lavc: deprecate unused AVCodecContext.stream_codec_tag

[ffmpeg] / libavcodec / aac_ac3_parser.c

diff --git a/libavcodec/aac_ac3_parser.c b/libavcodec/aac_ac3_parser.c
index 8132ce899a811726f35bdbd1e32654acc5324215..d3da9b7696442ed32b8f8fe8562baeabcfbb08c3 100644 (file)
--- a/libavcodec/aac_ac3_parser.c
+++ b/libavcodec/aac_ac3_parser.c
@@ -20,6 +20,8 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include "libavutil/channel_layout.h"
+#include "libavutil/common.h"
 #include "parser.h"
 #include "aac_ac3_parser.h"
 
@@ -78,17 +80,26 @@ get_next:
        and total number of samples found in an AAC ADTS header are not
        reliable. Bit rate is still accurate because the total frame duration in
        seconds is still correct (as is the number of bits in the frame). */
-    if (avctx->codec_id != CODEC_ID_AAC) {
+    if (avctx->codec_id != AV_CODEC_ID_AAC) {
         avctx->sample_rate = s->sample_rate;
 
-        /* allow downmixing to stereo (or mono for AC-3) */
-        if(avctx->request_channels > 0 &&
-                avctx->request_channels < s->channels &&
-                (avctx->request_channels <= 2 ||
-                (avctx->request_channels == 1 &&
-                (avctx->codec_id == CODEC_ID_AC3 ||
-                 avctx->codec_id == CODEC_ID_EAC3)))) {
-            avctx->channels = avctx->request_channels;
+        /* (E-)AC-3: allow downmixing to stereo or mono */
+#if FF_API_REQUEST_CHANNELS
+FF_DISABLE_DEPRECATION_WARNINGS
+        if (avctx->request_channels == 1)
+            avctx->request_channel_layout = AV_CH_LAYOUT_MONO;
+        else if (avctx->request_channels == 2)
+            avctx->request_channel_layout = AV_CH_LAYOUT_STEREO;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+        if (s->channels > 1 &&
+            avctx->request_channel_layout == AV_CH_LAYOUT_MONO) {
+            avctx->channels       = 1;
+            avctx->channel_layout = AV_CH_LAYOUT_MONO;
+        } else if (s->channels > 2 &&
+                   avctx->request_channel_layout == AV_CH_LAYOUT_STEREO) {
+            avctx->channels       = 2;
+            avctx->channel_layout = AV_CH_LAYOUT_STEREO;
         } else {
             avctx->channels = s->channels;
             avctx->channel_layout = s->channel_layout;