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0475cf2613
Original commit message from CVS: 2003-12-23 Ronald Bultje <rbultje@ronald.bitfreak.net> * ext/divx/gstdivxdec.c: (gst_divxdec_base_init), (gst_divxdec_init), (gst_divxdec_negotiate): * ext/divx/gstdivxdec.h: * ext/divx/gstdivxenc.c: (gst_divxenc_base_init), (gst_divxenc_init): * ext/faac/gstfaac.c: (gst_faac_base_init), (gst_faac_init), (gst_faac_sinkconnect), (gst_faac_srcconnect): * ext/mpeg2enc/gstmpeg2enc.cc: * ext/mpeg2enc/gstmpeg2encoder.cc: * ext/mpeg2enc/gstmpeg2encpicturereader.cc: * sys/dxr3/dxr3audiosink.c: (dxr3audiosink_base_init), (dxr3audiosink_init), (dxr3audiosink_pcm_sinklink): * sys/dxr3/dxr3spusink.c: (dxr3spusink_base_init), (dxr3spusink_init): * sys/dxr3/dxr3videosink.c: (dxr3videosink_base_init), (dxr3videosink_init): Fix caps breakage after Dave's caps branch merge.
130 lines
3.4 KiB
C++
130 lines
3.4 KiB
C++
/* GStreamer mpeg2enc (mjpegtools) wrapper
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* (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
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*
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* gstmpeg2encpicturereader.cc: GStreamer/mpeg2enc input wrapper
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <encoderparams.hh>
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#include "gstmpeg2encpicturereader.hh"
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/*
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* Class init stuff.
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*/
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GstMpeg2EncPictureReader::GstMpeg2EncPictureReader (GstPad *in_pad,
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GstCaps *in_caps,
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EncoderParams *params) :
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PictureReader (*params)
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{
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pad = in_pad;
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caps = gst_caps_copy (in_caps);
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}
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GstMpeg2EncPictureReader::~GstMpeg2EncPictureReader ()
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{
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gst_caps_free (caps);
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}
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/*
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* Get input picture parameters (width/height etc.).
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*/
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void
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GstMpeg2EncPictureReader::StreamPictureParams (MPEG2EncInVidParams &strm)
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{
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GstStructure *structure = gst_caps_get_structure (caps, 0);
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gint width, height;
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gdouble fps;
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gst_structure_get_int (structure, "width", &width);
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gst_structure_get_int (structure, "height", &height);
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gst_structure_get_double (structure, "framerate", &fps);
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strm.horizontal_size = width;
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strm.vertical_size = height;
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strm.frame_rate_code = mpeg_framerate_code (mpeg_conform_framerate (fps));
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strm.interlacing_code = Y4M_ILACE_NONE;
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strm.aspect_ratio_code = mpeg_guess_mpeg_aspect_code (2, y4m_sar_SQUARE,
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strm.horizontal_size,
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strm.vertical_size);
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/* FIXME:
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* strm.interlacing_code = y4m_si_get_interlace(&si);
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* sar = y4m_si_get_sampleaspect(&si);
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* strm.aspect_ratio_code =
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* mpeg_guess_mpeg_aspect_code(2, sar,
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* strm.horizontal_size,
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* strm.vertical_size);
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*/
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}
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/*
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* Read a frame.
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*/
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bool
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GstMpeg2EncPictureReader::LoadFrame ()
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{
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GstData *data;
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GstBuffer *buf = NULL;
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gint i, x, y, n;
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guint8 *frame;
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do {
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if (!(data = gst_pad_pull (pad))) {
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return true;
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} else if (GST_IS_EVENT (data)) {
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if (GST_EVENT_TYPE (data) == GST_EVENT_EOS) {
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gst_pad_event_default (pad, GST_EVENT (data));
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return true;
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}
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gst_pad_event_default (pad, GST_EVENT (data));
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} else {
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buf = GST_BUFFER (data);
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}
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} while (!buf);
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frame = GST_BUFFER_DATA (buf);
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n = frames_read % input_imgs_buf_size;
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x = encparams.horizontal_size;
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y = encparams.vertical_size;
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for (i = 0; i < y; i++) {
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memcpy (input_imgs_buf[n][0]+i*encparams.phy_width, frame, x);
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frame += x;
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}
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lum_mean[n] = LumMean (input_imgs_buf[n][0]);
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x >>= 1;
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y >>= 1;
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for (i = 0; i < y; i++) {
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memcpy (input_imgs_buf[n][1]+i*encparams.phy_chrom_width, frame, x);
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frame += x;
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}
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for (i = 0; i < y; i++) {
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memcpy (input_imgs_buf[n][2]+i*encparams.phy_chrom_width, frame, x);
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frame += x;
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}
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gst_buffer_unref (buf);
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return false;
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}
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