From a0232d6ddc920431def95f476a592abec09182a1 Mon Sep 17 00:00:00 2001 From: Gwenole Beauchesne Date: Tue, 9 Oct 2012 15:34:18 +0200 Subject: [PATCH] mpeg2: fix end-of-stream conditions (flush). Decode pending data in the adapter prior to processing the actual code for end-of-stream. Initial code from Feng Yuan. --- gst-libs/gst/vaapi/gstvaapidecoder_mpeg2.c | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) diff --git a/gst-libs/gst/vaapi/gstvaapidecoder_mpeg2.c b/gst-libs/gst/vaapi/gstvaapidecoder_mpeg2.c index 92ff032..a4544c6 100644 --- a/gst-libs/gst/vaapi/gstvaapidecoder_mpeg2.c +++ b/gst-libs/gst/vaapi/gstvaapidecoder_mpeg2.c @@ -950,6 +950,7 @@ decode_buffer(GstVaapiDecoderMpeg2 *decoder, GstBuffer *buffer) { GstVaapiDecoderMpeg2Private * const priv = decoder->priv; GstVaapiDecoderStatus status; + gboolean is_eos; guchar *buf; guint buf_size, size; guint32 start_code; @@ -958,10 +959,9 @@ decode_buffer(GstVaapiDecoderMpeg2 *decoder, GstBuffer *buffer) buf = GST_BUFFER_DATA(buffer); buf_size = GST_BUFFER_SIZE(buffer); - if (!buf && buf_size == 0) - return decode_sequence_end(decoder); - - gst_adapter_push(priv->adapter, gst_buffer_ref(buffer)); + is_eos = GST_BUFFER_IS_EOS(buffer); + if (buf && buf_size > 0) + gst_adapter_push(priv->adapter, gst_buffer_ref(buffer)); size = gst_adapter_available(priv->adapter); do { @@ -987,8 +987,12 @@ decode_buffer(GstVaapiDecoderMpeg2 *decoder, GstBuffer *buffer) if (size < 8) break; ofs = scan_for_start_code(priv->adapter, 4, size - 4, NULL); - if (ofs < 0) - break; + if (ofs < 0) { + // Assume the whole packet is present if end-of-stream + if (!is_eos) + break; + ofs = size; + } buffer = gst_adapter_take_buffer(priv->adapter, ofs); size -= ofs; @@ -1072,6 +1076,10 @@ decode_buffer(GstVaapiDecoderMpeg2 *decoder, GstBuffer *buffer) } gst_buffer_unref(buffer); } while (status == GST_VAAPI_DECODER_STATUS_SUCCESS); + + if (is_eos && (status == GST_VAAPI_DECODER_STATUS_SUCCESS || + status == GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA)) + status = decode_sequence_end(decoder); return status; } -- 2.7.4