Due to seeking, the decoder should not assume anything about the ordering of
the packets. The first packet received could be in the middle of the stream,
or the user could seek back to the start of the stream during decoding.
---
 libavcodec/vorbisdec.c |    7 -------
 tests/fate/vorbis.mak  |   20 ++++++++++++++++++++
 2 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/libavcodec/vorbisdec.c b/libavcodec/vorbisdec.c
index f5a541a..ac7c3e9 100644
--- a/libavcodec/vorbisdec.c
+++ b/libavcodec/vorbisdec.c
@@ -129,7 +129,6 @@ typedef struct vorbis_context_s {
     FmtConvertContext fmt_conv;
 
     FFTContext mdct[2];
-    uint8_t       first_frame;
     uint32_t      version;
     uint8_t       audio_channels;
     uint32_t      audio_samplerate;
@@ -1665,12 +1664,6 @@ static int vorbis_decode_frame(AVCodecContext 
*avccontext, void *data,
     if ((len = vorbis_parse_audio_packet(vc)) <= 0)
         return len;
 
-    if (!vc->first_frame) {
-        vc->first_frame = 1;
-        *got_frame_ptr = 0;
-        return buf_size;
-    }
-
     av_dlog(NULL, "parsed %d bytes %d bits, returned %d samples (*ch*bits) \n",
             get_bits_count(gb) / 8, get_bits_count(gb) % 8, len);
 
diff --git a/tests/fate/vorbis.mak b/tests/fate/vorbis.mak
index 774cb35..d6d412f 100644
--- a/tests/fate/vorbis.mak
+++ b/tests/fate/vorbis.mak
@@ -1,84 +1,104 @@
 FATE_VORBIS += fate-vorbis-1
 fate-vorbis-1: CMD = pcm -i $(SAMPLES)/vorbis/1.0.1-test_small.ogg
 fate-vorbis-1: REF = $(SAMPLES)/vorbis/1.0.1-test_small.pcm
+fate-vorbis-1: CMP_SHIFT = -512
 
 FATE_VORBIS += fate-vorbis-2
 fate-vorbis-2: CMD = pcm -i $(SAMPLES)/vorbis/1.0-test_small.ogg
 fate-vorbis-2: REF = $(SAMPLES)/vorbis/1.0-test_small.pcm
+fate-vorbis-2: CMP_SHIFT = -512
 
 FATE_VORBIS += fate-vorbis-3
 fate-vorbis-3: CMD = pcm -i $(SAMPLES)/vorbis/beta3-test_small.ogg
 fate-vorbis-3: REF = $(SAMPLES)/vorbis/beta3-test_small.pcm
+fate-vorbis-3: CMP_SHIFT = -512
 
 FATE_VORBIS += fate-vorbis-4
 fate-vorbis-4: CMD = pcm -i $(SAMPLES)/vorbis/beta4-test_small.ogg
 fate-vorbis-4: REF = $(SAMPLES)/vorbis/beta4-test_small.pcm
+fate-vorbis-4: CMP_SHIFT = -256
 
 FATE_VORBIS += fate-vorbis-5
 fate-vorbis-5: CMD = pcm -i $(SAMPLES)/vorbis/chain-test1_small.ogg
 fate-vorbis-5: REF = $(SAMPLES)/vorbis/chain-test1_small.pcm
+fate-vorbis-5: CMP_SHIFT = -512
 
 FATE_VORBIS += fate-vorbis-6
 fate-vorbis-6: CMD = pcm -i $(SAMPLES)/vorbis/chain-test2_small.ogg
 fate-vorbis-6: REF = $(SAMPLES)/vorbis/chain-test2_small.pcm
+fate-vorbis-6: CMP_SHIFT = -256
 
 FATE_VORBIS += fate-vorbis-7
 fate-vorbis-7: CMD = pcm -i $(SAMPLES)/vorbis/highrate-test_small.ogg
 fate-vorbis-7: REF = $(SAMPLES)/vorbis/highrate-test_small.pcm
+fate-vorbis-7: CMP_SHIFT = -512
 
 FATE_VORBIS += fate-vorbis-8
 fate-vorbis-8: CMD = pcm -i $(SAMPLES)/vorbis/lsp-test2_small.ogg
 fate-vorbis-8: REF = $(SAMPLES)/vorbis/lsp-test2_small.pcm
+fate-vorbis-8: CMP_SHIFT = -512
 
 FATE_VORBIS += fate-vorbis-9
 fate-vorbis-9: CMD = pcm -i $(SAMPLES)/vorbis/lsp-test3_small.ogg
 fate-vorbis-9: REF = $(SAMPLES)/vorbis/lsp-test3_small.pcm
+fate-vorbis-9: CMP_SHIFT = -512
 
 FATE_VORBIS += fate-vorbis-10
 fate-vorbis-10: CMD = pcm -i $(SAMPLES)/vorbis/lsp-test4_small.ogg
 fate-vorbis-10: REF = $(SAMPLES)/vorbis/lsp-test4_small.pcm
+fate-vorbis-10: CMP_SHIFT = -512
 
 FATE_VORBIS += fate-vorbis-11
 fate-vorbis-11: CMD = pcm -i $(SAMPLES)/vorbis/lsp-test_small.ogg
 fate-vorbis-11: REF = $(SAMPLES)/vorbis/lsp-test_small.pcm
+fate-vorbis-11: CMP_SHIFT = -1024
 
 FATE_VORBIS += fate-vorbis-12
 fate-vorbis-12: CMD = pcm -i $(SAMPLES)/vorbis/mono_small.ogg
 fate-vorbis-12: REF = $(SAMPLES)/vorbis/mono_small.pcm
+fate-vorbis-12: CMP_SHIFT = -256
 
 FATE_VORBIS += fate-vorbis-13
 fate-vorbis-13: CMD = pcm -i $(SAMPLES)/vorbis/moog_small.ogg
 fate-vorbis-13: REF = $(SAMPLES)/vorbis/moog_small.pcm
 fate-vorbis-13: FUZZ = 2
+fate-vorbis-13: CMP_SHIFT = -512
 
 FATE_VORBIS += fate-vorbis-14
 fate-vorbis-14: CMD = pcm -i $(SAMPLES)/vorbis/rc1-test_small.ogg
 fate-vorbis-14: REF = $(SAMPLES)/vorbis/rc1-test_small.pcm
+fate-vorbis-14: CMP_SHIFT = -512
 
 FATE_VORBIS += fate-vorbis-15
 fate-vorbis-15: CMD = pcm -i $(SAMPLES)/vorbis/rc2-test2_small.ogg
 fate-vorbis-15: REF = $(SAMPLES)/vorbis/rc2-test2_small.pcm
+fate-vorbis-15: CMP_SHIFT = -512
 
 FATE_VORBIS += fate-vorbis-16
 fate-vorbis-16: CMD = pcm -i $(SAMPLES)/vorbis/rc2-test_small.ogg
 fate-vorbis-16: REF = $(SAMPLES)/vorbis/rc2-test_small.pcm
+fate-vorbis-16: CMP_SHIFT = -512
 
 FATE_VORBIS += fate-vorbis-17
 fate-vorbis-17: CMD = pcm -i $(SAMPLES)/vorbis/rc3-test_small.ogg
 fate-vorbis-17: REF = $(SAMPLES)/vorbis/rc3-test_small.pcm
+fate-vorbis-17: CMP_SHIFT = -512
 
 FATE_VORBIS += fate-vorbis-18
 fate-vorbis-18: CMD = pcm -i $(SAMPLES)/vorbis/sleepzor_small.ogg
 fate-vorbis-18: REF = $(SAMPLES)/vorbis/sleepzor_small.pcm
 fate-vorbis-18: FUZZ = 2
+fate-vorbis-18: CMP_SHIFT = -512
 
 FATE_VORBIS += fate-vorbis-19
 fate-vorbis-19: CMD = pcm -i $(SAMPLES)/vorbis/test-short2_small.ogg
 fate-vorbis-19: REF = $(SAMPLES)/vorbis/test-short2_small.pcm
+fate-vorbis-19: CMP_SHIFT = -512
 
 FATE_VORBIS += fate-vorbis-20
 fate-vorbis-20: CMD = pcm -i $(SAMPLES)/vorbis/6.ogg
 fate-vorbis-20: REF = $(SAMPLES)/vorbis/6.pcm
+fate-vorbis-20: CMP_SHIFT = -1536
 
 FATE_SAMPLES_AVCONV += $(FATE_VORBIS)
 fate-vorbis: $(FATE_VORBIS)
-- 
1.7.1

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