打印mjpeg_rkmpp支持的图像格式

main.c

#include <libavcodec/avcodec.h>
#include <libavutil/pixfmt.h>
#include <libavutil/imgutils.h>
#include <libavutil/opt.h>
#include <stdio.h>
#include <stdlib.h>



void print_supported_pixel_formats(const AVCodec *codec) {
    if (!codec) {
        fprintf(stderr, "Codec is NULL\n");
        return;
    }

    const enum AVPixelFormat *pix_fmts = codec->pix_fmts;
    if (!pix_fmts) {
        fprintf(stderr, "No pixel formats specified for this codec\n");
        return;
    }

    printf("Supported pixel formats for codec '%s':\n", codec->name);
    while (*pix_fmts != AV_PIX_FMT_NONE) {
        printf("  %s\n", av_get_pix_fmt_name(*pix_fmts));
        pix_fmts++;
    }
}

int main() {
    // 找到 MJPEG 编码器
    const AVCodec *codec = avcodec_find_encoder_by_name("mjpeg_rkmpp");
    if (!codec) {
        fprintf(stderr, "Codec not found\n");
        return -1;
    }

    // 打印支持的像素格式
    print_supported_pixel_formats(codec);

    return 0;
}

Makefile

C_COMPILER	=	aarch64-rockchip1031-linux-gnu-gcc  
CFLAGS		=	-I/home/lingke/mnt/usr/include
LDFLAGS		=	-L/home/lingke/mnt/usr/lib \
				-lrockchip_mpp -ldrm -lrga \
				-lavcodec -lavformat -lavutil -lavfilter -lswscale -lswresample -lavdevice -lpostproc -lpthread -lm -lz 


all: main.exe

main.exe: main.c
	$(C_COMPILER) $(CFLAGS) -o $@ $^ $(LDFLAGS)

clean:
	-rm -rf *.exe *.o

./main.exe

Supported pixel formats for codec 'mjpeg_rkmpp':
  yuv420p
  yuvj420p
  yuv422p
  yuvj422p
  yuv444p
  yuvj444p
  nv12
  nv21
  nv16
  nv24
  yuyv422
  uyvy422
  yvyu422
  rgb444be
  bgr444be
  rgb555be
  bgr555be
  rgb565be
  bgr565be
  rgba
  rgb0
  bgra
  bgr0
  argb
  0rgb
  abgr
  0bgr
  x2rgb10be
  x2bgr10be
  drm_prime