Merge branch 'master' of git://anongit.freedesktop.org/gstreamer/gst-plugins-bad into fdo

1 files changed, 722 insertions, 0 deletions

diff --git a/ext/schroedinger/gstschrodec.c b/ext/schroedinger/gstschrodec.c
new file mode 100644
index 00000000..1dcca7ac
--- /dev/null
+++ b/ext/schroedinger/gstschrodec.c
@@ -0,0 +1,722 @@
+/* Schrodinger
+ * Copyright (C) 2006 David Schleef <ds@schleef.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gst/gst.h>
+#include <gst/base/gstadapter.h>
+#include <gst/video/video.h>
+#include <gst/video/gstbasevideodecoder.h>
+#include <string.h>
+#include <schroedinger/schro.h>
+#include <math.h>
+#include "gstschroutils.h"
+
+#include <schroedinger/schroparse.h>
+
+GST_DEBUG_CATEGORY_EXTERN (schro_debug);
+#define GST_CAT_DEFAULT schro_debug
+
+#define GST_TYPE_SCHRO_DEC \
+  (gst_schro_dec_get_type())
+#define GST_SCHRO_DEC(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SCHRO_DEC,GstSchroDec))
+#define GST_SCHRO_DEC_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SCHRO_DEC,GstSchroDecClass))
+#define GST_IS_SCHRO_DEC(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SCHRO_DEC))
+#define GST_IS_SCHRO_DEC_CLASS(obj) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SCHRO_DEC))
+
+typedef struct _GstSchroDec GstSchroDec;
+typedef struct _GstSchroDecClass GstSchroDecClass;
+
+struct _GstSchroDec
+{
+  GstBaseVideoDecoder base_video_decoder;
+
+  SchroDecoder *decoder;
+
+  GstBuffer *seq_header_buffer;
+};
+
+struct _GstSchroDecClass
+{
+  GstBaseVideoDecoder base_video_decoder_class;
+};
+
+
+/* GstSchroDec signals and args */
+enum
+{
+  LAST_SIGNAL
+};
+
+enum
+{
+  ARG_0
+};
+
+static void gst_schro_dec_finalize (GObject * object);
+static void gst_schro_dec_set_property (GObject * object, guint prop_id,
+    const GValue * value, GParamSpec * pspec);
+static void gst_schro_dec_get_property (GObject * object, guint prop_id,
+    GValue * value, GParamSpec * pspec);
+
+static gboolean gst_schro_dec_sink_query (GstPad * pad, GstQuery * query);
+
+static gboolean gst_schro_dec_start (GstBaseVideoDecoder * dec);
+static gboolean gst_schro_dec_stop (GstBaseVideoDecoder * dec);
+static gboolean gst_schro_dec_reset (GstBaseVideoDecoder * dec);
+static GstFlowReturn gst_schro_dec_parse_data (GstBaseVideoDecoder *
+    base_video_decoder, gboolean at_eos);
+static int gst_schro_dec_scan_for_sync (GstBaseVideoDecoder *
+    base_video_decoder, gboolean at_eos, int offset, int n);
+static GstFlowReturn gst_schro_dec_handle_frame (GstBaseVideoDecoder * decoder,
+    GstVideoFrame * frame);
+static GstFlowReturn gst_schro_dec_finish (GstBaseVideoDecoder *
+    base_video_decoder, GstVideoFrame * frame);
+static void gst_schrodec_send_tags (GstSchroDec * schro_dec);
+
+static GstStaticPadTemplate gst_schro_dec_sink_template =
+GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS ("video/x-dirac")
+    );
+
+static GstStaticPadTemplate gst_schro_dec_src_template =
+GST_STATIC_PAD_TEMPLATE ("src",
+    GST_PAD_SRC,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{ I420, YUY2, AYUV }"))
+    );
+
+GST_BOILERPLATE (GstSchroDec, gst_schro_dec, GstBaseVideoDecoder,
+    GST_TYPE_BASE_VIDEO_DECODER);
+
+static void
+gst_schro_dec_base_init (gpointer g_class)
+{
+  static GstElementDetails compress_details =
+      GST_ELEMENT_DETAILS ("Dirac Decoder",
+      "Codec/Decoder/Video",
+      "Decode Dirac streams",
+      "David Schleef <ds@schleef.org>");
+  GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
+
+  gst_element_class_add_pad_template (element_class,
+      gst_static_pad_template_get (&gst_schro_dec_src_template));
+  gst_element_class_add_pad_template (element_class,
+      gst_static_pad_template_get (&gst_schro_dec_sink_template));
+
+  gst_element_class_set_details (element_class, &compress_details);
+}
+
+static void
+gst_schro_dec_class_init (GstSchroDecClass * klass)
+{
+  GObjectClass *gobject_class;
+  GstBaseVideoDecoderClass *base_video_decoder_class;
+  GstElementClass *element_class;
+
+  gobject_class = G_OBJECT_CLASS (klass);
+  element_class = GST_ELEMENT_CLASS (klass);
+  base_video_decoder_class = GST_BASE_VIDEO_DECODER_CLASS (klass);
+
+  gobject_class->set_property = gst_schro_dec_set_property;
+  gobject_class->get_property = gst_schro_dec_get_property;
+  gobject_class->finalize = gst_schro_dec_finalize;
+
+  base_video_decoder_class->start = GST_DEBUG_FUNCPTR (gst_schro_dec_start);
+  base_video_decoder_class->stop = GST_DEBUG_FUNCPTR (gst_schro_dec_stop);
+  base_video_decoder_class->reset = GST_DEBUG_FUNCPTR (gst_schro_dec_reset);
+  base_video_decoder_class->parse_data =
+      GST_DEBUG_FUNCPTR (gst_schro_dec_parse_data);
+  base_video_decoder_class->scan_for_sync =
+      GST_DEBUG_FUNCPTR (gst_schro_dec_scan_for_sync);
+  base_video_decoder_class->handle_frame =
+      GST_DEBUG_FUNCPTR (gst_schro_dec_handle_frame);
+  base_video_decoder_class->finish = GST_DEBUG_FUNCPTR (gst_schro_dec_finish);
+}
+
+static void
+gst_schro_dec_init (GstSchroDec * schro_dec, GstSchroDecClass * klass)
+{
+  GST_DEBUG ("gst_schro_dec_init");
+
+  gst_pad_set_query_function (GST_BASE_VIDEO_CODEC_SINK_PAD (schro_dec),
+      gst_schro_dec_sink_query);
+
+  schro_dec->decoder = schro_decoder_new ();
+}
+
+#define OGG_DIRAC_GRANULE_SHIFT 22
+#define OGG_DIRAC_GRANULE_LOW_MASK ((1ULL<<OGG_DIRAC_GRANULE_SHIFT)-1)
+
+static gint64
+granulepos_to_frame (gint64 granulepos)
+{
+  guint64 pt;
+  int dist_h;
+  int dist_l;
+  int dist;
+  int delay;
+  guint64 dt;
+
+  if (granulepos == -1)
+    return -1;
+
+  pt = ((granulepos >> 22) + (granulepos & OGG_DIRAC_GRANULE_LOW_MASK)) >> 9;
+  dist_h = (granulepos >> 22) & 0xff;
+  dist_l = granulepos & 0xff;
+  dist = (dist_h << 8) | dist_l;
+  delay = (granulepos >> 9) & 0x1fff;
+  dt = pt - delay;
+
+  return pt >> 1;
+}
+
+static gboolean
+gst_schro_dec_sink_convert (GstPad * pad,
+    GstFormat src_format, gint64 src_value,
+    GstFormat * dest_format, gint64 * dest_value)
+{
+  gboolean res = TRUE;
+  GstSchroDec *dec;
+  GstVideoState *state;
+
+  if (src_format == *dest_format) {
+    *dest_value = src_value;
+    return TRUE;
+  }
+
+  dec = GST_SCHRO_DEC (gst_pad_get_parent (pad));
+
+  /* FIXME: check if we are in a decoding state */
+
+  state = gst_base_video_decoder_get_state (GST_BASE_VIDEO_DECODER (dec));
+
+  res = FALSE;
+  if (src_format == GST_FORMAT_DEFAULT && *dest_format == GST_FORMAT_TIME) {
+    if (state->fps_d != 0) {
+      *dest_value = gst_util_uint64_scale (granulepos_to_frame (src_value),
+          state->fps_d * GST_SECOND, state->fps_n);
+      res = TRUE;
+    } else {
+      res = FALSE;
+    }
+  }
+
+  gst_object_unref (dec);
+
+  return res;
+}
+
+static gboolean
+gst_schro_dec_sink_query (GstPad * pad, GstQuery * query)
+{
+  GstSchroDec *dec;
+  gboolean res = FALSE;
+
+  dec = GST_SCHRO_DEC (gst_pad_get_parent (pad));
+
+  switch (GST_QUERY_TYPE (query)) {
+    case GST_QUERY_CONVERT:
+    {
+      GstFormat src_fmt, dest_fmt;
+      gint64 src_val, dest_val;
+
+      gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
+      res = gst_schro_dec_sink_convert (pad, src_fmt, src_val, &dest_fmt,
+          &dest_val);
+      if (!res)
+        goto error;
+      gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
+      break;
+    }
+    default:
+      res = gst_pad_query_default (pad, query);
+      break;
+  }
+done:
+  gst_object_unref (dec);
+
+  return res;
+error:
+  GST_DEBUG_OBJECT (dec, "query failed");
+  goto done;
+}
+
+static gboolean
+gst_schro_dec_start (GstBaseVideoDecoder * dec)
+{
+  if (dec->codec_data) {
+    GST_DEBUG_OBJECT (dec, "codec data!");
+  }
+
+  return TRUE;
+}
+
+static gboolean
+gst_schro_dec_stop (GstBaseVideoDecoder * dec)
+{
+
+  return TRUE;
+}
+
+static gboolean
+gst_schro_dec_reset (GstBaseVideoDecoder * dec)
+{
+  GstSchroDec *schro_dec;
+
+  schro_dec = GST_SCHRO_DEC (dec);
+
+  GST_DEBUG ("reset");
+
+  if (schro_dec->decoder) {
+    schro_decoder_reset (schro_dec->decoder);
+  }
+
+  return TRUE;
+}
+
+static void
+gst_schro_dec_finalize (GObject * object)
+{
+  GstSchroDec *schro_dec;
+
+  g_return_if_fail (GST_IS_SCHRO_DEC (object));
+  schro_dec = GST_SCHRO_DEC (object);
+
+  if (schro_dec->decoder) {
+    schro_decoder_free (schro_dec->decoder);
+    schro_dec->decoder = NULL;
+  }
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gst_schro_dec_set_property (GObject * object, guint prop_id,
+    const GValue * value, GParamSpec * pspec)
+{
+  GstSchroDec *src;
+
+  g_return_if_fail (GST_IS_SCHRO_DEC (object));
+  src = GST_SCHRO_DEC (object);
+
+  GST_DEBUG ("gst_schro_dec_set_property");
+  switch (prop_id) {
+    default:
+      break;
+  }
+}
+
+static void
+gst_schro_dec_get_property (GObject * object, guint prop_id, GValue * value,
+    GParamSpec * pspec)
+{
+  GstSchroDec *src;
+
+  g_return_if_fail (GST_IS_SCHRO_DEC (object));
+  src = GST_SCHRO_DEC (object);
+
+  switch (prop_id) {
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static void
+parse_sequence_header (GstSchroDec * schro_dec, guint8 * data, int size)
+{
+  SchroVideoFormat video_format;
+  int ret;
+  GstVideoState *state;
+
+  GST_DEBUG_OBJECT (schro_dec, "parse_sequence_header size=%d", size);
+
+  state = gst_base_video_decoder_get_state (GST_BASE_VIDEO_DECODER (schro_dec));
+
+  schro_dec->seq_header_buffer = gst_buffer_new_and_alloc (size);
+  memcpy (GST_BUFFER_DATA (schro_dec->seq_header_buffer), data, size);
+
+  ret = schro_parse_decode_sequence_header (data + 13, size - 13,
+      &video_format);
+  if (ret) {
+    if (video_format.chroma_format == SCHRO_CHROMA_444) {
+      state->format = GST_VIDEO_FORMAT_AYUV;
+    } else if (video_format.chroma_format == SCHRO_CHROMA_422) {
+      state->format = GST_VIDEO_FORMAT_YUY2;
+    } else if (video_format.chroma_format == SCHRO_CHROMA_420) {
+      state->format = GST_VIDEO_FORMAT_I420;
+    }
+    state->fps_n = video_format.frame_rate_numerator;
+    state->fps_d = video_format.frame_rate_denominator;
+    GST_DEBUG_OBJECT (schro_dec, "Frame rate is %d/%d", state->fps_n,
+        state->fps_d);
+
+    state->width = video_format.width;
+    state->height = video_format.height;
+    GST_DEBUG ("Frame dimensions are %d x %d\n", state->width, state->height);
+
+    state->clean_width = video_format.clean_width;
+    state->clean_height = video_format.clean_height;
+    state->clean_offset_left = video_format.left_offset;
+    state->clean_offset_top = video_format.top_offset;
+
+    state->par_n = video_format.aspect_ratio_numerator;
+    state->par_d = video_format.aspect_ratio_denominator;
+    GST_DEBUG ("Pixel aspect ratio is %d/%d", state->par_n, state->par_d);
+
+    /* FIXME state points to what is actually in the decoder */
+    //gst_base_video_decoder_set_state (GST_BASE_VIDEO_DECODER (schro_dec),
+    //    state);
+  } else {
+    GST_WARNING ("Failed to get frame rate from sequence header");
+  }
+
+  gst_schrodec_send_tags (schro_dec);
+}
+
+
+static GstFlowReturn
+gst_schro_dec_parse_data (GstBaseVideoDecoder * base_video_decoder,
+    gboolean at_eos)
+{
+  GstSchroDec *schro_decoder;
+  unsigned char header[SCHRO_PARSE_HEADER_SIZE];
+  int next;
+  int prev;
+  int parse_code;
+
+  GST_DEBUG_OBJECT (base_video_decoder, "parse_data");
+
+  schro_decoder = GST_SCHRO_DEC (base_video_decoder);
+
+  if (gst_adapter_available (base_video_decoder->input_adapter) <
+      SCHRO_PARSE_HEADER_SIZE) {
+    return GST_BASE_VIDEO_DECODER_FLOW_NEED_DATA;
+  }
+
+  GST_DEBUG ("available %d",
+      gst_adapter_available (base_video_decoder->input_adapter));
+
+  gst_adapter_copy (base_video_decoder->input_adapter, header, 0,
+      SCHRO_PARSE_HEADER_SIZE);
+
+  parse_code = header[4];
+  next = GST_READ_UINT32_BE (header + 5);
+  prev = GST_READ_UINT32_BE (header + 9);
+
+  GST_DEBUG ("%08x %02x %08x %08x",
+      GST_READ_UINT32_BE (header), parse_code, next, prev);
+
+  if (memcmp (header, "BBCD", 4) != 0 ||
+      (next & 0xf0000000) || (prev & 0xf0000000)) {
+    gst_base_video_decoder_lost_sync (base_video_decoder);
+    return GST_BASE_VIDEO_DECODER_FLOW_NEED_DATA;
+  }
+
+  if (SCHRO_PARSE_CODE_IS_END_OF_SEQUENCE (parse_code)) {
+    GstVideoFrame *frame;
+
+    if (next != 0 && next != SCHRO_PARSE_HEADER_SIZE) {
+      GST_WARNING ("next is not 0 or 13 in EOS packet (%d)", next);
+    }
+
+    gst_base_video_decoder_add_to_frame (base_video_decoder,
+        SCHRO_PARSE_HEADER_SIZE);
+
+    frame = base_video_decoder->current_frame;
+    frame->is_eos = TRUE;
+
+    SCHRO_DEBUG ("eos");
+
+    return gst_base_video_decoder_have_frame (base_video_decoder);
+  }
+
+  if (gst_adapter_available (base_video_decoder->input_adapter) < next) {
+    return GST_BASE_VIDEO_DECODER_FLOW_NEED_DATA;
+  }
+
+  if (SCHRO_PARSE_CODE_IS_SEQ_HEADER (parse_code)) {
+    guint8 *data;
+
+    data = g_malloc (next);
+
+    gst_adapter_copy (base_video_decoder->input_adapter, data, 0, next);
+    parse_sequence_header (schro_decoder, data, next);
+
+    gst_base_video_decoder_set_sync_point (base_video_decoder);
+
+    if (GST_CLOCK_TIME_IS_VALID (base_video_decoder->last_sink_timestamp)) {
+      base_video_decoder->current_frame->presentation_timestamp =
+          base_video_decoder->last_sink_timestamp;
+      GST_DEBUG ("got timestamp %lld", base_video_decoder->last_sink_timestamp);
+    } else if (base_video_decoder->last_sink_offset_end != -1) {
+      GstVideoState *state;
+
+#if 0
+      /* FIXME perhaps should use this to determine if the granulepos
+       * is valid */
+      {
+        guint64 pt;
+        int dist_h;
+        int dist_l;
+        int dist;
+        int delay;
+        guint64 dt;
+        gint64 granulepos = base_video_decoder->last_sink_offset_end;
+
+        pt = ((granulepos >> 22) +
+            (granulepos & OGG_DIRAC_GRANULE_LOW_MASK)) >> 9;
+        dist_h = (granulepos >> 22) & 0xff;
+        dist_l = granulepos & 0xff;
+        dist = (dist_h << 8) | dist_l;
+        delay = (granulepos >> 9) & 0x1fff;
+        dt = pt - delay;
+        GST_DEBUG ("gp pt %lld dist %d delay %d dt %lld", pt, dist, delay, dt);
+      }
+#endif
+      state =
+          gst_base_video_decoder_get_state (GST_BASE_VIDEO_DECODER
+          (schro_decoder));
+      base_video_decoder->current_frame->presentation_timestamp =
+          gst_util_uint64_scale (granulepos_to_frame
+          (base_video_decoder->last_sink_offset_end), state->fps_d * GST_SECOND,
+          state->fps_n);
+    } else {
+      base_video_decoder->current_frame->presentation_timestamp = -1;
+    }
+
+    g_free (data);
+  }
+
+  if (schro_decoder->seq_header_buffer == NULL) {
+    gst_adapter_flush (base_video_decoder->input_adapter, next);
+    return GST_FLOW_OK;
+  }
+
+  if (SCHRO_PARSE_CODE_IS_PICTURE (parse_code)) {
+    GstVideoFrame *frame;
+    guint8 tmp[4];
+
+    frame = base_video_decoder->current_frame;
+
+    gst_adapter_copy (base_video_decoder->input_adapter, tmp,
+        SCHRO_PARSE_HEADER_SIZE, 4);
+
+    frame->presentation_frame_number = GST_READ_UINT32_BE (tmp);
+
+    gst_base_video_decoder_add_to_frame (base_video_decoder, next);
+
+    return gst_base_video_decoder_have_frame (base_video_decoder);
+  } else {
+    gst_base_video_decoder_add_to_frame (base_video_decoder, next);
+  }
+
+  return GST_FLOW_OK;
+}
+
+static int
+gst_schro_dec_scan_for_sync (GstBaseVideoDecoder * base_video_decoder,
+    gboolean at_eos, int offset, int n)
+{
+  GstAdapter *adapter = base_video_decoder->input_adapter;
+  int n_available;
+
+  n_available = gst_adapter_available (adapter) - offset;
+
+  if (n_available < 4) {
+    if (at_eos) {
+      return n_available;
+    } else {
+      return 0;
+    }
+  }
+
+  n_available -= 3;
+
+  return gst_adapter_masked_scan_uint32 (adapter, 0xffffffff, 0x42424344,
+      offset, MIN (n, n_available - 3));
+}
+
+
+static void
+gst_schrodec_send_tags (GstSchroDec * schro_dec)
+{
+  GstTagList *list;
+
+  list = gst_tag_list_new ();
+  gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
+      GST_TAG_VIDEO_CODEC, "Dirac", NULL);
+
+  gst_element_found_tags_for_pad (GST_ELEMENT_CAST (schro_dec),
+      GST_BASE_VIDEO_CODEC_SRC_PAD (schro_dec), list);
+}
+
+static GstFlowReturn
+gst_schro_dec_process (GstSchroDec * schro_dec, gboolean eos)
+{
+  gboolean go;
+  GstFlowReturn ret;
+
+  ret = GST_FLOW_OK;
+  go = TRUE;
+  while (go) {
+    int it;
+
+    it = schro_decoder_autoparse_wait (schro_dec->decoder);
+
+    switch (it) {
+      case SCHRO_DECODER_FIRST_ACCESS_UNIT:
+        break;
+      case SCHRO_DECODER_NEED_BITS:
+        GST_DEBUG ("need bits");
+        go = 0;
+        break;
+      case SCHRO_DECODER_NEED_FRAME:
+      {
+        GstBuffer *outbuf;
+        GstVideoState *state;
+        SchroFrame *schro_frame;
+        GstFlowReturn flow_ret;
+        int size;
+
+        GST_DEBUG ("need frame");
+
+        state =
+            gst_base_video_decoder_get_state (GST_BASE_VIDEO_DECODER
+            (schro_dec));
+        size =
+            gst_video_format_get_size (state->format, state->width,
+            state->height);
+        flow_ret =
+            gst_pad_alloc_buffer_and_set_caps (GST_BASE_VIDEO_CODEC_SRC_PAD
+            (schro_dec), GST_BUFFER_OFFSET_NONE, size,
+            GST_PAD_CAPS (GST_BASE_VIDEO_CODEC_SRC_PAD (schro_dec)), &outbuf);
+        if (flow_ret != GST_FLOW_OK) {
+          go = FALSE;
+          ret = flow_ret;
+          break;
+        }
+        schro_frame = gst_schro_buffer_wrap (outbuf,
+            state->format, state->width, state->height);
+        schro_decoder_add_output_picture (schro_dec->decoder, schro_frame);
+        break;
+      }
+      case SCHRO_DECODER_OK:
+      {
+        SchroFrame *schro_frame;
+        SchroTag *tag;
+        GstVideoFrame *frame;
+
+        GST_DEBUG ("got frame");
+
+        tag = schro_decoder_get_picture_tag (schro_dec->decoder);
+        schro_frame = schro_decoder_pull (schro_dec->decoder);
+        frame = tag->value;
+
+        if (schro_frame) {
+          if (schro_frame->priv) {
+            GstFlowReturn flow_ret;
+
+            frame->src_buffer = gst_buffer_ref (GST_BUFFER (schro_frame->priv));
+
+            flow_ret =
+                gst_base_video_decoder_finish_frame (GST_BASE_VIDEO_DECODER
+                (schro_dec), frame);
+            if (flow_ret != GST_FLOW_OK) {
+              GST_DEBUG ("finish frame returned %d", flow_ret);
+              return flow_ret;
+            }
+          } else {
+            GST_DEBUG ("skipped frame");
+          }
+
+          schro_frame_unref (schro_frame);
+        }
+        if (!eos) {
+          go = FALSE;
+        }
+      }
+
+        break;
+      case SCHRO_DECODER_EOS:
+        GST_DEBUG ("eos");
+        go = FALSE;
+        break;
+      case SCHRO_DECODER_ERROR:
+        go = FALSE;
+        GST_DEBUG ("codec error");
+        ret = GST_FLOW_ERROR;
+        break;
+    }
+  }
+  return ret;
+}
+
+GstFlowReturn
+gst_schro_dec_handle_frame (GstBaseVideoDecoder * base_video_decoder,
+    GstVideoFrame * frame)
+{
+  GstSchroDec *schro_dec;
+  int schro_ret;
+  SchroBuffer *input_buffer;
+  GstVideoState *state;
+
+  schro_dec = GST_SCHRO_DEC (base_video_decoder);
+
+  GST_DEBUG ("handle frame");
+
+  state = gst_base_video_decoder_get_state (base_video_decoder);
+
+  gst_base_video_decoder_set_src_caps (base_video_decoder);
+
+  input_buffer = gst_schro_wrap_gst_buffer (frame->sink_buffer);
+  frame->sink_buffer = NULL;
+
+  input_buffer->tag = schro_tag_new (frame, NULL);
+
+  schro_ret = schro_decoder_autoparse_push (schro_dec->decoder, input_buffer);
+
+  return gst_schro_dec_process (schro_dec, FALSE);
+}
+
+GstFlowReturn
+gst_schro_dec_finish (GstBaseVideoDecoder * base_video_decoder,
+    GstVideoFrame * frame)
+{
+  GstSchroDec *schro_dec;
+
+  schro_dec = GST_SCHRO_DEC (base_video_decoder);
+
+  GST_DEBUG ("finish");
+
+  gst_base_video_decoder_set_src_caps (base_video_decoder);
+
+  schro_decoder_autoparse_push_end_of_sequence (schro_dec->decoder);
+
+  return gst_schro_dec_process (schro_dec, TRUE);
+}