[FFmpeg-cvslog] vmdaudio: decode directly to the user-provided AVFrame

[Justin Ruggles]

ffmpeg | branch: master | Justin Ruggles <justin.ruggles at gmail.com> | Sun Dec 23 20:10:01 2012 -0500| [f80f8dd4c25a1762a24c9f28dc3f07aad1ff3594] | committer: Justin Ruggles

vmdaudio: decode directly to the user-provided AVFrame

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f80f8dd4c25a1762a24c9f28dc3f07aad1ff3594
---

 libavcodec/vmdav.c |   17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/libavcodec/vmdav.c b/libavcodec/vmdav.c
index cffc00a..88cd167 100644
--- a/libavcodec/vmdav.c
+++ b/libavcodec/vmdav.c
@@ -476,7 +476,6 @@ static av_cold int vmdvideo_decode_end(AVCodecContext *avctx)
 #define BLOCK_TYPE_SILENCE  3
 
 typedef struct VmdAudioContext {
-    AVFrame frame;
     int out_bps;
     int chunk_size;
 } VmdAudioContext;
@@ -521,9 +520,6 @@ static av_cold int vmdaudio_decode_init(AVCodecContext *avctx)
 
     s->chunk_size = avctx->block_align + avctx->channels * (s->out_bps == 2);
 
-    avcodec_get_frame_defaults(&s->frame);
-    avctx->coded_frame = &s->frame;
-
     av_log(avctx, AV_LOG_DEBUG, "%d channels, %d bits/sample, "
            "block align = %d, sample rate = %d\n",
            avctx->channels, avctx->bits_per_coded_sample, avctx->block_align,
@@ -564,6 +560,7 @@ static void decode_audio_s16(int16_t *out, const uint8_t *buf, int buf_size,
 static int vmdaudio_decode_frame(AVCodecContext *avctx, void *data,
                                  int *got_frame_ptr, AVPacket *avpkt)
 {
+    AVFrame *frame     = data;
     const uint8_t *buf = avpkt->data;
     const uint8_t *buf_end;
     int buf_size = avpkt->size;
@@ -608,13 +605,14 @@ static int vmdaudio_decode_frame(AVCodecContext *avctx, void *data,
     audio_chunks = buf_size / s->chunk_size;
 
     /* get output buffer */
-    s->frame.nb_samples = ((silent_chunks + audio_chunks) * avctx->block_align) / avctx->channels;
-    if ((ret = ff_get_buffer(avctx, &s->frame)) < 0) {
+    frame->nb_samples = ((silent_chunks + audio_chunks) * avctx->block_align) /
+                        avctx->channels;
+    if ((ret = ff_get_buffer(avctx, frame)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
         return ret;
     }
-    output_samples_u8  = s->frame.data[0];
-    output_samples_s16 = (int16_t *)s->frame.data[0];
+    output_samples_u8  =            frame->data[0];
+    output_samples_s16 = (int16_t *)frame->data[0];
 
     /* decode silent chunks */
     if (silent_chunks > 0) {
@@ -644,8 +642,7 @@ static int vmdaudio_decode_frame(AVCodecContext *avctx, void *data,
         }
     }
 
-    *got_frame_ptr   = 1;
-    *(AVFrame *)data = s->frame;
+    *got_frame_ptr = 1;
 
     return avpkt->size;
 }