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swscale: port to new video API

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This commit is contained in:
Wim Taymans 2011-06-20 11:29:10 +02:00
parent afaeebc1b1
commit 916d323a53
1 changed files with 35 additions and 68 deletions
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103
ext/libswscale/gstffmpegscale.c
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@ -47,16 +47,11 @@ typedef struct _GstFFMpegScale
GstPad *sinkpad, *srcpad;
/* state */
gint in_width, in_height;
gint out_width, out_height;
GstVideoInfo in_info, out_info;
enum PixelFormat in_pixfmt, out_pixfmt;
struct SwsContext *ctx;
/* cached auxiliary data */
gint in_stride[3], in_offset[3];
gint out_stride[3], out_offset[3];
/* property */
gint method;
} GstFFMpegScale;
@ -464,16 +459,15 @@ static gboolean
gst_ffmpegscale_get_unit_size (GstBaseTransform * trans, GstCaps * caps,
gsize * size)
{
gint width, height;
GstVideoFormat format;
GstVideoInfo info;
if (!gst_video_format_parse_caps (caps, &format, &width, &height))
if (!gst_video_info_from_caps (&info, caps))
return FALSE;
*size = gst_video_format_get_size (format, width, height);
*size = info.size;
GST_DEBUG_OBJECT (trans, "unit size = %d for format %d w %d height %d",
*size, format, width, height);
*size, info.format, info.width, info.height);
return TRUE;
}
@ -563,24 +557,6 @@ gst_ffmpeg_caps_to_pixfmt (const GstCaps * caps)
return pix_fmt;
}
static void
gst_ffmpegscale_fill_info (GstFFMpegScale * scale, GstVideoFormat format,
guint width, guint height, gint stride[], gint offset[])
{
gint i;
for (i = 0; i < 3; i++) {
stride[i] = gst_video_format_get_row_stride (format, i, width);
offset[i] = gst_video_format_get_component_offset (format, i, width,
height);
/* stay close to the ffmpeg offset way */
if (offset[i] < 3)
offset[i] = 0;
GST_DEBUG_OBJECT (scale, "format %d, component %d; stride %d, offset %d",
format, i, stride[i], offset[i]);
}
}
static gboolean
gst_ffmpegscale_set_caps (GstBaseTransform * trans, GstCaps * incaps,
GstCaps * outcaps)
@ -588,7 +564,6 @@ gst_ffmpegscale_set_caps (GstBaseTransform * trans, GstCaps * incaps,
GstFFMpegScale *scale = GST_FFMPEGSCALE (trans);
guint mmx_flags, altivec_flags;
gint swsflags;
GstVideoFormat in_format, out_format;
gboolean ok;
g_return_val_if_fail (scale->method <
@ -599,27 +574,21 @@ gst_ffmpegscale_set_caps (GstBaseTransform * trans, GstCaps * incaps,
scale->ctx = NULL;
}
ok = gst_video_format_parse_caps (incaps, &in_format, &scale->in_width,
&scale->in_height);
ok &= gst_video_format_parse_caps (outcaps, &out_format, &scale->out_width,
&scale->out_height);
ok = gst_video_info_from_caps (&scale->in_info, incaps);
ok &= gst_video_info_from_caps (&scale->out_info, outcaps);
scale->in_pixfmt = gst_ffmpeg_caps_to_pixfmt (incaps);
scale->out_pixfmt = gst_ffmpeg_caps_to_pixfmt (outcaps);
if (!ok || scale->in_pixfmt == PIX_FMT_NONE ||
scale->out_pixfmt == PIX_FMT_NONE ||
in_format == GST_VIDEO_FORMAT_UNKNOWN ||
out_format == GST_VIDEO_FORMAT_UNKNOWN)
scale->in_info.format == GST_VIDEO_FORMAT_UNKNOWN ||
scale->out_info.format == GST_VIDEO_FORMAT_UNKNOWN)
goto refuse_caps;
GST_DEBUG_OBJECT (scale, "format %d => %d, from=%dx%d -> to=%dx%d", in_format,
out_format, scale->in_width, scale->in_height, scale->out_width,
scale->out_height);
gst_ffmpegscale_fill_info (scale, in_format, scale->in_width,
scale->in_height, scale->in_stride, scale->in_offset);
gst_ffmpegscale_fill_info (scale, out_format, scale->out_width,
scale->out_height, scale->out_stride, scale->out_offset);
GST_DEBUG_OBJECT (scale, "format %d => %d, from=%dx%d -> to=%dx%d",
scale->in_info.format, scale->out_info.format, scale->in_info.width,
scale->in_info.height, scale->out_info.width, scale->out_info.height);
#ifdef HAVE_ORC
mmx_flags = orc_target_get_default_flags (orc_target_get_by_name ("mmx"));
@ -635,10 +604,10 @@ gst_ffmpegscale_set_caps (GstBaseTransform * trans, GstCaps * incaps,
swsflags = 0;
#endif
scale->ctx = sws_getContext (scale->in_width, scale->in_height,
scale->in_pixfmt, scale->out_width, scale->out_height, scale->out_pixfmt,
swsflags | gst_ffmpegscale_method_flags[scale->method], NULL, NULL, NULL);
scale->ctx = sws_getContext (scale->in_info.width, scale->in_info.height,
scale->in_pixfmt, scale->out_info.width, scale->out_info.height,
scale->out_pixfmt, swsflags | gst_ffmpegscale_method_flags[scale->method],
NULL, NULL, NULL);
if (!scale->ctx)
goto setup_failed;
@ -662,30 +631,28 @@ gst_ffmpegscale_transform (GstBaseTransform * trans, GstBuffer * inbuf,
GstBuffer * outbuf)
{
GstFFMpegScale *scale = GST_FFMPEGSCALE (trans);
guint8 *in_data[3] = { NULL, NULL, NULL };
guint8 *out_data[3] = { NULL, NULL, NULL };
gint i;
guint8 *indata, *outdata;
gsize insize, outsize;
GstVideoFrame in_frame, out_frame;
indata = gst_buffer_map (inbuf, &insize, NULL, GST_MAP_READ);
outdata = gst_buffer_map (outbuf, &outsize, NULL, GST_MAP_WRITE);
if (!gst_video_frame_map (&in_frame, &scale->in_info, inbuf, GST_MAP_READ))
goto invalid_buffer;
for (i = 0; i < 3; i++) {
/* again; stay close to the ffmpeg offset way */
if (!i || scale->in_offset[i])
in_data[i] = indata + scale->in_offset[i];
if (!i || scale->out_offset[i])
out_data[i] = outdata + scale->out_offset[i];
}
if (!gst_video_frame_map (&out_frame, &scale->out_info, outbuf,
GST_MAP_WRITE))
goto invalid_buffer;
sws_scale (scale->ctx, (const guint8 **) in_data, scale->in_stride, 0,
scale->in_height, out_data, scale->out_stride);
sws_scale (scale->ctx, (const guint8 **) in_frame.data, in_frame.info.stride,
0, scale->in_info.height, out_frame.data, out_frame.info.stride);
gst_buffer_unmap (inbuf, indata, insize);
gst_buffer_unmap (outbuf, outdata, outsize);
gst_video_frame_unmap (&in_frame);
gst_video_frame_unmap (&out_frame);
return GST_FLOW_OK;
/* ERRORS */
invalid_buffer:
{
return GST_FLOW_OK;
}
}
static gboolean
@ -707,12 +674,12 @@ gst_ffmpegscale_handle_src_event (GstPad * pad, GstEvent * event)
if (gst_structure_get_double (structure, "pointer_x", &pointer)) {
gst_structure_set (structure,
"pointer_x", G_TYPE_DOUBLE,
pointer * scale->in_width / scale->out_width, NULL);
pointer * scale->in_info.width / scale->out_info.width, NULL);
}
if (gst_structure_get_double (structure, "pointer_y", &pointer)) {
gst_structure_set (structure,
"pointer_y", G_TYPE_DOUBLE,
pointer * scale->in_height / scale->out_height, NULL);
pointer * scale->in_info.height / scale->out_info.height, NULL);
}
break;
default: