From 918170d00b7c372d87474ca54603a58f19fdb74a Mon Sep 17 00:00:00 2001
From: Johns <johns98@gmx.net>
Date: Wed, 8 Feb 2012 15:19:18 +0100
Subject: Add support for AAC LATM audio streams.

---
 ChangeLog   |  1 +
 Todo        |  1 +
 codec.c     |  4 ++++
 softhddev.c | 12 ++++++++++--
 4 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 6ce31ea..eb9d781 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,7 @@
 User johns
 Date:
 
+    Add support for AAC LATM audio streams.
     Fix bug: alsa and ffmpeg use different channel layout.
     Support more LPCM sample rates and number of channels.
     Quick&dirty support for mpeg LPCM streams.
diff --git a/Todo b/Todo
index 199fcda..120d928 100644
--- a/Todo
+++ b/Todo
@@ -39,6 +39,7 @@ video:
     hard channel switch
     OSD can only be shown after some stream could be shown
     yaepghd changed position is lost on channel switch
+    use x11 screen size without geometry configuration
 
 vdpau:
     software decoder path not working
diff --git a/codec.c b/codec.c
index a514a33..434203a 100644
--- a/codec.c
+++ b/codec.c
@@ -852,6 +852,10 @@ void CodecAudioDecode(AudioDecoder * audio_decoder, const AVPacket * avpkt)
 	    dpkt->dts = audio_decoder->AudioParser->dts;
 	    buf_sz = sizeof(buf);
 	    l = avcodec_decode_audio3(audio_ctx, buf, &buf_sz, dpkt);
+	    if (l == AVERROR(EAGAIN)) {
+		index += n;		// this is needed for aac latm
+		continue;
+	    }
 	    if (l < 0) {		// no audio frame could be decompressed
 		Error(_("codec: error audio data at %d\n"), index);
 		break;
diff --git a/softhddev.c b/softhddev.c
index 1473171..33ed15b 100644
--- a/softhddev.c
+++ b/softhddev.c
@@ -261,7 +261,7 @@ int PlayAudio(const uint8_t * data, int size,
 	return osize;
     }
     // Detect audio code
-    // MPEG-PS mp2 MPEG1, MPEG2, AC3, LPCM
+    // MPEG-PS mp2 MPEG1, MPEG2, AC3, LPCM, AAC LATM
 
     // Syncword - 0x0B77
     if (data[0] == 0x0B && data[1] == 0x77) {
@@ -279,7 +279,15 @@ int PlayAudio(const uint8_t * data, int size,
 	    CodecAudioOpen(MyAudioDecoder, NULL, CODEC_ID_MP2);
 	    AudioCodecID = CODEC_ID_MP2;
 	}
-	// Private stram + LPCM ID
+	// latm header 0x56E0 11bits: 0x2B7
+    } else if (data[0] == 0x56 && (data[1] & 0xE0) == 0xE0) {
+	if (AudioCodecID != CODEC_ID_AAC_LATM) {
+	    Debug(3, "[softhddev]%s: AAC LATM %d\n", __FUNCTION__, id);
+	    CodecAudioClose(MyAudioDecoder);
+	    CodecAudioOpen(MyAudioDecoder, NULL, CODEC_ID_AAC_LATM);
+	    AudioCodecID = CODEC_ID_AAC_LATM;
+	}
+	// Private stream + LPCM ID
     } else if (data[-n - 9 + 3] == 0xBD && data[0] == 0xA0) {
 	if (AudioCodecID != CODEC_ID_PCM_DVD) {
 	    static int samplerates[] = { 48000, 96000, 44100, 32000 };
-- 
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