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decoder: add gst_vaapi_decoder_get_frame() API.

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Add new gst_vaapi_decoder_get_frame() function meant to be used with
gst_vaapi_decoder_decode(). The purpose is to return the next decoded
frame as a GstVideoCodecFrame and the associated GstVaapiSurfaceProxy
as the user-data object.
This commit is contained in:
Gwenole Beauchesne 2012-12-13 14:27:18 +01:00
parent c21d76cff2
commit 09c9e20379
2 changed files with 54 additions and 15 deletions
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62
gst-libs/gst/vaapi/gstvaapidecoder.c
View file

@ -630,6 +630,51 @@ gst_vaapi_decoder_get_surface(GstVaapiDecoder *decoder,
return status;
}
/**
* gst_vaapi_decoder_get_frame:
* @decoder: a #GstVaapiDecoder
* @out_frame_ptr: the next decoded frame as a #GstVideoCodecFrame
*
* Returns the next frame available in the list of decoded frames.
* @GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA is returned if there is no
* decoded frame pending in the queue.
*
* The actual surface is available as a #GstVaapiSurfaceProxy attached
* to the user-data anchor of the output frame. Ownership of the proxy
* is transferred to the frame.
*
* Return value: a #GstVaapiDecoderStatus
*/
GstVaapiDecoderStatus
gst_vaapi_decoder_get_frame(GstVaapiDecoder *decoder,
GstVideoCodecFrame **out_frame_ptr)
{
GstVaapiSurfaceProxy *proxy;
GstVideoCodecFrame *out_frame;
g_return_val_if_fail(GST_VAAPI_IS_DECODER(decoder),
GST_VAAPI_DECODER_STATUS_ERROR_INVALID_PARAMETER);
g_return_val_if_fail(out_frame_ptr != NULL,
GST_VAAPI_DECODER_STATUS_ERROR_INVALID_PARAMETER);
proxy = pop_surface(decoder);
if (!proxy || !(out_frame = gst_vaapi_surface_proxy_get_user_data(proxy)))
return GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA;
gst_video_codec_frame_set_user_data(out_frame,
proxy, (GDestroyNotify)gst_vaapi_mini_object_unref);
out_frame->pts = GST_VAAPI_SURFACE_PROXY_TIMESTAMP(proxy);
out_frame->duration = GST_VAAPI_SURFACE_PROXY_DURATION(proxy);
if (GST_VAAPI_SURFACE_PROXY_TFF(proxy))
GST_VIDEO_CODEC_FRAME_FLAG_SET(out_frame,
GST_VIDEO_CODEC_FRAME_FLAG_TFF);
*out_frame_ptr = out_frame;
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
void
gst_vaapi_decoder_set_picture_size(
GstVaapiDecoder *decoder,
@ -803,28 +848,19 @@ gst_vaapi_decoder_parse(GstVaapiDecoder *decoder,
}
GstVaapiDecoderStatus
gst_vaapi_decoder_decode(GstVaapiDecoder *decoder,
GstVideoCodecFrame *base_frame, GstVaapiSurfaceProxy **out_proxy_ptr)
gst_vaapi_decoder_decode(GstVaapiDecoder *decoder, GstVideoCodecFrame *frame)
{
GstVaapiDecoderStatus status;
g_return_val_if_fail(GST_VAAPI_IS_DECODER(decoder),
GST_VAAPI_DECODER_STATUS_ERROR_INVALID_PARAMETER);
g_return_val_if_fail(base_frame != NULL,
g_return_val_if_fail(frame != NULL,
GST_VAAPI_DECODER_STATUS_ERROR_INVALID_PARAMETER);
g_return_val_if_fail(base_frame->user_data != NULL,
GST_VAAPI_DECODER_STATUS_ERROR_INVALID_PARAMETER);
g_return_val_if_fail(out_proxy_ptr != NULL,
g_return_val_if_fail(frame->user_data != NULL,
GST_VAAPI_DECODER_STATUS_ERROR_INVALID_PARAMETER);
status = gst_vaapi_decoder_check_status(decoder);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
return status;
status = do_decode(decoder, base_frame);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
return status;
*out_proxy_ptr = pop_surface(decoder);
return GST_VAAPI_DECODER_STATUS_SUCCESS;
return do_decode(decoder, frame);
}

7
gst-libs/gst/vaapi/gstvaapidecoder.h
View file

@ -144,14 +144,17 @@ GstVaapiDecoderStatus
gst_vaapi_decoder_get_surface(GstVaapiDecoder *decoder,
GstVaapiSurfaceProxy **out_proxy_ptr);
GstVaapiDecoderStatus
gst_vaapi_decoder_get_frame(GstVaapiDecoder *decoder,
GstVideoCodecFrame **out_frame_ptr);
GstVaapiDecoderStatus
gst_vaapi_decoder_parse(GstVaapiDecoder *decoder,
GstVideoCodecFrame *frame, GstAdapter *adapter, gboolean at_eos,
guint *got_unit_size_ptr, gboolean *got_frame_ptr);
GstVaapiDecoderStatus
gst_vaapi_decoder_decode(GstVaapiDecoder *decoder,
GstVideoCodecFrame *frame, GstVaapiSurfaceProxy **out_proxy_ptr);
gst_vaapi_decoder_decode(GstVaapiDecoder *decoder, GstVideoCodecFrame *frame);
G_END_DECLS