/* * ffmpeg main * Copyright (c) 2000-2003 Fabrice Bellard * * 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 "config.h" #include #include #include #include #include #include #include #include #include "libavformat/avformat.h" #include "libavdevice/avdevice.h" #include "libswscale/swscale.h" #include "libavutil/opt.h" #include "libavcodec/audioconvert.h" #include "libavutil/audioconvert.h" #include "libavutil/parseutils.h" #include "libavutil/samplefmt.h" #include "libavutil/colorspace.h" #include "libavutil/fifo.h" #include "libavutil/intreadwrite.h" #include "libavutil/dict.h" #include "libavutil/mathematics.h" #include "libavutil/pixdesc.h" #include "libavutil/avstring.h" #include "libavutil/libm.h" #include "libavformat/os_support.h" #include "libavformat/ffm.h" // not public API #if CONFIG_AVFILTER # include "libavfilter/avcodec.h" # include "libavfilter/avfilter.h" # include "libavfilter/avfiltergraph.h" # include "libavfilter/vsink_buffer.h" # include "libavfilter/vsrc_buffer.h" #endif #if HAVE_SYS_RESOURCE_H #include #include #include #elif HAVE_GETPROCESSTIMES #include #endif #if HAVE_GETPROCESSMEMORYINFO #include #include #endif #if HAVE_SYS_SELECT_H #include #endif #if HAVE_TERMIOS_H #include #include #include #include #elif HAVE_KBHIT #include #endif #include #include "cmdutils.h" #include "libavutil/avassert.h" const char program_name[] = "ffmpeg"; const int program_birth_year = 2000; /* select an input stream for an output stream */ typedef struct StreamMap { int disabled; /** 1 is this mapping is disabled by a negative map */ int file_index; int stream_index; int sync_file_index; int sync_stream_index; } StreamMap; /** * select an input file for an output file */ typedef struct MetadataMap { int file; ///< file index char type; ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram int index; ///< stream/chapter/program number } MetadataMap; static const OptionDef options[]; #define MAX_STREAMS 1024 /* arbitrary sanity check value */ static const char *last_asked_format = NULL; static AVDictionary *ts_scale; static StreamMap *stream_maps = NULL; static int nb_stream_maps; static AVDictionary *codec_names; /* first item specifies output metadata, second is input */ static MetadataMap (*meta_data_maps)[2] = NULL; static int nb_meta_data_maps; static int metadata_global_autocopy = 1; static int metadata_streams_autocopy = 1; static int metadata_chapters_autocopy = 1; static int chapters_input_file = INT_MAX; /* indexed by output file stream index */ static int *streamid_map = NULL; static int nb_streamid_map = 0; static int frame_width = 0; static int frame_height = 0; static float frame_aspect_ratio = 0; static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE; static int frame_bits_per_raw_sample = 0; static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE; static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX}; static AVRational frame_rate; static float video_qscale = 0; static uint16_t *intra_matrix = NULL; static uint16_t *inter_matrix = NULL; static const char *video_rc_override_string=NULL; static int video_disable = 0; static int video_discard = 0; static unsigned int video_codec_tag = 0; static char *video_language = NULL; static int same_quant = 0; static int do_deinterlace = 0; static int top_field_first = -1; static int me_threshold = 0; static int intra_dc_precision = 8; static int loop_input = 0; static int loop_output = AVFMT_NOOUTPUTLOOP; static int qp_hist = 0; #if CONFIG_AVFILTER static char *vfilters = NULL; #endif static int intra_only = 0; static int audio_sample_rate = 0; #define QSCALE_NONE -99999 static float audio_qscale = QSCALE_NONE; static int audio_disable = 0; static int audio_channels = 0; static unsigned int audio_codec_tag = 0; static char *audio_language = NULL; static int subtitle_disable = 0; static char *subtitle_language = NULL; static unsigned int subtitle_codec_tag = 0; static int data_disable = 0; static unsigned int data_codec_tag = 0; static float mux_preload= 0.5; static float mux_max_delay= 0.7; static int64_t recording_time = INT64_MAX; static int64_t start_time = 0; static int64_t input_ts_offset = 0; static int file_overwrite = 0; static AVDictionary *metadata; static int do_benchmark = 0; static int do_hex_dump = 0; static int do_pkt_dump = 0; static int do_psnr = 0; static int do_pass = 0; static const char *pass_logfilename_prefix; static int video_sync_method= -1; static int audio_sync_method= 0; static float audio_drift_threshold= 0.1; static int copy_ts= 0; static int copy_tb= 0; static int opt_shortest = 0; static char *vstats_filename; static FILE *vstats_file; static int opt_programid = 0; static int copy_initial_nonkeyframes = 0; static int rate_emu = 0; static int audio_volume = 256; static int exit_on_error = 0; static int using_stdin = 0; static int verbose = 1; static int run_as_daemon = 0; static int thread_count= 1; static int q_pressed = 0; static int64_t video_size = 0; static int64_t audio_size = 0; static int64_t extra_size = 0; static int nb_frames_dup = 0; static int nb_frames_drop = 0; static int input_sync; static uint64_t limit_filesize = UINT64_MAX; static int force_fps = 0; static char *forced_key_frames = NULL; static float dts_delta_threshold = 10; static uint8_t *audio_buf; static uint8_t *audio_out; static unsigned int allocated_audio_out_size, allocated_audio_buf_size; static short *samples; static AVBitStreamFilterContext *video_bitstream_filters=NULL; static AVBitStreamFilterContext *audio_bitstream_filters=NULL; static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL; #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass" typedef struct InputStream { int file_index; AVStream *st; int discard; /* true if stream data should be discarded */ int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */ AVCodec *dec; int64_t start; /* time when read started */ int64_t next_pts; /* synthetic pts for cases where pkt.pts is not defined */ int64_t pts; /* current pts */ double ts_scale; int is_start; /* is 1 at the start and after a discontinuity */ int showed_multi_packet_warning; AVDictionary *opts; } InputStream; typedef struct InputFile { AVFormatContext *ctx; int eof_reached; /* true if eof reached */ int ist_index; /* index of first stream in ist_table */ int buffer_size; /* current total buffer size */ int64_t ts_offset; int nb_streams; /* number of stream that avconv is aware of; may be different from ctx.nb_streams if new streams appear during av_read_frame() */ } InputFile; typedef struct OutputStream { int file_index; /* file index */ int index; /* stream index in the output file */ int source_index; /* InputStream index */ AVStream *st; /* stream in the output file */ int encoding_needed; /* true if encoding needed for this stream */ int frame_number; /* input pts and corresponding output pts for A/V sync */ //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */ struct InputStream *sync_ist; /* input stream to sync against */ int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number AVBitStreamFilterContext *bitstream_filters; AVCodec *enc; /* video only */ int video_resample; AVFrame resample_frame; /* temporary frame for image resampling */ struct SwsContext *img_resample_ctx; /* for image resampling */ int resample_height; int resample_width; int resample_pix_fmt; AVRational frame_rate; float frame_aspect_ratio; /* forced key frames */ int64_t *forced_kf_pts; int forced_kf_count; int forced_kf_index; /* audio only */ int audio_resample; ReSampleContext *resample; /* for audio resampling */ int resample_sample_fmt; int resample_channels; int resample_sample_rate; int reformat_pair; AVAudioConvert *reformat_ctx; AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */ FILE *logfile; #if CONFIG_AVFILTER AVFilterContext *output_video_filter; AVFilterContext *input_video_filter; AVFilterBufferRef *picref; char *avfilter; AVFilterGraph *graph; #endif int sws_flags; AVDictionary *opts; int is_past_recording_time; } OutputStream; #if HAVE_TERMIOS_H /* init terminal so that we can grab keys */ static struct termios oldtty; #endif typedef struct OutputFile { AVFormatContext *ctx; AVDictionary *opts; int ost_index; /* index of the first stream in output_streams */ int64_t recording_time; /* desired length of the resulting file in microseconds */ int64_t start_time; /* start time in microseconds */ uint64_t limit_filesize; } OutputFile; static InputStream *input_streams = NULL; static int nb_input_streams = 0; static InputFile *input_files = NULL; static int nb_input_files = 0; static OutputStream *output_streams = NULL; static int nb_output_streams = 0; static OutputFile *output_files = NULL; static int nb_output_files = 0; #if CONFIG_AVFILTER static int configure_video_filters(InputStream *ist, OutputStream *ost) { AVFilterContext *last_filter, *filter; /** filter graph containing all filters including input & output */ AVCodecContext *codec = ost->st->codec; AVCodecContext *icodec = ist->st->codec; enum PixelFormat pix_fmts[] = { codec->pix_fmt, PIX_FMT_NONE }; AVRational sample_aspect_ratio; char args[255]; int ret; ost->graph = avfilter_graph_alloc(); if (ist->st->sample_aspect_ratio.num){ sample_aspect_ratio = ist->st->sample_aspect_ratio; }else sample_aspect_ratio = ist->st->codec->sample_aspect_ratio; snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width, ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE, sample_aspect_ratio.num, sample_aspect_ratio.den); ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"), "src", args, NULL, ost->graph); if (ret < 0) return ret; ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"), "out", NULL, pix_fmts, ost->graph); if (ret < 0) return ret; last_filter = ost->input_video_filter; if (codec->width != icodec->width || codec->height != icodec->height) { snprintf(args, 255, "%d:%d:flags=0x%X", codec->width, codec->height, ost->sws_flags); if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"), NULL, args, NULL, ost->graph)) < 0) return ret; if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0) return ret; last_filter = filter; } snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags); ost->graph->scale_sws_opts = av_strdup(args); if (ost->avfilter) { AVFilterInOut *outputs = avfilter_inout_alloc(); AVFilterInOut *inputs = avfilter_inout_alloc(); outputs->name = av_strdup("in"); outputs->filter_ctx = last_filter; outputs->pad_idx = 0; outputs->next = NULL; inputs->name = av_strdup("out"); inputs->filter_ctx = ost->output_video_filter; inputs->pad_idx = 0; inputs->next = NULL; if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, &inputs, &outputs, NULL)) < 0) return ret; av_freep(&ost->avfilter); } else { if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0) return ret; } if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0) return ret; codec->width = ost->output_video_filter->inputs[0]->w; codec->height = ost->output_video_filter->inputs[0]->h; codec->sample_aspect_ratio = ost->st->sample_aspect_ratio = ost->frame_aspect_ratio ? // overridden by the -aspect cli option av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) : ost->output_video_filter->inputs[0]->sample_aspect_ratio; return 0; } #endif /* CONFIG_AVFILTER */ static void term_exit(void) { av_log(NULL, AV_LOG_QUIET, "%s", ""); #if HAVE_TERMIOS_H if(!run_as_daemon) tcsetattr (0, TCSANOW, &oldtty); #endif } static volatile int received_sigterm = 0; static void sigterm_handler(int sig) { received_sigterm = sig; q_pressed++; term_exit(); } static void term_init(void) { #if HAVE_TERMIOS_H if(!run_as_daemon){ struct termios tty; tcgetattr (0, &tty); oldtty = tty; atexit(term_exit); tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |INLCR|IGNCR|ICRNL|IXON); tty.c_oflag |= OPOST; tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); tty.c_cflag &= ~(CSIZE|PARENB); tty.c_cflag |= CS8; tty.c_cc[VMIN] = 1; tty.c_cc[VTIME] = 0; tcsetattr (0, TCSANOW, &tty); signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */ } #endif signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */ signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */ #ifdef SIGXCPU signal(SIGXCPU, sigterm_handler); #endif } /* read a key without blocking */ static int read_key(void) { #if HAVE_TERMIOS_H int n = 1; unsigned char ch; struct timeval tv; fd_set rfds; if(run_as_daemon) return -1; FD_ZERO(&rfds); FD_SET(0, &rfds); tv.tv_sec = 0; tv.tv_usec = 0; n = select(1, &rfds, NULL, NULL, &tv); if (n > 0) { n = read(0, &ch, 1); if (n == 1) return ch; return n; } #elif HAVE_KBHIT if(kbhit()) return(getch()); #endif return -1; } static int decode_interrupt_cb(void) { q_pressed += read_key() == 'q'; return q_pressed > 1; } static int exit_program(int ret) { int i; /* close files */ for(i=0;ioformat->flags & AVFMT_NOFILE) && s->pb) avio_close(s->pb); avformat_free_context(s); av_dict_free(&output_files[i].opts); } for(i=0;ikey); exit_program(1); } } static void assert_codec_experimental(AVCodecContext *c, int encoder) { const char *codec_string = encoder ? "encoder" : "decoder"; AVCodec *codec; if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL && c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) { av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad " "results.\nAdd '-strict experimental' if you want to use it.\n", codec_string, c->codec->name); codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id); if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL)) av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n", codec_string, codec->name); exit_program(1); } } /* similar to ff_dynarray_add() and av_fast_realloc() */ static void *grow_array(void *array, int elem_size, int *size, int new_size) { if (new_size >= INT_MAX / elem_size) { fprintf(stderr, "Array too big.\n"); exit_program(1); } if (*size < new_size) { uint8_t *tmp = av_realloc(array, new_size*elem_size); if (!tmp) { fprintf(stderr, "Could not alloc buffer.\n"); exit_program(1); } memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size); *size = new_size; return tmp; } return array; } static void choose_sample_fmt(AVStream *st, AVCodec *codec) { if(codec && codec->sample_fmts){ const enum AVSampleFormat *p= codec->sample_fmts; for(; *p!=-1; p++){ if(*p == st->codec->sample_fmt) break; } if (*p == -1) { if((codec->capabilities & CODEC_CAP_LOSSLESS) && av_get_sample_fmt_name(st->codec->sample_fmt) > av_get_sample_fmt_name(codec->sample_fmts[0])) av_log(NULL, AV_LOG_ERROR, "Convertion will not be lossless'\n"); if(av_get_sample_fmt_name(st->codec->sample_fmt)) av_log(NULL, AV_LOG_WARNING, "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n", av_get_sample_fmt_name(st->codec->sample_fmt), codec->name, av_get_sample_fmt_name(codec->sample_fmts[0])); st->codec->sample_fmt = codec->sample_fmts[0]; } } } static void choose_sample_rate(AVStream *st, AVCodec *codec) { if(codec && codec->supported_samplerates){ const int *p= codec->supported_samplerates; int best=0; int best_dist=INT_MAX; for(; *p; p++){ int dist= abs(st->codec->sample_rate - *p); if(dist < best_dist){ best_dist= dist; best= *p; } } if(best_dist){ av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best); } st->codec->sample_rate= best; } } static void choose_pixel_fmt(AVStream *st, AVCodec *codec) { if(codec && codec->pix_fmts){ const enum PixelFormat *p= codec->pix_fmts; if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){ if(st->codec->codec_id==CODEC_ID_MJPEG){ p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE}; }else if(st->codec->codec_id==CODEC_ID_LJPEG){ p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE}; } } for(; *p!=-1; p++){ if(*p == st->codec->pix_fmt) break; } if (*p == -1) { if(st->codec->pix_fmt != PIX_FMT_NONE) av_log(NULL, AV_LOG_WARNING, "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n", av_pix_fmt_descriptors[st->codec->pix_fmt].name, codec->name, av_pix_fmt_descriptors[codec->pix_fmts[0]].name); st->codec->pix_fmt = codec->pix_fmts[0]; } } } static double get_sync_ipts(const OutputStream *ost) { const InputStream *ist = ost->sync_ist; OutputFile *of = &output_files[ost->file_index]; return (double)(ist->pts - of->start_time)/AV_TIME_BASE; } static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){ int ret; while(bsfc){ AVPacket new_pkt= *pkt; int a= av_bitstream_filter_filter(bsfc, avctx, NULL, &new_pkt.data, &new_pkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY); if(a>0){ av_free_packet(pkt); new_pkt.destruct= av_destruct_packet; } else if(a<0){ fprintf(stderr, "%s failed for stream %d, codec %s", bsfc->filter->name, pkt->stream_index, avctx->codec ? avctx->codec->name : "copy"); print_error("", a); if (exit_on_error) exit_program(1); } *pkt= new_pkt; bsfc= bsfc->next; } ret= av_interleaved_write_frame(s, pkt); if(ret < 0){ print_error("av_interleaved_write_frame()", ret); exit_program(1); } } static void do_audio_out(AVFormatContext *s, OutputStream *ost, InputStream *ist, unsigned char *buf, int size) { uint8_t *buftmp; int64_t audio_out_size, audio_buf_size; int64_t allocated_for_size= size; int size_out, frame_bytes, ret, resample_changed; AVCodecContext *enc= ost->st->codec; AVCodecContext *dec= ist->st->codec; int osize = av_get_bytes_per_sample(enc->sample_fmt); int isize = av_get_bytes_per_sample(dec->sample_fmt); const int coded_bps = av_get_bits_per_sample(enc->codec->id); need_realloc: audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels); audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate; audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API audio_buf_size= FFMAX(audio_buf_size, enc->frame_size); audio_buf_size*= osize*enc->channels; audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels); if(coded_bps > 8*osize) audio_out_size= audio_out_size * coded_bps / (8*osize); audio_out_size += FF_MIN_BUFFER_SIZE; if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){ fprintf(stderr, "Buffer sizes too large\n"); exit_program(1); } av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size); av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size); if (!audio_buf || !audio_out){ fprintf(stderr, "Out of memory in do_audio_out\n"); exit_program(1); } if (enc->channels != dec->channels) ost->audio_resample = 1; resample_changed = ost->resample_sample_fmt != dec->sample_fmt || ost->resample_channels != dec->channels || ost->resample_sample_rate != dec->sample_rate; if ((ost->audio_resample && !ost->resample) || resample_changed) { if (resample_changed) { av_log(NULL, AV_LOG_INFO, "Input stream #%d.%d frame changed from rate:%d fmt:%s ch:%d to rate:%d fmt:%s ch:%d\n", ist->file_index, ist->st->index, ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels, dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels); ost->resample_sample_fmt = dec->sample_fmt; ost->resample_channels = dec->channels; ost->resample_sample_rate = dec->sample_rate; if (ost->resample) audio_resample_close(ost->resample); } /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */ if (audio_sync_method <= 1 && ost->resample_sample_fmt == enc->sample_fmt && ost->resample_channels == enc->channels && ost->resample_sample_rate == enc->sample_rate) { ost->resample = NULL; ost->audio_resample = 0; } else { if (dec->sample_fmt != AV_SAMPLE_FMT_S16) fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n"); ost->resample = av_audio_resample_init(enc->channels, dec->channels, enc->sample_rate, dec->sample_rate, enc->sample_fmt, dec->sample_fmt, 16, 10, 0, 0.8); if (!ost->resample) { fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n", dec->channels, dec->sample_rate, enc->channels, enc->sample_rate); exit_program(1); } } } #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b)) if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt && MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) { if (ost->reformat_ctx) av_audio_convert_free(ost->reformat_ctx); ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1, dec->sample_fmt, 1, NULL, 0); if (!ost->reformat_ctx) { fprintf(stderr, "Cannot convert %s sample format to %s sample format\n", av_get_sample_fmt_name(dec->sample_fmt), av_get_sample_fmt_name(enc->sample_fmt)); exit_program(1); } ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt); } if(audio_sync_method){ double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts - av_fifo_size(ost->fifo)/(enc->channels * 2); double idelta= delta*dec->sample_rate / enc->sample_rate; int byte_delta= ((int)idelta)*2*dec->channels; //FIXME resample delay if(fabs(delta) > 50){ if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){ if(byte_delta < 0){ byte_delta= FFMAX(byte_delta, -size); size += byte_delta; buf -= byte_delta; if(verbose > 2) fprintf(stderr, "discarding %d audio samples\n", (int)-delta); if(!size) return; ist->is_start=0; }else{ static uint8_t *input_tmp= NULL; input_tmp= av_realloc(input_tmp, byte_delta + size); if(byte_delta > allocated_for_size - size){ allocated_for_size= byte_delta + (int64_t)size; goto need_realloc; } ist->is_start=0; memset(input_tmp, 0, byte_delta); memcpy(input_tmp + byte_delta, buf, size); buf= input_tmp; size += byte_delta; if(verbose > 2) fprintf(stderr, "adding %d audio samples of silence\n", (int)delta); } }else if(audio_sync_method>1){ int comp= av_clip(delta, -audio_sync_method, audio_sync_method); av_assert0(ost->audio_resample); if(verbose > 2) fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate); // fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2)); av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate); } } }else ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate) - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong if (ost->audio_resample) { buftmp = audio_buf; size_out = audio_resample(ost->resample, (short *)buftmp, (short *)buf, size / (dec->channels * isize)); size_out = size_out * enc->channels * osize; } else { buftmp = buf; size_out = size; } if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) { const void *ibuf[6]= {buftmp}; void *obuf[6]= {audio_buf}; int istride[6]= {isize}; int ostride[6]= {osize}; int len= size_out/istride[0]; if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) { printf("av_audio_convert() failed\n"); if (exit_on_error) exit_program(1); return; } buftmp = audio_buf; size_out = len*osize; } /* now encode as many frames as possible */ if (enc->frame_size > 1) { /* output resampled raw samples */ if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) { fprintf(stderr, "av_fifo_realloc2() failed\n"); exit_program(1); } av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL); frame_bytes = enc->frame_size * osize * enc->channels; while (av_fifo_size(ost->fifo) >= frame_bytes) { AVPacket pkt; av_init_packet(&pkt); av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL); //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio() ret = avcodec_encode_audio(enc, audio_out, audio_out_size, (short *)audio_buf); if (ret < 0) { fprintf(stderr, "Audio encoding failed\n"); exit_program(1); } audio_size += ret; pkt.stream_index= ost->index; pkt.data= audio_out; pkt.size= ret; if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE) pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base); pkt.flags |= AV_PKT_FLAG_KEY; write_frame(s, &pkt, enc, ost->bitstream_filters); ost->sync_opts += enc->frame_size; } } else { AVPacket pkt; av_init_packet(&pkt); ost->sync_opts += size_out / (osize * enc->channels); /* output a pcm frame */ /* determine the size of the coded buffer */ size_out /= osize; if (coded_bps) size_out = size_out*coded_bps/8; if(size_out > audio_out_size){ fprintf(stderr, "Internal error, buffer size too small\n"); exit_program(1); } //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio() ret = avcodec_encode_audio(enc, audio_out, size_out, (short *)buftmp); if (ret < 0) { fprintf(stderr, "Audio encoding failed\n"); exit_program(1); } audio_size += ret; pkt.stream_index= ost->index; pkt.data= audio_out; pkt.size= ret; if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE) pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base); pkt.flags |= AV_PKT_FLAG_KEY; write_frame(s, &pkt, enc, ost->bitstream_filters); } } static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp) { AVCodecContext *dec; AVPicture *picture2; AVPicture picture_tmp; uint8_t *buf = 0; dec = ist->st->codec; /* deinterlace : must be done before any resize */ if (do_deinterlace) { int size; /* create temporary picture */ size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height); buf = av_malloc(size); if (!buf) return; picture2 = &picture_tmp; avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height); if(avpicture_deinterlace(picture2, picture, dec->pix_fmt, dec->width, dec->height) < 0) { /* if error, do not deinterlace */ fprintf(stderr, "Deinterlacing failed\n"); av_free(buf); buf = NULL; picture2 = picture; } } else { picture2 = picture; } if (picture != picture2) *picture = *picture2; *bufp = buf; } static void do_subtitle_out(AVFormatContext *s, OutputStream *ost, InputStream *ist, AVSubtitle *sub, int64_t pts) { static uint8_t *subtitle_out = NULL; int subtitle_out_max_size = 1024 * 1024; int subtitle_out_size, nb, i; AVCodecContext *enc; AVPacket pkt; if (pts == AV_NOPTS_VALUE) { fprintf(stderr, "Subtitle packets must have a pts\n"); if (exit_on_error) exit_program(1); return; } enc = ost->st->codec; if (!subtitle_out) { subtitle_out = av_malloc(subtitle_out_max_size); } /* Note: DVB subtitle need one packet to draw them and one other packet to clear them */ /* XXX: signal it in the codec context ? */ if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) nb = 2; else nb = 1; for(i = 0; i < nb; i++) { sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q); // start_display_time is required to be 0 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q); sub->end_display_time -= sub->start_display_time; sub->start_display_time = 0; subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out, subtitle_out_max_size, sub); if (subtitle_out_size < 0) { fprintf(stderr, "Subtitle encoding failed\n"); exit_program(1); } av_init_packet(&pkt); pkt.stream_index = ost->index; pkt.data = subtitle_out; pkt.size = subtitle_out_size; pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base); if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) { /* XXX: the pts correction is handled here. Maybe handling it in the codec would be better */ if (i == 0) pkt.pts += 90 * sub->start_display_time; else pkt.pts += 90 * sub->end_display_time; } write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters); } } static int bit_buffer_size= 1024*256; static uint8_t *bit_buffer= NULL; static void do_video_resample(OutputStream *ost, InputStream *ist, AVFrame *in_picture, AVFrame **out_picture) { int resample_changed = 0; AVCodecContext *dec = ist->st->codec; *out_picture = in_picture; #if !CONFIG_AVFILTER resample_changed = ost->resample_width != dec->width || ost->resample_height != dec->height || ost->resample_pix_fmt != dec->pix_fmt; if (resample_changed) { av_log(NULL, AV_LOG_INFO, "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n", ist->file_index, ist->st->index, ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt), dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt)); ost->resample_width = dec->width; ost->resample_height = dec->height; ost->resample_pix_fmt = dec->pix_fmt; } ost->video_resample = dec->width != enc->width || dec->height != enc->height || dec->pix_fmt != enc->pix_fmt; if (ost->video_resample) { *out_picture = &ost->resample_frame; if (!ost->img_resample_ctx || resample_changed) { /* initialize the destination picture */ if (!ost->resample_frame.data[0]) { avcodec_get_frame_defaults(&ost->resample_frame); if (avpicture_alloc((AVPicture *)&ost->resample_frame, enc->pix_fmt, enc->width, enc->height)) { fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n"); exit_program(1); } } /* initialize a new scaler context */ sws_freeContext(ost->img_resample_ctx); ost->img_resample_ctx = sws_getContext(dec->width, dec->height, dec->pix_fmt, enc->width, enc->height, enc->pix_fmt, ost->sws_flags, NULL, NULL, NULL); if (ost->img_resample_ctx == NULL) { fprintf(stderr, "Cannot get resampling context\n"); exit_program(1); } } sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize, 0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize); } #endif } static void do_video_out(AVFormatContext *s, OutputStream *ost, InputStream *ist, AVFrame *in_picture, int *frame_size, float quality) { int nb_frames, i, ret, format_video_sync; AVFrame *final_picture; AVCodecContext *enc, *dec; double sync_ipts; enc = ost->st->codec; dec = ist->st->codec; sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base); /* by default, we output a single frame */ nb_frames = 1; *frame_size = 0; format_video_sync = video_sync_method; if (format_video_sync < 0) format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1; if (format_video_sync) { double vdelta = sync_ipts - ost->sync_opts; //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c if (vdelta < -1.1) nb_frames = 0; else if (format_video_sync == 2) { if(vdelta<=-0.6){ nb_frames=0; }else if(vdelta>0.6) ost->sync_opts= lrintf(sync_ipts); }else if (vdelta > 1.1) nb_frames = lrintf(vdelta); //fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, get_sync_ipts(ost), nb_frames); if (nb_frames == 0){ ++nb_frames_drop; if (verbose>2) fprintf(stderr, "*** drop!\n"); }else if (nb_frames > 1) { nb_frames_dup += nb_frames - 1; if (verbose>2) fprintf(stderr, "*** %d dup!\n", nb_frames-1); } }else ost->sync_opts= lrintf(sync_ipts); nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number); if (nb_frames <= 0) return; do_video_resample(ost, ist, in_picture, &final_picture); /* duplicates frame if needed */ for(i=0;iindex; if (s->oformat->flags & AVFMT_RAWPICTURE) { /* raw pictures are written as AVPicture structure to avoid any copies. We support temporarily the older method. */ AVFrame* old_frame = enc->coded_frame; enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack pkt.data= (uint8_t *)final_picture; pkt.size= sizeof(AVPicture); pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base); pkt.flags |= AV_PKT_FLAG_KEY; write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters); enc->coded_frame = old_frame; } else { AVFrame big_picture; big_picture= *final_picture; /* better than nothing: use input picture interlaced settings */ big_picture.interlaced_frame = in_picture->interlaced_frame; if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) { if(top_field_first == -1) big_picture.top_field_first = in_picture->top_field_first; else big_picture.top_field_first = top_field_first; } /* handles same_quant here. This is not correct because it may not be a global option */ big_picture.quality = quality; if(!me_threshold) big_picture.pict_type = 0; // big_picture.pts = AV_NOPTS_VALUE; big_picture.pts= ost->sync_opts; // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den); //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts); if (ost->forced_kf_index < ost->forced_kf_count && big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) { big_picture.pict_type = AV_PICTURE_TYPE_I; ost->forced_kf_index++; } ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, &big_picture); if (ret < 0) { fprintf(stderr, "Video encoding failed\n"); exit_program(1); } if(ret>0){ pkt.data= bit_buffer; pkt.size= ret; if(enc->coded_frame->pts != AV_NOPTS_VALUE) pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base); /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n", pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1, pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/ if(enc->coded_frame->key_frame) pkt.flags |= AV_PKT_FLAG_KEY; write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters); *frame_size = ret; video_size += ret; //fprintf(stderr,"\nFrame: %3d size: %5d type: %d", // enc->frame_number-1, ret, enc->pict_type); /* if two pass, output log */ if (ost->logfile && enc->stats_out) { fprintf(ost->logfile, "%s", enc->stats_out); } } } ost->sync_opts++; ost->frame_number++; } } static double psnr(double d){ return -10.0*log(d)/log(10.0); } static void do_video_stats(AVFormatContext *os, OutputStream *ost, int frame_size) { AVCodecContext *enc; int frame_number; double ti1, bitrate, avg_bitrate; /* this is executed just the first time do_video_stats is called */ if (!vstats_file) { vstats_file = fopen(vstats_filename, "w"); if (!vstats_file) { perror("fopen"); exit_program(1); } } enc = ost->st->codec; if (enc->codec_type == AVMEDIA_TYPE_VIDEO) { frame_number = ost->frame_number; fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA); if (enc->flags&CODEC_FLAG_PSNR) fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0))); fprintf(vstats_file,"f_size= %6d ", frame_size); /* compute pts value */ ti1 = ost->sync_opts * av_q2d(enc->time_base); if (ti1 < 0.01) ti1 = 0.01; bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0; avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0; fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ", (double)video_size / 1024, ti1, bitrate, avg_bitrate); fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type)); } } static void print_report(OutputFile *output_files, OutputStream *ost_table, int nb_ostreams, int is_last_report, int64_t timer_start) { char buf[1024]; OutputStream *ost; AVFormatContext *oc; int64_t total_size; AVCodecContext *enc; int frame_number, vid, i; double bitrate; int64_t pts = INT64_MAX; static int64_t last_time = -1; static int qp_histogram[52]; if (!is_last_report) { int64_t cur_time; /* display the report every 0.5 seconds */ cur_time = av_gettime(); if (last_time == -1) { last_time = cur_time; return; } if ((cur_time - last_time) < 500000) return; last_time = cur_time; } oc = output_files[0].ctx; total_size = avio_size(oc->pb); if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too total_size= avio_tell(oc->pb); buf[0] = '\0'; vid = 0; for(i=0;ist->codec; if (!ost->st->stream_copy && enc->coded_frame) q = enc->coded_frame->quality/(float)FF_QP2LAMBDA; if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) { snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q); } if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) { float t = (av_gettime()-timer_start) / 1000000.0; frame_number = ost->frame_number; snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ", frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q); if(is_last_report) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L"); if(qp_hist){ int j; int qp = lrintf(q); if(qp>=0 && qpflags&CODEC_FLAG_PSNR){ int j; double error, error_sum=0; double scale, scale_sum=0; char type[3]= {'Y','U','V'}; snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR="); for(j=0; j<3; j++){ if(is_last_report){ error= enc->error[j]; scale= enc->width*enc->height*255.0*255.0*frame_number; }else{ error= enc->coded_frame->error[j]; scale= enc->width*enc->height*255.0*255.0; } if(j) scale/=4; error_sum += error; scale_sum += scale; snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale)); } snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum)); } vid = 1; } /* compute min output value */ pts = FFMIN(pts, av_rescale_q(ost->st->pts.val, ost->st->time_base, AV_TIME_BASE_Q)); } if (verbose > 0 || is_last_report) { int hours, mins, secs, us; secs = pts / AV_TIME_BASE; us = pts % AV_TIME_BASE; mins = secs / 60; secs %= 60; hours = mins / 60; mins %= 60; bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0; snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "size=%8.0fkB time=", total_size / 1024.0); snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%02d:%02d:%02d.%02d ", hours, mins, secs, (100 * us) / AV_TIME_BASE); snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "bitrate=%6.1fkbits/s", bitrate); if (nb_frames_dup || nb_frames_drop) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d", nb_frames_dup, nb_frames_drop); if (verbose >= 0) fprintf(stderr, "%s \r", buf); fflush(stderr); } if (is_last_report && verbose >= 0){ int64_t raw= audio_size + video_size + extra_size; fprintf(stderr, "\n"); fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n", video_size/1024.0, audio_size/1024.0, extra_size/1024.0, 100.0*(total_size - raw)/raw ); } } static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size) { int fill_char = 0x00; if (sample_fmt == AV_SAMPLE_FMT_U8) fill_char = 0x80; memset(buf, fill_char, size); } static void flush_encoders(OutputStream *ost_table, int nb_ostreams) { int i, ret; for (i = 0; i < nb_ostreams; i++) { OutputStream *ost = &ost_table[i]; AVCodecContext *enc = ost->st->codec; AVFormatContext *os = output_files[ost->file_index].ctx; if (!ost->encoding_needed) continue; if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1) continue; if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE)) continue; for(;;) { AVPacket pkt; int fifo_bytes; av_init_packet(&pkt); pkt.stream_index= ost->index; switch (ost->st->codec->codec_type) { case AVMEDIA_TYPE_AUDIO: fifo_bytes = av_fifo_size(ost->fifo); ret = 0; /* encode any samples remaining in fifo */ if (fifo_bytes > 0) { int osize = av_get_bytes_per_sample(enc->sample_fmt); int fs_tmp = enc->frame_size; av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL); if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) { enc->frame_size = fifo_bytes / (osize * enc->channels); } else { /* pad */ int frame_bytes = enc->frame_size*osize*enc->channels; if (allocated_audio_buf_size < frame_bytes) exit_program(1); generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes); } ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf); pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den, ost->st->time_base.num, enc->sample_rate); enc->frame_size = fs_tmp; } if (ret <= 0) { ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL); } if (ret < 0) { fprintf(stderr, "Audio encoding failed\n"); exit_program(1); } audio_size += ret; pkt.flags |= AV_PKT_FLAG_KEY; break; case AVMEDIA_TYPE_VIDEO: ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL); if (ret < 0) { fprintf(stderr, "Video encoding failed\n"); exit_program(1); } video_size += ret; if(enc->coded_frame && enc->coded_frame->key_frame) pkt.flags |= AV_PKT_FLAG_KEY; if (ost->logfile && enc->stats_out) { fprintf(ost->logfile, "%s", enc->stats_out); } break; default: ret=-1; } if (ret <= 0) break; pkt.data = bit_buffer; pkt.size = ret; if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE) pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base); write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters); } } } /* pkt = NULL means EOF (needed to flush decoder buffers) */ static int output_packet(InputStream *ist, int ist_index, OutputStream *ost_table, int nb_ostreams, const AVPacket *pkt) { AVFormatContext *os; OutputStream *ost; int ret, i; int got_output; AVFrame picture; void *buffer_to_free = NULL; static unsigned int samples_size= 0; AVSubtitle subtitle, *subtitle_to_free; int64_t pkt_pts = AV_NOPTS_VALUE; #if CONFIG_AVFILTER int frame_available; #endif float quality; AVPacket avpkt; int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt); if(ist->next_pts == AV_NOPTS_VALUE) ist->next_pts= ist->pts; if (pkt == NULL) { /* EOF handling */ av_init_packet(&avpkt); avpkt.data = NULL; avpkt.size = 0; goto handle_eof; } else { avpkt = *pkt; } if(pkt->dts != AV_NOPTS_VALUE) ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q); if(pkt->pts != AV_NOPTS_VALUE) pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q); //while we have more to decode or while the decoder did output something on EOF while (avpkt.size > 0 || (!pkt && got_output)) { uint8_t *data_buf, *decoded_data_buf; int data_size, decoded_data_size; handle_eof: ist->pts= ist->next_pts; if(avpkt.size && avpkt.size != pkt->size && ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){ fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index); ist->showed_multi_packet_warning=1; } /* decode the packet if needed */ decoded_data_buf = NULL; /* fail safe */ decoded_data_size= 0; data_buf = avpkt.data; data_size = avpkt.size; subtitle_to_free = NULL; if (ist->decoding_needed) { switch(ist->st->codec->codec_type) { case AVMEDIA_TYPE_AUDIO:{ if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) { samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE); av_free(samples); samples= av_malloc(samples_size); } decoded_data_size= samples_size; /* XXX: could avoid copy if PCM 16 bits with same endianness as CPU */ ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size, &avpkt); if (ret < 0) return ret; avpkt.data += ret; avpkt.size -= ret; data_size = ret; got_output = decoded_data_size > 0; /* Some bug in mpeg audio decoder gives */ /* decoded_data_size < 0, it seems they are overflows */ if (!got_output) { /* no audio frame */ continue; } decoded_data_buf = (uint8_t *)samples; ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) / (ist->st->codec->sample_rate * ist->st->codec->channels); break;} case AVMEDIA_TYPE_VIDEO: decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2; /* XXX: allocate picture correctly */ avcodec_get_frame_defaults(&picture); avpkt.pts = pkt_pts; avpkt.dts = ist->pts; pkt_pts = AV_NOPTS_VALUE; ret = avcodec_decode_video2(ist->st->codec, &picture, &got_output, &avpkt); quality = same_quant ? picture.quality : 0; if (ret < 0) return ret; if (!got_output) { /* no picture yet */ goto discard_packet; } ist->next_pts = ist->pts = picture.best_effort_timestamp; if (ist->st->codec->time_base.num != 0) { int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame; ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->time_base.num * ticks) / ist->st->codec->time_base.den; } avpkt.size = 0; buffer_to_free = NULL; pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free); break; case AVMEDIA_TYPE_SUBTITLE: ret = avcodec_decode_subtitle2(ist->st->codec, &subtitle, &got_output, &avpkt); if (ret < 0) return ret; if (!got_output) { goto discard_packet; } subtitle_to_free = &subtitle; avpkt.size = 0; break; default: return -1; } } else { switch(ist->st->codec->codec_type) { case AVMEDIA_TYPE_AUDIO: ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) / ist->st->codec->sample_rate; break; case AVMEDIA_TYPE_VIDEO: if (ist->st->codec->time_base.num != 0) { int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame; ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->time_base.num * ticks) / ist->st->codec->time_base.den; } break; } avpkt.size = 0; } #if CONFIG_AVFILTER if(ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) if (start_time == 0 || ist->pts >= start_time) { for(i=0;iinput_video_filter && ost->source_index == ist_index) { if (!picture.sample_aspect_ratio.num) picture.sample_aspect_ratio = ist->st->sample_aspect_ratio; picture.pts = ist->pts; av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, AV_VSRC_BUF_FLAG_OVERWRITE); } } } #endif // preprocess audio (volume) if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) { if (audio_volume != 256) { short *volp; volp = samples; for(i=0;i<(decoded_data_size / sizeof(short));i++) { int v = ((*volp) * audio_volume + 128) >> 8; *volp++ = av_clip_int16(v); } } } /* frame rate emulation */ if (rate_emu) { int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE); int64_t now = av_gettime() - ist->start; if (pts > now) usleep(pts - now); } /* if output time reached then transcode raw format, encode packets and output them */ for (i = 0; i < nb_ostreams; i++) { OutputFile *of = &output_files[ost_table[i].file_index]; int frame_size; ost = &ost_table[i]; if (ost->source_index != ist_index) continue; if (of->start_time && ist->pts < of->start_time) continue; if (of->recording_time != INT64_MAX && av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time, (AVRational){1, 1000000}) >= 0) { ost->is_past_recording_time = 1; continue; } #if CONFIG_AVFILTER frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]); while (frame_available) { if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter) { AVRational ist_pts_tb = ost->output_video_filter->inputs[0]->time_base; if (av_vsink_buffer_get_video_buffer_ref(ost->output_video_filter, &ost->picref, 0) < 0) goto cont; if (ost->picref) { avfilter_fill_frame_from_video_buffer_ref(&picture, ost->picref); ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q); } } #endif os = output_files[ost->file_index].ctx; /* set the input output pts pairs */ //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE; if (ost->encoding_needed) { av_assert0(ist->decoding_needed); switch(ost->st->codec->codec_type) { case AVMEDIA_TYPE_AUDIO: do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size); break; case AVMEDIA_TYPE_VIDEO: #if CONFIG_AVFILTER if (ost->picref->video && !ost->frame_aspect_ratio) ost->st->codec->sample_aspect_ratio = ost->picref->video->sample_aspect_ratio; #endif do_video_out(os, ost, ist, &picture, &frame_size, same_quant ? quality : ost->st->codec->global_quality); if (vstats_filename && frame_size) do_video_stats(os, ost, frame_size); break; case AVMEDIA_TYPE_SUBTITLE: do_subtitle_out(os, ost, ist, &subtitle, pkt->pts); break; default: abort(); } } else { AVFrame avframe; //FIXME/XXX remove this AVPicture pict; AVPacket opkt; int64_t ost_tb_start_time= av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base); av_init_packet(&opkt); if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes) #if !CONFIG_AVFILTER continue; #else goto cont; #endif /* no reencoding needed : output the packet directly */ /* force the input stream PTS */ avcodec_get_frame_defaults(&avframe); ost->st->codec->coded_frame= &avframe; avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY; if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) audio_size += data_size; else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) { video_size += data_size; ost->sync_opts++; } opkt.stream_index= ost->index; if(pkt->pts != AV_NOPTS_VALUE) opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time; else opkt.pts= AV_NOPTS_VALUE; if (pkt->dts == AV_NOPTS_VALUE) opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base); else opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base); opkt.dts -= ost_tb_start_time; opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base); opkt.flags= pkt->flags; //FIXME remove the following 2 lines they shall be replaced by the bitstream filters if( ost->st->codec->codec_id != CODEC_ID_H264 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO ) { if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY)) opkt.destruct= av_destruct_packet; } else { opkt.data = data_buf; opkt.size = data_size; } if (os->oformat->flags & AVFMT_RAWPICTURE) { /* store AVPicture in AVPacket, as expected by the output format */ avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height); opkt.data = (uint8_t *)&pict; opkt.size = sizeof(AVPicture); opkt.flags |= AV_PKT_FLAG_KEY; } write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters); ost->st->codec->frame_number++; ost->frame_number++; av_free_packet(&opkt); } #if CONFIG_AVFILTER cont: frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) && ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]); avfilter_unref_buffer(ost->picref); } #endif } av_free(buffer_to_free); /* XXX: allocate the subtitles in the codec ? */ if (subtitle_to_free) { avsubtitle_free(subtitle_to_free); subtitle_to_free = NULL; } } discard_packet: return 0; } static void print_sdp(OutputFile *output_files, int n) { char sdp[2048]; int i; AVFormatContext **avc = av_malloc(sizeof(*avc)*n); if (!avc) exit_program(1); for (i = 0; i < n; i++) avc[i] = output_files[i].ctx; av_sdp_create(avc, n, sdp, sizeof(sdp)); printf("SDP:\n%s\n", sdp); fflush(stdout); av_freep(&avc); } static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams, char *error, int error_len) { int i; InputStream *ist = &input_streams[ist_index]; if (ist->decoding_needed) { AVCodec *codec = ist->dec; if (!codec) { snprintf(error, sizeof(error), "Decoder (codec %s) not found for input stream #%d.%d", avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index); return AVERROR(EINVAL); } if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) { snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d", ist->file_index, ist->st->index); return AVERROR(EINVAL); } assert_codec_experimental(ist->st->codec, 0); assert_avoptions(ist->opts); } ist->pts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames*AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0; ist->next_pts = AV_NOPTS_VALUE; ist->is_start = 1; return 0; } static int transcode_init(OutputFile *output_files, int nb_output_files, InputFile *input_files, int nb_input_files) { int ret = 0, i; AVFormatContext *os; AVCodecContext *codec, *icodec; OutputStream *ost; InputStream *ist; char error[1024]; int want_sdp = 1; if (rate_emu) for (i = 0; i < nb_input_streams; i++) input_streams[i].start = av_gettime(); /* output stream init */ for(i=0;inb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) { av_dump_format(os, i, os->filename, 1); fprintf(stderr, "Output file #%d does not contain any stream\n", i); return AVERROR(EINVAL); } } /* for each output stream, we compute the right encoding parameters */ for (i = 0; i < nb_output_streams; i++) { ost = &output_streams[i]; os = output_files[ost->file_index].ctx; ist = &input_streams[ost->source_index]; codec = ost->st->codec; icodec = ist->st->codec; ost->st->disposition = ist->st->disposition; codec->bits_per_raw_sample= icodec->bits_per_raw_sample; codec->chroma_sample_location = icodec->chroma_sample_location; if (ost->st->stream_copy) { uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE; if (extra_size > INT_MAX) { return AVERROR(EINVAL); } /* if stream_copy is selected, no need to decode or encode */ codec->codec_id = icodec->codec_id; codec->codec_type = icodec->codec_type; if(!codec->codec_tag){ if( !os->oformat->codec_tag || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0) codec->codec_tag = icodec->codec_tag; } codec->bit_rate = icodec->bit_rate; codec->rc_max_rate = icodec->rc_max_rate; codec->rc_buffer_size = icodec->rc_buffer_size; codec->extradata= av_mallocz(extra_size); if (!codec->extradata) { return AVERROR(ENOMEM); } memcpy(codec->extradata, icodec->extradata, icodec->extradata_size); codec->extradata_size= icodec->extradata_size; codec->time_base = ist->st->time_base; if(!strcmp(os->oformat->name, "avi")) { if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500){ codec->time_base = icodec->time_base; codec->time_base.num *= icodec->ticks_per_frame; codec->time_base.den *= 2; } } else if(!(os->oformat->flags & AVFMT_VARIABLE_FPS)) { if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500){ codec->time_base = icodec->time_base; codec->time_base.num *= icodec->ticks_per_frame; } } av_reduce(&codec->time_base.num, &codec->time_base.den, codec->time_base.num, codec->time_base.den, INT_MAX); switch(codec->codec_type) { case AVMEDIA_TYPE_AUDIO: if(audio_volume != 256) { fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n"); exit_program(1); } codec->channel_layout = icodec->channel_layout; codec->sample_rate = icodec->sample_rate; codec->channels = icodec->channels; codec->frame_size = icodec->frame_size; codec->audio_service_type = icodec->audio_service_type; codec->block_align= icodec->block_align; if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3) codec->block_align= 0; if(codec->codec_id == CODEC_ID_AC3) codec->block_align= 0; break; case AVMEDIA_TYPE_VIDEO: codec->pix_fmt = icodec->pix_fmt; codec->width = icodec->width; codec->height = icodec->height; codec->has_b_frames = icodec->has_b_frames; if (!codec->sample_aspect_ratio.num) { codec->sample_aspect_ratio = ost->st->sample_aspect_ratio = ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio : ist->st->codec->sample_aspect_ratio.num ? ist->st->codec->sample_aspect_ratio : (AVRational){0, 1}; } break; case AVMEDIA_TYPE_SUBTITLE: codec->width = icodec->width; codec->height = icodec->height; break; case AVMEDIA_TYPE_DATA: break; default: abort(); } } else { if (!ost->enc) ost->enc = avcodec_find_encoder(ost->st->codec->codec_id); switch(codec->codec_type) { case AVMEDIA_TYPE_AUDIO: ost->fifo= av_fifo_alloc(1024); if (!ost->fifo) { return AVERROR(ENOMEM); } ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE); if (!codec->sample_rate) { codec->sample_rate = icodec->sample_rate; } choose_sample_rate(ost->st, ost->enc); codec->time_base = (AVRational){1, codec->sample_rate}; if (codec->sample_fmt == AV_SAMPLE_FMT_NONE) codec->sample_fmt = icodec->sample_fmt; choose_sample_fmt(ost->st, ost->enc); if (!codec->channels) { codec->channels = icodec->channels; codec->channel_layout = icodec->channel_layout; } if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels) codec->channel_layout = 0; ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1; icodec->request_channels = codec->channels; ist->decoding_needed = 1; ost->encoding_needed = 1; ost->resample_sample_fmt = icodec->sample_fmt; ost->resample_sample_rate = icodec->sample_rate; ost->resample_channels = icodec->channels; break; case AVMEDIA_TYPE_VIDEO: if (codec->pix_fmt == PIX_FMT_NONE) codec->pix_fmt = icodec->pix_fmt; choose_pixel_fmt(ost->st, ost->enc); if (ost->st->codec->pix_fmt == PIX_FMT_NONE) { fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n"); exit_program(1); } if (!codec->width || !codec->height) { codec->width = icodec->width; codec->height = icodec->height; } ost->video_resample = codec->width != icodec->width || codec->height != icodec->height || codec->pix_fmt != icodec->pix_fmt; if (ost->video_resample) { codec->bits_per_raw_sample= frame_bits_per_raw_sample; } ost->resample_height = icodec->height; ost->resample_width = icodec->width; ost->resample_pix_fmt= icodec->pix_fmt; ost->encoding_needed = 1; ist->decoding_needed = 1; if (!ost->frame_rate.num) ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1}; if (ost->enc && ost->enc->supported_framerates && !force_fps) { int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates); ost->frame_rate = ost->enc->supported_framerates[idx]; } codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num}; if( av_q2d(codec->time_base) < 0.001 && video_sync_method && (video_sync_method==1 || (video_sync_method<0 && !(os->oformat->flags & AVFMT_VARIABLE_FPS)))){ av_log(os, AV_LOG_WARNING, "Frame rate very high for a muxer not effciciently supporting it.\n" "Please consider specifiying a lower framerate, a different muxer or -vsync 2\n"); } #if CONFIG_AVFILTER if (configure_video_filters(ist, ost)) { fprintf(stderr, "Error opening filters!\n"); exit(1); } #endif break; case AVMEDIA_TYPE_SUBTITLE: ost->encoding_needed = 1; ist->decoding_needed = 1; break; default: abort(); break; } /* two pass mode */ if (ost->encoding_needed && codec->codec_id != CODEC_ID_H264 && (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) { char logfilename[1024]; FILE *f; snprintf(logfilename, sizeof(logfilename), "%s-%d.log", pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX, i); if (codec->flags & CODEC_FLAG_PASS1) { f = fopen(logfilename, "wb"); if (!f) { fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno)); exit_program(1); } ost->logfile = f; } else { char *logbuffer; size_t logbuffer_size; if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) { fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename); exit_program(1); } codec->stats_in = logbuffer; } } } if(codec->codec_type == AVMEDIA_TYPE_VIDEO){ /* maximum video buffer size is 6-bytes per pixel, plus DPX header size */ int size= codec->width * codec->height; bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 1664); } } if (!bit_buffer) bit_buffer = av_malloc(bit_buffer_size); if (!bit_buffer) { fprintf(stderr, "Cannot allocate %d bytes output buffer\n", bit_buffer_size); return AVERROR(ENOMEM); } /* open each encoder */ for (i = 0; i < nb_output_streams; i++) { ost = &output_streams[i]; if (ost->encoding_needed) { AVCodec *codec = ost->enc; AVCodecContext *dec = input_streams[ost->source_index].st->codec; if (!codec) { snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d.%d", avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index); ret = AVERROR(EINVAL); goto dump_format; } if (dec->subtitle_header) { ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size); if (!ost->st->codec->subtitle_header) { ret = AVERROR(ENOMEM); goto dump_format; } memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size); ost->st->codec->subtitle_header_size = dec->subtitle_header_size; } if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) { snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height", ost->file_index, ost->index); ret = AVERROR(EINVAL); goto dump_format; } assert_codec_experimental(ost->st->codec, 1); assert_avoptions(ost->opts); if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000) av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low." "It takes bits/s as argument, not kbits/s\n"); extra_size += ost->st->codec->extradata_size; } } /* init input streams */ for (i = 0; i < nb_input_streams; i++) if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error)) < 0)) goto dump_format; /* open files and write file headers */ for (i = 0; i < nb_output_files; i++) { os = output_files[i].ctx; if (avformat_write_header(os, &output_files[i].opts) < 0) { snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i); ret = AVERROR(EINVAL); goto dump_format; } // assert_avoptions(output_files[i].opts); if (strcmp(os->oformat->name, "rtp")) { want_sdp = 0; } } dump_format: /* dump the file output parameters - cannot be done before in case of stream copy */ for(i=0;ifilename, 1); } /* dump the stream mapping */ if (verbose >= 0) { fprintf(stderr, "Stream mapping:\n"); for (i = 0; i < nb_output_streams;i ++) { ost = &output_streams[i]; fprintf(stderr, " Stream #%d.%d -> #%d.%d", input_streams[ost->source_index].file_index, input_streams[ost->source_index].st->index, ost->file_index, ost->index); if (ost->sync_ist != &input_streams[ost->source_index]) fprintf(stderr, " [sync #%d.%d]", ost->sync_ist->file_index, ost->sync_ist->st->index); if (ost->st->stream_copy) fprintf(stderr, " (copy)"); else fprintf(stderr, " (%s -> %s)", input_streams[ost->source_index].dec ? input_streams[ost->source_index].dec->name : "?", ost->enc ? ost->enc->name : "?"); fprintf(stderr, "\n"); } } if (ret) { fprintf(stderr, "%s\n", error); return ret; } if (want_sdp) { print_sdp(output_files, nb_output_files); } return 0; } /* * The following code is the main loop of the file converter */ static int transcode(OutputFile *output_files, int nb_output_files, InputFile *input_files, int nb_input_files) { int ret, i; AVFormatContext *is, *os; OutputStream *ost; InputStream *ist; uint8_t *no_packet; int no_packet_count=0; int64_t timer_start; int key; if (!(no_packet = av_mallocz(nb_input_files))) exit_program(1); ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files); if (ret < 0) goto fail; if (!using_stdin) { if(verbose >= 0) fprintf(stderr, "Press [q] to stop, [?] for help\n"); avio_set_interrupt_cb(decode_interrupt_cb); } term_init(); timer_start = av_gettime(); for(; received_sigterm == 0;) { int file_index, ist_index; AVPacket pkt; int64_t ipts_min; double opts_min; ipts_min= INT64_MAX; opts_min= 1e100; /* if 'q' pressed, exits */ if (!using_stdin) { if (q_pressed) break; /* read_key() returns 0 on EOF */ key = read_key(); if (key == 'q') break; if (key == '+') verbose++; if (key == '-') verbose--; if (key == 's') qp_hist ^= 1; if (key == 'h'){ if (do_hex_dump){ do_hex_dump = do_pkt_dump = 0; } else if(do_pkt_dump){ do_hex_dump = 1; } else do_pkt_dump = 1; av_log_set_level(AV_LOG_DEBUG); } if (key == 'c' || key == 'C'){ char ret[4096], target[64], cmd[256], arg[256]={0}; double ts; fprintf(stderr, "\nEnter command: