mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-03 13:16:04 +00:00
video-converter: keep track of required temp lines
Make a small object to hold a pool of allocated temp lines. Keep track of how many temp lines each conversion stage needs and use this to allocate just enough temp lines from the temp lines object. from the temp lines object.
This commit is contained in:
Wim Taymans
parent
e182abcf79
commit
db304a446b
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@ -151,14 +151,7 @@ struct _GstVideoConverter
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GstStructure *config;
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GstVideoDitherMethod dither;
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guint n_tmplines;
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gpointer *tmplines;
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guint16 *errline;
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guint tmplines_idx;
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guint n_btmplines;
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gpointer *btmplines;
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guint btmplines_idx;
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gboolean fill_border;
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gpointer borderline;
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@ -248,9 +241,13 @@ struct _GstLineCache
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gboolean write_input;
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gboolean pass_alloc;
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gboolean alloc_writable;
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GstLineCacheNeedLineFunc need_line;
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gpointer need_line_data;
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GDestroyNotify need_line_notify;
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gboolean n_lines;
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guint stride;
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GstLineCacheAllocLineFunc alloc_line;
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gpointer alloc_line_data;
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GDestroyNotify alloc_line_notify;
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@ -280,6 +277,10 @@ gst_line_cache_clear (GstLineCache * cache)
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static void
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gst_line_cache_free (GstLineCache * cache)
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{
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if (cache->need_line_notify)
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cache->need_line_notify (cache->need_line_data);
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if (cache->alloc_line_notify)
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cache->alloc_line_notify (cache->alloc_line_data);
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gst_line_cache_clear (cache);
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g_ptr_array_unref (cache->lines);
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g_slice_free (GstLineCache, cache);
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@ -394,37 +395,64 @@ static gboolean do_vscale_lines (GstLineCache * cache, gint out_line,
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static gboolean do_hscale_lines (GstLineCache * cache, gint out_line,
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gint in_line, gpointer user_data);
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typedef struct
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{
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guint8 *data;
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guint stride;
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guint n_lines;
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guint idx;
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gpointer user_data;
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GDestroyNotify notify;
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} ConverterAlloc;
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static ConverterAlloc *
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converter_alloc_new (guint stride, guint n_lines, gpointer user_data,
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GDestroyNotify notify)
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{
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ConverterAlloc *alloc;
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GST_DEBUG ("stride %d, n_lines %d", stride, n_lines);
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alloc = g_slice_new0 (ConverterAlloc);
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alloc->data = g_malloc (stride * n_lines);
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alloc->stride = stride;
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alloc->n_lines = n_lines;
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alloc->idx = 0;
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alloc->user_data = user_data;
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alloc->notify = notify;
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return alloc;
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}
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static void
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alloc_tmplines (GstVideoConverter * convert, guint lines, guint blines,
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gint width)
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converter_alloc_free (ConverterAlloc * alloc)
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{
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if (alloc->notify)
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alloc->notify (alloc->user_data);
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g_free (alloc->data);
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g_slice_free (ConverterAlloc, alloc);
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}
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static void
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setup_border_alloc (GstVideoConverter * convert, ConverterAlloc * alloc)
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{
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gint i;
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convert->n_tmplines = lines;
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convert->tmplines = g_malloc (lines * sizeof (gpointer));
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for (i = 0; i < lines; i++)
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convert->tmplines[i] = g_malloc (sizeof (guint16) * (width + 8) * 4);
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convert->tmplines_idx = 0;
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convert->n_btmplines = blines;
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convert->btmplines = g_malloc (blines * sizeof (gpointer));
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for (i = 0; i < blines; i++) {
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convert->btmplines[i] = g_malloc (sizeof (guint16) * (width + 8) * 4);
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if (convert->borderline)
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memcpy (convert->btmplines[i], convert->borderline, width * 8);
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if (convert->borderline) {
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for (i = 0; i < alloc->n_lines; i++)
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memcpy (&alloc->data[i * alloc->stride], convert->borderline,
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alloc->stride);
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}
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convert->btmplines_idx = 0;
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}
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static gpointer
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get_temp_line (GstLineCache * cache, gint idx, gpointer user_data)
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{
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GstVideoConverter *convert = user_data;
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ConverterAlloc *alloc = user_data;
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gpointer tmpline;
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GST_DEBUG ("get temp line %d", idx);
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tmpline = (guint8 *) convert->tmplines[convert->tmplines_idx];
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convert->tmplines_idx = (convert->tmplines_idx + 1) % convert->n_tmplines;
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GST_DEBUG ("get temp line %d (%p %d)", idx, alloc, alloc->idx);
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tmpline = &alloc->data[alloc->stride * alloc->idx];
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alloc->idx = (alloc->idx + 1) % alloc->n_lines;
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return tmpline;
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}
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@ -432,13 +460,14 @@ get_temp_line (GstLineCache * cache, gint idx, gpointer user_data)
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static gpointer
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get_border_temp_line (GstLineCache * cache, gint idx, gpointer user_data)
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{
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GstVideoConverter *convert = user_data;
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ConverterAlloc *alloc = user_data;
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GstVideoConverter *convert = alloc->user_data;
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gpointer tmpline;
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GST_DEBUG ("get border temp line %d", idx);
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tmpline = (guint8 *) convert->btmplines[convert->btmplines_idx] +
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GST_DEBUG ("get temp line %d (%p %d)", idx, alloc, alloc->idx);
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tmpline = &alloc->data[alloc->stride * alloc->idx] +
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(convert->out_x * convert->pack_pstride);
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convert->btmplines_idx = (convert->btmplines_idx + 1) % convert->n_btmplines;
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alloc->idx = (alloc->idx + 1) % alloc->n_lines;
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return tmpline;
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}
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@ -548,6 +577,8 @@ chain_unpack_line (GstVideoConverter * convert)
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prev = convert->unpack_lines = gst_line_cache_new (NULL);
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prev->write_input = FALSE;
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prev->pass_alloc = FALSE;
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prev->n_lines = 1;
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prev->stride = convert->current_pstride * convert->current_width;
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gst_line_cache_set_need_line_func (convert->unpack_lines,
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do_unpack_lines, convert, NULL);
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@ -564,6 +595,8 @@ chain_upsample (GstVideoConverter * convert, GstLineCache * prev)
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prev = convert->upsample_lines = gst_line_cache_new (prev);
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prev->write_input = TRUE;
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prev->pass_alloc = TRUE;
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prev->n_lines = 4;
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prev->stride = convert->current_pstride * convert->current_width;
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gst_line_cache_set_need_line_func (convert->upsample_lines,
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do_upsample_lines, convert, NULL);
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}
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@ -1095,6 +1128,8 @@ chain_convert_to_RGB (GstVideoConverter * convert, GstLineCache * prev)
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prev = convert->to_RGB_lines = gst_line_cache_new (prev);
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prev->write_input = TRUE;
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prev->pass_alloc = FALSE;
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prev->n_lines = 1;
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prev->stride = convert->current_pstride * convert->current_width;
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gst_line_cache_set_need_line_func (convert->to_RGB_lines,
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do_convert_to_RGB_lines, convert, NULL);
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@ -1110,12 +1145,6 @@ chain_hscale (GstVideoConverter * convert, GstLineCache * prev)
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gint method;
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guint taps;
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prev = convert->hscale_lines = gst_line_cache_new (prev);
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prev->write_input = FALSE;
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prev->pass_alloc = FALSE;
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gst_line_cache_set_need_line_func (convert->hscale_lines,
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do_hscale_lines, convert, NULL);
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method = GET_OPT_RESAMPLER_METHOD (convert);
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taps = GET_OPT_RESAMPLER_TAPS (convert);
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@ -1123,12 +1152,22 @@ chain_hscale (GstVideoConverter * convert, GstLineCache * prev)
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gst_video_scaler_new (method, GST_VIDEO_SCALER_FLAG_NONE, taps,
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convert->in_width, convert->out_width, convert->config);
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gst_video_scaler_get_coeff (convert->h_scaler, 0, NULL, &taps);
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GST_DEBUG ("chain hscale %d->%d, taps %d, method %d",
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convert->in_width, convert->out_width, taps, method);
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convert->current_width = convert->out_width;
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convert->h_scale_format = convert->current_format;
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prev = convert->hscale_lines = gst_line_cache_new (prev);
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prev->write_input = FALSE;
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prev->pass_alloc = FALSE;
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prev->n_lines = 1;
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prev->stride = convert->current_pstride * convert->current_width;
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gst_line_cache_set_need_line_func (convert->hscale_lines,
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do_hscale_lines, convert, NULL);
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return prev;
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}
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@ -1136,7 +1175,7 @@ static GstLineCache *
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chain_vscale (GstVideoConverter * convert, GstLineCache * prev)
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{
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gint method;
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guint taps;
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guint taps, taps_i = 0;
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method = GET_OPT_RESAMPLER_METHOD (convert);
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taps = GET_OPT_RESAMPLER_TAPS (convert);
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@ -1145,6 +1184,8 @@ chain_vscale (GstVideoConverter * convert, GstLineCache * prev)
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convert->v_scaler_i =
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gst_video_scaler_new (method, GST_VIDEO_SCALER_FLAG_INTERLACED,
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taps, convert->in_height, convert->out_height, convert->config);
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gst_video_scaler_get_coeff (convert->v_scaler_i, 0, NULL, &taps_i);
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}
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convert->v_scaler_p =
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gst_video_scaler_new (method, 0, taps, convert->in_height,
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@ -1161,6 +1202,8 @@ chain_vscale (GstVideoConverter * convert, GstLineCache * prev)
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prev = convert->vscale_lines = gst_line_cache_new (prev);
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prev->pass_alloc = (taps == 1);
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prev->write_input = FALSE;
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prev->n_lines = MAX (taps_i, taps);
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prev->stride = convert->current_pstride * convert->current_width;
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gst_line_cache_set_need_line_func (convert->vscale_lines,
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do_vscale_lines, convert, NULL);
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@ -1309,6 +1352,8 @@ chain_convert (GstVideoConverter * convert, GstLineCache * prev)
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prev = convert->convert_lines = gst_line_cache_new (prev);
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prev->write_input = TRUE;
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prev->pass_alloc = pass_alloc;
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prev->n_lines = 1;
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prev->stride = convert->current_pstride * convert->current_width;
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gst_line_cache_set_need_line_func (convert->convert_lines,
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do_convert_lines, convert, NULL);
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}
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@ -1347,6 +1392,8 @@ chain_convert_to_YUV (GstVideoConverter * convert, GstLineCache * prev)
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prev = convert->to_YUV_lines = gst_line_cache_new (prev);
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prev->write_input = FALSE;
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prev->pass_alloc = FALSE;
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prev->n_lines = 1;
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prev->stride = convert->current_pstride * convert->current_width;
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gst_line_cache_set_need_line_func (convert->to_YUV_lines,
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do_convert_to_YUV_lines, convert, NULL);
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}
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@ -1362,6 +1409,8 @@ chain_downsample (GstVideoConverter * convert, GstLineCache * prev)
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prev = convert->downsample_lines = gst_line_cache_new (prev);
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prev->write_input = TRUE;
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prev->pass_alloc = TRUE;
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prev->n_lines = 4;
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prev->stride = convert->current_pstride * convert->current_width;
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gst_line_cache_set_need_line_func (convert->downsample_lines,
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do_downsample_lines, convert, NULL);
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}
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@ -1390,12 +1439,27 @@ setup_allocators (GstVideoConverter * convert)
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GstLineCache *cache;
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GstLineCacheAllocLineFunc alloc_line;
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gboolean alloc_writable;
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gpointer user_data;
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GDestroyNotify notify;
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gint width, n_lines;
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width = MAX (convert->in_maxwidth, convert->out_maxwidth);
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width += convert->out_x;
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n_lines = 1;
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/* start with using dest lines if we can directly write into it */
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if (convert->identity_pack) {
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alloc_line = get_dest_line;
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alloc_writable = TRUE;
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user_data = convert;
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notify = NULL;
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} else {
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user_data =
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converter_alloc_new (sizeof (guint16) * width * 4, 4 + BACKLOG, convert,
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NULL);
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setup_border_alloc (convert, user_data);
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notify = (GDestroyNotify) converter_alloc_free;
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alloc_line = get_border_temp_line;
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alloc_writable = FALSE;
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}
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@ -1403,19 +1467,31 @@ setup_allocators (GstVideoConverter * convert)
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/* now walk backwards, we try to write into the dest lines directly
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* and keep track if the source needs to be writable */
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for (cache = convert->pack_lines; cache; cache = cache->prev) {
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gst_line_cache_set_alloc_line_func (cache, alloc_line, convert, NULL);
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gst_line_cache_set_alloc_line_func (cache, alloc_line, user_data, notify);
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cache->alloc_writable = alloc_writable;
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n_lines = MAX (n_lines, cache->n_lines);
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/* make sure only one cache frees the allocator */
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notify = NULL;
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if (cache->pass_alloc == FALSE) {
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/* can't pass allocator, use temp lines */
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/* can't pass allocator, make new temp line allocator */
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user_data =
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converter_alloc_new (sizeof (guint16) * width * 4, n_lines + BACKLOG,
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convert, NULL);
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notify = (GDestroyNotify) converter_alloc_free;
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alloc_line = get_temp_line;
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alloc_writable = FALSE;
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n_lines = cache->n_lines;
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}
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/* if someone writes to the input, we need a writable line from the
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* previous cache */
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if (cache->write_input)
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alloc_writable = TRUE;
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}
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/* free leftover allocator */
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if (notify)
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notify (user_data);
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}
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/**
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@ -1538,9 +1614,6 @@ gst_video_converter_new (GstVideoInfo * in_info, GstVideoInfo * out_info,
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/* pack into final format */
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convert->pack_lines = chain_pack (convert, prev);
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/* now figure out allocators */
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setup_allocators (convert);
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width = MAX (convert->in_maxwidth, convert->out_maxwidth);
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width += convert->out_x;
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convert->errline = g_malloc0 (sizeof (guint16) * width * 4);
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@ -1565,8 +1638,8 @@ gst_video_converter_new (GstVideoInfo * in_info, GstVideoInfo * out_info,
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convert->borderline = NULL;
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}
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/* FIXME */
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alloc_tmplines (convert, 64, 4, width);
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/* now figure out allocators */
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setup_allocators (convert);
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done:
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return convert;
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@ -1599,8 +1672,6 @@ no_pack_func:
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void
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gst_video_converter_free (GstVideoConverter * convert)
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{
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gint i;
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g_return_if_fail (convert != NULL);
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if (convert->upsample_p)
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@ -1638,12 +1709,6 @@ gst_video_converter_free (GstVideoConverter * convert)
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g_free (convert->gamma_dec.gamma_table);
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g_free (convert->gamma_enc.gamma_table);
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for (i = 0; i < convert->n_tmplines; i++)
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g_free (convert->tmplines[i]);
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g_free (convert->tmplines);
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for (i = 0; i < convert->n_btmplines; i++)
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g_free (convert->btmplines[i]);
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g_free (convert->btmplines);
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g_free (convert->errline);
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g_free (convert->borderline);
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