From 0eea212943544d40f99b05571aa7159d78667154 Mon Sep 17 00:00:00 2001
From: Justin Ruggles <justin.ruggles@gmail.com>
Date: Tue, 6 Sep 2011 12:17:45 -0400
Subject: Add avcodec_decode_audio4().

Deprecate avcodec_decode_audio3().
Implement audio support in avcodec_default_get_buffer().
Implement the new audio decoder API in all audio decoders.
---
 libavcodec/atrac3.c | 34 +++++++++++++++++++++-------------
 1 file changed, 21 insertions(+), 13 deletions(-)

(limited to 'libavcodec/atrac3.c')

diff --git a/libavcodec/atrac3.c b/libavcodec/atrac3.c
index 3a48a5a647..bdd03402da 100644
--- a/libavcodec/atrac3.c
+++ b/libavcodec/atrac3.c
@@ -86,6 +86,7 @@ typedef struct {
 } channel_unit;
 
 typedef struct {
+    AVFrame             frame;
     GetBitContext       gb;
     //@{
     /** stream data */
@@ -823,16 +824,16 @@ static int decodeFrame(ATRAC3Context *q, const uint8_t* databuf,
  * @param avctx     pointer to the AVCodecContext
  */
 
-static int atrac3_decode_frame(AVCodecContext *avctx,
-            void *data, int *data_size,
-            AVPacket *avpkt) {
+static int atrac3_decode_frame(AVCodecContext *avctx, void *data,
+                               int *got_frame_ptr, AVPacket *avpkt)
+{
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
     ATRAC3Context *q = avctx->priv_data;
-    int result = 0, out_size;
+    int result;
     const uint8_t* databuf;
-    float   *samples_flt = data;
-    int16_t *samples_s16 = data;
+    float   *samples_flt;
+    int16_t *samples_s16;
 
     if (buf_size < avctx->block_align) {
         av_log(avctx, AV_LOG_ERROR,
@@ -840,12 +841,14 @@ static int atrac3_decode_frame(AVCodecContext *avctx,
         return AVERROR_INVALIDDATA;
     }
 
-    out_size = SAMPLES_PER_FRAME * q->channels *
-               av_get_bytes_per_sample(avctx->sample_fmt);
-    if (*data_size < out_size) {
-        av_log(avctx, AV_LOG_ERROR, "Output buffer is too small\n");
-        return AVERROR(EINVAL);
+    /* get output buffer */
+    q->frame.nb_samples = SAMPLES_PER_FRAME;
+    if ((result = avctx->get_buffer(avctx, &q->frame)) < 0) {
+        av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+        return result;
     }
+    samples_flt = (float   *)q->frame.data[0];
+    samples_s16 = (int16_t *)q->frame.data[0];
 
     /* Check if we need to descramble and what buffer to pass on. */
     if (q->scrambled_stream) {
@@ -875,7 +878,9 @@ static int atrac3_decode_frame(AVCodecContext *avctx,
                                               (const float **)q->outSamples,
                                               SAMPLES_PER_FRAME, q->channels);
     }
-    *data_size = out_size;
+
+    *got_frame_ptr   = 1;
+    *(AVFrame *)data = q->frame;
 
     return avctx->block_align;
 }
@@ -1047,6 +1052,9 @@ static av_cold int atrac3_decode_init(AVCodecContext *avctx)
         }
     }
 
+    avcodec_get_frame_defaults(&q->frame);
+    avctx->coded_frame = &q->frame;
+
     return 0;
 }
 
@@ -1060,6 +1068,6 @@ AVCodec ff_atrac3_decoder =
     .init = atrac3_decode_init,
     .close = atrac3_decode_close,
     .decode = atrac3_decode_frame,
-    .capabilities = CODEC_CAP_SUBFRAMES,
+    .capabilities = CODEC_CAP_SUBFRAMES | CODEC_CAP_DR1,
     .long_name = NULL_IF_CONFIG_SMALL("Atrac 3 (Adaptive TRansform Acoustic Coding 3)"),
 };
-- 
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