not working so always true
        if((float)(width/height) < (float)(16/9) || 1){
            new_width = lines*3;
        } else {
            new_width = columns;
        }
        uint16_t width_offset = (columns - new_width)/2;
        // Read according to the terminal resolution.
        uint16_t jump_width = width/new_width;
        uint16_t jump_height = height/lines;
        //printf("width %d, height %d, lines %d, columns %d, new_width %d, jump_width %d, jump_height %d\n",width,height,lines,columns,new_width,jump_width,jump_height);
        //return;
        // BMP stores image upside down. Set offset to last horizontal line.
        offset = static_offset + width * height - width;
        // Y axis.
        for(int j = 1; j < lines+1; ++j){
            // X axis.
            fseek(bmp_handle,offset,SEEK_SET);
            for(int k = 0; k < width_offset+4; ++k){
                fputc(' ',buffer_handle);
            }
            for(int k = 1; k < new_width-7; ++k){
                fread(&pixel,1,1,bmp_handle);
                if (pixel > 235) fputc('#',buffer_handle);
                else if (pixel > 148) fputc('+',buffer_handle);
                else if (pixel > 96) fputc(':',buffer_handle);
                else if (pixel > 0) fputc('.',buffer_handle);
                else fputc(' ',buffer_handle);
                fseek(bmp_handle,jump_width,SEEK_CUR);
            }
            for(int k = new_width+width_offset; k < columns+3; ++k){
                fputc(' ',buffer_handle);
            }
            fputc('\n',buffer_handle);
            // Go up one line.
            offset = static_offset + width*height - (j*width*jump_height);
        }
        fclose(bmp_handle);
        ++batch;
        if(batch == 2000){
            batch = 1;
            filejump += 2000;
        }
    }
    fclose(buffer_handle);
    system("rm temp-termplayer/*.bmp >/dev/null 2>/dev/null");
    buffer_handle = fopen("buffer.txt","r");
    printf("\n");
    char line[columns];
    uint8_t line_count = 0;
    int pid = fork();
    if (pid == 0){
        #ifdef __linux
        system("aplay temp-termplayer/audio.wav >/dev/null 2>/dev/null");
        #else //macos
        system("afplay temp-termplayer/audio.wav >/dev/null 2>/dev/null");
        #endif
        return;
    }
    while(fgets(line, sizeof(line), buffer_handle)){
        printf("%s",line);
        ++line_count;
        if (line_count == lines*2){
            line_count = 0;
            usleep((33000));
        }
    }
    fclose(buffer_handle);
}

int main(int argc, char *argv[]){
    if (argc < 2){
        printf("Provide a video please.\n");
        return 0;
    }

    AVFormatContext *pFormatCtx = NULL;
    if (avformat_open_input(&pFormatCtx, argv[1], NULL, NULL) != 0)
        return -1;
    
    if (avformat_find_stream_info(pFormatCtx, NULL) < 0)
        return -1;
    
    uint32_t duration = (uint32_t)(pFormatCtx->duration/1000000);
    uint8_t framerate = pFormatCtx->streams[0]->r_frame_rate.num / pFormatCtx->streams[0]->r_frame_rate.den;
    uint32_t frame_count = framerate * duration;
    char buf[0x100];
    system("mkdir temp-termplayer >/dev/null 2>/dev/null");
    snprintf(buf, sizeof(buf), "ffmpeg -i \"%s\" -y temp-termplayer/audio.wav >/dev/null 2>/dev/null", argv[1]);
    system(buf);
    draw_bmp(frame_count, argv[1], framerate);
    return 0;
}

Woah this is Really Spot on, Thanks bud.

Yoo thank you too!

[felix@ArtwixLinwux ~]$ gcc bad_apple.c -o bad_apple /usr/bin/ld: /tmp/ccZy4GpA.o: in function main':
bad_apple.c:(.text+0x71a): undefined reference to avformat_open_input' /usr/bin/ld: bad_apple.c:(.text+0x73c): undefined reference to avformat_find_stream_info'
collect2: error: ld returned 1 exit status`

Can someone help me?
Thanks

[felix@ArtwixLinwux ~]$ gcc bad_apple.c -o bad_apple /usr/bin/ld: /tmp/ccZy4GpA.o: in function main': bad_apple.c:(.text+0x71a): undefined reference to avformat_open_input' /usr/bin/ld: bad_apple.c:(.text+0x73c): undefined reference to avformat_find_stream_info' collect2: error: ld returned 1 exit status`

Can someone help me? Thanks

You probably forgot to install libavformat, in Artix/arch, i think it should be in ffmpeg package. Try compiling after installing that.