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video-converter: handle mixed interlaced
When dealing with mixed interlaced, setup a scaler and chroma-resampler for both interlaced and progressive frames and switch between them depending on the interlace mode of the input frame.
This commit is contained in:
Wim Taymans
parent
0358e23baf
commit
b9bee1af8c
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@ -179,6 +179,8 @@ struct _GstVideoConverter
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/* chroma upsample */
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GstLineCache *upsample_lines;
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GstVideoChromaResample *upsample;
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GstVideoChromaResample *upsample_p;
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GstVideoChromaResample *upsample_i;
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guint up_n_lines;
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gint up_offset;
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@ -194,6 +196,8 @@ struct _GstVideoConverter
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gint h_scale_format;
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GstLineCache *vscale_lines;
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GstVideoScaler *v_scaler;
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GstVideoScaler *v_scaler_p;
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GstVideoScaler *v_scaler_i;
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gint v_scale_width;
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gint v_scale_format;
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@ -212,6 +216,8 @@ struct _GstVideoConverter
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/* chroma downsample */
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GstLineCache *downsample_lines;
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GstVideoChromaResample *downsample;
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GstVideoChromaResample *downsample_p;
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GstVideoChromaResample *downsample_i;
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guint down_n_lines;
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gint down_offset;
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@ -1129,24 +1135,25 @@ chain_hscale (GstVideoConverter * convert, GstLineCache * prev)
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static GstLineCache *
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chain_vscale (GstVideoConverter * convert, GstLineCache * prev)
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{
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GstVideoScalerFlags flags;
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gint method;
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guint taps;
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flags = GST_VIDEO_INFO_IS_INTERLACED (&convert->in_info) ?
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GST_VIDEO_SCALER_FLAG_INTERLACED : 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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convert->v_scaler =
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gst_video_scaler_new (method, flags, taps, convert->in_height,
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if (GST_VIDEO_INFO_IS_INTERLACED (&convert->in_info)) {
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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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}
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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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convert->out_height, convert->config);
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convert->v_scale_width = convert->current_width;
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convert->v_scale_format = convert->current_format;
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convert->current_height = convert->out_height;
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gst_video_scaler_get_coeff (convert->v_scaler, 0, NULL, &taps);
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gst_video_scaler_get_coeff (convert->v_scaler_p, 0, NULL, &taps);
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GST_DEBUG ("chain vscale %d->%d, taps %d, method %d",
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convert->in_height, convert->out_height, taps, method);
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@ -1596,12 +1603,18 @@ gst_video_converter_free (GstVideoConverter * convert)
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g_return_if_fail (convert != NULL);
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if (convert->upsample)
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gst_video_chroma_resample_free (convert->upsample);
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if (convert->downsample)
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gst_video_chroma_resample_free (convert->downsample);
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if (convert->v_scaler)
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gst_video_scaler_free (convert->v_scaler);
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if (convert->upsample_p)
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gst_video_chroma_resample_free (convert->upsample_p);
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if (convert->upsample_i)
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gst_video_chroma_resample_free (convert->upsample_i);
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if (convert->downsample_p)
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gst_video_chroma_resample_free (convert->downsample_p);
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if (convert->downsample_i)
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gst_video_chroma_resample_free (convert->downsample_i);
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if (convert->v_scaler_p)
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gst_video_scaler_free (convert->v_scaler_p);
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if (convert->v_scaler_i)
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gst_video_scaler_free (convert->v_scaler_i);
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if (convert->h_scaler)
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gst_video_scaler_free (convert->h_scaler);
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@ -1813,46 +1826,31 @@ video_converter_compute_resample (GstVideoConverter * convert)
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sfinfo = in_info->finfo;
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dfinfo = out_info->finfo;
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GST_DEBUG ("site: %d->%d, w_sub: %d->%d, h_sub: %d->%d", in_info->chroma_site,
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out_info->chroma_site, sfinfo->w_sub[2], dfinfo->w_sub[2],
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sfinfo->h_sub[2], dfinfo->h_sub[2]);
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if (sfinfo->w_sub[2] != dfinfo->w_sub[2] ||
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sfinfo->h_sub[2] != dfinfo->h_sub[2] ||
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in_info->chroma_site != out_info->chroma_site ||
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in_info->width != out_info->width ||
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in_info->height != out_info->height) {
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GstVideoChromaFlags flags = (GST_VIDEO_INFO_IS_INTERLACED (in_info) ?
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GST_VIDEO_CHROMA_FLAG_INTERLACED : 0);
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convert->upsample = gst_video_chroma_resample_new (0,
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in_info->chroma_site, flags, sfinfo->unpack_format, sfinfo->w_sub[2],
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if (GST_VIDEO_INFO_IS_INTERLACED (in_info)) {
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convert->upsample_i = gst_video_chroma_resample_new (0,
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in_info->chroma_site, GST_VIDEO_CHROMA_FLAG_INTERLACED,
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sfinfo->unpack_format, sfinfo->w_sub[2], sfinfo->h_sub[2]);
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convert->downsample_i =
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gst_video_chroma_resample_new (0, out_info->chroma_site,
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GST_VIDEO_CHROMA_FLAG_INTERLACED, dfinfo->unpack_format,
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-dfinfo->w_sub[2], -dfinfo->h_sub[2]);
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}
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convert->upsample_p = gst_video_chroma_resample_new (0,
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in_info->chroma_site, 0, sfinfo->unpack_format, sfinfo->w_sub[2],
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sfinfo->h_sub[2]);
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convert->downsample = gst_video_chroma_resample_new (0,
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out_info->chroma_site, flags, dfinfo->unpack_format, -dfinfo->w_sub[2],
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convert->downsample_p = gst_video_chroma_resample_new (0,
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out_info->chroma_site, 0, dfinfo->unpack_format, -dfinfo->w_sub[2],
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-dfinfo->h_sub[2]);
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} else {
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convert->upsample = NULL;
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convert->downsample = NULL;
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}
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if (convert->upsample) {
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gst_video_chroma_resample_get_info (convert->upsample,
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&convert->up_n_lines, &convert->up_offset);
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} else {
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convert->up_n_lines = 1;
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convert->up_offset = 0;
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}
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if (convert->downsample) {
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gst_video_chroma_resample_get_info (convert->downsample,
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&convert->down_n_lines, &convert->down_offset);
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} else {
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convert->down_n_lines = 1;
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convert->down_offset = 0;
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}
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GST_DEBUG ("upsample: %p, site: %d, offset %d, n_lines %d", convert->upsample,
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in_info->chroma_site, convert->up_offset, convert->up_n_lines);
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GST_DEBUG ("downsample: %p, site: %d, offset %d, n_lines %d",
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convert->downsample, out_info->chroma_site, convert->down_offset,
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convert->down_n_lines);
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}
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#define FRAME_GET_PLANE_STRIDE(frame, plane) \
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@ -2173,6 +2171,32 @@ video_converter_generic (GstVideoConverter * convert, const GstVideoFrame * src,
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convert->src = src;
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convert->dest = dest;
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if (GST_VIDEO_FRAME_IS_INTERLACED (src)) {
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GST_DEBUG ("setup interlaced frame");
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convert->upsample = convert->upsample_i;
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convert->downsample = convert->downsample_i;
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convert->v_scaler = convert->v_scaler_i;
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} else {
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GST_DEBUG ("setup progressive frame");
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convert->upsample = convert->upsample_p;
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convert->downsample = convert->downsample_p;
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convert->v_scaler = convert->v_scaler_p;
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}
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if (convert->upsample) {
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gst_video_chroma_resample_get_info (convert->upsample,
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&convert->up_n_lines, &convert->up_offset);
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} else {
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convert->up_n_lines = 1;
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convert->up_offset = 0;
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}
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if (convert->downsample) {
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gst_video_chroma_resample_get_info (convert->downsample,
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&convert->down_n_lines, &convert->down_offset);
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} else {
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convert->down_n_lines = 1;
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convert->down_offset = 0;
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}
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pack_lines = convert->pack_nlines; /* only 1 for now */
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pstride = convert->pack_pstride;
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