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-rw-r--r--media/ffvpx/libavcodec/options.c215
1 files changed, 215 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/options.c b/media/ffvpx/libavcodec/options.c
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+/*
+ * Copyright (c) 2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Options definition for AVCodecContext.
+ */
+
+#include "config_components.h"
+
+#include "avcodec.h"
+#include "codec_internal.h"
+#include "libavutil/avassert.h"
+#include "libavutil/internal.h"
+#include "libavutil/mem.h"
+#include "libavutil/opt.h"
+#include <string.h>
+
+FF_DISABLE_DEPRECATION_WARNINGS
+#include "options_table.h"
+FF_ENABLE_DEPRECATION_WARNINGS
+
+static const char* context_to_name(void* ptr) {
+ AVCodecContext *avc= ptr;
+
+ if (avc && avc->codec)
+ return avc->codec->name;
+ else
+ return "NULL";
+}
+
+static void *codec_child_next(void *obj, void *prev)
+{
+ AVCodecContext *s = obj;
+ if (!prev && s->codec && s->codec->priv_class && s->priv_data)
+ return s->priv_data;
+ return NULL;
+}
+
+static const AVClass *codec_child_class_iterate(void **iter)
+{
+ const AVCodec *c;
+ /* find next codec with priv options */
+ while (c = av_codec_iterate(iter))
+ if (c->priv_class)
+ return c->priv_class;
+ return NULL;
+}
+
+static AVClassCategory get_category(void *ptr)
+{
+ AVCodecContext* avctx = ptr;
+ if (avctx->codec && av_codec_is_decoder(avctx->codec))
+ return AV_CLASS_CATEGORY_DECODER;
+ else
+ return AV_CLASS_CATEGORY_ENCODER;
+}
+
+static const AVClass av_codec_context_class = {
+ .class_name = "AVCodecContext",
+ .item_name = context_to_name,
+ .option = avcodec_options,
+ .version = LIBAVUTIL_VERSION_INT,
+ .log_level_offset_offset = offsetof(AVCodecContext, log_level_offset),
+ .child_next = codec_child_next,
+ .child_class_iterate = codec_child_class_iterate,
+ .category = AV_CLASS_CATEGORY_ENCODER,
+ .get_category = get_category,
+};
+
+static int init_context_defaults(AVCodecContext *s, const AVCodec *codec)
+{
+ const FFCodec *const codec2 = ffcodec(codec);
+ int flags=0;
+ memset(s, 0, sizeof(AVCodecContext));
+
+ s->av_class = &av_codec_context_class;
+
+ s->codec_type = codec ? codec->type : AVMEDIA_TYPE_UNKNOWN;
+ if (codec) {
+ s->codec = codec;
+ s->codec_id = codec->id;
+ }
+
+ if(s->codec_type == AVMEDIA_TYPE_AUDIO)
+ flags= AV_OPT_FLAG_AUDIO_PARAM;
+ else if(s->codec_type == AVMEDIA_TYPE_VIDEO)
+ flags= AV_OPT_FLAG_VIDEO_PARAM;
+ else if(s->codec_type == AVMEDIA_TYPE_SUBTITLE)
+ flags= AV_OPT_FLAG_SUBTITLE_PARAM;
+ av_opt_set_defaults2(s, flags, flags);
+
+ av_channel_layout_uninit(&s->ch_layout);
+
+ s->time_base = (AVRational){0,1};
+ s->framerate = (AVRational){ 0, 1 };
+ s->pkt_timebase = (AVRational){ 0, 1 };
+ s->get_buffer2 = avcodec_default_get_buffer2;
+ s->get_format = avcodec_default_get_format;
+ s->get_encode_buffer = avcodec_default_get_encode_buffer;
+ s->execute = avcodec_default_execute;
+ s->execute2 = avcodec_default_execute2;
+ s->sample_aspect_ratio = (AVRational){0,1};
+ s->ch_layout.order = AV_CHANNEL_ORDER_UNSPEC;
+ s->pix_fmt = AV_PIX_FMT_NONE;
+ s->sw_pix_fmt = AV_PIX_FMT_NONE;
+ s->sample_fmt = AV_SAMPLE_FMT_NONE;
+
+#if FF_API_REORDERED_OPAQUE
+FF_DISABLE_DEPRECATION_WARNINGS
+ s->reordered_opaque = AV_NOPTS_VALUE;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+ if(codec && codec2->priv_data_size){
+ s->priv_data = av_mallocz(codec2->priv_data_size);
+ if (!s->priv_data)
+ return AVERROR(ENOMEM);
+ if(codec->priv_class){
+ *(const AVClass**)s->priv_data = codec->priv_class;
+ av_opt_set_defaults(s->priv_data);
+ }
+ }
+ if (codec && codec2->defaults) {
+ int ret;
+ const FFCodecDefault *d = codec2->defaults;
+ while (d->key) {
+ ret = av_opt_set(s, d->key, d->value, 0);
+ av_assert0(ret >= 0);
+ d++;
+ }
+ }
+ return 0;
+}
+
+AVCodecContext *avcodec_alloc_context3(const AVCodec *codec)
+{
+ AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));
+
+ if (!avctx)
+ return NULL;
+
+ if (init_context_defaults(avctx, codec) < 0) {
+ av_free(avctx);
+ return NULL;
+ }
+
+ return avctx;
+}
+
+void avcodec_free_context(AVCodecContext **pavctx)
+{
+ AVCodecContext *avctx = *pavctx;
+
+ if (!avctx)
+ return;
+
+ avcodec_close(avctx);
+
+ av_freep(&avctx->extradata);
+ av_freep(&avctx->subtitle_header);
+ av_freep(&avctx->intra_matrix);
+ av_freep(&avctx->inter_matrix);
+ av_freep(&avctx->rc_override);
+ av_channel_layout_uninit(&avctx->ch_layout);
+
+ av_freep(pavctx);
+}
+
+const AVClass *avcodec_get_class(void)
+{
+ return &av_codec_context_class;
+}
+
+#define SROFFSET(x) offsetof(AVSubtitleRect,x)
+
+static const AVOption subtitle_rect_options[]={
+{"x", "", SROFFSET(x), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"y", "", SROFFSET(y), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"w", "", SROFFSET(w), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"h", "", SROFFSET(h), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"type", "", SROFFSET(type), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"flags", "", SROFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, 0, 1, 0, "flags"},
+{"forced", "", SROFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, 0, 1, 0},
+{NULL},
+};
+
+static const AVClass av_subtitle_rect_class = {
+ .class_name = "AVSubtitleRect",
+ .item_name = NULL,
+ .option = subtitle_rect_options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+const AVClass *avcodec_get_subtitle_rect_class(void)
+{
+ return &av_subtitle_rect_class;
+}
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