cog/ThirdParty/ffmpeg/patches/0003-avcodec-libfdk_aac-sup...

34 lines
1.2 KiB
Diff

diff --git a/libavcodec/libfdk-aacdec.c b/libavcodec/libfdk-aacdec.c
index 1a86dffe4b..565621b973 100644
--- a/libavcodec/libfdk-aacdec.c
+++ b/libavcodec/libfdk-aacdec.c
@@ -335,7 +335,7 @@ static av_cold int fdk_aac_decode_init(AVCodecContext *avctx)
}
#endif
- avctx->sample_fmt = AV_SAMPLE_FMT_S16;
+ avctx->sample_fmt = AV_SAMPLE_FMT_FLT;
s->decoder_buffer_size = DECODER_BUFFSIZE * DECODER_MAX_CHANNELS;
s->decoder_buffer = av_malloc(s->decoder_buffer_size);
@@ -384,9 +384,19 @@ static int fdk_aac_decode_frame(AVCodecContext *avctx, void *data,
(AVRational){1, avctx->sample_rate},
avctx->time_base);
+#if 0
memcpy(frame->extended_data[0], s->decoder_buffer,
avctx->channels * avctx->frame_size *
av_get_bytes_per_sample(avctx->sample_fmt));
+#else
+ {
+ INT_PCM *in = (INT_PCM *) s->decoder_buffer;
+ float *out = (float *) frame->extended_data[0];
+ const float scale = 1.0f / (float)0x800000;
+ for (int i = 0, j = avctx->channels * avctx->frame_size; i < j; i++)
+ *out++ = (float)(*in++) * scale;
+ }
+#endif
*got_frame_ptr = 1;
ret = avpkt->size - valid;