doc: issue tracking: fix grammar/spelling

[ffmpeg] / libavcodec / aacdec.c

diff --git a/libavcodec/aacdec.c b/libavcodec/aacdec.c
index d9f60d6d239e6be9d9dca3e5961b741b9ca3ca57..161e9c6e3f455c44d7f9b58211f6aca126ac1af7 100644 (file)
--- a/libavcodec/aacdec.c
+++ b/libavcodec/aacdec.c
@@ -581,6 +581,8 @@ static av_cold int aac_decode_init(AVCodecContext *avctx)
         sr = sample_rate_idx(avctx->sample_rate);
         ac->m4ac.sampling_index = sr;
         ac->m4ac.channels = avctx->channels;
+        ac->m4ac.sbr = -1;
+        ac->m4ac.ps = -1;
 
         for (i = 0; i < FF_ARRAY_ELEMS(ff_mpeg4audio_channels); i++)
             if (ff_mpeg4audio_channels[i] == avctx->channels)
@@ -591,8 +593,11 @@ static av_cold int aac_decode_init(AVCodecContext *avctx)
         ac->m4ac.chan_config = i;
 
         if (ac->m4ac.chan_config) {
-            set_default_channel_config(avctx, new_che_pos, ac->m4ac.chan_config);
-            output_configure(ac, ac->che_pos, new_che_pos, ac->m4ac.chan_config, OC_GLOBAL_HDR);
+            int ret = set_default_channel_config(avctx, new_che_pos, ac->m4ac.chan_config);
+            if (!ret)
+                output_configure(ac, ac->che_pos, new_che_pos, ac->m4ac.chan_config, OC_GLOBAL_HDR);
+            else if (avctx->error_recognition >= FF_ER_EXPLODE)
+                return AVERROR_INVALIDDATA;
         }
     }
 
@@ -1791,12 +1796,10 @@ static void windowing_and_mdct_ltp(AACContext *ac, float *out,
     } else {
         memset(in, 0, 448 * sizeof(float));
         ac->dsp.vector_fmul(in + 448, in + 448, swindow_prev, 128);
-        memcpy(in + 576, in + 576, 448 * sizeof(float));
     }
     if (ics->window_sequence[0] != LONG_START_SEQUENCE) {
         ac->dsp.vector_fmul_reverse(in + 1024, in + 1024, lwindow, 1024);
     } else {
-        memcpy(in + 1024, in + 1024, 448 * sizeof(float));
         ac->dsp.vector_fmul_reverse(in + 1024 + 448, in + 1024 + 448, swindow, 128);
         memset(in + 1024 + 576, 0, 448 * sizeof(float));
     }
@@ -2091,10 +2094,10 @@ static int parse_adts_frame_header(AACContext *ac, GetBitContext *gb)
         if (ac->output_configured != OC_LOCKED) {
             ac->m4ac.sbr = -1;
             ac->m4ac.ps  = -1;
+            ac->m4ac.sample_rate     = hdr_info.sample_rate;
+            ac->m4ac.sampling_index  = hdr_info.sampling_index;
+            ac->m4ac.object_type     = hdr_info.object_type;
         }
-        ac->m4ac.sample_rate     = hdr_info.sample_rate;
-        ac->m4ac.sampling_index  = hdr_info.sampling_index;
-        ac->m4ac.object_type     = hdr_info.object_type;
         if (!ac->avctx->sample_rate)
             ac->avctx->sample_rate = hdr_info.sample_rate;
         if (hdr_info.num_aac_frames == 1) {
@@ -2115,7 +2118,7 @@ static int aac_decode_frame_int(AVCodecContext *avctx, void *data,
     ChannelElement *che = NULL, *che_prev = NULL;
     enum RawDataBlockType elem_type, elem_type_prev = TYPE_END;
     int err, elem_id, data_size_tmp;
-    int samples = 0, multiplier;
+    int samples = 0, multiplier, audio_found = 0;
 
     if (show_bits(gb, 12) == 0xfff) {
         if (parse_adts_frame_header(ac, gb) < 0) {
@@ -2146,10 +2149,12 @@ static int aac_decode_frame_int(AVCodecContext *avctx, void *data,
 
         case TYPE_SCE:
             err = decode_ics(ac, &che->ch[0], gb, 0, 0);
+            audio_found = 1;
             break;
 
         case TYPE_CPE:
             err = decode_cpe(ac, gb, che);
+            audio_found = 1;
             break;
 
         case TYPE_CCE:
@@ -2158,6 +2163,7 @@ static int aac_decode_frame_int(AVCodecContext *avctx, void *data,
 
         case TYPE_LFE:
             err = decode_ics(ac, &che->ch[0], gb, 0, 0);
+            audio_found = 1;
             break;
 
         case TYPE_DSE:
@@ -2234,7 +2240,7 @@ static int aac_decode_frame_int(AVCodecContext *avctx, void *data,
                                                    samples, avctx->channels);
     }
 
-    if (ac->output_configured)
+    if (ac->output_configured && audio_found)
         ac->output_configured = OC_LOCKED;
 
     return 0;
@@ -2541,14 +2547,13 @@ av_cold static int latm_decode_init(AVCodecContext *avctx)
 
 
 AVCodec ff_aac_decoder = {
-    "aac",
-    AVMEDIA_TYPE_AUDIO,
-    CODEC_ID_AAC,
-    sizeof(AACContext),
-    aac_decode_init,
-    NULL,
-    aac_decode_close,
-    aac_decode_frame,
+    .name           = "aac",
+    .type           = AVMEDIA_TYPE_AUDIO,
+    .id             = CODEC_ID_AAC,
+    .priv_data_size = sizeof(AACContext),
+    .init           = aac_decode_init,
+    .close          = aac_decode_close,
+    .decode         = aac_decode_frame,
     .long_name = NULL_IF_CONFIG_SMALL("Advanced Audio Coding"),
     .sample_fmts = (const enum AVSampleFormat[]) {
         AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE