pcm-bluray: decode directly to the user-provided AVFrame

libavcodec/pcm-mpeg.c

@@ -121,26 +121,12 @@ static int pcm_bluray_parse_header(AVCodecContext *avctx,
     return 0;
 }
 
-typedef struct PCMBRDecode {
-    AVFrame frame;
-} PCMBRDecode;
-
-static av_cold int pcm_bluray_decode_init(AVCodecContext * avctx)
-{
-    PCMBRDecode *s = avctx->priv_data;
-
-    avcodec_get_frame_defaults(&s->frame);
-    avctx->coded_frame = &s->frame;
-
-    return 0;
-}
-
 static int pcm_bluray_decode_frame(AVCodecContext *avctx, void *data,
                                    int *got_frame_ptr, AVPacket *avpkt)
 {
+    AVFrame *frame     = data;
     const uint8_t *src = avpkt->data;
     int buf_size = avpkt->size;
-    PCMBRDecode *s = avctx->priv_data;
     GetByteContext gb;
     int num_source_channels, channel, retval;
     int sample_size, samples;
@@ -165,13 +151,13 @@ static int pcm_bluray_decode_frame(AVCodecContext *avctx, void *data,
     samples = buf_size / sample_size;
 
     /* get output buffer */
-    s->frame.nb_samples = samples;
-    if ((retval = ff_get_buffer(avctx, &s->frame)) < 0) {
+    frame->nb_samples = samples;
+    if ((retval = ff_get_buffer(avctx, frame)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
         return retval;
     }
-    dst16 = (int16_t *)s->frame.data[0];
-    dst32 = (int32_t *)s->frame.data[0];
+    dst16 = (int16_t *)frame->data[0];
+    dst32 = (int32_t *)frame->data[0];
 
     if (samples) {
         switch (avctx->channel_layout) {
@@ -305,8 +291,7 @@ static int pcm_bluray_decode_frame(AVCodecContext *avctx, void *data,
         }
     }
 
-    *got_frame_ptr   = 1;
-    *(AVFrame *)data = s->frame;
+    *got_frame_ptr = 1;
 
     retval = bytestream2_tell(&gb);
     if (avctx->debug & FF_DEBUG_BITSTREAM)
@@ -319,8 +304,6 @@ AVCodec ff_pcm_bluray_decoder = {
     .name           = "pcm_bluray",
     .type           = AVMEDIA_TYPE_AUDIO,
     .id             = AV_CODEC_ID_PCM_BLURAY,
-    .priv_data_size = sizeof(PCMBRDecode),
-    .init           = pcm_bluray_decode_init,
     .decode         = pcm_bluray_decode_frame,
     .capabilities   = CODEC_CAP_DR1,
     .sample_fmts    = (const enum AVSampleFormat[]){