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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-03 05:05:52 +00:00
videotestsrc: use baseclass allocator negotiation logic
Let the baseclass implement the negotiation of the allocators. Influence the allocator buffersize. Use the fill vmethod to fill the buffer with data.
This commit is contained in:
Wim Taymans
parent
a8971beee0
commit
f542a3e582
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@ -102,10 +102,11 @@ static gboolean gst_video_test_src_query (GstBaseSrc * bsrc, GstQuery * query);
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static void gst_video_test_src_get_times (GstBaseSrc * basesrc,
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GstBuffer * buffer, GstClockTime * start, GstClockTime * end);
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static GstFlowReturn gst_video_test_src_create (GstPushSrc * psrc,
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GstBuffer ** buffer);
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static gboolean gst_video_test_src_setup_allocation (GstBaseSrc * bsrc,
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GstQuery * query);
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static GstFlowReturn gst_video_test_src_fill (GstPushSrc * psrc,
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GstBuffer * buffer);
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static gboolean gst_video_test_src_start (GstBaseSrc * basesrc);
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static gboolean gst_video_test_src_stop (GstBaseSrc * basesrc);
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#define GST_TYPE_VIDEO_TEST_SRC_PATTERN (gst_video_test_src_pattern_get_type ())
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static GType
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@ -303,9 +304,9 @@ gst_video_test_src_class_init (GstVideoTestSrcClass * klass)
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gstbasesrc_class->query = gst_video_test_src_query;
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gstbasesrc_class->get_times = gst_video_test_src_get_times;
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gstbasesrc_class->start = gst_video_test_src_start;
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gstbasesrc_class->stop = gst_video_test_src_stop;
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gstbasesrc_class->setup_allocation = gst_video_test_src_setup_allocation;
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gstpushsrc_class->create = gst_video_test_src_create;
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gstpushsrc_class->fill = gst_video_test_src_fill;
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}
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static void
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@ -651,6 +652,27 @@ no_framerate:
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}
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}
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static gboolean
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gst_video_test_src_setup_allocation (GstBaseSrc * bsrc, GstQuery * query)
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{
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GstVideoTestSrc *videotestsrc;
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GstBufferPool *pool;
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guint size, min, max, prefix, alignment;
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videotestsrc = GST_VIDEO_TEST_SRC (bsrc);
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gst_query_parse_allocation_params (query, &size, &min, &max, &prefix,
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&alignment, &pool);
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/* adjust size */
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size = MAX (size, videotestsrc->size);
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gst_query_set_allocation_params (query, size, min, max, prefix,
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alignment, pool);
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return TRUE;
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}
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static gboolean
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gst_video_test_src_setcaps (GstBaseSrc * bsrc, GstCaps * caps)
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{
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@ -659,9 +681,6 @@ gst_video_test_src_setcaps (GstBaseSrc * bsrc, GstCaps * caps)
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struct fourcc_list_struct *fourcc;
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GstVideoTestSrc *videotestsrc;
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GstVideoTestSrcColorSpec color_spec;
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GstQuery *query;
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GstBufferPool *pool;
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guint size, min, max, prefix, alignment;
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videotestsrc = GST_VIDEO_TEST_SRC (bsrc);
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@ -678,45 +697,13 @@ gst_video_test_src_setcaps (GstBaseSrc * bsrc, GstCaps * caps)
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videotestsrc->rate_denominator = rate_denominator;
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videotestsrc->bpp = videotestsrc->fourcc->bitspp;
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videotestsrc->color_spec = color_spec;
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videotestsrc->size =
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gst_video_test_src_get_size (videotestsrc, width, height);
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GST_DEBUG_OBJECT (videotestsrc, "size %dx%d, %d/%d fps",
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videotestsrc->width, videotestsrc->height,
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videotestsrc->rate_numerator, videotestsrc->rate_denominator);
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/* find a pool for the negotiated caps now */
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query = gst_query_new_allocation (caps, TRUE);
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if (gst_pad_peer_query (bsrc->srcpad, query)) {
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/* we got configuration from our peer, parse them */
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gst_query_parse_allocation_params (query, &size, &min, &max, &prefix,
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&alignment, &pool);
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} else {
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size = gst_video_test_src_get_size (videotestsrc, width, height);
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min = max = 0;
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prefix = 0;
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alignment = 0;
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pool = NULL;
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}
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if (pool == NULL) {
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GstStructure *config;
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/* we did not get a pool, make one ourselves then */
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pool = gst_buffer_pool_new ();
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config = gst_buffer_pool_get_config (pool);
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gst_buffer_pool_config_set (config, caps, size, min, max, prefix,
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alignment);
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gst_buffer_pool_set_config (pool, config);
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}
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if (videotestsrc->pool)
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gst_object_unref (videotestsrc->pool);
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videotestsrc->pool = pool;
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/* and activate */
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gst_buffer_pool_set_active (pool, TRUE);
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return res;
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/* ERRORS */
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@ -861,18 +848,16 @@ gst_video_test_src_is_seekable (GstBaseSrc * psrc)
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}
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static GstFlowReturn
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gst_video_test_src_create (GstPushSrc * psrc, GstBuffer ** buffer)
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gst_video_test_src_fill (GstPushSrc * psrc, GstBuffer * buffer)
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{
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GstVideoTestSrc *src;
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gsize size;
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GstBuffer *outbuf = NULL;
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GstFlowReturn res;
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GstClockTime next_time;
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guint8 *data;
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src = GST_VIDEO_TEST_SRC (psrc);
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if (G_UNLIKELY (src->pool == NULL))
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if (G_UNLIKELY (src->fourcc == NULL))
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goto not_negotiated;
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/* 0 framerate and we are at the second frame, eos */
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@ -882,41 +867,35 @@ gst_video_test_src_create (GstPushSrc * psrc, GstBuffer ** buffer)
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GST_LOG_OBJECT (src,
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"creating buffer from pool for frame %d", (gint) src->n_frames);
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res = gst_buffer_pool_acquire_buffer (src->pool, &outbuf, NULL);
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if (res != GST_FLOW_OK)
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goto no_buffer;
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data = gst_buffer_map (outbuf, &size, NULL, GST_MAP_WRITE);
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data = gst_buffer_map (buffer, &size, NULL, GST_MAP_WRITE);
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memset (data, 0, size);
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src->tmpline_u8 = g_malloc (src->width + 8);
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src->tmpline = g_malloc ((src->width + 8) * 4);
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src->tmpline2 = g_malloc ((src->width + 8) * 4);
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src->make_image (src, (void *) data, src->width, src->height);
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gst_buffer_unmap (outbuf, data, size);
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gst_buffer_unmap (buffer, data, size);
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g_free (src->tmpline);
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g_free (src->tmpline2);
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g_free (src->tmpline_u8);
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GST_BUFFER_TIMESTAMP (outbuf) = src->timestamp_offset + src->running_time;
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GST_BUFFER_OFFSET (outbuf) = src->n_frames;
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GST_BUFFER_TIMESTAMP (buffer) = src->timestamp_offset + src->running_time;
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GST_BUFFER_OFFSET (buffer) = src->n_frames;
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src->n_frames++;
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GST_BUFFER_OFFSET_END (outbuf) = src->n_frames;
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GST_BUFFER_OFFSET_END (buffer) = src->n_frames;
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if (src->rate_numerator) {
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next_time = gst_util_uint64_scale_int (src->n_frames * GST_SECOND,
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src->rate_denominator, src->rate_numerator);
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GST_BUFFER_DURATION (outbuf) = next_time - src->running_time;
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GST_BUFFER_DURATION (buffer) = next_time - src->running_time;
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} else {
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next_time = src->timestamp_offset;
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/* NONE means forever */
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GST_BUFFER_DURATION (outbuf) = GST_CLOCK_TIME_NONE;
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GST_BUFFER_DURATION (buffer) = GST_CLOCK_TIME_NONE;
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}
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src->running_time = next_time;
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*buffer = outbuf;
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return GST_FLOW_OK;
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not_negotiated:
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@ -930,12 +909,6 @@ eos:
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GST_DEBUG_OBJECT (src, "eos: 0 framerate, frame %d", (gint) src->n_frames);
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return GST_FLOW_UNEXPECTED;
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}
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no_buffer:
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{
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GST_DEBUG_OBJECT (src, "could not allocate buffer, reason %s",
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gst_flow_get_name (res));
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return res;
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}
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}
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static gboolean
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@ -949,22 +922,6 @@ gst_video_test_src_start (GstBaseSrc * basesrc)
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return TRUE;
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}
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static gboolean
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gst_video_test_src_stop (GstBaseSrc * basesrc)
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{
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GstVideoTestSrc *src = GST_VIDEO_TEST_SRC (basesrc);
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/* deactivate */
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if (src->pool) {
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gst_buffer_pool_set_active (src->pool, FALSE);
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gst_object_unref (src->pool);
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}
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src->pool = NULL;
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return TRUE;
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}
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static gboolean
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plugin_init (GstPlugin * plugin)
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{
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@ -142,9 +142,7 @@ struct _GstVideoTestSrc {
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gint bpp;
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gint rate_numerator;
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gint rate_denominator;
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/* the bufferpool */
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GstBufferPool *pool;
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guint size;
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/* private */
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gint64 timestamp_offset; /* base offset */
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