[FFmpeg-devel] [PATCH] avcodec: Use preprocessors conditions

[pawday at mail.ru]

From: Pawday <pawday at mail.ru>

Thank you Andreas Rheinhardt for review

Here the fixes for runtime "else" conditions

---
 libavcodec/avcodec.c | 16 +++++++++++-----
 libavcodec/decode.c  | 11 ++++++++---
 libavcodec/encode.c  | 13 ++++++++-----
 libavcodec/h264dec.c | 14 +++++++-------
 4 files changed, 34 insertions(+), 20 deletions(-)

diff --git a/libavcodec/avcodec.c b/libavcodec/avcodec.c
index a85d3c2309..0e792aead9 100644
--- a/libavcodec/avcodec.c
+++ b/libavcodec/avcodec.c
@@ -403,10 +403,13 @@ void avcodec_flush_buffers(AVCodecContext *avctx)
     av_frame_unref(avci->buffer_frame);
     av_packet_unref(avci->buffer_pkt);
 
-    if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
+#if HAVE_THREADS
+    if (avctx->active_thread_type & FF_THREAD_FRAME)
         ff_thread_flush(avctx);
-    else if (ffcodec(avctx->codec)->flush)
+#else
+    if (ffcodec(avctx->codec)->flush)
         ffcodec(avctx->codec)->flush(avctx);
+#endif
 }
 
 void avsubtitle_free(AVSubtitle *sub)
@@ -441,12 +444,15 @@ av_cold int avcodec_close(AVCodecContext *avctx)
     if (avcodec_is_open(avctx)) {
         AVCodecInternal *avci = avctx->internal;
 
-        if (CONFIG_FRAME_THREAD_ENCODER &&
-            avci->frame_thread_encoder && avctx->thread_count > 1) {
+#if CONFIG_FRAME_THREAD_ENCODER
+        if (avci->frame_thread_encoder && avctx->thread_count > 1) {
             ff_frame_thread_encoder_free(avctx);
         }
-        if (HAVE_THREADS && avci->thread_ctx)
+#endif
+#if HAVE_THREADS
+        if (avci->thread_ctx)
             ff_thread_free(avctx);
+#endif
         if (avci->needs_close && ffcodec(avctx->codec)->close)
             ffcodec(avctx->codec)->close(avctx);
         avci->byte_buffer_size = 0;
diff --git a/libavcodec/decode.c b/libavcodec/decode.c
index 6be2d3d6ed..54ffd0f203 100644
--- a/libavcodec/decode.c
+++ b/libavcodec/decode.c
@@ -300,10 +300,14 @@ static inline int decode_simple_internal(AVCodecContext *avctx, AVFrame *frame,
         return AVERROR_EOF;
 
     got_frame = 0;
-
-    if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) {
+#if HAVE_THREADS
+    if (avctx->active_thread_type & FF_THREAD_FRAME) {
         ret = ff_thread_decode_frame(avctx, frame, &got_frame, pkt);
-    } else {
+    }
+#endif
+
+#if !HAVE_THREADS
+    if (!(avctx->active_thread_type & FF_THREAD_FRAME)) {
         ret = codec->cb.decode(avctx, frame, &got_frame, pkt);
 
         if (!(codec->caps_internal & FF_CODEC_CAP_SETS_PKT_DTS))
@@ -321,6 +325,7 @@ static inline int decode_simple_internal(AVCodecContext *avctx, AVFrame *frame,
             }
         }
     }
+#endif
     emms_c();
     actual_got_frame = got_frame;
 
diff --git a/libavcodec/encode.c b/libavcodec/encode.c
index fbe2c97cd6..b19599e67e 100644
--- a/libavcodec/encode.c
+++ b/libavcodec/encode.c
@@ -269,17 +269,20 @@ static int encode_simple_internal(AVCodecContext *avctx, AVPacket *avpkt)
     got_packet = 0;
 
     av_assert0(codec->cb_type == FF_CODEC_CB_TYPE_ENCODE);
-
-    if (CONFIG_FRAME_THREAD_ENCODER && avci->frame_thread_encoder)
+#if CONFIG_FRAME_THREAD_ENCODER
+    if (avci->frame_thread_encoder)
         /* This will unref frame. */
         ret = ff_thread_video_encode_frame(avctx, avpkt, frame, &got_packet);
-    else {
+#endif
+#if !CONFIG_FRAME_THREAD_ENCODER
+    if (!avci->frame_thread_encoder) {
         ret = ff_encode_encode_cb(avctx, avpkt, frame, &got_packet);
 #if FF_API_THREAD_SAFE_CALLBACKS
         if (frame)
             av_frame_unref(frame);
 #endif
     }
+#endif // !CONFIG_FRAME_THREAD_ENCODER
 
     if (avci->draining && !got_packet)
         avci->draining_done = 1;
@@ -670,11 +673,11 @@ int ff_encode_preinit(AVCodecContext *avctx)
             return AVERROR(ENOMEM);
     }
 
-    if (CONFIG_FRAME_THREAD_ENCODER) {
+#if CONFIG_FRAME_THREAD_ENCODER
         ret = ff_frame_thread_encoder_init(avctx);
         if (ret < 0)
             return ret;
-    }
+#endif
 
     return 0;
 }
diff --git a/libavcodec/h264dec.c b/libavcodec/h264dec.c
index 6ede4e8c9f..4538974dab 100644
--- a/libavcodec/h264dec.c
+++ b/libavcodec/h264dec.c
@@ -933,13 +933,13 @@ static int finalize_frame(H264Context *h, AVFrame *dst, H264Picture *out, int *g
 
         *got_frame = 1;
 
-        if (CONFIG_MPEGVIDEODEC) {
-            ff_print_debug_info2(h->avctx, dst, NULL,
-                                 out->mb_type,
-                                 out->qscale_table,
-                                 out->motion_val,
-                                 out->mb_width, out->mb_height, out->mb_stride, 1);
-        }
+#if CONFIG_MPEGVIDEODEC
+        ff_print_debug_info2(h->avctx, dst, NULL,
+                             out->mb_type,
+                             out->qscale_table,
+                             out->motion_val,
+                             out->mb_width, out->mb_height, out->mb_stride, 1);
+#endif
     }
 
     return 0;
--