#define LIBAVFILTER_AVFRAME_BASED
#endif
-#if ( defined(LIBAVFILTER_FROM_FFMPEG) && LIBAVFILTER_VERSION_INT >= AV_VERSION_INT(3,78,100) )
+#if LIBAVFILTER_VERSION_INT >= AV_VERSION_INT(3,78,100)
#define HAVE_AVFILTER_GRAPH_PARSE_PTR
-#elif defined(LIBAVFILTER_FROM_LIBAV)
- #define AVFILTER_GRAPH_PARSE_TAKES_SINGLE_PTR_ARG
-#else
- #define AVFILTER_GRAPH_PARSE_TAKES_PTR_PTR_ARG
#endif
#include "threads/SingleLock.h"
virtual void avfilter_inout_free(AVFilterInOut **inout)=0;
#if defined(HAVE_AVFILTER_GRAPH_PARSE_PTR)
virtual int avfilter_graph_parse_ptr(AVFilterGraph *graph, const char *filters, AVFilterInOut **inputs, AVFilterInOut **outputs, void *log_ctx)=0;
-#elif defined(AVFILTER_GRAPH_PARSE_TAKES_PTR_PTR_ARG)
- virtual int avfilter_graph_parse(AVFilterGraph *graph, const char *filters, AVFilterInOut **inputs, AVFilterInOut **outputs, void *log_ctx)=0;
#else
- virtual int avfilter_graph_parse(AVFilterGraph *graph, const char *filters, AVFilterInOut *inputs, AVFilterInOut *outputs, void *log_ctx)=0;
+ virtual int avfilter_graph_parse(AVFilterGraph *graph, const char *filters, AVFilterInOut **inputs, AVFilterInOut **outputs, void *log_ctx)=0;
#endif
virtual int avfilter_graph_config(AVFilterGraph *graphctx, void *log_ctx)=0;
#if (defined(LIBAVFILTER_FROM_LIBAV) && LIBAVFILTER_VERSION_INT >= AV_VERSION_INT(3,5,0)) || \
CSingleLock lock(DllAvCodec::m_critSection);
return ::avfilter_graph_parse_ptr(graph, filters, inputs, outputs, log_ctx);
}
-#elif defined(AVFILTER_GRAPH_PARSE_TAKES_PTR_PTR_ARG)
- virtual int avfilter_graph_parse(AVFilterGraph *graph, const char *filters, AVFilterInOut **inputs, AVFilterInOut **outputs, void *log_ctx)
- {
- CSingleLock lock(DllAvCodec::m_critSection);
- return ::avfilter_graph_parse(graph, filters, inputs, outputs, log_ctx);
- }
#else
- virtual int avfilter_graph_parse(AVFilterGraph *graph, const char *filters, AVFilterInOut *inputs, AVFilterInOut *outputs, void *log_ctx)
+ virtual int avfilter_graph_parse(AVFilterGraph *graph, const char *filters, AVFilterInOut **inputs, AVFilterInOut **outputs, void *log_ctx)
{
CSingleLock lock(DllAvCodec::m_critSection);
return ::avfilter_graph_parse(graph, filters, inputs, outputs, log_ctx);
DEFINE_METHOD1(void, avfilter_inout_free_dont_call, (AVFilterInOut **p1))
#if defined(HAVE_AVFILTER_GRAPH_PARSE_PTR)
DEFINE_FUNC_ALIGNED5(int, __cdecl, avfilter_graph_parse_ptr_dont_call, AVFilterGraph *, const char *, AVFilterInOut **, AVFilterInOut **, void *)
-#elif defined(AVFILTER_GRAPH_PARSE_TAKES_PTR_PTR_ARG)
- DEFINE_FUNC_ALIGNED5(int, __cdecl, avfilter_graph_parse_dont_call, AVFilterGraph *, const char *, AVFilterInOut **, AVFilterInOut **, void *)
#else
- DEFINE_FUNC_ALIGNED5(int, __cdecl, avfilter_graph_parse_dont_call, AVFilterGraph *, const char *, AVFilterInOut *, AVFilterInOut *, void *)
+ DEFINE_FUNC_ALIGNED5(int, __cdecl, avfilter_graph_parse_dont_call, AVFilterGraph *, const char *, AVFilterInOut **, AVFilterInOut **, void *)
#endif
DEFINE_FUNC_ALIGNED2(int, __cdecl, avfilter_graph_config_dont_call, AVFilterGraph *, void *)
#if (defined(LIBAVFILTER_FROM_LIBAV) && LIBAVFILTER_VERSION_INT >= AV_VERSION_INT(3,5,0)) || \
CSingleLock lock(DllAvCodec::m_critSection);
return avfilter_graph_parse_ptr_dont_call(graph, filters, inputs, outputs, log_ctx);
}
-#elif defined(AVFILTER_GRAPH_PARSE_TAKES_PTR_PTR_ARG)
- int avfilter_graph_parse(AVFilterGraph *graph, const char *filters, AVFilterInOut **inputs, AVFilterInOut **outputs, void *log_ctx)
- {
- CSingleLock lock(DllAvCodec::m_critSection);
- return avfilter_graph_parse_dont_call(graph, filters, inputs, outputs, log_ctx);
- }
#else
- int avfilter_graph_parse(AVFilterGraph *graph, const char *filters, AVFilterInOut *inputs, AVFilterInOut *outputs, void *log_ctx)
+ int avfilter_graph_parse(AVFilterGraph *graph, const char *filters, AVFilterInOut **inputs, AVFilterInOut **outputs, void *log_ctx)
{
CSingleLock lock(DllAvCodec::m_critSection);
return avfilter_graph_parse_dont_call(graph, filters, inputs, outputs, log_ctx);
--- /dev/null
+/*
+ * Copied code from libavfilter/graphparser.c
+ *
+ * Original license is:
+ *
+ * filter graph parser
+ * Copyright (c) 2008 Vitor Sessak
+ * Copyright (c) 2007 Bobby Bingham
+ *
+ * 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
+ */
+
+#include "libav_hacks.h"
+
+#include <libavutil/avstring.h>
+#include <libavutil/mem.h>
+
+#define WHITESPACES " \n\t"
+
+/**
+ * Link two filters together.
+ *
+ * @see avfilter_link()
+ */
+static int link_filter(AVFilterContext *src, int srcpad,
+ AVFilterContext *dst, int dstpad,
+ void *log_ctx)
+{
+ int ret;
+ if ((ret = avfilter_link(src, srcpad, dst, dstpad))) {
+ av_log(log_ctx, AV_LOG_ERROR,
+ "Cannot create the link %s:%d -> %s:%d\n",
+ src->filter->name, srcpad, dst->filter->name, dstpad);
+ return ret;
+ }
+
+ return 0;
+}
+
+/**
+ * Parse the name of a link, which has the format "[linkname]".
+ *
+ * @return a pointer (that need to be freed after use) to the name
+ * between parenthesis
+ */
+static char *parse_link_name(const char **buf, void *log_ctx)
+{
+ const char *start = *buf;
+ char *name;
+ (*buf)++;
+
+ name = av_get_token(buf, "]");
+
+ if (!name[0]) {
+ av_log(log_ctx, AV_LOG_ERROR,
+ "Bad (empty?) label found in the following: \"%s\".\n", start);
+ goto fail;
+ }
+
+ if (*(*buf)++ != ']') {
+ av_log(log_ctx, AV_LOG_ERROR,
+ "Mismatched '[' found in the following: \"%s\".\n", start);
+ fail:
+ av_freep(&name);
+ }
+
+ return name;
+}
+
+/**
+ * Create an instance of a filter, initialize and insert it in the
+ * filtergraph in *ctx.
+ *
+ * @param filt_ctx put here a filter context in case of successful creation and configuration, NULL otherwise.
+ * @param ctx the filtergraph context
+ * @param index an index which is supposed to be unique for each filter instance added to the filtergraph
+ * @param filt_name the name of the filter to create
+ * @param args the arguments provided to the filter during its initialization
+ * @param log_ctx the log context to use
+ * @return 0 in case of success, a negative AVERROR code otherwise
+ */
+static int create_filter(AVFilterContext **filt_ctx, AVFilterGraph *ctx, int index,
+ const char *filt_name, const char *args, void *log_ctx)
+{
+ AVFilter *filt;
+ char inst_name[30];
+ char tmp_args[256];
+ int ret;
+
+ snprintf(inst_name, sizeof(inst_name), "Parsed_%s_%d", filt_name, index);
+
+ filt = avfilter_get_by_name(filt_name);
+
+ if (!filt) {
+ av_log(log_ctx, AV_LOG_ERROR,
+ "No such filter: '%s'\n", filt_name);
+ return AVERROR(EINVAL);
+ }
+
+ *filt_ctx = avfilter_graph_alloc_filter(ctx, filt, inst_name);
+ if (!*filt_ctx) {
+ av_log(log_ctx, AV_LOG_ERROR,
+ "Error creating filter '%s'\n", filt_name);
+ return AVERROR(ENOMEM);
+ }
+
+ if (!strcmp(filt_name, "scale") && args && !strstr(args, "flags") &&
+ ctx->scale_sws_opts) {
+ snprintf(tmp_args, sizeof(tmp_args), "%s:%s",
+ args, ctx->scale_sws_opts);
+ args = tmp_args;
+ }
+
+ ret = avfilter_init_str(*filt_ctx, args);
+ if (ret < 0) {
+ av_log(log_ctx, AV_LOG_ERROR,
+ "Error initializing filter '%s'", filt_name);
+ if (args)
+ av_log(log_ctx, AV_LOG_ERROR, " with args '%s'", args);
+ av_log(log_ctx, AV_LOG_ERROR, "\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+/**
+ * Parse a string of the form FILTER_NAME[=PARAMS], and create a
+ * corresponding filter instance which is added to graph with
+ * create_filter().
+ *
+ * @param filt_ctx Pointer that is set to the created and configured filter
+ * context on success, set to NULL on failure.
+ * @param filt_ctx put here a pointer to the created filter context on
+ * success, NULL otherwise
+ * @param buf pointer to the buffer to parse, *buf will be updated to
+ * point to the char next after the parsed string
+ * @param index an index which is assigned to the created filter
+ * instance, and which is supposed to be unique for each filter
+ * instance added to the filtergraph
+ * @return 0 in case of success, a negative AVERROR code otherwise
+ */
+static int parse_filter(AVFilterContext **filt_ctx, const char **buf, AVFilterGraph *graph,
+ int index, void *log_ctx)
+{
+ char *opts = NULL;
+ char *name = av_get_token(buf, "=,;[\n");
+ int ret;
+
+ if (**buf == '=') {
+ (*buf)++;
+ opts = av_get_token(buf, "[],;\n");
+ }
+
+ ret = create_filter(filt_ctx, graph, index, name, opts, log_ctx);
+ av_free(name);
+ av_free(opts);
+ return ret;
+}
+
+static AVFilterInOut *extract_inout(const char *label, AVFilterInOut **links)
+{
+ AVFilterInOut *ret;
+
+ while (*links && (!(*links)->name || strcmp((*links)->name, label)))
+ links = &((*links)->next);
+
+ ret = *links;
+
+ if (ret) {
+ *links = ret->next;
+ ret->next = NULL;
+ }
+
+ return ret;
+}
+
+static void insert_inout(AVFilterInOut **inouts, AVFilterInOut *element)
+{
+ element->next = *inouts;
+ *inouts = element;
+}
+
+static void append_inout(AVFilterInOut **inouts, AVFilterInOut **element)
+{
+ while (*inouts && (*inouts)->next)
+ inouts = &((*inouts)->next);
+
+ if (!*inouts)
+ *inouts = *element;
+ else
+ (*inouts)->next = *element;
+ *element = NULL;
+}
+
+static int link_filter_inouts(AVFilterContext *filt_ctx,
+ AVFilterInOut **curr_inputs,
+ AVFilterInOut **open_inputs, void *log_ctx)
+{
+ int pad, ret;
+
+ for (pad = 0; pad < filt_ctx->nb_inputs; pad++) {
+ AVFilterInOut *p = *curr_inputs;
+
+ if (p) {
+ *curr_inputs = (*curr_inputs)->next;
+ p->next = NULL;
+ } else if (!(p = av_mallocz(sizeof(*p))))
+ return AVERROR(ENOMEM);
+
+ if (p->filter_ctx) {
+ ret = link_filter(p->filter_ctx, p->pad_idx, filt_ctx, pad, log_ctx);
+ av_free(p->name);
+ av_free(p);
+ if (ret < 0)
+ return ret;
+ } else {
+ p->filter_ctx = filt_ctx;
+ p->pad_idx = pad;
+ append_inout(open_inputs, &p);
+ }
+ }
+
+ if (*curr_inputs) {
+ av_log(log_ctx, AV_LOG_ERROR,
+ "Too many inputs specified for the \"%s\" filter.\n",
+ filt_ctx->filter->name);
+ return AVERROR(EINVAL);
+ }
+
+ pad = filt_ctx->nb_outputs;
+ while (pad--) {
+ AVFilterInOut *currlinkn = av_mallocz(sizeof(AVFilterInOut));
+ if (!currlinkn)
+ return AVERROR(ENOMEM);
+ currlinkn->filter_ctx = filt_ctx;
+ currlinkn->pad_idx = pad;
+ insert_inout(curr_inputs, currlinkn);
+ }
+
+ return 0;
+}
+
+static int parse_inputs(const char **buf, AVFilterInOut **curr_inputs,
+ AVFilterInOut **open_outputs, void *log_ctx)
+{
+ AVFilterInOut *parsed_inputs = NULL;
+ int pad = 0;
+
+ while (**buf == '[') {
+ char *name = parse_link_name(buf, log_ctx);
+ AVFilterInOut *match;
+
+ if (!name)
+ return AVERROR(EINVAL);
+
+ /* First check if the label is not in the open_outputs list */
+ match = extract_inout(name, open_outputs);
+
+ if (match) {
+ av_free(name);
+ } else {
+ /* Not in the list, so add it as an input */
+ if (!(match = av_mallocz(sizeof(AVFilterInOut)))) {
+ av_free(name);
+ return AVERROR(ENOMEM);
+ }
+ match->name = name;
+ match->pad_idx = pad;
+ }
+
+ append_inout(&parsed_inputs, &match);
+
+ *buf += strspn(*buf, WHITESPACES);
+ pad++;
+ }
+
+ append_inout(&parsed_inputs, curr_inputs);
+ *curr_inputs = parsed_inputs;
+
+ return pad;
+}
+
+static int parse_outputs(const char **buf, AVFilterInOut **curr_inputs,
+ AVFilterInOut **open_inputs,
+ AVFilterInOut **open_outputs, void *log_ctx)
+{
+ int ret, pad = 0;
+
+ while (**buf == '[') {
+ char *name = parse_link_name(buf, log_ctx);
+ AVFilterInOut *match;
+
+ AVFilterInOut *input = *curr_inputs;
+
+ if (!name)
+ return AVERROR(EINVAL);
+
+ if (!input) {
+ av_log(log_ctx, AV_LOG_ERROR,
+ "No output pad can be associated to link label '%s'.\n", name);
+ av_free(name);
+ return AVERROR(EINVAL);
+ }
+ *curr_inputs = (*curr_inputs)->next;
+
+ /* First check if the label is not in the open_inputs list */
+ match = extract_inout(name, open_inputs);
+
+ if (match) {
+ if ((ret = link_filter(input->filter_ctx, input->pad_idx,
+ match->filter_ctx, match->pad_idx, log_ctx)) < 0) {
+ av_free(name);
+ return ret;
+ }
+ av_free(match->name);
+ av_free(name);
+ av_free(match);
+ av_free(input);
+ } else {
+ /* Not in the list, so add the first input as a open_output */
+ input->name = name;
+ insert_inout(open_outputs, input);
+ }
+ *buf += strspn(*buf, WHITESPACES);
+ pad++;
+ }
+
+ return pad;
+}
+
+static int parse_sws_flags(const char **buf, AVFilterGraph *graph)
+{
+ char *p = strchr(*buf, ';');
+
+ if (strncmp(*buf, "sws_flags=", 10))
+ return 0;
+
+ if (!p) {
+ av_log(graph, AV_LOG_ERROR, "sws_flags not terminated with ';'.\n");
+ return AVERROR(EINVAL);
+ }
+
+ *buf += 4; // keep the 'flags=' part
+
+ av_freep(&graph->scale_sws_opts);
+ if (!(graph->scale_sws_opts = av_mallocz(p - *buf + 1)))
+ return AVERROR(ENOMEM);
+ av_strlcpy(graph->scale_sws_opts, *buf, p - *buf + 1);
+
+ *buf = p + 1;
+ return 0;
+}
+
+int avfilter_graph_parse_ptr(AVFilterGraph *graph, const char *filters,
+ AVFilterInOut **open_inputs_ptr, AVFilterInOut **open_outputs_ptr,
+ void *log_ctx)
+{
+ int index = 0, ret = 0;
+ char chr = 0;
+
+ AVFilterInOut *curr_inputs = NULL;
+ AVFilterInOut *open_inputs = open_inputs_ptr ? *open_inputs_ptr : NULL;
+ AVFilterInOut *open_outputs = open_outputs_ptr ? *open_outputs_ptr : NULL;
+
+ if ((ret = parse_sws_flags(&filters, graph)) < 0)
+ goto end;
+
+ do {
+ AVFilterContext *filter;
+ const char *filterchain = filters;
+ filters += strspn(filters, WHITESPACES);
+
+ if ((ret = parse_inputs(&filters, &curr_inputs, &open_outputs, log_ctx)) < 0)
+ goto end;
+
+ if ((ret = parse_filter(&filter, &filters, graph, index, log_ctx)) < 0)
+ goto end;
+
+ if (filter->input_count == 1 && !curr_inputs && !index) {
+ /* First input pad, assume it is "[in]" if not specified */
+ const char *tmp = "[in]";
+ if ((ret = parse_inputs(&tmp, &curr_inputs, &open_outputs, log_ctx)) < 0)
+ goto end;
+ }
+
+ if ((ret = link_filter_inouts(filter, &curr_inputs, &open_inputs, log_ctx)) < 0)
+ goto end;
+
+ if ((ret = parse_outputs(&filters, &curr_inputs, &open_inputs, &open_outputs,
+ log_ctx)) < 0)
+ goto end;
+
+ filters += strspn(filters, WHITESPACES);
+ chr = *filters++;
+
+ if (chr == ';' && curr_inputs) {
+ av_log(log_ctx, AV_LOG_ERROR,
+ "Invalid filterchain containing an unlabelled output pad: \"%s\"\n",
+ filterchain);
+ ret = AVERROR(EINVAL);
+ goto end;
+ }
+ index++;
+ } while (chr == ',' || chr == ';');
+
+ if (chr) {
+ av_log(log_ctx, AV_LOG_ERROR,
+ "Unable to parse graph description substring: \"%s\"\n",
+ filters - 1);
+ ret = AVERROR(EINVAL);
+ goto end;
+ }
+
+ if (curr_inputs) {
+ /* Last output pad, assume it is "[out]" if not specified */
+ const char *tmp = "[out]";
+ if ((ret = parse_outputs(&tmp, &curr_inputs, &open_inputs, &open_outputs,
+ log_ctx)) < 0)
+ goto end;
+ }
+
+end:
+ /* clear open_in/outputs only if not passed as parameters */
+ if (open_inputs_ptr) *open_inputs_ptr = open_inputs;
+ else avfilter_inout_free(&open_inputs);
+ if (open_outputs_ptr) *open_outputs_ptr = open_outputs;
+ else avfilter_inout_free(&open_outputs);
+ avfilter_inout_free(&curr_inputs);
+
+ if (ret < 0) {
+ while (graph->nb_filters)
+ avfilter_free(graph->filters[0]);
+ av_freep(&graph->filters);
+ }
+ return ret;
+}
projects / vuplus_xbmc / commitdiff