ffplay: use correct context for av_log

Recent commits c3e8de1c and
8dc6e92c used av_log incorrectly.
This fixes such usage.
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
Signed-off-by: Marton Balint <cus@passwd.hu>

ffplay.c

@@ -456,12 +456,12 @@ static int packet_queue_init(PacketQueue *q)
     memset(q, 0, sizeof(PacketQueue));
     q->mutex = SDL_CreateMutex();
     if (!q->mutex) {
-        av_log(q, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError());
+        av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError());
         return AVERROR(ENOMEM);
     }
     q->cond = SDL_CreateCond();
     if (!q->cond) {
-        av_log(q, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError());
+        av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError());
         return AVERROR(ENOMEM);
     }
     q->abort_request = 1;
@@ -2089,7 +2089,7 @@ static int decoder_start(Decoder *d, int (*fn)(void *), void *arg)
     packet_queue_start(d->queue);
     d->decoder_tid = SDL_CreateThread(fn, arg);
     if (!d->decoder_tid) {
-        av_log(d, AV_LOG_ERROR, "SDL_CreateThread(): %s\n", SDL_GetError());
+        av_log(NULL, AV_LOG_ERROR, "SDL_CreateThread(): %s\n", SDL_GetError());
         return AVERROR(ENOMEM);
     }
     return 0;