Merge remote-tracking branch 'qatar/master'

* qatar/master:
  aac_latm: reconfigure decoder on audio specific config changes
  latmdec: fix audio specific config parsing
  Add avcodec_decode_audio4().
  avcodec: change number of plane pointers from 4 to 8 at next major bump.
  Update developers documentation with coding conventions.
  svq1dec: avoid undefined get_bits(0) call
  ARM: h264dsp_neon cosmetics
  ARM: make some NEON macros reusable
  Do not memcpy raw video frames when using null muxer
  fate: update asf seektest
  vp8: flush buffers on size changes.
  doc: improve general documentation for MacOSX
  asf: use packet dts as approximation of pts
  asf: do not call av_read_frame
  rtsp: Initialize the media_type_mask in the rtp guessing demuxer
  Cleaned up alacenc.c

Conflicts:
	doc/APIchanges
	doc/developer.texi
	libavcodec/8svx.c
	libavcodec/aacdec.c
	libavcodec/ac3dec.c
	libavcodec/avcodec.h
	libavcodec/nellymoserdec.c
	libavcodec/tta.c
	libavcodec/utils.c
	libavcodec/version.h
	libavcodec/wmadec.c
	libavformat/asfdec.c
	tests/ref/seek/lavf_asf

Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/mace.c

@@ -153,6 +153,7 @@ typedef struct ChannelData {
 } ChannelData;
 
 typedef struct MACEContext {
+    AVFrame frame;
     ChannelData chd[2];
 } MACEContext;
 
@@ -228,30 +229,35 @@ static void chomp6(ChannelData *chd, int16_t *output, uint8_t val,
 
 static av_cold int mace_decode_init(AVCodecContext * avctx)
 {
+    MACEContext *ctx = avctx->priv_data;
+
     if (avctx->channels > 2)
         return -1;
     avctx->sample_fmt = AV_SAMPLE_FMT_S16;
+
+    avcodec_get_frame_defaults(&ctx->frame);
+    avctx->coded_frame = &ctx->frame;
+
     return 0;
 }
 
-static int mace_decode_frame(AVCodecContext *avctx,
-                              void *data, int *data_size,
-                              AVPacket *avpkt)
+static int mace_decode_frame(AVCodecContext *avctx, void *data,
+                             int *got_frame_ptr, AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
-    int16_t *samples = data;
+    int16_t *samples;
     MACEContext *ctx = avctx->priv_data;
-    int i, j, k, l;
-    int out_size;
+    int i, j, k, l, ret;
     int is_mace3 = (avctx->codec_id == CODEC_ID_MACE3);
 
-    out_size = 3 * (buf_size << (1 - is_mace3)) *
-               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 */
+    ctx->frame.nb_samples = 3 * (buf_size << (1 - is_mace3)) / avctx->channels;
+    if ((ret = avctx->get_buffer(avctx, &ctx->frame)) < 0) {
+        av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+        return ret;
     }
+    samples = (int16_t *)ctx->frame.data[0];
 
     for(i = 0; i < avctx->channels; i++) {
         int16_t *output = samples + i;
@@ -277,7 +283,8 @@ static int mace_decode_frame(AVCodecContext *avctx,
             }
     }
 
-    *data_size = out_size;
+    *got_frame_ptr   = 1;
+    *(AVFrame *)data = ctx->frame;
 
     return buf_size;
 }
@@ -289,6 +296,7 @@ AVCodec ff_mace3_decoder = {
     .priv_data_size = sizeof(MACEContext),
     .init           = mace_decode_init,
     .decode         = mace_decode_frame,
+    .capabilities   = CODEC_CAP_DR1,
     .long_name = NULL_IF_CONFIG_SMALL("MACE (Macintosh Audio Compression/Expansion) 3:1"),
 };
 
@@ -299,6 +307,7 @@ AVCodec ff_mace6_decoder = {
     .priv_data_size = sizeof(MACEContext),
     .init           = mace_decode_init,
     .decode         = mace_decode_frame,
+    .capabilities   = CODEC_CAP_DR1,
     .long_name = NULL_IF_CONFIG_SMALL("MACE (Macintosh Audio Compression/Expansion) 6:1"),
 };