錯誤： 'CODEC_TYPE_AUDIO' 未申報時許M3U8-分割

Question

我要讓M3U8-分割爲HTTP實時流：https://github.com/johnf/m3u8-segmenter

有錯誤，當我做的錯誤是：

gcc -g -O -Wall -Wstrict-prototypes -Wmissing-prototypes -Waggregate-return -Wcast-align -Wcast-qual -Wnested-externs -Wshadow -Wbad-function-cast -Wwrite-strings -Werror m3u8-segmenter.c -o m3u8-segmenter -lavformat -lavcodec -lavutil 
m3u8-segmenter.c: In function ‘add_output_stream’: 
m3u8-segmenter.c:82:14: error: ‘CODEC_TYPE_AUDIO’ undeclared (first use in this function) 
m3u8-segmenter.c:82:14: note: each undeclared identifier is reported only once for each function it appears in 
m3u8-segmenter.c:94:14: error: ‘CODEC_TYPE_VIDEO’ undeclared (first use in this function) 
m3u8-segmenter.c: In function ‘main’: 
m3u8-segmenter.c:338:5: error: ‘av_open_input_file’ is deprecated (declared at /usr/local/include/libavformat/avformat.h:1090) [-Werror=deprecated-declarations] 
m3u8-segmenter.c:352:5: error: implicit declaration of function ‘guess_format’ [-Werror=implicit-function-declaration] 
m3u8-segmenter.c:352:5: error: nested extern declaration of ‘guess_format’ [-Werror=nested-externs] 
m3u8-segmenter.c:352:10: error: assignment makes pointer from integer without a cast [-Werror] 
m3u8-segmenter.c:371:18: error: ‘CODEC_TYPE_VIDEO’ undeclared (first use in this function) 
m3u8-segmenter.c:376:18: error: ‘CODEC_TYPE_AUDIO’ undeclared (first use in this function) 
m3u8-segmenter.c:387:5: error: ‘av_set_parameters’ is deprecated (declared at /usr/local/include/libavformat/avformat.h:1434) [-Werror=deprecated-declarations] 
m3u8-segmenter.c:392:5: error: ‘dump_format’ is deprecated (declared at /usr/local/include/libavformat/avformat.h:1559) [-Werror=deprecated-declarations] 
m3u8-segmenter.c:406:5: error: ‘url_fopen’ is deprecated (declared at /usr/local/include/libavformat/avio.h:279) [-Werror=deprecated-declarations] 
m3u8-segmenter.c:411:5: error: ‘av_write_header’ is deprecated (declared at /usr/local/include/libavformat/avformat.h:1492) [-Werror=deprecated-declarations] 
m3u8-segmenter.c:444:67: error: ‘PKT_FLAG_KEY’ undeclared (first use in this function) 
m3u8-segmenter.c:455:13: error: ‘put_flush_packet’ is deprecated (declared at /usr/local/include/libavformat/avio.h:293) [-Werror=deprecated-declarations] 
m3u8-segmenter.c:456:13: error: ‘url_fclose’ is deprecated (declared at /usr/local/include/libavformat/avio.h:280) [-Werror=deprecated-declarations] 
m3u8-segmenter.c:476:13: error: ‘url_fopen’ is deprecated (declared at /usr/local/include/libavformat/avio.h:279) [-Werror=deprecated-declarations] 
m3u8-segmenter.c:482:13: error: ‘av_write_header’ is deprecated (declared at /usr/local/include/libavformat/avformat.h:1492) [-Werror=deprecated-declarations] 
m3u8-segmenter.c:514:5: error: ‘url_fclose’ is deprecated (declared at /usr/local/include/libavformat/avio.h:280) [-Werror=deprecated-declarations] 
cc1: all warnings being treated as errors 

make: *** [all] Error 1 

Answer 1

你「重新得到這些錯誤，因爲某種原因，該塊libav_compat.h生效：

/* Support older versions of ffmpeg and libav */ 
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(52, 64, 0) 
    #define AVMEDIA_TYPE_AUDIO CODEC_TYPE_AUDIO 
    #define AVMEDIA_TYPE_VIDEO CODEC_TYPE_VIDEO 
    #define AV_PKT_FLAG_KEY PKT_FLAG_KEY 
#endif 

但無論哪頭都應該定義CODEC_TYPE_AUDIO和CODEC_TYPE_VIDEO不。從那裏的評論，它看起來像你可能應該更新你的其他軟件（ffmpeg和/或libav），然後再試一次。