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/ra288.c | 27 ++++++++++++++++++---------
 1 file changed, 18 insertions(+), 9 deletions(-)

(limited to 'libavcodec/ra288.c')

diff --git a/libavcodec/ra288.c b/libavcodec/ra288.c
index eac2e2e3cd..062d9fac94 100644
--- a/libavcodec/ra288.c
+++ b/libavcodec/ra288.c
@@ -36,6 +36,7 @@
 #define RA288_BLOCKS_PER_FRAME 32
 
 typedef struct {
+    AVFrame frame;
     DSPContext dsp;
     DECLARE_ALIGNED(16, float,   sp_lpc)[FFALIGN(36, 8)];   ///< LPC coefficients for speech data (spec: A)
     DECLARE_ALIGNED(16, float, gain_lpc)[FFALIGN(10, 8)];   ///< LPC coefficients for gain        (spec: GB)
@@ -62,6 +63,10 @@ static av_cold int ra288_decode_init(AVCodecContext *avctx)
     RA288Context *ractx = avctx->priv_data;
     avctx->sample_fmt = AV_SAMPLE_FMT_FLT;
     dsputil_init(&ractx->dsp, avctx);
+
+    avcodec_get_frame_defaults(&ractx->frame);
+    avctx->coded_frame = &ractx->frame;
+
     return 0;
 }
 
@@ -165,12 +170,12 @@ static void backward_filter(RA288Context *ractx,
 }
 
 static int ra288_decode_frame(AVCodecContext * avctx, void *data,
-                              int *data_size, AVPacket *avpkt)
+                              int *got_frame_ptr, AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
-    float *out = data;
-    int i, out_size;
+    float *out;
+    int i, ret;
     RA288Context *ractx = avctx->priv_data;
     GetBitContext gb;
 
@@ -181,12 +186,13 @@ static int ra288_decode_frame(AVCodecContext * avctx, void *data,
         return AVERROR_INVALIDDATA;
     }
 
-    out_size = RA288_BLOCK_SIZE * RA288_BLOCKS_PER_FRAME *
-               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 */
+    ractx->frame.nb_samples = RA288_BLOCK_SIZE * RA288_BLOCKS_PER_FRAME;
+    if ((ret = avctx->get_buffer(avctx, &ractx->frame)) < 0) {
+        av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+        return ret;
     }
+    out = (float *)ractx->frame.data[0];
 
     init_get_bits(&gb, buf, avctx->block_align * 8);
 
@@ -208,7 +214,9 @@ static int ra288_decode_frame(AVCodecContext * avctx, void *data,
         }
     }
 
-    *data_size = out_size;
+    *got_frame_ptr   = 1;
+    *(AVFrame *)data = ractx->frame;
+
     return avctx->block_align;
 }
 
@@ -219,5 +227,6 @@ AVCodec ff_ra_288_decoder = {
     .priv_data_size = sizeof(RA288Context),
     .init           = ra288_decode_init,
     .decode         = ra288_decode_frame,
+    .capabilities   = CODEC_CAP_DR1,
     .long_name      = NULL_IF_CONFIG_SMALL("RealAudio 2.0 (28.8K)"),
 };
-- 
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