X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=cmdutils.c;h=f6e50fa5347de38e1f9eb1e180879da30b296201;hb=8ec19f84e12283dd79c16782ab55dd3b4e1ded66;hp=592d52a94a3a727da952428f865b9ae526e5a89a;hpb=10173c0e58e557582dbd659f42c6aa164a8682db;p=ffmpeg diff --git a/cmdutils.c b/cmdutils.c index 592d52a94a3..f6e50fa5347 100644 --- a/cmdutils.c +++ b/cmdutils.c @@ -2,20 +2,20 @@ * Various utilities for command line tools * Copyright (c) 2000-2003 Fabrice Bellard * - * This file is part of FFmpeg. + * This file is part of Libav. * - * FFmpeg is free software; you can redistribute it and/or + * Libav 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, + * Libav 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 + * License along with Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -35,8 +35,11 @@ #include "libswscale/swscale.h" #include "libpostproc/postprocess.h" #include "libavutil/avstring.h" +#include "libavutil/parseutils.h" #include "libavutil/pixdesc.h" -#include "libavcodec/opt.h" +#include "libavutil/eval.h" +#include "libavutil/dict.h" +#include "libavutil/opt.h" #include "cmdutils.h" #include "version.h" #if CONFIG_NETWORK @@ -46,25 +49,57 @@ #include #endif -const char **opt_names; -static int opt_name_count; AVCodecContext *avcodec_opts[AVMEDIA_TYPE_NB]; AVFormatContext *avformat_opts; struct SwsContext *sws_opts; +AVDictionary *format_opts, *codec_opts; -const int this_year = 2010; +static const int this_year = 2011; + +void init_opts(void) +{ + int i; + for (i = 0; i < AVMEDIA_TYPE_NB; i++) + avcodec_opts[i] = avcodec_alloc_context3(NULL); + avformat_opts = avformat_alloc_context(); +#if CONFIG_SWSCALE + sws_opts = sws_getContext(16, 16, 0, 16, 16, 0, SWS_BICUBIC, NULL, NULL, NULL); +#endif +} + +void uninit_opts(void) +{ + int i; + for (i = 0; i < AVMEDIA_TYPE_NB; i++) + av_freep(&avcodec_opts[i]); + av_freep(&avformat_opts->key); + av_freep(&avformat_opts); +#if CONFIG_SWSCALE + sws_freeContext(sws_opts); + sws_opts = NULL; +#endif + av_dict_free(&format_opts); + av_dict_free(&codec_opts); +} + +void log_callback_help(void* ptr, int level, const char* fmt, va_list vl) +{ + vfprintf(stdout, fmt, vl); +} double parse_number_or_die(const char *context, const char *numstr, int type, double min, double max) { char *tail; const char *error; - double d = strtod(numstr, &tail); + double d = av_strtod(numstr, &tail); if (*tail) error= "Expected number for %s but found: %s\n"; else if (d < min || d > max) error= "The value for %s was %s which is not within %f - %f\n"; else if(type == OPT_INT64 && (int64_t)d != d) error= "Expected int64 for %s but found %s\n"; + else if (type == OPT_INT && (int)d != d) + error= "Expected int for %s but found %s\n"; else return d; fprintf(stderr, error, context, numstr, min, max); @@ -73,8 +108,8 @@ double parse_number_or_die(const char *context, const char *numstr, int type, do int64_t parse_time_or_die(const char *context, const char *timestr, int is_duration) { - int64_t us = parse_date(timestr, is_duration); - if (us == INT64_MIN) { + int64_t us; + if (av_parse_time(&us, timestr, is_duration) < 0) { fprintf(stderr, "Invalid %s specification for %s: %s\n", is_duration ? "duration" : "date", context, timestr); exit(1); @@ -114,6 +149,67 @@ static const OptionDef* find_option(const OptionDef *po, const char *name){ return po; } +#if defined(_WIN32) && !defined(__MINGW32CE__) +#include +/* Will be leaked on exit */ +static char** win32_argv_utf8 = NULL; +static int win32_argc = 0; + +/** + * Prepare command line arguments for executable. + * For Windows - perform wide-char to UTF-8 conversion. + * Input arguments should be main() function arguments. + * @param argc_ptr Arguments number (including executable) + * @param argv_ptr Arguments list. + */ +static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr) +{ + char *argstr_flat; + wchar_t **argv_w; + int i, buffsize = 0, offset = 0; + + if (win32_argv_utf8) { + *argc_ptr = win32_argc; + *argv_ptr = win32_argv_utf8; + return; + } + + win32_argc = 0; + argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc); + if (win32_argc <= 0 || !argv_w) + return; + + /* determine the UTF-8 buffer size (including NULL-termination symbols) */ + for (i = 0; i < win32_argc; i++) + buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1, + NULL, 0, NULL, NULL); + + win32_argv_utf8 = av_mallocz(sizeof(char*) * (win32_argc + 1) + buffsize); + argstr_flat = (char*)win32_argv_utf8 + sizeof(char*) * (win32_argc + 1); + if (win32_argv_utf8 == NULL) { + LocalFree(argv_w); + return; + } + + for (i = 0; i < win32_argc; i++) { + win32_argv_utf8[i] = &argstr_flat[offset]; + offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1, + &argstr_flat[offset], + buffsize - offset, NULL, NULL); + } + win32_argv_utf8[i] = NULL; + LocalFree(argv_w); + + *argc_ptr = win32_argc; + *argv_ptr = win32_argv_utf8; +} +#else +static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr) +{ + /* nothing to do */ +} +#endif /* WIN32 && !__MINGW32CE__ */ + void parse_options(int argc, char **argv, const OptionDef *options, void (* parse_arg_function)(const char*)) { @@ -121,6 +217,9 @@ void parse_options(int argc, char **argv, const OptionDef *options, int optindex, handleoptions=1; const OptionDef *po; + /* perform system-dependent conversions for arguments list */ + prepare_app_arguments(&argc, &argv); + /* parse options */ optindex = 1; while (optindex < argc) { @@ -167,14 +266,12 @@ unknown_opt: } else if (po->flags & OPT_INT64) { *po->u.int64_arg = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX); } else if (po->flags & OPT_FLOAT) { - *po->u.float_arg = parse_number_or_die(opt, arg, OPT_FLOAT, -1.0/0.0, 1.0/0.0); - } else if (po->flags & OPT_FUNC2) { - if (po->u.func2_arg(opt, arg) < 0) { + *po->u.float_arg = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY); + } else if (po->u.func_arg) { + if (po->u.func_arg(opt, arg) < 0) { fprintf(stderr, "%s: failed to set value '%s' for option '%s'\n", argv[0], arg, opt); exit(1); } - } else { - po->u.func_arg(arg); } if(po->flags & OPT_EXIT) exit(0); @@ -185,47 +282,29 @@ unknown_opt: } } -int opt_default(const char *opt, const char *arg){ - int type; - int ret= 0; - const AVOption *o= NULL; - int opt_types[]={AV_OPT_FLAG_VIDEO_PARAM, AV_OPT_FLAG_AUDIO_PARAM, 0, AV_OPT_FLAG_SUBTITLE_PARAM, 0}; - - for(type=0; type= 0; type++){ - const AVOption *o2 = av_find_opt(avcodec_opts[0], opt, NULL, opt_types[type], opt_types[type]); - if(o2) - ret = av_set_string3(avcodec_opts[type], opt, arg, 1, &o); - } - if(!o) - ret = av_set_string3(avformat_opts, opt, arg, 1, &o); - if(!o && sws_opts) - ret = av_set_string3(sws_opts, opt, arg, 1, &o); - if(!o){ - if(opt[0] == 'a') - ret = av_set_string3(avcodec_opts[AVMEDIA_TYPE_AUDIO], opt+1, arg, 1, &o); - else if(opt[0] == 'v') - ret = av_set_string3(avcodec_opts[AVMEDIA_TYPE_VIDEO], opt+1, arg, 1, &o); - else if(opt[0] == 's') - ret = av_set_string3(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], opt+1, arg, 1, &o); - } - if (o && ret < 0) { - fprintf(stderr, "Invalid value '%s' for option '%s'\n", arg, opt); - exit(1); - } - if (!o) { - fprintf(stderr, "Unrecognized option '%s'\n", opt); - exit(1); +#define FLAGS (o->type == FF_OPT_TYPE_FLAGS) ? AV_DICT_APPEND : 0 +int opt_default(const char *opt, const char *arg) +{ + const AVOption *o; + if ((o = av_opt_find(avcodec_opts[0], opt, NULL, 0, AV_OPT_SEARCH_CHILDREN)) || + ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') && + (o = av_opt_find(avcodec_opts[0], opt+1, NULL, 0, 0)))) + av_dict_set(&codec_opts, opt, arg, FLAGS); + else if ((o = av_opt_find(avformat_opts, opt, NULL, 0, AV_OPT_SEARCH_CHILDREN))) + av_dict_set(&format_opts, opt, arg, FLAGS); + else if ((o = av_opt_find(sws_opts, opt, NULL, 0, AV_OPT_SEARCH_CHILDREN))) { + // XXX we only support sws_flags, not arbitrary sws options + int ret = av_set_string3(sws_opts, opt, arg, 1, NULL); + if (ret < 0) { + av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt); + return ret; + } } -// av_log(NULL, AV_LOG_ERROR, "%s:%s: %f 0x%0X\n", opt, arg, av_get_double(avcodec_opts, opt, NULL), (int)av_get_int(avcodec_opts, opt, NULL)); - - //FIXME we should always use avcodec_opts, ... for storing options so there will not be any need to keep track of what i set over this - opt_names= av_realloc(opt_names, sizeof(void*)*(opt_name_count+1)); - opt_names[opt_name_count++]= o->name; - - if(avcodec_opts[0]->debug || avformat_opts->debug) - av_log_set_level(AV_LOG_DEBUG); - return 0; + if (o) + return 0; + fprintf(stderr, "Unrecognized option '%s'\n", opt); + return AVERROR_OPTION_NOT_FOUND; } int opt_loglevel(const char *opt, const char *arg) @@ -276,89 +355,74 @@ int opt_timelimit(const char *opt, const char *arg) return 0; } -void set_context_opts(void *ctx, void *opts_ctx, int flags) -{ - int i; - for(i=0; iflags & flags) == flags)) - av_set_string3(ctx, opt_names[i], str, 1, NULL); - } -} - void print_error(const char *filename, int err) { char errbuf[128]; const char *errbuf_ptr = errbuf; - if (av_strerror(err, errbuf, sizeof(errbuf)) < 0) - errbuf_ptr = strerror(AVUNERROR(err)); - fprintf(stderr, "%s: %s\n", filename, errbuf_ptr); + if (av_strerror(err, errbuf, sizeof(errbuf)) < 0) + errbuf_ptr = strerror(AVUNERROR(err)); + fprintf(stderr, "%s: %s\n", filename, errbuf_ptr); } -#define PRINT_LIB_VERSION(outstream,libname,LIBNAME,indent) \ - if (CONFIG_##LIBNAME) { \ - unsigned int version = libname##_version(); \ - fprintf(outstream, "%slib%-10s %2d.%2d.%2d / %2d.%2d.%2d\n", \ - indent? " " : "", #libname, \ - LIB##LIBNAME##_VERSION_MAJOR, \ - LIB##LIBNAME##_VERSION_MINOR, \ - LIB##LIBNAME##_VERSION_MICRO, \ - version >> 16, version >> 8 & 0xff, version & 0xff); \ - } +static int warned_cfg = 0; -static void print_all_lib_versions(FILE* outstream, int indent) -{ - PRINT_LIB_VERSION(outstream, avutil, AVUTIL, indent); - PRINT_LIB_VERSION(outstream, avcodec, AVCODEC, indent); - PRINT_LIB_VERSION(outstream, avformat, AVFORMAT, indent); - PRINT_LIB_VERSION(outstream, avdevice, AVDEVICE, indent); - PRINT_LIB_VERSION(outstream, avfilter, AVFILTER, indent); - PRINT_LIB_VERSION(outstream, swscale, SWSCALE, indent); - PRINT_LIB_VERSION(outstream, postproc, POSTPROC, indent); -} +#define INDENT 1 +#define SHOW_VERSION 2 +#define SHOW_CONFIG 4 -static void maybe_print_config(const char *lib, const char *cfg) +#define PRINT_LIB_INFO(outstream,libname,LIBNAME,flags) \ + if (CONFIG_##LIBNAME) { \ + const char *indent = flags & INDENT? " " : ""; \ + if (flags & SHOW_VERSION) { \ + unsigned int version = libname##_version(); \ + fprintf(outstream, "%slib%-9s %2d.%3d.%2d / %2d.%3d.%2d\n", \ + indent, #libname, \ + LIB##LIBNAME##_VERSION_MAJOR, \ + LIB##LIBNAME##_VERSION_MINOR, \ + LIB##LIBNAME##_VERSION_MICRO, \ + version >> 16, version >> 8 & 0xff, version & 0xff); \ + } \ + if (flags & SHOW_CONFIG) { \ + const char *cfg = libname##_configuration(); \ + if (strcmp(LIBAV_CONFIGURATION, cfg)) { \ + if (!warned_cfg) { \ + fprintf(outstream, \ + "%sWARNING: library configuration mismatch\n", \ + indent); \ + warned_cfg = 1; \ + } \ + fprintf(stderr, "%s%-11s configuration: %s\n", \ + indent, #libname, cfg); \ + } \ + } \ + } \ + +static void print_all_libs_info(FILE* outstream, int flags) { - static int warned_cfg; - - if (strcmp(FFMPEG_CONFIGURATION, cfg)) { - if (!warned_cfg) { - fprintf(stderr, " WARNING: library configuration mismatch\n"); - warned_cfg = 1; - } - fprintf(stderr, " %-11s configuration: %s\n", lib, cfg); - } + PRINT_LIB_INFO(outstream, avutil, AVUTIL, flags); + PRINT_LIB_INFO(outstream, avcodec, AVCODEC, flags); + PRINT_LIB_INFO(outstream, avformat, AVFORMAT, flags); + PRINT_LIB_INFO(outstream, avdevice, AVDEVICE, flags); + PRINT_LIB_INFO(outstream, avfilter, AVFILTER, flags); + PRINT_LIB_INFO(outstream, swscale, SWSCALE, flags); + PRINT_LIB_INFO(outstream, postproc, POSTPROC, flags); } -#define PRINT_LIB_CONFIG(lib, tag, cfg) do { \ - if (CONFIG_##lib) \ - maybe_print_config(tag, cfg); \ - } while (0) - void show_banner(void) { - fprintf(stderr, "%s version " FFMPEG_VERSION ", Copyright (c) %d-%d the FFmpeg developers\n", + fprintf(stderr, "%s version " LIBAV_VERSION ", Copyright (c) %d-%d the Libav developers\n", program_name, program_birth_year, this_year); fprintf(stderr, " built on %s %s with %s %s\n", __DATE__, __TIME__, CC_TYPE, CC_VERSION); - fprintf(stderr, " configuration: " FFMPEG_CONFIGURATION "\n"); - PRINT_LIB_CONFIG(AVUTIL, "libavutil", avutil_configuration()); - PRINT_LIB_CONFIG(AVCODEC, "libavcodec", avcodec_configuration()); - PRINT_LIB_CONFIG(AVFORMAT, "libavformat", avformat_configuration()); - PRINT_LIB_CONFIG(AVDEVICE, "libavdevice", avdevice_configuration()); - PRINT_LIB_CONFIG(AVFILTER, "libavfilter", avfilter_configuration()); - PRINT_LIB_CONFIG(SWSCALE, "libswscale", swscale_configuration()); - PRINT_LIB_CONFIG(POSTPROC, "libpostproc", postproc_configuration()); - print_all_lib_versions(stderr, 1); + fprintf(stderr, " configuration: " LIBAV_CONFIGURATION "\n"); + print_all_libs_info(stderr, INDENT|SHOW_CONFIG); + print_all_libs_info(stderr, INDENT|SHOW_VERSION); } void show_version(void) { - printf("%s " FFMPEG_VERSION "\n", program_name); - print_all_lib_versions(stdout, 0); + printf("%s " LIBAV_VERSION "\n", program_name); + print_all_libs_info(stdout, SHOW_VERSION); } void show_license(void) @@ -430,16 +494,6 @@ void show_license(void) ); } -void list_fmts(void (*get_fmt_string)(char *buf, int buf_size, int fmt), int nb_fmts) -{ - int i; - char fmt_str[128]; - for (i=-1; i < nb_fmts; i++) { - get_fmt_string (fmt_str, sizeof(fmt_str), i); - fprintf(stdout, "%s\n", fmt_str); - } -} - void show_formats(void) { AVInputFormat *ifmt=NULL; @@ -577,11 +631,16 @@ void show_bsfs(void) void show_protocols(void) { - URLProtocol *up=NULL; - - printf("Supported file protocols:\n"); - while((up = av_protocol_next(up))) - printf("%s\n", up->name); + void *opaque = NULL; + const char *name; + + printf("Supported file protocols:\n" + "Input:\n"); + while ((name = avio_enum_protocols(&opaque, 0))) + printf("%s\n", name); + printf("Output:\n"); + while ((name = avio_enum_protocols(&opaque, 1))) + printf("%s\n", name); } void show_filters(void) @@ -609,6 +668,11 @@ void show_pix_fmts(void) "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n" "-----\n"); +#if !CONFIG_SWSCALE +# define sws_isSupportedInput(x) 0 +# define sws_isSupportedOutput(x) 0 +#endif + for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++) { const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[pix_fmt]; printf("%c%c%c%c%c %-16s %d %2d\n", @@ -636,7 +700,7 @@ int read_yesno(void) int read_file(const char *filename, char **bufptr, size_t *size) { - FILE *f = fopen(filename, "r"); + FILE *f = fopen(filename, "rb"); if (!f) { fprintf(stderr, "Cannot read file '%s': %s\n", filename, strerror(errno)); @@ -657,3 +721,169 @@ int read_file(const char *filename, char **bufptr, size_t *size) fclose(f); return 0; } + +void init_pts_correction(PtsCorrectionContext *ctx) +{ + ctx->num_faulty_pts = ctx->num_faulty_dts = 0; + ctx->last_pts = ctx->last_dts = INT64_MIN; +} + +int64_t guess_correct_pts(PtsCorrectionContext *ctx, int64_t reordered_pts, int64_t dts) +{ + int64_t pts = AV_NOPTS_VALUE; + + if (dts != AV_NOPTS_VALUE) { + ctx->num_faulty_dts += dts <= ctx->last_dts; + ctx->last_dts = dts; + } + if (reordered_pts != AV_NOPTS_VALUE) { + ctx->num_faulty_pts += reordered_pts <= ctx->last_pts; + ctx->last_pts = reordered_pts; + } + if ((ctx->num_faulty_pts<=ctx->num_faulty_dts || dts == AV_NOPTS_VALUE) + && reordered_pts != AV_NOPTS_VALUE) + pts = reordered_pts; + else + pts = dts; + + return pts; +} + +FILE *get_preset_file(char *filename, size_t filename_size, + const char *preset_name, int is_path, const char *codec_name) +{ + FILE *f = NULL; + int i; + const char *base[3]= { getenv("FFMPEG_DATADIR"), + getenv("HOME"), + FFMPEG_DATADIR, + }; + + if (is_path) { + av_strlcpy(filename, preset_name, filename_size); + f = fopen(filename, "r"); + } else { + for (i = 0; i < 3 && !f; i++) { + if (!base[i]) + continue; + snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i], i != 1 ? "" : "/.ffmpeg", preset_name); + f = fopen(filename, "r"); + if (!f && codec_name) { + snprintf(filename, filename_size, + "%s%s/%s-%s.ffpreset", base[i], i != 1 ? "" : "/.ffmpeg", codec_name, preset_name); + f = fopen(filename, "r"); + } + } + } + + return f; +} + +AVDictionary *filter_codec_opts(AVDictionary *opts, enum CodecID codec_id, int encoder) +{ + AVDictionary *ret = NULL; + AVDictionaryEntry *t = NULL; + AVCodec *codec = encoder ? avcodec_find_encoder(codec_id) : avcodec_find_decoder(codec_id); + int flags = encoder ? AV_OPT_FLAG_ENCODING_PARAM : AV_OPT_FLAG_DECODING_PARAM; + char prefix = 0; + + if (!codec) + return NULL; + + switch (codec->type) { + case AVMEDIA_TYPE_VIDEO: prefix = 'v'; flags |= AV_OPT_FLAG_VIDEO_PARAM; break; + case AVMEDIA_TYPE_AUDIO: prefix = 'a'; flags |= AV_OPT_FLAG_AUDIO_PARAM; break; + case AVMEDIA_TYPE_SUBTITLE: prefix = 's'; flags |= AV_OPT_FLAG_SUBTITLE_PARAM; break; + } + + while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) { + if (av_opt_find(avcodec_opts[0], t->key, NULL, flags, 0) || + (codec && codec->priv_class && av_opt_find(&codec->priv_class, t->key, NULL, flags, 0))) + av_dict_set(&ret, t->key, t->value, 0); + else if (t->key[0] == prefix && av_opt_find(avcodec_opts[0], t->key+1, NULL, flags, 0)) + av_dict_set(&ret, t->key+1, t->value, 0); + } + return ret; +} + +AVDictionary **setup_find_stream_info_opts(AVFormatContext *s, AVDictionary *codec_opts) +{ + int i; + AVDictionary **opts; + + if (!s->nb_streams) + return NULL; + opts = av_mallocz(s->nb_streams * sizeof(*opts)); + if (!opts) { + av_log(NULL, AV_LOG_ERROR, "Could not alloc memory for stream options.\n"); + return NULL; + } + for (i = 0; i < s->nb_streams; i++) + opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codec->codec_id, 0); + return opts; +} + +#if CONFIG_AVFILTER + +static int ffsink_init(AVFilterContext *ctx, const char *args, void *opaque) +{ + FFSinkContext *priv = ctx->priv; + + if (!opaque) + return AVERROR(EINVAL); + *priv = *(FFSinkContext *)opaque; + + return 0; +} + +static void null_end_frame(AVFilterLink *inlink) { } + +static int ffsink_query_formats(AVFilterContext *ctx) +{ + FFSinkContext *priv = ctx->priv; + enum PixelFormat pix_fmts[] = { priv->pix_fmt, PIX_FMT_NONE }; + + avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts)); + return 0; +} + +AVFilter ffsink = { + .name = "ffsink", + .priv_size = sizeof(FFSinkContext), + .init = ffsink_init, + + .query_formats = ffsink_query_formats, + + .inputs = (AVFilterPad[]) {{ .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .end_frame = null_end_frame, + .min_perms = AV_PERM_READ, }, + { .name = NULL }}, + .outputs = (AVFilterPad[]) {{ .name = NULL }}, +}; + +int get_filtered_video_frame(AVFilterContext *ctx, AVFrame *frame, + AVFilterBufferRef **picref_ptr, AVRational *tb) +{ + int ret; + AVFilterBufferRef *picref; + + if ((ret = avfilter_request_frame(ctx->inputs[0])) < 0) + return ret; + if (!(picref = ctx->inputs[0]->cur_buf)) + return AVERROR(ENOENT); + *picref_ptr = picref; + ctx->inputs[0]->cur_buf = NULL; + *tb = ctx->inputs[0]->time_base; + + memcpy(frame->data, picref->data, sizeof(frame->data)); + memcpy(frame->linesize, picref->linesize, sizeof(frame->linesize)); + frame->interlaced_frame = picref->video->interlaced; + frame->top_field_first = picref->video->top_field_first; + frame->key_frame = picref->video->key_frame; + frame->pict_type = picref->video->pict_type; + + return 1; +} + +#endif /* CONFIG_AVFILTER */