avformat/aviobuf: End grace period of allowing 0 from read_packet

See a606f27f4c.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

libavformat/aviobuf.c

@@ -519,14 +519,7 @@ static int read_packet_wrapper(AVIOContext *s, uint8_t *buf, int size)
     if (!s->read_packet)
         return AVERROR(EINVAL);
     ret = s->read_packet(s->opaque, buf, size);
-#if FF_API_OLD_AVIO_EOF_0
-    if (!ret && !s->max_packet_size) {
-        av_log(NULL, AV_LOG_WARNING, "Invalid return value 0 for stream protocol\n");
-        ret = AVERROR_EOF;
-    }
-#else
     av_assert2(ret || s->max_packet_size);
-#endif
     return ret;
 }
 

libavformat/version.h

@@ -58,9 +58,6 @@
 #ifndef FF_API_LAVF_AVCTX
 #define FF_API_LAVF_AVCTX               (LIBAVFORMAT_VERSION_MAJOR < 59)
 #endif
-#ifndef FF_API_OLD_AVIO_EOF_0
-#define FF_API_OLD_AVIO_EOF_0           (LIBAVFORMAT_VERSION_MAJOR < 59)
-#endif
 #ifndef FF_API_OLD_RTSP_OPTIONS
 #define FF_API_OLD_RTSP_OPTIONS         (LIBAVFORMAT_VERSION_MAJOR < 59)
 #endif