From 8b6516d5c5b87294dde7bb21735f804bb9fac23d Mon Sep 17 00:00:00 2001 From: Mathieu Duponchelle Date: Mon, 2 Jul 2018 17:39:30 +0200 Subject: [PATCH] Remove obsolete scale and resample sources https://bugzilla.gnome.org/show_bug.cgi?id=792900 --- ext/libav/gstavaudioresample.c | 307 ------------------------------- ext/libav/gstavscale.c | 401 ----------------------------------------- 2 files changed, 708 deletions(-) delete mode 100644 ext/libav/gstavaudioresample.c delete mode 100644 ext/libav/gstavscale.c diff --git a/ext/libav/gstavaudioresample.c b/ext/libav/gstavaudioresample.c deleted file mode 100644 index f5dce0b..0000000 --- a/ext/libav/gstavaudioresample.c +++ /dev/null @@ -1,307 +0,0 @@ -/* GStreamer - * Copyright (C) <1999> Erik Walthinsen - * This file: - * Copyright (C) 2005 Luca Ognibene - * Copyright (C) 2006 Martin Zlomek - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, - * Boston, MA 02110-1301, USA. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include - -#include -#include -#include - -#include "gstffmpeg.h" -#include "gstffmpegcodecmap.h" - -typedef struct _GstFFMpegAudioResample -{ - GstBaseTransform element; - - GstPad *sinkpad, *srcpad; - - gint in_rate, out_rate; - gint in_channels, out_channels; - - ReSampleContext *res; -} GstFFMpegAudioResample; - -typedef struct _GstFFMpegAudioResampleClass -{ - GstBaseTransformClass parent_class; -} GstFFMpegAudioResampleClass; - -#define GST_TYPE_FFMPEGAUDIORESAMPLE \ - (gst_ffmpegaudioresample_get_type()) -#define GST_FFMPEGAUDIORESAMPLE(obj) \ - (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_FFMPEGAUDIORESAMPLE,GstFFMpegAudioResample)) -#define GST_FFMPEGAUDIORESAMPLE_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_FFMPEGAUDIORESAMPLE,GstFFMpegAudioResampleClass)) -#define GST_IS_FFMPEGAUDIORESAMPLE(obj) \ - (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_FFMPEGAUDIORESAMPLE)) -#define GST_IS_FFMPEGAUDIORESAMPLE_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_FFMPEGAUDIORESAMPLE)) - -GType gst_ffmpegaudioresample_get_type (void); - -static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src", - GST_PAD_SRC, - GST_PAD_ALWAYS, - GST_STATIC_CAPS - ("audio/x-raw," - "format = (string) " GST_AUDIO_NE (S16) "," - "channels = (int) { 1 , 2 }, rate = (int) [1, MAX ]") - ); - -static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink", - GST_PAD_SINK, - GST_PAD_ALWAYS, - GST_STATIC_CAPS - ("audio/x-raw," - "format = (string) " GST_AUDIO_NE (S16) "," - "channels = (int) { 1 , 2 }, rate = (int) [1, MAX ]") - ); - -GST_BOILERPLATE (GstFFMpegAudioResample, gst_ffmpegaudioresample, - GstBaseTransform, GST_TYPE_BASE_TRANSFORM); - -static void gst_ffmpegaudioresample_finalize (GObject * object); - -static GstCaps *gst_ffmpegaudioresample_transform_caps (GstBaseTransform * - trans, GstPadDirection direction, GstCaps * caps); -static gboolean gst_ffmpegaudioresample_transform_size (GstBaseTransform * - trans, GstPadDirection direction, GstCaps * caps, gsize size, - GstCaps * othercaps, gsize * othersize); -static gboolean gst_ffmpegaudioresample_get_unit_size (GstBaseTransform * trans, - GstCaps * caps, gsize * size); -static gboolean gst_ffmpegaudioresample_set_caps (GstBaseTransform * trans, - GstCaps * incaps, GstCaps * outcaps); -static GstFlowReturn gst_ffmpegaudioresample_transform (GstBaseTransform * - trans, GstBuffer * inbuf, GstBuffer * outbuf); - -static void -gst_ffmpegaudioresample_base_init (gpointer g_class) -{ - GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); - - gst_element_class_add_static_pad_template (element_class, &src_factory); - gst_element_class_add_static_pad_template (element_class, &sink_factory); - gst_element_class_set_static_metadata (element_class, - "libav Audio resampling element", "Filter/Converter/Audio", - "Converts audio from one samplerate to another", - "Edward Hervey "); -} - -static void -gst_ffmpegaudioresample_class_init (GstFFMpegAudioResampleClass * klass) -{ - GObjectClass *gobject_class = G_OBJECT_CLASS (klass); - GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (klass); - - gobject_class->finalize = gst_ffmpegaudioresample_finalize; - - trans_class->transform_caps = - GST_DEBUG_FUNCPTR (gst_ffmpegaudioresample_transform_caps); - trans_class->get_unit_size = - GST_DEBUG_FUNCPTR (gst_ffmpegaudioresample_get_unit_size); - trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_ffmpegaudioresample_set_caps); - trans_class->transform = - GST_DEBUG_FUNCPTR (gst_ffmpegaudioresample_transform); - trans_class->transform_size = - GST_DEBUG_FUNCPTR (gst_ffmpegaudioresample_transform_size); - - trans_class->passthrough_on_same_caps = TRUE; -} - -static void -gst_ffmpegaudioresample_init (GstFFMpegAudioResample * resample, - GstFFMpegAudioResampleClass * klass) -{ - GstBaseTransform *trans = GST_BASE_TRANSFORM (resample); - - gst_pad_set_bufferalloc_function (trans->sinkpad, NULL); - - resample->res = NULL; -} - -static void -gst_ffmpegaudioresample_finalize (GObject * object) -{ - GstFFMpegAudioResample *resample = GST_FFMPEGAUDIORESAMPLE (object); - - if (resample->res != NULL) - audio_resample_close (resample->res); - - G_OBJECT_CLASS (parent_class)->finalize (object); -} - -static GstCaps * -gst_ffmpegaudioresample_transform_caps (GstBaseTransform * trans, - GstPadDirection direction, GstCaps * caps) -{ - GstCaps *retcaps; - GstStructure *struc; - - retcaps = gst_caps_copy (caps); - struc = gst_caps_get_structure (retcaps, 0); - gst_structure_set (struc, "rate", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL); - - GST_LOG_OBJECT (trans, "returning caps %" GST_PTR_FORMAT, retcaps); - - return retcaps; -} - -static gboolean -gst_ffmpegaudioresample_transform_size (GstBaseTransform * trans, - GstPadDirection direction, GstCaps * caps, gsize size, GstCaps * othercaps, - gsize * othersize) -{ - gint inrate, outrate; - gint inchanns, outchanns; - GstStructure *ins, *outs; - gboolean ret; - guint64 conv; - - ins = gst_caps_get_structure (caps, 0); - outs = gst_caps_get_structure (othercaps, 0); - - /* Get input/output sample rate and channels */ - ret = gst_structure_get_int (ins, "rate", &inrate); - ret &= gst_structure_get_int (ins, "channels", &inchanns); - ret &= gst_structure_get_int (outs, "rate", &outrate); - ret &= gst_structure_get_int (outs, "channels", &outchanns); - - if (!ret) - return FALSE; - - conv = gst_util_uint64_scale (size, outrate * outchanns, inrate * inchanns); - /* Adding padding to the output buffer size, since audio_resample's internal - * methods might write a bit further. */ - *othersize = (guint) conv + 64; - - GST_DEBUG_OBJECT (trans, "Transformed size from %d to %d", size, *othersize); - - return TRUE; -} - -static gboolean -gst_ffmpegaudioresample_get_unit_size (GstBaseTransform * trans, GstCaps * caps, - gsize * size) -{ - gint channels; - GstStructure *structure; - gboolean ret; - - g_assert (size); - - structure = gst_caps_get_structure (caps, 0); - ret = gst_structure_get_int (structure, "channels", &channels); - g_return_val_if_fail (ret, FALSE); - - *size = 2 * channels; - - return TRUE; -} - -static gboolean -gst_ffmpegaudioresample_set_caps (GstBaseTransform * trans, GstCaps * incaps, - GstCaps * outcaps) -{ - GstFFMpegAudioResample *resample = GST_FFMPEGAUDIORESAMPLE (trans); - GstStructure *instructure = gst_caps_get_structure (incaps, 0); - GstStructure *outstructure = gst_caps_get_structure (outcaps, 0); - - GST_LOG_OBJECT (resample, "incaps:%" GST_PTR_FORMAT, incaps); - - GST_LOG_OBJECT (resample, "outcaps:%" GST_PTR_FORMAT, outcaps); - - if (!gst_structure_get_int (instructure, "channels", &resample->in_channels)) - return FALSE; - if (!gst_structure_get_int (instructure, "rate", &resample->in_rate)) - return FALSE; - - if (!gst_structure_get_int (outstructure, "channels", - &resample->out_channels)) - return FALSE; - if (!gst_structure_get_int (outstructure, "rate", &resample->out_rate)) - return FALSE; - - /* FIXME : Allow configuring the various resampling properties */ -#define TAPS 16 - resample->res = - av_audio_resample_init (resample->out_channels, resample->in_channels, - resample->out_rate, resample->in_rate, - AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16, TAPS, 10, 0, 0.8); - if (resample->res == NULL) - return FALSE; - - return TRUE; -} - -static GstFlowReturn -gst_ffmpegaudioresample_transform (GstBaseTransform * trans, GstBuffer * inbuf, - GstBuffer * outbuf) -{ - GstFFMpegAudioResample *resample = GST_FFMPEGAUDIORESAMPLE (trans); - gint nbsamples; - gint ret; - guint8 *indata, *outdata; - gsize insize, outsize; - - gst_buffer_copy_into (outbuf, inbuf, GST_BUFFER_COPY_TIMESTAMPS, 0, -1); - - indata = gst_buffer_map (inbuf, &insize, NULL, GST_MAP_READ); - nbsamples = insize / (2 * resample->in_channels); - - GST_LOG_OBJECT (resample, "input buffer duration:%" GST_TIME_FORMAT, - GST_TIME_ARGS (GST_BUFFER_DURATION (inbuf))); - - outdata = gst_buffer_map (outbuf, &outsize, NULL, GST_MAP_WRITE); - GST_DEBUG_OBJECT (resample, - "audio_resample(ctx, output:%p [size:%d], input:%p [size:%d], nbsamples:%d", - outdata, outsize, indata, insize, nbsamples); - - ret = - audio_resample (resample->res, (short *) outdata, (short *) indata, - nbsamples); - - GST_DEBUG_OBJECT (resample, "audio_resample returned %d", ret); - - GST_BUFFER_DURATION (outbuf) = gst_util_uint64_scale (ret, GST_SECOND, - resample->out_rate); - - outsize = ret * 2 * resample->out_channels; - gst_buffer_unmap (outbuf, outdata, outsize); - gst_buffer_unmap (inbuf, indata, insize); - - GST_LOG_OBJECT (resample, "Output buffer duration:%" GST_TIME_FORMAT, - GST_TIME_ARGS (GST_BUFFER_DURATION (outbuf))); - - return GST_FLOW_OK; -} - -gboolean -gst_ffmpegaudioresample_register (GstPlugin * plugin) -{ - return gst_element_register (plugin, "avaudioresample", - GST_RANK_NONE, GST_TYPE_FFMPEGAUDIORESAMPLE); -} diff --git a/ext/libav/gstavscale.c b/ext/libav/gstavscale.c deleted file mode 100644 index a6d6a18..0000000 --- a/ext/libav/gstavscale.c +++ /dev/null @@ -1,401 +0,0 @@ -/* GStreamer - * Copyright (C) <1999> Erik Walthinsen - * This file: - * Copyright (C) 2005 Luca Ognibene - * Copyright (C) 2006 Martin Zlomek - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, - * Boston, MA 02110-1301, USA. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include - -#include -#include -#include - -#include "gstffmpeg.h" -#include "gstffmpegcodecmap.h" - -typedef struct _GstFFMpegScale -{ - GstBaseTransform element; - - GstPad *sinkpad, *srcpad; - - gint in_width, in_height; - gint out_width, out_height; - - enum PixelFormat pixfmt; - - ImgReSampleContext *res; -} GstFFMpegScale; - -typedef struct _GstFFMpegScaleClass -{ - GstBaseTransformClass parent_class; -} GstFFMpegScaleClass; - -#define GST_TYPE_FFMPEGSCALE \ - (gst_ffmpegscale_get_type()) -#define GST_FFMPEGSCALE(obj) \ - (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_FFMPEGSCALE,GstFFMpegScale)) -#define GST_FFMPEGSCALE_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_FFMPEGSCALE,GstFFMpegScaleClass)) -#define GST_IS_FFMPEGSCALE(obj) \ - (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_FFMPEGSCALE)) -#define GST_IS_FFMPEGSCALE_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_FFMPEGSCALE)) - -static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src", - GST_PAD_SRC, - GST_PAD_ALWAYS, - GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420")) - ); - -static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink", - GST_PAD_SINK, - GST_PAD_ALWAYS, - GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420")) - ); - -GST_BOILERPLATE (GstFFMpegScale, gst_ffmpegscale, GstBaseTransform, - GST_TYPE_BASE_TRANSFORM); - -static void gst_ffmpegscale_finalize (GObject * object); - -static GstCaps *gst_ffmpegscale_transform_caps (GstBaseTransform * trans, - GstPadDirection direction, GstCaps * caps); -static void gst_ffmpegscale_fixate_caps (GstBaseTransform * trans, - GstPadDirection direction, GstCaps * caps, GstCaps * othercaps); -static gboolean gst_ffmpegscale_get_unit_size (GstBaseTransform * trans, - GstCaps * caps, guint * size); -static gboolean gst_ffmpegscale_set_caps (GstBaseTransform * trans, - GstCaps * incaps, GstCaps * outcaps); -static GstFlowReturn gst_ffmpegscale_transform (GstBaseTransform * trans, - GstBuffer * inbuf, GstBuffer * outbuf); - -static gboolean gst_ffmpegscale_handle_src_event (GstPad * pad, - GstEvent * event); - -static void -gst_ffmpegscale_base_init (gpointer g_class) -{ - GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); - - gst_element_class_add_static_pad_template (element_class, &src_factory); - gst_element_class_add_static_pad_template (element_class, &sink_factory); - gst_element_class_set_static_metadata (element_class, "libav Scale element", - "Filter/Converter/Video/Scaler", - "Converts video from one resolution to another", - "Luca Ognibene "); -} - -static void -gst_ffmpegscale_class_init (GstFFMpegScaleClass * klass) -{ - GObjectClass *gobject_class = G_OBJECT_CLASS (klass); - GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (klass); - - gobject_class->finalize = gst_ffmpegscale_finalize; - - trans_class->transform_caps = - GST_DEBUG_FUNCPTR (gst_ffmpegscale_transform_caps); - trans_class->fixate_caps = GST_DEBUG_FUNCPTR (gst_ffmpegscale_fixate_caps); - trans_class->get_unit_size = - GST_DEBUG_FUNCPTR (gst_ffmpegscale_get_unit_size); - trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_ffmpegscale_set_caps); - trans_class->transform = GST_DEBUG_FUNCPTR (gst_ffmpegscale_transform); - - trans_class->passthrough_on_same_caps = TRUE; -} - -static void -gst_ffmpegscale_init (GstFFMpegScale * scale, GstFFMpegScaleClass * klass) -{ - GstBaseTransform *trans = GST_BASE_TRANSFORM (scale); - - gst_pad_set_event_function (trans->srcpad, gst_ffmpegscale_handle_src_event); - - scale->pixfmt = AV_PIX_FMT_NB; - scale->res = NULL; -} - -static void -gst_ffmpegscale_finalize (GObject * object) -{ - GstFFMpegScale *scale = GST_FFMPEGSCALE (object); - - if (scale->res != NULL) - img_resample_close (scale->res); - - G_OBJECT_CLASS (parent_class)->finalize (object); -} - -static GstCaps * -gst_ffmpegscale_transform_caps (GstBaseTransform * trans, - GstPadDirection direction, GstCaps * caps) -{ - GstCaps *retcaps; - int i; - - retcaps = gst_caps_copy (caps); - - for (i = 0; i < gst_caps_get_size (retcaps); i++) { - GstStructure *structure = gst_caps_get_structure (retcaps, i); - - gst_structure_set (structure, - "width", GST_TYPE_INT_RANGE, 16, 4096, - "height", GST_TYPE_INT_RANGE, 16, 4096, NULL); - gst_structure_remove_field (structure, "pixel-aspect-ratio"); - } - - return retcaps; -} - -static void -gst_ffmpegscale_fixate_caps (GstBaseTransform * trans, - GstPadDirection direction, GstCaps * caps, GstCaps * othercaps) -{ - GstStructure *instructure = gst_caps_get_structure (caps, 0); - GstStructure *outstructure = gst_caps_get_structure (othercaps, 0); - const GValue *in_par, *out_par; - - in_par = gst_structure_get_value (instructure, "pixel-aspect-ratio"); - out_par = gst_structure_get_value (outstructure, "pixel-aspect-ratio"); - - if (in_par && out_par) { - GValue out_ratio = { 0, }; /* w/h of output video */ - int in_w, in_h, in_par_n, in_par_d, out_par_n, out_par_d; - int count = 0, w = 0, h = 0, num, den; - - /* if both width and height are already fixed, we can't do anything - * about it anymore */ - if (gst_structure_get_int (outstructure, "width", &w)) - ++count; - if (gst_structure_get_int (outstructure, "height", &h)) - ++count; - if (count == 2) { - GST_DEBUG_OBJECT (trans, "dimensions already set to %dx%d, not fixating", - w, h); - return; - } - - gst_structure_get_int (instructure, "width", &in_w); - gst_structure_get_int (instructure, "height", &in_h); - in_par_n = gst_value_get_fraction_numerator (in_par); - in_par_d = gst_value_get_fraction_denominator (in_par); - out_par_n = gst_value_get_fraction_numerator (out_par); - out_par_d = gst_value_get_fraction_denominator (out_par); - - g_value_init (&out_ratio, GST_TYPE_FRACTION); - gst_value_set_fraction (&out_ratio, in_w * in_par_n * out_par_d, - in_h * in_par_d * out_par_n); - num = gst_value_get_fraction_numerator (&out_ratio); - den = gst_value_get_fraction_denominator (&out_ratio); - GST_DEBUG_OBJECT (trans, - "scaling input with %dx%d and PAR %d/%d to output PAR %d/%d", - in_w, in_h, in_par_n, in_par_d, out_par_n, out_par_d); - GST_DEBUG_OBJECT (trans, "resulting output should respect ratio of %d/%d", - num, den); - - /* now find a width x height that respects this display ratio. - * prefer those that have one of w/h the same as the incoming video - * using wd / hd = num / den */ - - /* start with same height, because of interlaced video */ - /* check hd / den is an integer scale factor, and scale wd with the PAR */ - if (in_h % den == 0) { - GST_DEBUG_OBJECT (trans, "keeping video height"); - h = in_h; - w = h * num / den; - } else if (in_w % num == 0) { - GST_DEBUG_OBJECT (trans, "keeping video width"); - w = in_w; - h = w * den / num; - } else { - GST_DEBUG_OBJECT (trans, "approximating but keeping video height"); - h = in_h; - w = h * num / den; - } - GST_DEBUG_OBJECT (trans, "scaling to %dx%d", w, h); - - /* now fixate */ - gst_structure_fixate_field_nearest_int (outstructure, "width", w); - gst_structure_fixate_field_nearest_int (outstructure, "height", h); - } else { - gint width, height; - - if (gst_structure_get_int (instructure, "width", &width)) { - if (gst_structure_has_field (outstructure, "width")) - gst_structure_fixate_field_nearest_int (outstructure, "width", width); - } - if (gst_structure_get_int (instructure, "height", &height)) { - if (gst_structure_has_field (outstructure, "height")) - gst_structure_fixate_field_nearest_int (outstructure, "height", height); - } - } -} - -static gboolean -gst_ffmpegscale_get_unit_size (GstBaseTransform * trans, GstCaps * caps, - guint * size) -{ - GstStructure *structure = gst_caps_get_structure (caps, 0); - gint width, height; - AVCodecContext *ctx; - - if (!gst_structure_get_int (structure, "width", &width)) - return FALSE; - if (!gst_structure_get_int (structure, "height", &height)) - return FALSE; - - ctx = avcodec_alloc_context (); - ctx->width = width; - ctx->height = height; - ctx->pix_fmt = AV_PIX_FMT_NB; - gst_ffmpeg_caps_with_codectype (AV_CODEC_TYPE_VIDEO, caps, ctx); - if (ctx->pix_fmt == AV_PIX_FMT_NB) { - av_free (ctx); - return FALSE; - } - - *size = - (guint) av_image_get_buffer_size (pix->pix_fmt, ctx->width, ctx->height, - 1); - - av_free (ctx); - - return TRUE; -} - -static gboolean -gst_ffmpegscale_set_caps (GstBaseTransform * trans, GstCaps * incaps, - GstCaps * outcaps) -{ - GstFFMpegScale *scale = GST_FFMPEGSCALE (trans); - GstStructure *instructure = gst_caps_get_structure (incaps, 0); - GstStructure *outstructure = gst_caps_get_structure (outcaps, 0); - gint par_num, par_den; - AVCodecContext *ctx; - - if (!gst_structure_get_int (instructure, "width", &scale->in_width)) - return FALSE; - if (!gst_structure_get_int (instructure, "height", &scale->in_height)) - return FALSE; - - if (!gst_structure_get_int (outstructure, "width", &scale->out_width)) - return FALSE; - if (!gst_structure_get_int (outstructure, "height", &scale->out_height)) - return FALSE; - - if (gst_structure_get_fraction (instructure, "pixel-aspect-ratio", - &par_num, &par_den)) { - gst_structure_set (outstructure, - "pixel-aspect-ratio", GST_TYPE_FRACTION, - par_num * scale->in_width / scale->out_width, - par_den * scale->in_height / scale->out_height, NULL); - } - - ctx = avcodec_alloc_context (); - ctx->width = scale->in_width; - ctx->height = scale->in_height; - ctx->pix_fmt = AV_PIX_FMT_NB; - gst_ffmpeg_caps_with_codectype (AV_CODEC_TYPE_VIDEO, incaps, ctx); - if (ctx->pix_fmt == AV_PIX_FMT_NB) { - av_free (ctx); - return FALSE; - } - - scale->pixfmt = ctx->pix_fmt; - - av_free (ctx); - - scale->res = img_resample_init (scale->out_width, scale->out_height, - scale->in_width, scale->in_height); - - return TRUE; -} - -static GstFlowReturn -gst_ffmpegscale_transform (GstBaseTransform * trans, GstBuffer * inbuf, - GstBuffer * outbuf) -{ - GstFFMpegScale *scale = GST_FFMPEGSCALE (trans); - AVPicture in_frame, out_frame; - - gst_buffer_copy_metadata (outbuf, inbuf, GST_BUFFER_COPY_TIMESTAMPS); - - gst_ffmpeg_avpicture_fill (&in_frame, - GST_BUFFER_DATA (inbuf), - scale->pixfmt, scale->in_width, scale->in_height); - - gst_ffmpeg_avpicture_fill (&out_frame, - GST_BUFFER_DATA (outbuf), - scale->pixfmt, scale->out_width, scale->out_height); - - img_resample (scale->res, &out_frame, &in_frame); - - return GST_FLOW_OK; -} - -static gboolean -gst_ffmpegscale_handle_src_event (GstPad * pad, GstEvent * event) -{ - GstFFMpegScale *scale; - GstStructure *structure; - gdouble pointer; - gboolean res; - - scale = GST_FFMPEGSCALE (gst_pad_get_parent (pad)); - - switch (GST_EVENT_TYPE (event)) { - case GST_EVENT_NAVIGATION: - event = - GST_EVENT (gst_mini_object_make_writable (GST_MINI_OBJECT (event))); - - structure = (GstStructure *) gst_event_get_structure (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); - } - 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); - } - break; - default: - break; - } - - res = gst_pad_event_default (pad, event); - - gst_object_unref (scale); - - return res; -} - -gboolean -gst_ffmpegscale_register (GstPlugin * plugin) -{ - return gst_element_register (plugin, "avvideoscale", - GST_RANK_NONE, GST_TYPE_FFMPEGSCALE); -} -- 2.7.4