Add decoder demos. Use -c (mpeg2|h264|vc1) to select the codec.

XXX: only VC-1 decoding works at this time because of awful
bugs left in GstVaapiDecoderFfmpeg et al.

1 files changed, 152 insertions, 0 deletions

diff --git a/tests/test-decode.c b/tests/test-decode.c
new file mode 100644
index 00000000..a08383f7
--- /dev/null
+++ b/tests/test-decode.c
@@ -0,0 +1,152 @@
+/*
+ *  test-decode.c - Test GstVaapiDecoder
+ *
+ *  gstreamer-vaapi (C) 2010 Splitted-Desktop Systems
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+#include <string.h>
+#include <gst/vaapi/gstvaapidisplay_x11.h>
+#include <gst/vaapi/gstvaapiwindow_x11.h>
+#include <gst/vaapi/gstvaapidecoder.h>
+#include <gst/vaapi/gstvaapidecoder_ffmpeg.h>
+#include <gst/vaapi/gstvaapisurface.h>
+#include "test-mpeg2.h"
+#include "test-h264.h"
+#include "test-vc1.h"
+
+/* Default timeout to wait for the first decoded frame (10 ms) */
+/* Defined to -1 if the application indefintely waits for the decoded frame */
+#define TIMEOUT -1
+
+typedef void (*GetVideoDataFunc)(const guchar **data, guint *size);
+
+typedef struct _CodecDefs CodecDefs;
+struct _CodecDefs {
+    const gchar        *codec_str;
+    GstVaapiCodec       codec;
+    GetVideoDataFunc    get_video_data;
+};
+
+static const CodecDefs g_codec_defs[] = {
+    { "mpeg2",  GST_VAAPI_CODEC_MPEG2,  mpeg2_get_video_data    },
+    { "h264",   GST_VAAPI_CODEC_H264,   h264_get_video_data     },
+    { "vc1",    GST_VAAPI_CODEC_VC1,    vc1_get_video_data      },
+    { NULL, }
+};
+
+static const CodecDefs *
+get_codec_defs(const gchar *codec_str)
+{
+    const CodecDefs *c;
+    for (c = g_codec_defs; c->codec_str; c++)
+        if (strcmp(codec_str, c->codec_str) == 0)
+            return c;
+    return NULL;
+}
+
+static inline void pause(void)
+{
+    g_print("Press any key to continue...\n");
+    getchar();
+}
+
+static gchar *g_codec_str;
+
+static GOptionEntry g_options[] = {
+    { "codec", 'c',
+      0,
+      G_OPTION_ARG_STRING, &g_codec_str,
+      "codec to test", NULL },
+    { NULL, }
+};
+
+int
+main(int argc, char *argv[])
+{
+    GOptionContext       *options;
+    GstVaapiDisplay      *display;
+    GstVaapiWindow       *window;
+    GstVaapiDecoder      *decoder;
+    GstVaapiDecoderStatus status;
+    const CodecDefs      *codec;
+    GstVaapiSurfaceProxy *proxy;
+    const guchar         *vdata;
+    guint                 vdata_size;
+
+    static const guint win_width  = 640;
+    static const guint win_height = 480;
+
+    gst_init(&argc, &argv);
+
+    options = g_option_context_new(" - test-decode options");
+    g_option_context_add_main_entries(options, g_options, NULL);
+    g_option_context_parse(options, &argc, &argv, NULL);
+    g_option_context_free(options);
+
+    if (!g_codec_str)
+        g_codec_str = g_strdup("h264");
+
+    g_print("Test %s decode\n", g_codec_str);
+    codec = get_codec_defs(g_codec_str);
+    if (!codec)
+        g_error("no %s codec data found", g_codec_str);
+
+    display = gst_vaapi_display_x11_new(NULL);
+    if (!display)
+        g_error("could not create VA display");
+
+    window = gst_vaapi_window_x11_new(display, win_width, win_height);
+    if (!window)
+        g_error("could not create window");
+
+    codec->get_video_data(&vdata, &vdata_size);
+    decoder = gst_vaapi_decoder_ffmpeg_new(display, codec->codec);
+    if (!decoder)
+        g_error("could not create FFmpeg decoder");
+
+    if (!gst_vaapi_decoder_put_buffer_data(decoder, vdata, vdata_size))
+        g_error("could not send video data to the decoder");
+    if (0 && !gst_vaapi_decoder_put_buffer(decoder, NULL))
+        g_error("could not send EOS to the decoder");
+
+    if (TIMEOUT < 0) {
+        proxy = gst_vaapi_decoder_get_surface(decoder, &status);
+        if (!proxy)
+            g_error("could not get decoded surface");
+    }
+    else {
+        proxy = gst_vaapi_decoder_timed_get_surface(decoder, TIMEOUT, &status);
+        if (!proxy)
+            g_warning("Could not get decoded surface after %d us", TIMEOUT);
+    }
+
+    gst_vaapi_window_show(window);
+
+    if (!gst_vaapi_window_put_surface(window, proxy->surface, NULL, NULL,
+                                      GST_VAAPI_PICTURE_STRUCTURE_FRAME))
+        g_error("could not render surface");
+
+    pause();
+
+    g_object_unref(proxy);
+    g_object_unref(decoder);
+    g_object_unref(window);
+    g_object_unref(display);
+    g_free(g_codec_str);
+    gst_deinit();
+    return 0;
+}