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vdpaumpegdec: drop all frames before a GOP when we seek

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This commit is contained in:
Carl-Anton Ingmarsson 2009-06-08 14:35:29 +02:00 committed by Jan Schmidt
parent aff91bb89a
commit 53a5272f73
2 changed files with 26 additions and 1 deletions
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18
sys/vdpau/gstvdpmpegdec.c
View file

@ -499,6 +499,9 @@ gst_vdp_mpeg_dec_parse_sequence (GstVdpMpegDec * mpeg_dec, GstBuffer * buffer)
memcpy (&mpeg_dec->vdp_info.non_intra_quantizer_matrix,
&hdr.non_intra_quantizer_matrix, 64);
if (mpeg_dec->state == GST_VDP_MPEG_DEC_NEED_SEQUENCE)
mpeg_dec->state = GST_VDP_MPEG_DEC_NEED_DATA;
return TRUE;
}
@ -555,6 +558,9 @@ gst_vdp_mpeg_dec_parse_gop (GstVdpMpegDec * mpeg_dec, GstBuffer * buffer)
gst_util_uint64_scale (time, mpeg_dec->fps_n,
mpeg_dec->fps_d * GST_SECOND) + gop.frame;
if (mpeg_dec->state == GST_VDP_MPEG_DEC_NEED_GOP)
mpeg_dec->state = GST_VDP_MPEG_DEC_NEED_DATA;
return TRUE;
}
@ -601,6 +607,8 @@ gst_vdp_mpeg_dec_reset (GstVdpMpegDec * mpeg_dec)
g_object_unref (mpeg_dec->device);
mpeg_dec->device = NULL;
mpeg_dec->state = GST_VDP_MPEG_DEC_NEED_SEQUENCE;
gst_segment_init (&mpeg_dec->segment, GST_FORMAT_TIME);
mpeg_dec->seeking = FALSE;
@ -688,6 +696,12 @@ gst_vdp_mpeg_dec_chain (GstPad * pad, GstBuffer * buffer)
gst_buffer_unref (buf);
}
if (mpeg_dec->state == GST_VDP_MPEG_DEC_NEED_SEQUENCE ||
mpeg_dec->state == GST_VDP_MPEG_DEC_NEED_GOP) {
gst_adapter_clear (mpeg_dec->adapter);
goto done;
}
if (mpeg_dec->vdp_info.slice_count > 0)
ret = gst_vdp_mpeg_dec_decode (mpeg_dec, GST_BUFFER_TIMESTAMP (buffer),
GST_BUFFER_SIZE (buffer));
@ -843,8 +857,10 @@ normal_seek (GstVdpMpegDec * mpeg_dec, GstEvent * event)
/* do the seek */
res = gst_pad_push_event (mpeg_dec->sink, peer_event);
if (res)
if (res) {
mpeg_dec->state = GST_VDP_MPEG_DEC_NEED_GOP;
mpeg_dec->seeking = TRUE;
}
g_mutex_unlock (mpeg_dec->mutex);

9
sys/vdpau/gstvdpmpegdec.h
View file

@ -35,6 +35,12 @@ G_BEGIN_DECLS
#define GST_IS_VDP_MPEG_DEC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VDP_MPEG_DEC))
#define GST_IS_VDP_MPEG_DEC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VDP_MPEG_DEC))
typedef enum {
GST_VDP_MPEG_DEC_NEED_SEQUENCE,
GST_VDP_MPEG_DEC_NEED_GOP,
GST_VDP_MPEG_DEC_NEED_DATA
} GstVdpMpegDecState;
typedef struct _GstVdpMpegDec GstVdpMpegDec;
typedef struct _GstVdpMpegDecClass GstVdpMpegDecClass;
@ -56,6 +62,9 @@ struct _GstVdpMpegDec
gboolean interlaced;
gint version;
/* decoder state */
GstVdpMpegDecState state;
/* currently decoded frame info */
GstAdapter *adapter;
VdpPictureInfoMPEG1Or2 vdp_info;