Chiebot-Mirror
/
FFmpeg
mirror of https://github.com/FFmpeg/FFmpeg.git
8
0
Fork 0
Code Issues Projects Releases Wiki Activity

fftools/ffmpeg_filter: move some functions higher up

Browse Source 
Needed by the following commit.
pull/389/head
Anton Khirnov 2 years ago
parent 00183880aa
commit a1061d4bdc
1 changed files with 187 additions and 187 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 374
      fftools/ffmpeg_filter.c

374
fftools/ffmpeg_filter.c
Unescape View File

@ -246,6 +246,193 @@ static void choose_channel_layouts(OutputFilter *ofilter, AVBPrint *bprint)
av_bprint_chars(bprint, ':', 1);
}
static int read_binary(const char *path, uint8_t **data, int *len)
{
AVIOContext *io = NULL;
int64_t fsize;
int ret;
*data = NULL;
*len = 0;
ret = avio_open2(&io, path, AVIO_FLAG_READ, &int_cb, NULL);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot open file '%s': %s\n",
path, av_err2str(ret));
return ret;
}
fsize = avio_size(io);
if (fsize < 0 || fsize > INT_MAX) {
av_log(NULL, AV_LOG_ERROR, "Cannot obtain size of file %s\n", path);
ret = AVERROR(EIO);
goto fail;
}
*data = av_malloc(fsize);
if (!*data) {
ret = AVERROR(ENOMEM);
goto fail;
}
ret = avio_read(io, *data, fsize);
if (ret != fsize) {
av_log(NULL, AV_LOG_ERROR, "Error reading file %s\n", path);
ret = ret < 0 ? ret : AVERROR(EIO);
goto fail;
}
*len = fsize;
ret = 0;
fail:
avio_close(io);
if (ret < 0) {
av_freep(data);
*len = 0;
}
return ret;
}
static int filter_opt_apply(AVFilterContext *f, const char *key, const char *val)
{
const AVOption *o = NULL;
int ret;
ret = av_opt_set(f, key, val, AV_OPT_SEARCH_CHILDREN);
if (ret >= 0)
return 0;
if (ret == AVERROR_OPTION_NOT_FOUND && key[0] == '/')
o = av_opt_find(f, key + 1, NULL, 0, AV_OPT_SEARCH_CHILDREN);
if (!o)
goto err_apply;
// key is a valid option name prefixed with '/'
// interpret value as a path from which to load the actual option value
key++;
if (o->type == AV_OPT_TYPE_BINARY) {
uint8_t *data;
int len;
ret = read_binary(val, &data, &len);
if (ret < 0)
goto err_load;
ret = av_opt_set_bin(f, key, data, len, AV_OPT_SEARCH_CHILDREN);
av_freep(&data);
} else {
char *data = file_read(val);
if (!data) {
ret = AVERROR(EIO);
goto err_load;
}
ret = av_opt_set(f, key, data, AV_OPT_SEARCH_CHILDREN);
av_freep(&data);
}
if (ret < 0)
goto err_apply;
return 0;
err_apply:
av_log(NULL, AV_LOG_ERROR,
"Error applying option '%s' to filter '%s': %s\n",
key, f->filter->name, av_err2str(ret));
return ret;
err_load:
av_log(NULL, AV_LOG_ERROR,
"Error loading value for option '%s' from file '%s'\n",
key, val);
return ret;
}
static int graph_opts_apply(AVFilterGraphSegment *seg)
{
for (size_t i = 0; i < seg->nb_chains; i++) {
AVFilterChain *ch = seg->chains[i];
for (size_t j = 0; j < ch->nb_filters; j++) {
AVFilterParams *p = ch->filters[j];
const AVDictionaryEntry *e = NULL;
av_assert0(p->filter);
while ((e = av_dict_iterate(p->opts, e))) {
int ret = filter_opt_apply(p->filter, e->key, e->value);
if (ret < 0)
return ret;
}
av_dict_free(&p->opts);
}
}
return 0;
}
static int graph_parse(AVFilterGraph *graph, const char *desc,
AVFilterInOut **inputs, AVFilterInOut **outputs,
AVBufferRef *hw_device)
{
AVFilterGraphSegment *seg;
int ret;
*inputs = NULL;
*outputs = NULL;
ret = avfilter_graph_segment_parse(graph, desc, 0, &seg);
if (ret < 0)
return ret;
ret = avfilter_graph_segment_create_filters(seg, 0);
if (ret < 0)
goto fail;
if (hw_device) {
for (int i = 0; i < graph->nb_filters; i++) {
AVFilterContext *f = graph->filters[i];
if (!(f->filter->flags & AVFILTER_FLAG_HWDEVICE))
continue;
f->hw_device_ctx = av_buffer_ref(hw_device);
if (!f->hw_device_ctx) {
ret = AVERROR(ENOMEM);
goto fail;
}
}
}
ret = graph_opts_apply(seg);
if (ret < 0)
goto fail;
ret = avfilter_graph_segment_apply(seg, 0, inputs, outputs);
fail:
avfilter_graph_segment_free(&seg);
return ret;
}
static char *describe_filter_link(FilterGraph *fg, AVFilterInOut *inout, int in)
{
AVFilterContext *ctx = inout->filter_ctx;
AVFilterPad *pads = in ? ctx->input_pads : ctx->output_pads;
int nb_pads = in ? ctx->nb_inputs : ctx->nb_outputs;
char *res;
if (nb_pads > 1)
res = av_strdup(ctx->filter->name);
else
res = av_asprintf("%s:%s", ctx->filter->name,
avfilter_pad_get_name(pads, inout->pad_idx));
if (!res)
report_and_exit(AVERROR(ENOMEM));
return res;
}
static OutputFilter *ofilter_alloc(FilterGraph *fg)
{
OutputFilter *ofilter;
@ -395,23 +582,6 @@ int init_simple_filtergraph(InputStream *ist, OutputStream *ost,
return 0;
}
static char *describe_filter_link(FilterGraph *fg, AVFilterInOut *inout, int in)
{
AVFilterContext *ctx = inout->filter_ctx;
AVFilterPad *pads = in ? ctx->input_pads : ctx->output_pads;
int nb_pads = in ? ctx->nb_inputs : ctx->nb_outputs;
char *res;
if (nb_pads > 1)
res = av_strdup(ctx->filter->name);
else
res = av_asprintf("%s:%s", ctx->filter->name,
avfilter_pad_get_name(pads, inout->pad_idx));
if (!res)
report_and_exit(AVERROR(ENOMEM));
return res;
}
static void init_input_filter(FilterGraph *fg, AVFilterInOut *in)
{
FilterGraphPriv *fgp = fgp_from_fg(fg);
@ -480,176 +650,6 @@ static void init_input_filter(FilterGraph *fg, AVFilterInOut *in)
}
}
static int read_binary(const char *path, uint8_t **data, int *len)
{
AVIOContext *io = NULL;
int64_t fsize;
int ret;
*data = NULL;
*len = 0;
ret = avio_open2(&io, path, AVIO_FLAG_READ, &int_cb, NULL);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot open file '%s': %s\n",
path, av_err2str(ret));
return ret;
}
fsize = avio_size(io);
if (fsize < 0 || fsize > INT_MAX) {
av_log(NULL, AV_LOG_ERROR, "Cannot obtain size of file %s\n", path);
ret = AVERROR(EIO);
goto fail;
}
*data = av_malloc(fsize);
if (!*data) {
ret = AVERROR(ENOMEM);
goto fail;
}
ret = avio_read(io, *data, fsize);
if (ret != fsize) {
av_log(NULL, AV_LOG_ERROR, "Error reading file %s\n", path);
ret = ret < 0 ? ret : AVERROR(EIO);
goto fail;
}
*len = fsize;
ret = 0;
fail:
avio_close(io);
if (ret < 0) {
av_freep(data);
*len = 0;
}
return ret;
}
static int filter_opt_apply(AVFilterContext *f, const char *key, const char *val)
{
const AVOption *o = NULL;
int ret;
ret = av_opt_set(f, key, val, AV_OPT_SEARCH_CHILDREN);
if (ret >= 0)
return 0;
if (ret == AVERROR_OPTION_NOT_FOUND && key[0] == '/')
o = av_opt_find(f, key + 1, NULL, 0, AV_OPT_SEARCH_CHILDREN);
if (!o)
goto err_apply;
// key is a valid option name prefixed with '/'
// interpret value as a path from which to load the actual option value
key++;
if (o->type == AV_OPT_TYPE_BINARY) {
uint8_t *data;
int len;
ret = read_binary(val, &data, &len);
if (ret < 0)
goto err_load;
ret = av_opt_set_bin(f, key, data, len, AV_OPT_SEARCH_CHILDREN);
av_freep(&data);
} else {
char *data = file_read(val);
if (!data) {
ret = AVERROR(EIO);
goto err_load;
}
ret = av_opt_set(f, key, data, AV_OPT_SEARCH_CHILDREN);
av_freep(&data);
}
if (ret < 0)
goto err_apply;
return 0;
err_apply:
av_log(NULL, AV_LOG_ERROR,
"Error applying option '%s' to filter '%s': %s\n",
key, f->filter->name, av_err2str(ret));
return ret;
err_load:
av_log(NULL, AV_LOG_ERROR,
"Error loading value for option '%s' from file '%s'\n",
key, val);
return ret;
}
static int graph_opts_apply(AVFilterGraphSegment *seg)
{
for (size_t i = 0; i < seg->nb_chains; i++) {
AVFilterChain *ch = seg->chains[i];
for (size_t j = 0; j < ch->nb_filters; j++) {
AVFilterParams *p = ch->filters[j];
const AVDictionaryEntry *e = NULL;
av_assert0(p->filter);
while ((e = av_dict_iterate(p->opts, e))) {
int ret = filter_opt_apply(p->filter, e->key, e->value);
if (ret < 0)
return ret;
}
av_dict_free(&p->opts);
}
}
return 0;
}
static int graph_parse(AVFilterGraph *graph, const char *desc,
AVFilterInOut **inputs, AVFilterInOut **outputs,
AVBufferRef *hw_device)
{
AVFilterGraphSegment *seg;
int ret;
*inputs = NULL;
*outputs = NULL;
ret = avfilter_graph_segment_parse(graph, desc, 0, &seg);
if (ret < 0)
return ret;
ret = avfilter_graph_segment_create_filters(seg, 0);
if (ret < 0)
goto fail;
if (hw_device) {
for (int i = 0; i < graph->nb_filters; i++) {
AVFilterContext *f = graph->filters[i];
if (!(f->filter->flags & AVFILTER_FLAG_HWDEVICE))
continue;
f->hw_device_ctx = av_buffer_ref(hw_device);
if (!f->hw_device_ctx) {
ret = AVERROR(ENOMEM);
goto fail;
}
}
}
ret = graph_opts_apply(seg);
if (ret < 0)
goto fail;
ret = avfilter_graph_segment_apply(seg, 0, inputs, outputs);
fail:
avfilter_graph_segment_free(&seg);
return ret;
}
int init_complex_filtergraph(FilterGraph *fg)
{
FilterGraphPriv *fgp = fgp_from_fg(fg);

Write Preview
Loading…
Cancel
Save