mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2025-06-05 06:58:56 +00:00
Code Issues 1 Projects Releases Wiki Activity

swscale: port to new video API

Browse source
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
Show stats Download patch file Download diff file Expand all files Collapse all files

103
ext/libswscale/gstffmpegscale.c
View file

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