static gboolean
gst_base_video_decoder_sink_activate (GstBaseVideoDecoder * decoder,
gboolean active)
{
GstBaseVideoDecoderClass *klass;
gboolean result = FALSE;
GST_DEBUG_OBJECT (decoder, "activate");
klass = GST_BASE_VIDEO_DECODER_GET_CLASS (decoder);
if (active) {
if (klass->start)
result = klass->start (decoder);
} else {
/* We must make sure streaming has finished before resetting things
* and calling the ::stop vfunc */
GST_PAD_STREAM_LOCK (GST_BASE_VIDEO_CODEC_SINK_PAD (decoder));
GST_PAD_STREAM_UNLOCK (GST_BASE_VIDEO_CODEC_SINK_PAD (decoder));
if (klass->stop)
result = klass->stop (decoder);
}
GST_DEBUG_OBJECT (decoder, "activate: %d", result);
return result;
}
static void
gst_base_video_decoder_init (GstBaseVideoDecoder * base_video_decoder,
GstBaseVideoDecoderClass * klass)
{
GstPad *pad;
GST_DEBUG ("gst_base_video_decoder_init");
pad = GST_BASE_VIDEO_CODEC_SINK_PAD (base_video_decoder);
gst_pad_set_activatepush_function (pad,
gst_base_video_decoder_sink_activate_push);
gst_pad_set_chain_function (pad, gst_base_video_decoder_chain);
gst_pad_set_event_function (pad, gst_base_video_decoder_sink_event);
gst_pad_set_setcaps_function (pad, gst_base_video_decoder_sink_setcaps);
gst_pad_set_query_function (pad, gst_base_video_decoder_sink_query);
pad = GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_decoder);
gst_pad_set_event_function (pad, gst_base_video_decoder_src_event);
gst_pad_set_query_type_function (pad, gst_base_video_decoder_get_query_types);
gst_pad_set_query_function (pad, gst_base_video_decoder_src_query);
base_video_decoder->input_adapter = gst_adapter_new ();
base_video_decoder->output_adapter = gst_adapter_new ();
gst_segment_init (&base_video_decoder->state.segment, GST_FORMAT_TIME);
gst_base_video_decoder_reset (base_video_decoder);
base_video_decoder->current_frame =
gst_base_video_decoder_new_frame (base_video_decoder);
base_video_decoder->sink_clipping = TRUE;
}
static void
gst_base_video_parse_init (GstBaseVideoParse * base_video_parse,
GstBaseVideoParseClass * klass)
{
GstPad *pad;
GST_DEBUG ("gst_base_video_parse_init");
pad = GST_BASE_VIDEO_CODEC_SINK_PAD (base_video_parse);
gst_pad_set_chain_function (pad, gst_base_video_parse_chain);
gst_pad_set_query_function (pad, gst_base_video_parse_sink_query);
gst_pad_set_event_function (pad, gst_base_video_parse_sink_event);
pad = GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_parse);
gst_pad_set_query_type_function (pad, gst_base_video_parse_get_query_types);
gst_pad_set_query_function (pad, gst_base_video_parse_src_query);
gst_pad_set_event_function (pad, gst_base_video_parse_src_event);
base_video_parse->input_adapter = gst_adapter_new ();
base_video_parse->output_adapter = gst_adapter_new ();
base_video_parse->reorder_depth = 1;
base_video_parse->current_frame =
gst_base_video_parse_new_frame (base_video_parse);
}
static void
gst_base_video_encoder_init (GstBaseVideoEncoder * base_video_encoder,
GstBaseVideoEncoderClass * klass)
{
GstPad *pad;
GST_DEBUG_OBJECT (base_video_encoder, "gst_base_video_encoder_init");
pad = GST_BASE_VIDEO_CODEC_SINK_PAD (base_video_encoder);
gst_pad_set_chain_function (pad,
GST_DEBUG_FUNCPTR (gst_base_video_encoder_chain));
gst_pad_set_event_function (pad,
GST_DEBUG_FUNCPTR (gst_base_video_encoder_sink_event));
gst_pad_set_setcaps_function (pad,
GST_DEBUG_FUNCPTR (gst_base_video_encoder_sink_setcaps));
gst_pad_set_getcaps_function (pad,
GST_DEBUG_FUNCPTR (gst_base_video_encoder_sink_getcaps));
pad = GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_encoder);
gst_pad_set_query_type_function (pad,
GST_DEBUG_FUNCPTR (gst_base_video_encoder_get_query_types));
gst_pad_set_query_function (pad,
GST_DEBUG_FUNCPTR (gst_base_video_encoder_src_query));
gst_pad_set_event_function (pad,
GST_DEBUG_FUNCPTR (gst_base_video_encoder_src_event));
base_video_encoder->a.at_eos = FALSE;
/* encoder is expected to do so */
base_video_encoder->sink_clipping = TRUE;
}
static gboolean
gst_base_video_encoder_src_query (GstPad * pad, GstQuery * query)
{
GstBaseVideoEncoder *enc;
gboolean res;
GstPad *peerpad;
enc = GST_BASE_VIDEO_ENCODER (gst_pad_get_parent (pad));
peerpad = gst_pad_get_peer (GST_BASE_VIDEO_CODEC_SINK_PAD (enc));
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_base_video_encoded_video_convert (&GST_BASE_VIDEO_CODEC
(enc)->state, 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;
}
case GST_QUERY_LATENCY:
{
gboolean live;
GstClockTime min_latency, max_latency;
res = gst_pad_query (peerpad, query);
if (res) {
gst_query_parse_latency (query, &live, &min_latency, &max_latency);
min_latency += enc->min_latency;
if (max_latency != GST_CLOCK_TIME_NONE) {
max_latency += enc->max_latency;
}
gst_query_set_latency (query, live, min_latency, max_latency);
}
}
break;
default:
res = gst_pad_query_default (pad, query);
}
gst_object_unref (peerpad);
gst_object_unref (enc);
return res;
error:
GST_DEBUG_OBJECT (enc, "query failed");
gst_object_unref (peerpad);
gst_object_unref (enc);
return res;
}
static gboolean
gst_base_video_encoder_src_event (GstPad * pad, GstEvent * event)
{
GstBaseVideoEncoder *base_video_encoder;
GstBaseVideoEncoderClass *base_video_encoder_class;
gboolean ret = FALSE;
base_video_encoder = GST_BASE_VIDEO_ENCODER (gst_pad_get_parent (pad));
base_video_encoder_class =
GST_BASE_VIDEO_ENCODER_GET_CLASS (base_video_encoder);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CUSTOM_UPSTREAM:
{
const GstStructure *s;
s = gst_event_get_structure (event);
if (gst_structure_has_name (s, "GstForceKeyUnit")) {
GST_OBJECT_LOCK (base_video_encoder);
base_video_encoder->force_keyframe = TRUE;
GST_OBJECT_UNLOCK (base_video_encoder);
gst_event_unref (event);
ret = TRUE;
} else {
ret =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SINK_PAD
(base_video_encoder), event);
}
break;
}
default:
ret =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SINK_PAD
(base_video_encoder), event);
break;
}
gst_object_unref (base_video_encoder);
return ret;
}
static void
gst_vp8_enc_init (GstVP8Enc * gst_vp8_enc, GstVP8EncClass * klass)
{
GST_DEBUG_OBJECT (gst_vp8_enc, "init");
gst_vp8_enc->bitrate = DEFAULT_BITRATE;
gst_vp8_enc->mode = DEFAULT_MODE;
gst_vp8_enc->quality = DEFAULT_QUALITY;
gst_vp8_enc->error_resilient = DEFAULT_ERROR_RESILIENT;
gst_vp8_enc->max_latency = DEFAULT_MAX_LATENCY;
gst_vp8_enc->max_keyframe_distance = DEFAULT_MAX_KEYFRAME_DISTANCE;
gst_vp8_enc->multipass_mode = DEFAULT_MULTIPASS_MODE;
gst_vp8_enc->multipass_cache_file = DEFAULT_MULTIPASS_CACHE_FILE;
gst_vp8_enc->auto_alt_ref_frames = DEFAULT_AUTO_ALT_REF_FRAMES;
/* FIXME: Add sink/src event vmethods */
gst_vp8_enc->base_sink_event_func =
GST_PAD_EVENTFUNC (GST_BASE_VIDEO_CODEC_SINK_PAD (gst_vp8_enc));
gst_pad_set_event_function (GST_BASE_VIDEO_CODEC_SINK_PAD (gst_vp8_enc),
gst_vp8_enc_sink_event);
}
static void
gst_base_video_encoder_init (GstBaseVideoEncoder * base_video_encoder,
GstBaseVideoEncoderClass * klass)
{
GstPad *pad;
GST_DEBUG ("gst_base_video_encoder_init");
pad = GST_BASE_VIDEO_CODEC_SINK_PAD (base_video_encoder);
gst_pad_set_chain_function (pad, gst_base_video_encoder_chain);
gst_pad_set_event_function (pad, gst_base_video_encoder_sink_event);
gst_pad_set_setcaps_function (pad, gst_base_video_encoder_sink_setcaps);
//gst_pad_set_query_function (pad, gst_base_video_encoder_sink_query);
pad = GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_encoder);
gst_pad_set_query_type_function (pad, gst_base_video_encoder_get_query_types);
gst_pad_set_query_function (pad, gst_base_video_encoder_src_query);
}
static gboolean
gst_base_video_decoder_src_event (GstPad * pad, GstEvent * event)
{
GstBaseVideoDecoder *base_video_decoder;
gboolean res = FALSE;
base_video_decoder = GST_BASE_VIDEO_DECODER (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEEK:
{
GstFormat format, tformat;
gdouble rate;
GstEvent *real_seek;
GstSeekFlags flags;
GstSeekType cur_type, stop_type;
gint64 cur, stop;
gint64 tcur, tstop;
gst_event_parse_seek (event, &rate, &format, &flags, &cur_type,
&cur, &stop_type, &stop);
gst_event_unref (event);
tformat = GST_FORMAT_TIME;
res =
gst_base_video_decoder_src_convert (pad, format, cur, &tformat,
&tcur);
if (!res)
goto convert_error;
res =
gst_base_video_decoder_src_convert (pad, format, stop, &tformat,
&tstop);
if (!res)
goto convert_error;
real_seek = gst_event_new_seek (rate, GST_FORMAT_TIME,
flags, cur_type, tcur, stop_type, tstop);
res =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SINK_PAD
(base_video_decoder), real_seek);
break;
}
case GST_EVENT_QOS:
{
gdouble proportion;
GstClockTimeDiff diff;
GstClockTime timestamp;
gst_event_parse_qos (event, &proportion, &diff, ×tamp);
GST_OBJECT_LOCK (base_video_decoder);
base_video_decoder->proportion = proportion;
base_video_decoder->earliest_time = timestamp + diff;
GST_OBJECT_UNLOCK (base_video_decoder);
GST_DEBUG_OBJECT (base_video_decoder,
"got QoS %" GST_TIME_FORMAT ", %" G_GINT64_FORMAT ", %g",
GST_TIME_ARGS (timestamp), diff, proportion);
res =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SINK_PAD
(base_video_decoder), event);
break;
}
default:
res =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SINK_PAD
(base_video_decoder), event);
break;
}
done:
gst_object_unref (base_video_decoder);
return res;
convert_error:
GST_DEBUG_OBJECT (base_video_decoder, "could not convert format");
goto done;
}
static gboolean
gst_base_video_parse_src_query (GstPad * pad, GstQuery * query)
{
GstBaseVideoParse *base_parse;
gboolean res = FALSE;
base_parse = GST_BASE_VIDEO_PARSE (gst_pad_get_parent (pad));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
{
GstFormat format;
gint64 time;
gint64 value;
gst_query_parse_position (query, &format, NULL);
time = gst_util_uint64_scale (base_parse->presentation_frame_number,
base_parse->state.fps_n, base_parse->state.fps_d);
time += base_parse->segment.time;
GST_DEBUG ("query position %" GST_TIME_FORMAT, GST_TIME_ARGS (time));
res = gst_base_video_encoded_video_convert (&base_parse->state,
GST_FORMAT_TIME, time, &format, &value);
if (!res)
goto error;
gst_query_set_position (query, format, value);
break;
}
case GST_QUERY_DURATION:
res =
gst_pad_query (GST_PAD_PEER (GST_BASE_VIDEO_CODEC_SINK_PAD
(base_parse)), query);
if (!res)
goto error;
break;
case GST_QUERY_CONVERT:
{
GstFormat src_fmt, dest_fmt;
gint64 src_val, dest_val;
GST_WARNING ("query convert");
gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
res = gst_base_video_encoded_video_convert (&base_parse->state,
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 (base_parse);
return res;
error:
GST_DEBUG_OBJECT (base_parse, "query failed");
goto done;
}
static GstCaps *
gst_base_video_encoder_sink_getcaps (GstPad * pad)
{
GstBaseVideoEncoder *base_video_encoder;
const GstCaps *templ_caps;
GstCaps *allowed;
GstCaps *fcaps, *filter_caps;
gint i, j;
base_video_encoder = GST_BASE_VIDEO_ENCODER (gst_pad_get_parent (pad));
/* FIXME: Allow subclass to override this? */
/* Allow downstream to specify width/height/framerate/PAR constraints
* and forward them upstream for video converters to handle
*/
templ_caps =
gst_pad_get_pad_template_caps (GST_BASE_VIDEO_CODEC_SINK_PAD
(base_video_encoder));
allowed =
gst_pad_get_allowed_caps (GST_BASE_VIDEO_CODEC_SRC_PAD
(base_video_encoder));
if (!allowed || gst_caps_is_empty (allowed) || gst_caps_is_any (allowed)) {
fcaps = gst_caps_copy (templ_caps);
goto done;
}
GST_LOG_OBJECT (base_video_encoder, "template caps %" GST_PTR_FORMAT,
templ_caps);
GST_LOG_OBJECT (base_video_encoder, "allowed caps %" GST_PTR_FORMAT, allowed);
filter_caps = gst_caps_new_empty ();
for (i = 0; i < gst_caps_get_size (templ_caps); i++) {
GQuark q_name =
gst_structure_get_name_id (gst_caps_get_structure (templ_caps, i));
for (j = 0; j < gst_caps_get_size (allowed); j++) {
const GstStructure *allowed_s = gst_caps_get_structure (allowed, j);
const GValue *val;
GstStructure *s;
s = gst_structure_id_empty_new (q_name);
if ((val = gst_structure_get_value (allowed_s, "width")))
gst_structure_set_value (s, "width", val);
if ((val = gst_structure_get_value (allowed_s, "height")))
gst_structure_set_value (s, "height", val);
if ((val = gst_structure_get_value (allowed_s, "framerate")))
gst_structure_set_value (s, "framerate", val);
if ((val = gst_structure_get_value (allowed_s, "pixel-aspect-ratio")))
gst_structure_set_value (s, "pixel-aspect-ratio", val);
gst_caps_merge_structure (filter_caps, s);
}
}
fcaps = gst_caps_intersect (filter_caps, templ_caps);
gst_caps_unref (filter_caps);
done:
gst_caps_replace (&allowed, NULL);
GST_LOG_OBJECT (base_video_encoder, "Returning caps %" GST_PTR_FORMAT, fcaps);
return fcaps;
}
