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@@ -1,468 +0,0 @@
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-/*
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- * Copyright (c) 2015 John R. Bradley <[email protected]>
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- *
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- * Permission to use, copy, modify, and distribute this software for any
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- * purpose with or without fee is hereby granted, provided that the above
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- * copyright notice and this permission notice appear in all copies.
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- *
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- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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- */
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-
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-#include "ff-util.h"
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-
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-#ifdef _MSC_VER
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-#pragma warning(push)
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-#pragma warning(disable : 4244)
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-#pragma warning(disable : 4204)
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-#endif
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-
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-#include <libavcodec/avcodec.h>
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-#include <libavdevice/avdevice.h>
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-#include <libavformat/avformat.h>
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-#include <libavutil/log.h>
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-
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-#ifdef _MSC_VER
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-#pragma warning(pop)
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-#endif
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-
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-#include <stdbool.h>
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-
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-struct ff_format_desc {
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- const char *name;
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- const char *long_name;
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- const char *mime_type;
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- const char *extensions;
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- enum AVCodecID audio_codec;
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- enum AVCodecID video_codec;
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- const struct AVCodecTag *const *codec_tags;
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- const struct ff_format_desc *next;
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-};
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-
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-struct ff_codec_desc {
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- const char *name;
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- const char *long_name;
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- int id;
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- bool alias;
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- const char *base_name;
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- enum ff_codec_type type;
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- const struct ff_codec_desc *next;
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-};
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-
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-void ff_init()
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-{
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- avformat_network_init();
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-}
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-
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-const char *ff_codec_name_from_id(int codec_id)
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-{
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- const AVCodec *codec = avcodec_find_encoder(codec_id);
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- if (codec != NULL)
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- return codec->name;
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- else
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- return NULL;
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-}
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-
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-static bool get_codecs(const AVCodecDescriptor ***descs, unsigned int *size)
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-{
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- const AVCodecDescriptor *desc = NULL;
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- const AVCodecDescriptor **codecs;
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- unsigned int codec_count = 0;
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- unsigned int i = 0;
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-
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- while ((desc = avcodec_descriptor_next(desc)) != NULL)
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- codec_count++;
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-
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- codecs = av_calloc(codec_count, sizeof(AVCodecDescriptor *));
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-
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- if (codecs == NULL) {
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- av_log(NULL, AV_LOG_ERROR,
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- "unable to allocate sorted codec "
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- "array with size %d",
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- codec_count);
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- return false;
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- }
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-
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- while ((desc = avcodec_descriptor_next(desc)) != NULL)
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- codecs[i++] = desc;
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-
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- *size = codec_count;
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- *descs = codecs;
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- return true;
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-}
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-
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-static const AVCodec *next_codec_for_id(enum AVCodecID id, const AVCodec *prev)
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-{
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- const AVCodec *cur = NULL;
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- void *i = 0;
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- bool found_prev = false;
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-
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- while ((cur = av_codec_iterate(&i)) != NULL) {
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- if (cur->id == id && av_codec_is_encoder(cur)) {
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- if (!prev) {
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- return cur;
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- } else if (!found_prev) {
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- if (cur == prev) {
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- found_prev = true;
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- }
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- } else {
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- return cur;
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- }
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- }
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- }
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-
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- return NULL;
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-}
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-
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-static void add_codec_to_list(const struct ff_format_desc *format_desc,
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- struct ff_codec_desc **first,
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- struct ff_codec_desc **current, enum AVCodecID id,
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- const AVCodec *codec, bool ignore_compatability)
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-{
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- if (codec == NULL)
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- codec = avcodec_find_encoder(id);
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-
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- // No codec, or invalid id
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- if (codec == NULL)
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- return;
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-
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- // Not an encoding codec
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- if (!av_codec_is_encoder(codec))
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- return;
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-
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- if (!ignore_compatability) {
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- // Format doesn't support this codec
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- unsigned int tag =
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- av_codec_get_tag(format_desc->codec_tags, codec->id);
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- if (tag == 0)
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- return;
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- }
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-
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- struct ff_codec_desc *d = av_mallocz(sizeof(struct ff_codec_desc));
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-
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- d->name = codec->name;
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- d->long_name = codec->long_name;
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- d->id = codec->id;
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- const AVCodec *base_codec = avcodec_find_encoder(codec->id);
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- if (strcmp(base_codec->name, codec->name) != 0) {
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- d->alias = true;
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- d->base_name = base_codec->name;
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- }
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-
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- switch (codec->type) {
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- case AVMEDIA_TYPE_AUDIO:
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- d->type = FF_CODEC_AUDIO;
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- break;
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- case AVMEDIA_TYPE_VIDEO:
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- d->type = FF_CODEC_VIDEO;
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- break;
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- default:
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- d->type = FF_CODEC_UNKNOWN;
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- }
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-
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- if (*current != NULL)
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- (*current)->next = d;
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- else
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- *first = d;
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-
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- *current = d;
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-}
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-
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-static void get_codecs_for_id(const struct ff_format_desc *format_desc,
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- struct ff_codec_desc **first,
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- struct ff_codec_desc **current, enum AVCodecID id,
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- bool ignore_compatability)
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-{
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- const AVCodec *codec = NULL;
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- while ((codec = next_codec_for_id(id, codec)) != NULL)
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- add_codec_to_list(format_desc, first, current, codec->id, codec,
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- ignore_compatability);
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-}
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-
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-const struct ff_codec_desc *
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-ff_codec_supported(const struct ff_format_desc *format_desc,
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- bool ignore_compatability)
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-{
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- const AVCodecDescriptor **codecs;
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- unsigned int size;
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- unsigned int i;
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- struct ff_codec_desc *current = NULL;
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- struct ff_codec_desc *first = NULL;
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-
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- if (!get_codecs(&codecs, &size))
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- return NULL;
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-
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- for (i = 0; i < size; i++) {
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- const AVCodecDescriptor *codec = codecs[i];
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- get_codecs_for_id(format_desc, &first, ¤t, codec->id,
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- ignore_compatability);
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- }
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-
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- av_free((void *)codecs);
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-
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- return first;
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-}
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-
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-const char *ff_codec_desc_name(const struct ff_codec_desc *codec_desc)
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-{
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- if (codec_desc != NULL)
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- return codec_desc->name;
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- else
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- return NULL;
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-}
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-
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-const char *ff_codec_desc_long_name(const struct ff_codec_desc *codec_desc)
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-{
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- if (codec_desc != NULL)
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- return codec_desc->long_name;
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- else
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- return NULL;
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-}
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-
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-bool ff_codec_desc_is_alias(const struct ff_codec_desc *codec_desc)
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-{
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- if (codec_desc != NULL)
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- return codec_desc->alias;
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- else
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- return false;
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-}
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-
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-const char *ff_codec_desc_base_name(const struct ff_codec_desc *codec_desc)
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-{
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- if (codec_desc != NULL)
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- return codec_desc->base_name;
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- else
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- return NULL;
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-}
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-
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-enum ff_codec_type ff_codec_desc_type(const struct ff_codec_desc *codec_desc)
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-{
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- if (codec_desc != NULL)
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- return codec_desc->type;
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- else
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- return FF_CODEC_UNKNOWN;
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-}
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-
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-const struct ff_codec_desc *
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-ff_codec_desc_next(const struct ff_codec_desc *codec_desc)
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-{
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- if (codec_desc != NULL)
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- return codec_desc->next;
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- else
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- return NULL;
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-}
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-
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-int ff_codec_desc_id(const struct ff_codec_desc *codec_desc)
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-{
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- if (codec_desc != NULL)
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- return codec_desc->id;
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- else
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- return AV_CODEC_ID_NONE;
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-}
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-
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-void ff_codec_desc_free(const struct ff_codec_desc *codec_desc)
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-{
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- const struct ff_codec_desc *desc = codec_desc;
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- while (desc != NULL) {
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- const struct ff_codec_desc *next = desc->next;
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- av_free((void *)desc);
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- desc = next;
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- }
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-}
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-
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-static inline bool is_output_device(const AVClass *avclass)
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-{
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- if (!avclass)
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- return 0;
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-
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- switch (avclass->category) {
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- case AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT:
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- case AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT:
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- case AV_CLASS_CATEGORY_DEVICE_OUTPUT:
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- return true;
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- default:
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- return false;
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- }
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-}
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-
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-const struct ff_format_desc *ff_format_supported()
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-{
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- const AVOutputFormat *output_format = NULL;
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- struct ff_format_desc *desc = NULL;
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- struct ff_format_desc *current = NULL;
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-
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- void *i = 0;
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- while ((output_format = av_muxer_iterate(&i)) != NULL) {
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- struct ff_format_desc *d;
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- if (is_output_device(output_format->priv_class))
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- continue;
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-
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- d = av_mallocz(sizeof(struct ff_format_desc));
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-
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- d->audio_codec = output_format->audio_codec;
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- d->video_codec = output_format->video_codec;
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- d->name = output_format->name;
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- d->long_name = output_format->long_name;
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- d->mime_type = output_format->mime_type;
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- d->extensions = output_format->extensions;
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- d->codec_tags = output_format->codec_tag;
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-
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- if (current != NULL) {
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- current->next = d;
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- current = d;
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- } else {
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- desc = current = d;
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- }
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- }
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-
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- return desc;
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-}
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-
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-const char *ff_format_desc_name(const struct ff_format_desc *format_desc)
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-{
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- if (format_desc != NULL)
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- return format_desc->name;
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- else
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- return NULL;
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-}
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-
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|
-const char *ff_format_desc_long_name(const struct ff_format_desc *format_desc)
|
|
|
|
|
-{
|
|
|
|
|
- if (format_desc != NULL)
|
|
|
|
|
- return format_desc->long_name;
|
|
|
|
|
- else
|
|
|
|
|
- return NULL;
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
-const char *ff_format_desc_mime_type(const struct ff_format_desc *format_desc)
|
|
|
|
|
-{
|
|
|
|
|
- if (format_desc != NULL)
|
|
|
|
|
- return format_desc->mime_type;
|
|
|
|
|
- else
|
|
|
|
|
- return NULL;
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
-const char *ff_format_desc_extensions(const struct ff_format_desc *format_desc)
|
|
|
|
|
-{
|
|
|
|
|
- if (format_desc != NULL)
|
|
|
|
|
- return format_desc->extensions;
|
|
|
|
|
- else
|
|
|
|
|
- return NULL;
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
-bool ff_format_desc_has_audio(const struct ff_format_desc *format_desc)
|
|
|
|
|
-{
|
|
|
|
|
- if (format_desc != NULL)
|
|
|
|
|
- return format_desc->audio_codec != AV_CODEC_ID_NONE;
|
|
|
|
|
- else
|
|
|
|
|
- return false;
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
-bool ff_format_desc_has_video(const struct ff_format_desc *format_desc)
|
|
|
|
|
-{
|
|
|
|
|
- if (format_desc != NULL)
|
|
|
|
|
- return format_desc->video_codec != AV_CODEC_ID_NONE;
|
|
|
|
|
- else
|
|
|
|
|
- return false;
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
-int ff_format_desc_audio(const struct ff_format_desc *format_desc)
|
|
|
|
|
-{
|
|
|
|
|
- if (format_desc != NULL)
|
|
|
|
|
- return format_desc->audio_codec;
|
|
|
|
|
- else
|
|
|
|
|
- return false;
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
-int ff_format_desc_video(const struct ff_format_desc *format_desc)
|
|
|
|
|
-{
|
|
|
|
|
- if (format_desc != NULL)
|
|
|
|
|
- return format_desc->video_codec;
|
|
|
|
|
- else
|
|
|
|
|
- return false;
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
-const struct ff_format_desc *
|
|
|
|
|
-ff_format_desc_next(const struct ff_format_desc *format_desc)
|
|
|
|
|
-{
|
|
|
|
|
- if (format_desc != NULL)
|
|
|
|
|
- return format_desc->next;
|
|
|
|
|
- else
|
|
|
|
|
- return NULL;
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
-static const char *get_encoder_name(const struct ff_format_desc *format_desc,
|
|
|
|
|
- enum AVCodecID codec_id)
|
|
|
|
|
-{
|
|
|
|
|
- const AVCodec *codec = avcodec_find_encoder(codec_id);
|
|
|
|
|
- if (codec == NULL && codec_id == AV_CODEC_ID_NONE)
|
|
|
|
|
- return NULL;
|
|
|
|
|
- else if (codec == NULL)
|
|
|
|
|
- return format_desc->name;
|
|
|
|
|
- else
|
|
|
|
|
- return codec->name;
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
-const char *
|
|
|
|
|
-ff_format_desc_get_default_name(const struct ff_format_desc *format_desc,
|
|
|
|
|
- enum ff_codec_type codec_type)
|
|
|
|
|
-{
|
|
|
|
|
- switch (codec_type) {
|
|
|
|
|
- case FF_CODEC_AUDIO:
|
|
|
|
|
- return get_encoder_name(format_desc, format_desc->audio_codec);
|
|
|
|
|
- case FF_CODEC_VIDEO:
|
|
|
|
|
- return get_encoder_name(format_desc, format_desc->video_codec);
|
|
|
|
|
- default:
|
|
|
|
|
- return NULL;
|
|
|
|
|
- }
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
-void ff_format_desc_free(const struct ff_format_desc *format_desc)
|
|
|
|
|
-{
|
|
|
|
|
- const struct ff_format_desc *desc = format_desc;
|
|
|
|
|
- while (desc != NULL) {
|
|
|
|
|
- const struct ff_format_desc *next = desc->next;
|
|
|
|
|
- av_free((void *)desc);
|
|
|
|
|
- desc = next;
|
|
|
|
|
- }
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
-
|
|
|
|
|
-bool ff_format_codec_compatible(const char *codec, const char *format)
|
|
|
|
|
-{
|
|
|
|
|
- if (!codec || !format)
|
|
|
|
|
- return false;
|
|
|
|
|
-
|
|
|
|
|
-#if LIBAVFORMAT_VERSION_INT < AV_VERSION_INT(59, 0, 100)
|
|
|
|
|
- AVOutputFormat *output_format;
|
|
|
|
|
-#else
|
|
|
|
|
- const AVOutputFormat *output_format;
|
|
|
|
|
-#endif
|
|
|
|
|
- output_format = av_guess_format(format, NULL, NULL);
|
|
|
|
|
- if (!output_format)
|
|
|
|
|
- return false;
|
|
|
|
|
-
|
|
|
|
|
- const AVCodecDescriptor *codec_desc = avcodec_descriptor_get_by_name(codec);
|
|
|
|
|
- if (!codec_desc)
|
|
|
|
|
- return false;
|
|
|
|
|
-
|
|
|
|
|
-#if LIBAVFORMAT_VERSION_INT < AV_VERSION_INT(60, 0, 100)
|
|
|
|
|
- return avformat_query_codec(output_format, codec_desc->id, FF_COMPLIANCE_EXPERIMENTAL) == 1;
|
|
|
|
|
-#else
|
|
|
|
|
- return avformat_query_codec(output_format, codec_desc->id, FF_COMPLIANCE_NORMAL) == 1;
|
|
|
|
|
-#endif
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
-bool ff_supports_pcm_in_mp4()
|
|
|
|
|
-{
|
|
|
|
|
-#if LIBAVFORMAT_VERSION_INT < AV_VERSION_INT(60, 5, 100)
|
|
|
|
|
- return false;
|
|
|
|
|
-#else
|
|
|
|
|
- return true;
|
|
|
|
|
-#endif
|
|
|
|
|
-}
|
|
|