| 39135465 |
/*
* Filter layer - format negotiation |
| 3fa77bde |
* Copyright (c) 2007 Bobby Bingham |
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*
* 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
*/
|
| 3f07d40e |
#include "libavutil/eval.h" |
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#include "libavutil/pixdesc.h" |
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#include "libavutil/parseutils.h" |
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#include "libavutil/audioconvert.h" |
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#include "avfilter.h" |
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#include "internal.h" |
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#include "formats.h" |
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|
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/**
* Add all refs from a to ret and destroy a.
*/ |
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#define MERGE_REF(ret, a, fmts, type, fail) \
do { \
type ***tmp; \
int i; \
\
if (!(tmp = av_realloc(ret->refs, \
sizeof(*tmp) * (ret->refcount + a->refcount)))) \
goto fail; \
ret->refs = tmp; \
\
for (i = 0; i < a->refcount; i ++) { \
ret->refs[ret->refcount] = a->refs[i]; \
*ret->refs[ret->refcount++] = ret; \
} \
\
av_freep(&a->refs); \
av_freep(&a->fmts); \
av_freep(&a); \
} while (0) |
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|
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/**
* Add all formats common for a and b to ret, copy the refs and destroy
* a and b.
*/
#define MERGE_FORMATS(ret, a, b, fmts, nb, type, fail) \
do { \
int i, j, k = 0, count = FFMIN(a->nb, b->nb); \
\
if (!(ret = av_mallocz(sizeof(*ret)))) \
goto fail; \
\
if (count) { \
if (!(ret->fmts = av_malloc(sizeof(*ret->fmts) * count))) \
goto fail; \
for (i = 0; i < a->nb; i++) \
for (j = 0; j < b->nb; j++) \ |
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if (a->fmts[i] == b->fmts[j]) { \
if(k >= FFMIN(a->nb, b->nb)){ \
av_log(0, AV_LOG_ERROR, "Duplicate formats in avfilter_merge_formats() detected\n"); \
av_free(ret->fmts); \
av_free(ret); \
return NULL; \
} \ |
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ret->fmts[k++] = a->fmts[i]; \ |
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} \ |
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} \ |
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ret->nb = k; \ |
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/* check that there was at least one common format */ \
if (!ret->nb) \
goto fail; \
\
MERGE_REF(ret, a, fmts, type, fail); \
MERGE_REF(ret, b, fmts, type, fail); \
} while (0) |
| 37e0b997 |
|
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AVFilterFormats *avfilter_merge_formats(AVFilterFormats *a, AVFilterFormats *b)
{ |
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AVFilterFormats *ret = NULL; |
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|
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if (a == b)
return a; |
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|
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MERGE_FORMATS(ret, a, b, formats, format_count, AVFilterFormats, fail); |
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|
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return ret;
fail:
if (ret) {
av_freep(&ret->refs);
av_freep(&ret->formats); |
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} |
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av_freep(&ret);
return NULL;
}
AVFilterFormats *ff_merge_samplerates(AVFilterFormats *a,
AVFilterFormats *b)
{
AVFilterFormats *ret = NULL; |
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|
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if (a == b) return a; |
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|
| 5775a183 |
if (a->format_count && b->format_count) {
MERGE_FORMATS(ret, a, b, formats, format_count, AVFilterFormats, fail);
} else if (a->format_count) {
MERGE_REF(a, b, formats, AVFilterFormats, fail);
ret = a;
} else {
MERGE_REF(b, a, formats, AVFilterFormats, fail);
ret = b; |
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}
return ret; |
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fail:
if (ret) {
av_freep(&ret->refs);
av_freep(&ret->formats);
}
av_freep(&ret);
return NULL;
} |
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|
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AVFilterChannelLayouts *ff_merge_channel_layouts(AVFilterChannelLayouts *a,
AVFilterChannelLayouts *b)
{
AVFilterChannelLayouts *ret = NULL;
if (a == b) return a;
if (a->nb_channel_layouts && b->nb_channel_layouts) {
MERGE_FORMATS(ret, a, b, channel_layouts, nb_channel_layouts,
AVFilterChannelLayouts, fail);
} else if (a->nb_channel_layouts) {
MERGE_REF(a, b, channel_layouts, AVFilterChannelLayouts, fail);
ret = a;
} else {
MERGE_REF(b, a, channel_layouts, AVFilterChannelLayouts, fail);
ret = b;
} |
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return ret; |
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fail:
if (ret) {
av_freep(&ret->refs);
av_freep(&ret->channel_layouts);
}
av_freep(&ret);
return NULL; |
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}
|
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int ff_fmt_is_in(int fmt, const int *fmts)
{
const int *p;
for (p = fmts; *p != -1; p++) {
if (fmt == *p)
return 1;
}
return 0;
}
|
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#define COPY_INT_LIST(list_copy, list, type) { \
int count = 0; \
if (list) \
for (count = 0; list[count] != -1; count++) \
; \
list_copy = av_calloc(count+1, sizeof(type)); \
if (list_copy) { \
memcpy(list_copy, list, sizeof(type) * count); \
list_copy[count] = -1; \
} \
}
int *ff_copy_int_list(const int * const list)
{
int *ret = NULL;
COPY_INT_LIST(ret, list, int);
return ret;
}
int64_t *ff_copy_int64_list(const int64_t * const list)
{
int64_t *ret = NULL;
COPY_INT_LIST(ret, list, int64_t);
return ret;
}
|
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#define MAKE_FORMAT_LIST(type, field, count_field) \
type *formats; \ |
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int count = 0; \
if (fmts) \
for (count = 0; fmts[count] != -1; count++) \
; \ |
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formats = av_mallocz(sizeof(*formats)); \ |
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if (!formats) return NULL; \ |
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formats->count_field = count; \ |
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if (count) { \ |
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formats->field = av_malloc(sizeof(*formats->field)*count); \
if (!formats->field) { \ |
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av_free(formats); \
return NULL; \
} \
}
|
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AVFilterFormats *avfilter_make_format_list(const int *fmts) |
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{ |
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MAKE_FORMAT_LIST(AVFilterFormats, formats, format_count); |
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while (count--)
formats->formats[count] = fmts[count]; |
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|
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return formats;
} |
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|
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AVFilterChannelLayouts *avfilter_make_format64_list(const int64_t *fmts) |
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{ |
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MAKE_FORMAT_LIST(AVFilterChannelLayouts,
channel_layouts, nb_channel_layouts); |
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if (count) |
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memcpy(formats->channel_layouts, fmts,
sizeof(*formats->channel_layouts) * count); |
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|
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return formats; |
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}
|
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#define ADD_FORMAT(f, fmt, type, list, nb) \
do { \
type *fmts; \
\
if (!(*f) && !(*f = av_mallocz(sizeof(**f)))) \
return AVERROR(ENOMEM); \
\
fmts = av_realloc((*f)->list, \
sizeof(*(*f)->list) * ((*f)->nb + 1));\
if (!fmts) \
return AVERROR(ENOMEM); \
\
(*f)->list = fmts; \
(*f)->list[(*f)->nb++] = fmt; \
return 0; \
} while (0)
|
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int avfilter_add_format(AVFilterFormats **avff, int64_t fmt) |
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{ |
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ADD_FORMAT(avff, fmt, int, formats, format_count); |
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} |
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|
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int ff_add_channel_layout(AVFilterChannelLayouts **l, uint64_t channel_layout)
{
ADD_FORMAT(l, channel_layout, uint64_t, channel_layouts, nb_channel_layouts); |
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}
|
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#if FF_API_OLD_ALL_FORMATS_API |
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AVFilterFormats *avfilter_all_formats(enum AVMediaType type) |
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{ |
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return avfilter_make_all_formats(type);
}
#endif
AVFilterFormats *avfilter_make_all_formats(enum AVMediaType type)
{ |
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AVFilterFormats *ret = NULL; |
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int fmt; |
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int num_formats = type == AVMEDIA_TYPE_VIDEO ? PIX_FMT_NB : |
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type == AVMEDIA_TYPE_AUDIO ? AV_SAMPLE_FMT_NB : 0; |
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|
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for (fmt = 0; fmt < num_formats; fmt++)
if ((type != AVMEDIA_TYPE_VIDEO) ||
(type == AVMEDIA_TYPE_VIDEO && !(av_pix_fmt_descriptors[fmt].flags & PIX_FMT_HWACCEL)))
avfilter_add_format(&ret, fmt); |
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return ret; |
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}
|
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const int64_t avfilter_all_channel_layouts[] = { |
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#include "all_channel_layouts.inc" |
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-1
};
|
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// AVFilterFormats *avfilter_make_all_channel_layouts(void)
// {
// return avfilter_make_format64_list(avfilter_all_channel_layouts);
// } |
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|
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#if FF_API_PACKING |
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AVFilterFormats *avfilter_make_all_packing_formats(void) |
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{ |
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static const int packing[] = { |
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AVFILTER_PACKED,
AVFILTER_PLANAR,
-1,
};
return avfilter_make_format_list(packing);
} |
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#endif |
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|
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AVFilterFormats *ff_all_samplerates(void) |
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{ |
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AVFilterFormats *ret = av_mallocz(sizeof(*ret));
return ret; |
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}
|
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AVFilterChannelLayouts *ff_all_channel_layouts(void) |
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{ |
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AVFilterChannelLayouts *ret = av_mallocz(sizeof(*ret));
return ret; |
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}
|
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#define FORMATS_REF(f, ref) \
do { \
*ref = f; \
f->refs = av_realloc(f->refs, sizeof(*f->refs) * ++f->refcount); \
f->refs[f->refcount-1] = ref; \
} while (0)
void ff_channel_layouts_ref(AVFilterChannelLayouts *f, AVFilterChannelLayouts **ref) |
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{ |
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FORMATS_REF(f, ref);
} |
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|
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void avfilter_formats_ref(AVFilterFormats *f, AVFilterFormats **ref) |
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{ |
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FORMATS_REF(f, ref);
} |
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|
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#define FIND_REF_INDEX(ref, idx) \
do { \
int i; \
for (i = 0; i < (*ref)->refcount; i ++) \
if((*ref)->refs[i] == ref) { \
idx = i; \
break; \
} \
} while (0)
#define FORMATS_UNREF(ref, list) \
do { \
int idx = -1; \
\
if (!*ref) \
return; \
\
FIND_REF_INDEX(ref, idx); \
\
if (idx >= 0) \
memmove((*ref)->refs + idx, (*ref)->refs + idx + 1, \
sizeof(*(*ref)->refs) * ((*ref)->refcount - idx - 1)); \
\
if(!--(*ref)->refcount) { \
av_free((*ref)->list); \
av_free((*ref)->refs); \
av_free(*ref); \
} \
*ref = NULL; \
} while (0) |
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|
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void avfilter_formats_unref(AVFilterFormats **ref)
{
FORMATS_UNREF(ref, formats);
} |
| 88cfb804 |
|
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void ff_channel_layouts_unref(AVFilterChannelLayouts **ref)
{
FORMATS_UNREF(ref, channel_layouts);
} |
| 88cfb804 |
|
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#define FORMATS_CHANGEREF(oldref, newref) \
do { \
int idx = -1; \
\
FIND_REF_INDEX(oldref, idx); \
\
if (idx >= 0) { \
(*oldref)->refs[idx] = newref; \
*newref = *oldref; \
*oldref = NULL; \
} \
} while (0)
void ff_channel_layouts_changeref(AVFilterChannelLayouts **oldref,
AVFilterChannelLayouts **newref)
{
FORMATS_CHANGEREF(oldref, newref); |
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}
|
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void avfilter_formats_changeref(AVFilterFormats **oldref,
AVFilterFormats **newref)
{ |
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FORMATS_CHANGEREF(oldref, newref); |
| eac24950 |
} |
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#define SET_COMMON_FORMATS(ctx, fmts, in_fmts, out_fmts, ref, list) \
{ \
int count = 0, i; \
\
for (i = 0; i < ctx->input_count; i++) { \
if (ctx->inputs[i]) { \
ref(fmts, &ctx->inputs[i]->out_fmts); \
count++; \
} \
} \
for (i = 0; i < ctx->output_count; i++) { \
if (ctx->outputs[i]) { \
ref(fmts, &ctx->outputs[i]->in_fmts); \
count++; \
} \
} \
\
if (!count) { \
av_freep(&fmts->list); \
av_freep(&fmts->refs); \
av_freep(&fmts); \
} \
}
void ff_set_common_channel_layouts(AVFilterContext *ctx,
AVFilterChannelLayouts *layouts)
{
SET_COMMON_FORMATS(ctx, layouts, in_channel_layouts, out_channel_layouts,
ff_channel_layouts_ref, channel_layouts);
}
void ff_set_common_samplerates(AVFilterContext *ctx,
AVFilterFormats *samplerates)
{
SET_COMMON_FORMATS(ctx, samplerates, in_samplerates, out_samplerates,
avfilter_formats_ref, formats);
}
/**
* A helper for query_formats() which sets all links to the same list of
* formats. If there are no links hooked to this filter, the list of formats is
* freed.
*/
void avfilter_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
{
SET_COMMON_FORMATS(ctx, formats, in_formats, out_formats,
avfilter_formats_ref, formats);
} |
| eac24950 |
|
| 43c7a01e |
int ff_default_query_formats(AVFilterContext *ctx) |
| 4c64fed3 |
{
enum AVMediaType type = ctx->inputs && ctx->inputs [0] ? ctx->inputs [0]->type :
ctx->outputs && ctx->outputs[0] ? ctx->outputs[0]->type :
AVMEDIA_TYPE_VIDEO;
avfilter_set_common_formats(ctx, avfilter_all_formats(type));
if (type == AVMEDIA_TYPE_AUDIO) {
ff_set_common_channel_layouts(ctx, ff_all_channel_layouts());
ff_set_common_samplerates(ctx, ff_all_samplerates()); |
| eac24950 |
} |
| 4c64fed3 |
return 0; |
| eac24950 |
}
|
| 3f07d40e |
/* internal functions for parsing audio format arguments */
|
| e26782a9 |
int ff_parse_pixel_format(enum PixelFormat *ret, const char *arg, void *log_ctx)
{
char *tail;
int pix_fmt = av_get_pix_fmt(arg);
if (pix_fmt == PIX_FMT_NONE) {
pix_fmt = strtol(arg, &tail, 0);
if (*tail || (unsigned)pix_fmt >= PIX_FMT_NB) {
av_log(log_ctx, AV_LOG_ERROR, "Invalid pixel format '%s'\n", arg);
return AVERROR(EINVAL);
}
}
*ret = pix_fmt;
return 0;
}
|
| 3f07d40e |
int ff_parse_sample_format(int *ret, const char *arg, void *log_ctx)
{
char *tail;
int sfmt = av_get_sample_fmt(arg);
if (sfmt == AV_SAMPLE_FMT_NONE) {
sfmt = strtol(arg, &tail, 0);
if (*tail || (unsigned)sfmt >= AV_SAMPLE_FMT_NB) {
av_log(log_ctx, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
return AVERROR(EINVAL);
}
}
*ret = sfmt;
return 0;
}
|
| 3448404a |
int ff_parse_time_base(AVRational *ret, const char *arg, void *log_ctx)
{
AVRational r;
if(av_parse_ratio(&r, arg, INT_MAX, 0, log_ctx) < 0 ||r.num<=0 ||r.den<=0) {
av_log(log_ctx, AV_LOG_ERROR, "Invalid time base '%s'\n", arg);
return AVERROR(EINVAL);
}
*ret = r;
return 0;
}
|
| 4381bddc |
int ff_parse_sample_rate(int *ret, const char *arg, void *log_ctx) |
| 3f07d40e |
{
char *tail;
double srate = av_strtod(arg, &tail); |
| 4381bddc |
if (*tail || srate < 1 || (int)srate != srate || srate > INT_MAX) { |
| 3f07d40e |
av_log(log_ctx, AV_LOG_ERROR, "Invalid sample rate '%s'\n", arg);
return AVERROR(EINVAL);
}
*ret = srate;
return 0;
}
int ff_parse_channel_layout(int64_t *ret, const char *arg, void *log_ctx)
{
char *tail;
int64_t chlayout = av_get_channel_layout(arg);
if (chlayout == 0) {
chlayout = strtol(arg, &tail, 10);
if (*tail || chlayout == 0) {
av_log(log_ctx, AV_LOG_ERROR, "Invalid channel layout '%s'\n", arg);
return AVERROR(EINVAL);
}
}
*ret = chlayout;
return 0;
}
|
| 43c7a01e |
#if FF_API_FILTERS_PUBLIC
int avfilter_default_query_formats(AVFilterContext *ctx)
{
return ff_default_query_formats(ctx);
}
#endif |
| ea8de109 |
#ifdef TEST
#undef printf
int main(void)
{
const int64_t *cl;
char buf[512];
|
| 41215fde |
for (cl = avfilter_all_channel_layouts; *cl != -1; cl++) { |
| ea8de109 |
av_get_channel_layout_string(buf, sizeof(buf), -1, *cl);
printf("%s\n", buf);
}
return 0;
}
#endif |