aac: decode directly to the user-provided AVFrame

libavcodec/aac.h

@@ -262,7 +262,7 @@ typedef struct ChannelElement {
  */
 typedef struct AACContext {
     AVCodecContext *avctx;
-    AVFrame frame;
+    AVFrame *frame;
 
     int is_saved;                 ///< Set if elements have stored overlap from previous frame.
     DynamicRangeControl che_drc;

libavcodec/aacdec.c

@@ -180,8 +180,8 @@ static int frame_configure_elements(AVCodecContext *avctx)
     }
 
     /* get output buffer */
-    ac->frame.nb_samples = 2048;
-    if ((ret = ff_get_buffer(avctx, &ac->frame)) < 0) {
+    ac->frame->nb_samples = 2048;
+    if ((ret = ff_get_buffer(avctx, ac->frame)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
         return ret;
     }
@@ -189,7 +189,7 @@ static int frame_configure_elements(AVCodecContext *avctx)
     /* map output channel pointers to AVFrame data */
     for (ch = 0; ch < avctx->channels; ch++) {
         if (ac->output_element[ch])
-            ac->output_element[ch]->ret = (float *)ac->frame.extended_data[ch];
+            ac->output_element[ch]->ret = (float *)ac->frame->extended_data[ch];
     }
 
     return 0;
@@ -918,9 +918,6 @@ static av_cold int aac_decode_init(AVCodecContext *avctx)
 
     cbrt_tableinit();
 
-    avcodec_get_frame_defaults(&ac->frame);
-    avctx->coded_frame = &ac->frame;
-
     return 0;
 }
 
@@ -2389,6 +2386,8 @@ static int aac_decode_frame_int(AVCodecContext *avctx, void *data,
     int err, elem_id;
     int samples = 0, multiplier, audio_found = 0, pce_found = 0;
 
+    ac->frame = data;
+
     if (show_bits(gb, 12) == 0xfff) {
         if (parse_adts_frame_header(ac, gb) < 0) {
             av_log(avctx, AV_LOG_ERROR, "Error decoding AAC frame header.\n");
@@ -2503,10 +2502,8 @@ static int aac_decode_frame_int(AVCodecContext *avctx, void *data,
     multiplier = (ac->oc[1].m4ac.sbr == 1) ? ac->oc[1].m4ac.ext_sample_rate > ac->oc[1].m4ac.sample_rate : 0;
     samples <<= multiplier;
 
-    if (samples) {
-        ac->frame.nb_samples = samples;
-        *(AVFrame *)data = ac->frame;
-    }
+    if (samples)
+        ac->frame->nb_samples = samples;
     *got_frame_ptr = !!samples;
 
     if (ac->oc[1].status && audio_found) {