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decoder: make decode_step() return once the frame is decoded.

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Make sure we always have a free surface left to use for decoding the
current frame. This means that decode_step() has to return once a frame
gets decoded. If the current adapter contains more buffers with valid
frames, they will get parsed and decoded on subsequent iterations.
This commit is contained in:
Gwenole Beauchesne 2013-01-15 16:55:29 +01:00
parent 9485b17fd7
commit cc347cb41e
1 changed files with 11 additions and 7 deletions
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18
gst-libs/gst/vaapi/gstvaapidecoder.c
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@ -264,13 +264,16 @@ decode_step(GstVaapiDecoder *decoder)
GstVaapiParserState * const ps = &priv->parser_state;
GstVaapiDecoderStatus status;
GstBuffer *buffer;
gboolean at_eos, got_frame;
gboolean got_frame, at_eos = FALSE;
guint got_unit_size;
status = gst_vaapi_decoder_check_status(decoder);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
return status;
if (ps->current_frame)
goto parse;
do {
buffer = pop_buffer(decoder);
if (!buffer)
@ -288,6 +291,7 @@ decode_step(GstVaapiDecoder *decoder)
ps->current_frame->ref_count = 1;
}
parse:
status = do_parse(decoder, ps->current_frame,
ps->input_adapter, at_eos, &got_unit_size, &got_frame);
GST_DEBUG("parse frame (status = %d)", status);
@ -314,6 +318,7 @@ decode_step(GstVaapiDecoder *decoder)
gst_video_codec_frame_unref(ps->current_frame);
ps->current_frame = NULL;
break;
}
} while (status == GST_VAAPI_DECODER_STATUS_SUCCESS &&
gst_adapter_available(ps->input_adapter) > 0);
@ -634,13 +639,12 @@ gst_vaapi_decoder_get_surface(GstVaapiDecoder *decoder,
g_return_val_if_fail(out_proxy_ptr != NULL,
GST_VAAPI_DECODER_STATUS_ERROR_INVALID_PARAMETER);
frame = pop_frame(decoder);
if (!frame) {
do {
status = decode_step(decoder);
} while (status == GST_VAAPI_DECODER_STATUS_SUCCESS);
do {
frame = pop_frame(decoder);
}
if (frame)
break;
status = decode_step(decoder);
} while (status == GST_VAAPI_DECODER_STATUS_SUCCESS);
if (frame) {
*out_proxy_ptr = gst_vaapi_surface_proxy_ref(frame->user_data);