* Filter layer - format negotiation
* Copyright (c) 2007 Bobby Bingham
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "libavutil/eval.h"
#include "libavutil/pixdesc.h"
+#include "libavutil/parseutils.h"
+#include "libavutil/audioconvert.h"
#include "avfilter.h"
#include "internal.h"
#include "formats.h"
goto fail; \
for (i = 0; i < a->nb; i++) \
for (j = 0; j < b->nb; j++) \
- if (a->fmts[i] == b->fmts[j]) \
+ 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; \
+ } \
ret->fmts[k++] = a->fmts[i]; \
- \
- ret->nb = k; \
+ } \
} \
+ ret->nb = k; \
/* check that there was at least one common format */ \
if (!ret->nb) \
goto fail; \
{
const int *p;
- for (p = fmts; *p != PIX_FMT_NONE; p++) {
+ for (p = fmts; *p != -1; p++) {
if (fmt == *p)
return 1;
}
return 0;
}
+#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;
+}
+
+#define MAKE_FORMAT_LIST(type, field, count_field) \
+ type *formats; \
+ int count = 0; \
+ if (fmts) \
+ for (count = 0; fmts[count] != -1; count++) \
+ ; \
+ formats = av_mallocz(sizeof(*formats)); \
+ if (!formats) return NULL; \
+ formats->count_field = count; \
+ if (count) { \
+ formats->field = av_malloc(sizeof(*formats->field)*count); \
+ if (!formats->field) { \
+ av_free(formats); \
+ return NULL; \
+ } \
+ }
+
AVFilterFormats *avfilter_make_format_list(const int *fmts)
{
- AVFilterFormats *formats;
- int count;
+ MAKE_FORMAT_LIST(AVFilterFormats, formats, format_count);
+ while (count--)
+ formats->formats[count] = fmts[count];
- for (count = 0; fmts[count] != -1; count++)
- ;
+ return formats;
+}
- formats = av_mallocz(sizeof(*formats));
+AVFilterChannelLayouts *avfilter_make_format64_list(const int64_t *fmts)
+{
+ MAKE_FORMAT_LIST(AVFilterChannelLayouts,
+ channel_layouts, nb_channel_layouts);
if (count)
- formats->formats = av_malloc(sizeof(*formats->formats) * count);
- formats->format_count = count;
- memcpy(formats->formats, fmts, sizeof(*formats->formats) * count);
+ memcpy(formats->channel_layouts, fmts,
+ sizeof(*formats->channel_layouts) * count);
return formats;
}
return 0; \
} while (0)
-int avfilter_add_format(AVFilterFormats **avff, int fmt)
+int avfilter_add_format(AVFilterFormats **avff, int64_t fmt)
{
ADD_FORMAT(avff, fmt, int, formats, format_count);
}
ADD_FORMAT(l, channel_layout, uint64_t, channel_layouts, nb_channel_layouts);
}
+#if FF_API_OLD_ALL_FORMATS_API
AVFilterFormats *avfilter_all_formats(enum AVMediaType type)
+{
+ return avfilter_make_all_formats(type);
+}
+#endif
+
+AVFilterFormats *avfilter_make_all_formats(enum AVMediaType type)
{
AVFilterFormats *ret = NULL;
int fmt;
return ret;
}
+const int64_t avfilter_all_channel_layouts[] = {
+#include "all_channel_layouts.inc"
+ -1
+};
+
+// AVFilterFormats *avfilter_make_all_channel_layouts(void)
+// {
+// return avfilter_make_format64_list(avfilter_all_channel_layouts);
+// }
+
+#if FF_API_PACKING
+AVFilterFormats *avfilter_make_all_packing_formats(void)
+{
+ static const int packing[] = {
+ AVFILTER_PACKED,
+ AVFILTER_PLANAR,
+ -1,
+ };
+
+ return avfilter_make_format_list(packing);
+}
+#endif
+
AVFilterFormats *ff_all_samplerates(void)
{
AVFilterFormats *ret = av_mallocz(sizeof(*ret));
{
FORMATS_CHANGEREF(oldref, newref);
}
+
+#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);
+}
+
+int avfilter_default_query_formats(AVFilterContext *ctx)
+{
+ 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());
+ }
+
+ return 0;
+}
+
+/* internal functions for parsing audio format arguments */
+
+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;
+}
+
+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;
+}
+
+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;
+}
+
+int ff_parse_sample_rate(int *ret, const char *arg, void *log_ctx)
+{
+ char *tail;
+ double srate = av_strtod(arg, &tail);
+ if (*tail || srate < 1 || (int)srate != srate || srate > INT_MAX) {
+ 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;
+}
+
+#ifdef TEST
+
+#undef printf
+
+int main(void)
+{
+ const int64_t *cl;
+ char buf[512];
+
+ for (cl = avfilter_all_channel_layouts; *cl != -1; cl++) {
+ av_get_channel_layout_string(buf, sizeof(buf), -1, *cl);
+ printf("%s\n", buf);
+ }
+
+ return 0;
+}
+
+#endif
+
projects / ffmpeg / blobdiff