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omxvideoenc: Add vfunc for handling the output frames

Browse source 
This can be used by subclasses to override the buffer flags
or to handle some frames differently than the default behaviour.
This commit is contained in:
Sebastian Dröge 2011-11-15 08:28:32 -08:00
parent 0f07403ff2
commit 22ba4e1b9e
2 changed files with 95 additions and 76 deletions
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170
omx/gstomxvideoenc.c
View file

@ -89,6 +89,9 @@ static gboolean gst_omx_video_enc_finish (GstBaseVideoEncoder * encoder);
static GstFlowReturn gst_omx_video_enc_drain (GstOMXVideoEnc * self);
static GstFlowReturn gst_omx_video_enc_handle_output_frame (GstOMXVideoEnc *
self, GstOMXPort * port, GstOMXBuffer * buf, GstVideoFrame * frame);
enum
{
PROP_0,
@ -314,6 +317,9 @@ gst_omx_video_enc_class_init (GstOMXVideoEncClass * klass)
klass->default_sink_template_caps = "video/x-raw-yuv, "
"width = " GST_VIDEO_SIZE_RANGE ", "
"height = " GST_VIDEO_SIZE_RANGE ", " "framerate = " GST_VIDEO_FPS_RANGE;
klass->handle_output_frame =
GST_DEBUG_FUNCPTR (gst_omx_video_enc_handle_output_frame);
}
static void
@ -698,6 +704,91 @@ _find_nearest_frame (GstOMXVideoEnc * self, GstOMXBuffer * buf)
return best;
}
static GstFlowReturn
gst_omx_video_enc_handle_output_frame (GstOMXVideoEnc * self, GstOMXPort * port,
GstOMXBuffer * buf, GstVideoFrame * frame)
{
GstOMXVideoEncClass *klass = GST_OMX_VIDEO_ENC_GET_CLASS (self);
GstFlowReturn flow_ret = GST_FLOW_OK;
if ((buf->omx_buf->nFlags & OMX_BUFFERFLAG_CODECCONFIG)
&& buf->omx_buf->nFilledLen > 0) {
GstCaps *caps;
GstBuffer *codec_data;
caps = gst_caps_copy (GST_PAD_CAPS (GST_BASE_VIDEO_CODEC_SRC_PAD (self)));
codec_data = gst_buffer_new_and_alloc (buf->omx_buf->nFilledLen);
memcpy (GST_BUFFER_DATA (codec_data),
buf->omx_buf->pBuffer + buf->omx_buf->nOffset,
buf->omx_buf->nFilledLen);
gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, codec_data, NULL);
if (!gst_pad_set_caps (GST_BASE_VIDEO_CODEC_SRC_PAD (self), caps)) {
gst_caps_unref (caps);
return GST_FLOW_NOT_NEGOTIATED;
}
gst_caps_unref (caps);
flow_ret = GST_FLOW_OK;
} else if (buf->omx_buf->nFilledLen > 0) {
GstBuffer *outbuf;
if (buf->omx_buf->nFilledLen > 0) {
outbuf = gst_buffer_new_and_alloc (buf->omx_buf->nFilledLen);
memcpy (GST_BUFFER_DATA (outbuf),
buf->omx_buf->pBuffer + buf->omx_buf->nOffset,
buf->omx_buf->nFilledLen);
} else {
outbuf = gst_buffer_new ();
}
gst_buffer_set_caps (outbuf,
GST_PAD_CAPS (GST_BASE_VIDEO_CODEC_SRC_PAD (self)));
GST_BUFFER_TIMESTAMP (outbuf) =
gst_util_uint64_scale (buf->omx_buf->nTimeStamp, GST_SECOND,
OMX_TICKS_PER_SECOND);
if (buf->omx_buf->nTickCount != 0)
GST_BUFFER_DURATION (outbuf) =
gst_util_uint64_scale (buf->omx_buf->nTickCount, GST_SECOND,
OMX_TICKS_PER_SECOND);
if ((klass->hacks & GST_OMX_HACK_SYNCFRAME_FLAG_NOT_USED)
|| (buf->omx_buf->nFlags & OMX_BUFFERFLAG_SYNCFRAME)) {
if (frame)
frame->is_sync_point = TRUE;
else
GST_BUFFER_FLAG_UNSET (outbuf, GST_BUFFER_FLAG_DELTA_UNIT);
} else {
if (frame)
frame->is_sync_point = FALSE;
else
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DELTA_UNIT);
}
if (frame) {
frame->src_buffer = outbuf;
flow_ret =
gst_base_video_encoder_finish_frame (GST_BASE_VIDEO_ENCODER (self),
frame);
} else {
GST_ERROR_OBJECT (self, "No corresponding frame found");
flow_ret = gst_pad_push (GST_BASE_VIDEO_CODEC_SRC_PAD (self), outbuf);
}
} else if (frame != NULL) {
flow_ret =
gst_base_video_encoder_finish_frame (GST_BASE_VIDEO_ENCODER (self),
frame);
}
if (flow_ret == GST_FLOW_OK && (buf->omx_buf->nFlags & OMX_BUFFERFLAG_EOS)) {
GST_DEBUG_OBJECT (self, "Component signalled EOS");
flow_ret = GST_FLOW_UNEXPECTED;
}
return flow_ret;
}
static void
gst_omx_video_enc_loop (GstOMXVideoEnc * self)
{
@ -772,89 +863,16 @@ gst_omx_video_enc_loop (GstOMXVideoEnc * self)
GST_BASE_VIDEO_CODEC_STREAM_LOCK (self);
frame = _find_nearest_frame (self, buf);
if ((buf->omx_buf->nFlags & OMX_BUFFERFLAG_CODECCONFIG)
&& buf->omx_buf->nFilledLen > 0) {
GstCaps *caps;
GstBuffer *codec_data;
caps = gst_caps_copy (GST_PAD_CAPS (GST_BASE_VIDEO_CODEC_SRC_PAD (self)));
codec_data = gst_buffer_new_and_alloc (buf->omx_buf->nFilledLen);
memcpy (GST_BUFFER_DATA (codec_data),
buf->omx_buf->pBuffer + buf->omx_buf->nOffset,
buf->omx_buf->nFilledLen);
g_assert (klass->handle_output_frame);
flow_ret = klass->handle_output_frame (self, self->out_port, buf, frame);
gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, codec_data, NULL);
if (!gst_pad_set_caps (GST_BASE_VIDEO_CODEC_SRC_PAD (self), caps)) {
gst_caps_unref (caps);
if (buf)
gst_omx_port_release_buffer (self->out_port, buf);
GST_BASE_VIDEO_CODEC_STREAM_UNLOCK (self);
goto caps_failed;
}
gst_caps_unref (caps);
flow_ret = GST_FLOW_OK;
} else if (buf->omx_buf->nFilledLen > 0) {
GstBuffer *outbuf;
if (buf->omx_buf->nFilledLen > 0) {
outbuf = gst_buffer_new_and_alloc (buf->omx_buf->nFilledLen);
memcpy (GST_BUFFER_DATA (outbuf),
buf->omx_buf->pBuffer + buf->omx_buf->nOffset,
buf->omx_buf->nFilledLen);
} else {
outbuf = gst_buffer_new ();
}
gst_buffer_set_caps (outbuf,
GST_PAD_CAPS (GST_BASE_VIDEO_CODEC_SRC_PAD (self)));
GST_BUFFER_TIMESTAMP (outbuf) =
gst_util_uint64_scale (buf->omx_buf->nTimeStamp, GST_SECOND,
OMX_TICKS_PER_SECOND);
if (buf->omx_buf->nTickCount != 0)
GST_BUFFER_DURATION (outbuf) =
gst_util_uint64_scale (buf->omx_buf->nTickCount, GST_SECOND,
OMX_TICKS_PER_SECOND);
if ((klass->hacks & GST_OMX_HACK_SYNCFRAME_FLAG_NOT_USED)
|| (buf->omx_buf->nFlags & OMX_BUFFERFLAG_SYNCFRAME)) {
if (frame)
frame->is_sync_point = TRUE;
else
GST_BUFFER_FLAG_UNSET (outbuf, GST_BUFFER_FLAG_DELTA_UNIT);
} else {
if (frame)
frame->is_sync_point = FALSE;
else
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DELTA_UNIT);
}
if (frame) {
frame->src_buffer = outbuf;
flow_ret =
gst_base_video_encoder_finish_frame (GST_BASE_VIDEO_ENCODER (self),
frame);
} else {
GST_ERROR_OBJECT (self, "No corresponding frame found");
flow_ret = gst_pad_push (GST_BASE_VIDEO_CODEC_SRC_PAD (self), outbuf);
}
} else if (frame != NULL) {
flow_ret =
gst_base_video_encoder_finish_frame (GST_BASE_VIDEO_ENCODER (self),
frame);
}
if ((flow_ret == GST_FLOW_OK && (buf->omx_buf->nFlags & OMX_BUFFERFLAG_EOS))
|| flow_ret == GST_FLOW_UNEXPECTED) {
if (flow_ret == GST_FLOW_UNEXPECTED) {
g_mutex_lock (self->drain_lock);
if (self->draining) {
GST_DEBUG_OBJECT (self, "Drained");
self->draining = FALSE;
g_cond_broadcast (self->drain_cond);
} else if (flow_ret == GST_FLOW_OK) {
GST_DEBUG_OBJECT (self, "Component signalled EOS");
flow_ret = GST_FLOW_UNEXPECTED;
}
g_mutex_unlock (self->drain_lock);
} else {

1
omx/gstomxvideoenc.h
View file

@ -94,6 +94,7 @@ struct _GstOMXVideoEncClass
gboolean (*set_format) (GstOMXVideoEnc * self, GstOMXPort * port, GstVideoState * state);
GstCaps *(*get_caps) (GstOMXVideoEnc * self, GstOMXPort * port, GstVideoState * state);
GstFlowReturn (*handle_output_frame) (GstOMXVideoEnc * self, GstOMXPort * port, GstOMXBuffer * buffer, GstVideoFrame * frame);
};
GType gst_omx_video_enc_get_type (void);