/* * FFmpeg main * Copyright (c) 2000-2003 Fabrice Bellard * * This library 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 of the License, or (at your option) any later version. * * This library 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 this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #define HAVE_AV_CONFIG_H #include "avformat.h" #include "framehook.h" #ifndef CONFIG_WIN32 #include #include #include #include #include #include #include #endif #ifdef CONFIG_OS2 #include #include #include #endif #include #include "cmdutils.h" #if !defined(INFINITY) && defined(HUGE_VAL) #define INFINITY HUGE_VAL #endif /* select an input stream for an output stream */ typedef struct AVStreamMap { int file_index; int stream_index; } AVStreamMap; extern const OptionDef options[]; static void show_help(void); static void show_license(void); #define MAX_FILES 20 static AVFormatContext *input_files[MAX_FILES]; static int nb_input_files = 0; static AVFormatContext *output_files[MAX_FILES]; static int nb_output_files = 0; static AVStreamMap stream_maps[MAX_FILES]; static int nb_stream_maps; static AVInputFormat *file_iformat; static AVOutputFormat *file_oformat; static AVImageFormat *image_format; static int frame_width = 160; static int frame_height = 128; static float frame_aspect_ratio = 0; static enum PixelFormat frame_pix_fmt = PIX_FMT_YUV420P; static int frame_topBand = 0; static int frame_bottomBand = 0; static int frame_leftBand = 0; static int frame_rightBand = 0; static int frame_rate = 25; static int frame_rate_base = 1; static int video_bit_rate = 200*1000; static int video_bit_rate_tolerance = 4000*1000; static float video_qscale = 0; static int video_qmin = 2; static int video_qmax = 31; static int video_mb_qmin = 2; static int video_mb_qmax = 31; static int video_qdiff = 3; static float video_qblur = 0.5; static float video_qcomp = 0.5; static uint16_t *intra_matrix = NULL; static uint16_t *inter_matrix = NULL; #if 0 //experimental, (can be removed) static float video_rc_qsquish=1.0; static float video_rc_qmod_amp=0; static int video_rc_qmod_freq=0; #endif static char *video_rc_override_string=NULL; static char *video_rc_eq="tex^qComp"; static int video_rc_buffer_size=0; static float video_rc_buffer_aggressivity=1.0; static int video_rc_max_rate=0; static int video_rc_min_rate=0; static float video_rc_initial_cplx=0; static float video_b_qfactor = 1.25; static float video_b_qoffset = 1.25; static float video_i_qfactor = -0.8; static float video_i_qoffset = 0.0; static int me_method = ME_EPZS; static int video_disable = 0; static int video_codec_id = CODEC_ID_NONE; static int same_quality = 0; static int b_frames = 0; static int mb_decision = FF_MB_DECISION_SIMPLE; static int use_4mv = 0; static int use_aic = 0; static int use_aiv = 0; static int use_umv = 0; static int do_deinterlace = 0; static int do_interlace = 0; static int workaround_bugs = FF_BUG_AUTODETECT; static int error_resilience = 2; static int error_concealment = 3; static int dct_algo = 0; static int idct_algo = 0; static int use_part = 0; static int packet_size = 0; static int strict = 0; static int debug = 0; extern int loop_input; /* currently a hack */ static int gop_size = 12; static int intra_only = 0; static int audio_sample_rate = 44100; static int audio_bit_rate = 64000; static int audio_disable = 0; static int audio_channels = 1; static int audio_codec_id = CODEC_ID_NONE; static int64_t recording_time = 0; static int64_t start_time = 0; static int file_overwrite = 0; static char *str_title = NULL; static char *str_author = NULL; static char *str_copyright = NULL; static char *str_comment = NULL; 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_vstats = 0; static int do_pass = 0; static int bitexact = 0; static char *pass_logfilename = NULL; static int audio_stream_copy = 0; static int video_stream_copy = 0; static int rate_emu = 0; static char *video_grab_format = "video4linux"; static char *video_device = NULL; static int video_channel = 0; static char *video_standard = "ntsc"; static char *audio_grab_format = "audio_device"; static char *audio_device = NULL; static int using_stdin = 0; static int using_vhook = 0; static int verbose = 1; #define DEFAULT_PASS_LOGFILENAME "ffmpeg2pass" typedef struct AVOutputStream { int file_index; /* file index */ int index; /* stream index in the output file */ int source_index; /* AVInputStream 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; double sync_ipts_offset; int64_t sync_opts; /* video only */ int video_resample; /* video_resample and video_crop are mutually exclusive */ AVPicture pict_tmp; /* temporary image for resampling */ ImgReSampleContext *img_resample_ctx; /* for image resampling */ int video_crop; /* video_resample and video_crop are mutually exclusive */ int topBand; /* cropping area sizes */ int leftBand; /* audio only */ int audio_resample; ReSampleContext *resample; /* for audio resampling */ FifoBuffer fifo; /* for compression: one audio fifo per codec */ FILE *logfile; } AVOutputStream; typedef struct AVInputStream { int file_index; int 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' */ int64_t sample_index; /* current sample */ int64_t start; /* time when read started */ unsigned long frame; /* current frame */ int64_t next_pts; /* synthetic pts for cases where pkt.pts is not defined */ int64_t pts; /* current pts */ } AVInputStream; typedef struct AVInputFile { int eof_reached; /* true if eof reached */ int ist_index; /* index of first stream in ist_table */ int buffer_size; /* current total buffer size */ int buffer_size_max; /* buffer size at which we consider we can stop buffering */ int nb_streams; /* nb streams we are aware of */ } AVInputFile; #ifndef CONFIG_WIN32 /* init terminal so that we can grab keys */ static struct termios oldtty; static void term_exit(void) { tcsetattr (0, TCSANOW, &oldtty); } static volatile sig_atomic_t received_sigterm = 0; static void sigterm_handler(int sig) { received_sigterm = sig; term_exit(); } static void term_init(void) { struct termios tty; tcgetattr (0, &tty); oldtty = tty; 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(SIGINT , sigterm_handler); /* Interrupt (ANSI). */ signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */ signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */ /* register a function to be called at normal program termination */ atexit(term_exit); #ifdef CONFIG_BEOS_NETSERVER fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK); #endif } /* read a key without blocking */ static int read_key(void) { int n = 1; unsigned char ch; #ifndef CONFIG_BEOS_NETSERVER struct timeval tv; fd_set rfds; FD_ZERO(&rfds); FD_SET(0, &rfds); tv.tv_sec = 0; tv.tv_usec = 0; n = select(1, &rfds, NULL, NULL, &tv); #endif if (n > 0) { n = read(0, &ch, 1); if (n == 1) return ch; return n; } return -1; } #else static volatile int received_sigterm = 0; /* no interactive support */ static void term_exit(void) { } static void term_init(void) { } static int read_key(void) { return 0; } #endif static int read_ffserver_streams(AVFormatContext *s, const char *filename) { int i, err; AVFormatContext *ic; err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL); if (err < 0) return err; /* copy stream format */ s->nb_streams = ic->nb_streams; for(i=0;inb_streams;i++) { AVStream *st; st = av_mallocz(sizeof(AVStream)); memcpy(st, ic->streams[i], sizeof(AVStream)); s->streams[i] = st; } av_close_input_file(ic); return 0; } #define MAX_AUDIO_PACKET_SIZE (128 * 1024) static void do_audio_out(AVFormatContext *s, AVOutputStream *ost, AVInputStream *ist, unsigned char *buf, int size) { uint8_t *buftmp; static uint8_t *audio_buf = NULL; static uint8_t *audio_out = NULL; const int audio_out_size= 4*MAX_AUDIO_PACKET_SIZE; int size_out, frame_bytes, ret; AVCodecContext *enc; /* SC: dynamic allocation of buffers */ if (!audio_buf) audio_buf = av_malloc(2*MAX_AUDIO_PACKET_SIZE); if (!audio_out) audio_out = av_malloc(audio_out_size); if (!audio_buf || !audio_out) return; /* Should signal an error ! */ enc = &ost->st->codec; if (ost->audio_resample) { buftmp = audio_buf; size_out = audio_resample(ost->resample, (short *)buftmp, (short *)buf, size / (ist->st->codec.channels * 2)); size_out = size_out * enc->channels * 2; } else { buftmp = buf; size_out = size; } /* now encode as many frames as possible */ if (enc->frame_size > 1) { /* output resampled raw samples */ fifo_write(&ost->fifo, buftmp, size_out, &ost->fifo.wptr); frame_bytes = enc->frame_size * 2 * enc->channels; while (fifo_read(&ost->fifo, audio_buf, frame_bytes, &ost->fifo.rptr) == 0) { ret = avcodec_encode_audio(enc, audio_out, audio_out_size, (short *)audio_buf); av_write_frame(s, ost->index, audio_out, ret); } } else { /* output a pcm frame */ /* XXX: change encoding codec API to avoid this ? */ switch(enc->codec->id) { case CODEC_ID_PCM_S16LE: case CODEC_ID_PCM_S16BE: case CODEC_ID_PCM_U16LE: case CODEC_ID_PCM_U16BE: break; default: size_out = size_out >> 1; break; } ret = avcodec_encode_audio(enc, audio_out, size_out, (short *)buftmp); av_write_frame(s, ost->index, audio_out, ret); } } static void pre_process_video_frame(AVInputStream *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 || using_vhook) { 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 (do_deinterlace){ if(avpicture_deinterlace(picture2, picture, dec->pix_fmt, dec->width, dec->height) < 0) { /* if error, do not deinterlace */ av_free(buf); buf = NULL; picture2 = picture; } } else { if (img_convert(picture2, dec->pix_fmt, picture, dec->pix_fmt, dec->width, dec->height) < 0) { /* if error, do not copy */ av_free(buf); buf = NULL; picture2 = picture; } } } else { picture2 = picture; } frame_hook_process(picture2, dec->pix_fmt, dec->width, dec->height); if (picture != picture2) *picture = *picture2; *bufp = buf; } /* we begin to correct av delay at this threshold */ #define AV_DELAY_MAX 0.100 static void do_video_out(AVFormatContext *s, AVOutputStream *ost, AVInputStream *ist, AVPicture *in_picture, int *frame_size, AVOutputStream *audio_sync) { int nb_frames, i, ret; AVPicture *final_picture, *formatted_picture; AVPicture picture_format_temp, picture_crop_temp; static uint8_t *video_buffer; uint8_t *buf = NULL, *buf1 = NULL; AVCodecContext *enc, *dec; enum PixelFormat target_pixfmt; #define VIDEO_BUFFER_SIZE (1024*1024) enc = &ost->st->codec; dec = &ist->st->codec; /* by default, we output a single frame */ nb_frames = 1; *frame_size = 0; /* NOTE: the A/V sync is always done by considering the audio is the master clock. It is suffisant for transcoding or playing, but not for the general case */ if (audio_sync) { /* compute the A-V delay and duplicate/remove frames if needed */ double adelta, vdelta, av_delay; adelta = audio_sync->sync_ipts - ((double)audio_sync->sync_opts * s->pts_num / s->pts_den); vdelta = ost->sync_ipts - ((double)ost->sync_opts * s->pts_num / s->pts_den); av_delay = adelta - vdelta; // printf("delay=%f\n", av_delay); if (av_delay < -AV_DELAY_MAX) nb_frames = 2; else if (av_delay > AV_DELAY_MAX) nb_frames = 0; } else { double vdelta; vdelta = (double)(ost->st->pts.val) * s->pts_num / s->pts_den - (ost->sync_ipts - ost->sync_ipts_offset); if (vdelta < 100 && vdelta > -100 && ost->sync_ipts_offset) { if (vdelta < -AV_DELAY_MAX) nb_frames = 2; else if (vdelta > AV_DELAY_MAX) nb_frames = 0; } else { ost->sync_ipts_offset -= vdelta; if (!ost->sync_ipts_offset) ost->sync_ipts_offset = 0.000001; /* one microsecond */ } } #if defined(AVSYNC_DEBUG) { static char *action[] = { "drop frame", "copy frame", "dup frame" }; if (audio_sync) fprintf(stderr, "Input APTS %12.6f, output APTS %12.6f, ", (double) audio_sync->sync_ipts, (double) audio_sync->st->pts.val * s->pts_num / s->pts_den); fprintf(stderr, "Input VPTS %12.6f, output VPTS %12.6f: %s\n", (double) ost->sync_ipts, (double) ost->st->pts.val * s->pts_num / s->pts_den, action[nb_frames]); } #endif if (nb_frames <= 0) return; if (!video_buffer) video_buffer = av_malloc(VIDEO_BUFFER_SIZE); if (!video_buffer) return; /* convert pixel format if needed */ target_pixfmt = ost->video_resample ? PIX_FMT_YUV420P : enc->pix_fmt; if (dec->pix_fmt != target_pixfmt) { int size; /* create temporary picture */ size = avpicture_get_size(target_pixfmt, dec->width, dec->height); buf = av_malloc(size); if (!buf) return; formatted_picture = &picture_format_temp; avpicture_fill(formatted_picture, buf, target_pixfmt, dec->width, dec->height); if (img_convert(formatted_picture, target_pixfmt, in_picture, dec->pix_fmt, dec->width, dec->height) < 0) { fprintf(stderr, "pixel format conversion not handled\n"); goto the_end; } } else { formatted_picture = in_picture; } /* XXX: resampling could be done before raw format convertion in some cases to go faster */ /* XXX: only works for YUV420P */ if (ost->video_resample) { final_picture = &ost->pict_tmp; img_resample(ost->img_resample_ctx, final_picture, formatted_picture); if (enc->pix_fmt != PIX_FMT_YUV420P) { int size; av_free(buf); /* create temporary picture */ size = avpicture_get_size(enc->pix_fmt, enc->width, enc->height); buf = av_malloc(size); if (!buf) return; final_picture = &picture_format_temp; avpicture_fill(final_picture, buf, enc->pix_fmt, enc->width, enc->height); if (img_convert(final_picture, enc->pix_fmt, &ost->pict_tmp, PIX_FMT_YUV420P, enc->width, enc->height) < 0) { fprintf(stderr, "pixel format conversion not handled\n"); goto the_end; } } } else if (ost->video_crop) { picture_crop_temp.data[0] = formatted_picture->data[0] + (ost->topBand * formatted_picture->linesize[0]) + ost->leftBand; picture_crop_temp.data[1] = formatted_picture->data[1] + ((ost->topBand >> 1) * formatted_picture->linesize[1]) + (ost->leftBand >> 1); picture_crop_temp.data[2] = formatted_picture->data[2] + ((ost->topBand >> 1) * formatted_picture->linesize[2]) + (ost->leftBand >> 1); picture_crop_temp.linesize[0] = formatted_picture->linesize[0]; picture_crop_temp.linesize[1] = formatted_picture->linesize[1]; picture_crop_temp.linesize[2] = formatted_picture->linesize[2]; final_picture = &picture_crop_temp; } else { final_picture = formatted_picture; } /* duplicates frame if needed */ /* XXX: pb because no interleaving */ for(i=0;ioformat->flags & AVFMT_RAWPICTURE) { /* raw pictures are written as AVPicture structure to avoid any copies. We support temorarily the older method. */ AVFrame* old_frame = enc->coded_frame; enc->coded_frame = dec->coded_frame; av_write_frame(s, ost->index, (uint8_t *)final_picture, sizeof(AVPicture)); enc->coded_frame = old_frame; } else { AVFrame big_picture; memset(&big_picture, 0, sizeof(AVFrame)); *(AVPicture*)&big_picture= *final_picture; /* handles sameq here. This is not correct because it may not be a global option */ if (same_quality) { big_picture.quality = ist->st->quality; }else big_picture.quality = ost->st->quality; ret = avcodec_encode_video(enc, video_buffer, VIDEO_BUFFER_SIZE, &big_picture); //enc->frame_number = enc->real_pict_num; av_write_frame(s, ost->index, video_buffer, ret); *frame_size = ret; //fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d", // enc->frame_number-1, enc->real_pict_num, ret, // enc->pict_type); /* if two pass, output log */ if (ost->logfile && enc->stats_out) { fprintf(ost->logfile, "%s", enc->stats_out); } } ost->frame_number++; } the_end: av_free(buf); av_free(buf1); } static double psnr(double d){ if(d==0) return INFINITY; return -10.0*log(d)/log(10.0); } static void do_video_stats(AVFormatContext *os, AVOutputStream *ost, int frame_size) { static FILE *fvstats=NULL; static int64_t total_size = 0; char filename[40]; time_t today2; struct tm *today; AVCodecContext *enc; int frame_number; int64_t ti; double ti1, bitrate, avg_bitrate; if (!fvstats) { today2 = time(NULL); today = localtime(&today2); sprintf(filename, "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min, today->tm_sec); fvstats = fopen(filename,"w"); if (!fvstats) { perror("fopen"); exit(1); } } ti = MAXINT64; enc = &ost->st->codec; total_size += frame_size; if (enc->codec_type == CODEC_TYPE_VIDEO) { frame_number = ost->frame_number; fprintf(fvstats, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA); if (enc->flags&CODEC_FLAG_PSNR) fprintf(fvstats, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0))); fprintf(fvstats,"f_size= %6d ", frame_size); /* compute pts value */ ti1 = (double)ost->st->pts.val * os->pts_num / os->pts_den; if (ti1 < 0.01) ti1 = 0.01; bitrate = (double)(frame_size * 8) * enc->frame_rate / enc->frame_rate_base / 1000.0; avg_bitrate = (double)(total_size * 8) / ti1 / 1000.0; fprintf(fvstats, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ", (double)total_size / 1024, ti1, bitrate, avg_bitrate); fprintf(fvstats,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type)); } } static void print_report(AVFormatContext **output_files, AVOutputStream **ost_table, int nb_ostreams, int is_last_report) { char buf[1024]; AVOutputStream *ost; AVFormatContext *oc, *os; int64_t total_size; AVCodecContext *enc; int frame_number, vid, i; double bitrate, ti1, pts; static int64_t last_time = -1; 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]; total_size = url_ftell(&oc->pb); buf[0] = '\0'; ti1 = 1e10; vid = 0; for(i=0;ifile_index]; enc = &ost->st->codec; if (vid && enc->codec_type == CODEC_TYPE_VIDEO) { sprintf(buf + strlen(buf), "q=%2.1f ", enc->coded_frame->quality/(float)FF_QP2LAMBDA); } if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) { frame_number = ost->frame_number; sprintf(buf + strlen(buf), "frame=%5d q=%2.1f ", frame_number, enc->coded_frame ? enc->coded_frame->quality/(float)FF_QP2LAMBDA : 0); if (enc->flags&CODEC_FLAG_PSNR) sprintf(buf + strlen(buf), "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0))); vid = 1; } /* compute min output value */ pts = (double)ost->st->pts.val * os->pts_num / os->pts_den; if ((pts < ti1) && (pts > 0)) ti1 = pts; } if (ti1 < 0.01) ti1 = 0.01; if (verbose || is_last_report) { bitrate = (double)(total_size * 8) / ti1 / 1000.0; sprintf(buf + strlen(buf), "size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s", (double)total_size / 1024, ti1, bitrate); fprintf(stderr, "%s \r", buf); fflush(stderr); } if (is_last_report) fprintf(stderr, "\n"); } /* * The following code is the main loop of the file converter */ static int av_encode(AVFormatContext **output_files, int nb_output_files, AVFormatContext **input_files, int nb_input_files, AVStreamMap *stream_maps, int nb_stream_maps) { int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0; AVFormatContext *is, *os; AVCodecContext *codec, *icodec; AVOutputStream *ost, **ost_table = NULL; AVInputStream *ist, **ist_table = NULL; AVInputFile *file_table; AVFormatContext *stream_no_data; int key; file_table= (AVInputFile*) av_mallocz(nb_input_files * sizeof(AVInputFile)); if (!file_table) goto fail; /* input stream init */ j = 0; for(i=0;inb_streams; j += is->nb_streams; } nb_istreams = j; ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *)); if (!ist_table) goto fail; for(i=0;inb_streams;k++) { ist = ist_table[j++]; ist->st = is->streams[k]; ist->file_index = i; ist->index = k; ist->discard = 1; /* the stream is discarded by default (changed later) */ if (ist->st->codec.rate_emu) { ist->start = av_gettime(); ist->frame = 0; } } } /* output stream init */ nb_ostreams = 0; for(i=0;inb_streams; } if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) { fprintf(stderr, "Number of stream maps must match number of output streams\n"); exit(1); } /* Sanity check the mapping args -- do the input files & streams exist? */ for(i=0;i nb_input_files - 1 || si < 0 || si > file_table[fi].nb_streams - 1) { fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si); exit(1); } } ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams); if (!ost_table) goto fail; for(i=0;inb_streams;i++) { int found; ost = ost_table[n++]; ost->file_index = k; ost->index = i; ost->st = os->streams[i]; if (nb_stream_maps > 0) { ost->source_index = file_table[stream_maps[n-1].file_index].ist_index + stream_maps[n-1].stream_index; /* Sanity check that the stream types match */ if (ist_table[ost->source_index]->st->codec.codec_type != ost->st->codec.codec_type) { fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n", stream_maps[n-1].file_index, stream_maps[n-1].stream_index, ost->file_index, ost->index); exit(1); } } else { /* get corresponding input stream index : we select the first one with the right type */ found = 0; for(j=0;jdiscard && ist->st->codec.codec_type == ost->st->codec.codec_type) { ost->source_index = j; found = 1; } } if (!found) { /* try again and reuse existing stream */ for(j=0;jst->codec.codec_type == ost->st->codec.codec_type) { ost->source_index = j; found = 1; } } if (!found) { fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n", ost->file_index, ost->index); exit(1); } } } ist = ist_table[ost->source_index]; ist->discard = 0; } } /* for each output stream, we compute the right encoding parameters */ for(i=0;isource_index]; codec = &ost->st->codec; icodec = &ist->st->codec; if (ost->st->stream_copy) { /* if stream_copy is selected, no need to decode or encode */ codec->codec_id = icodec->codec_id; codec->codec_type = icodec->codec_type; codec->codec_tag = icodec->codec_tag; codec->bit_rate = icodec->bit_rate; switch(codec->codec_type) { case CODEC_TYPE_AUDIO: codec->sample_rate = icodec->sample_rate; codec->channels = icodec->channels; break; case CODEC_TYPE_VIDEO: codec->frame_rate = icodec->frame_rate; codec->frame_rate_base = icodec->frame_rate_base; codec->width = icodec->width; codec->height = icodec->height; break; default: av_abort(); } } else { switch(codec->codec_type) { case CODEC_TYPE_AUDIO: if (fifo_init(&ost->fifo, 2 * MAX_AUDIO_PACKET_SIZE)) goto fail; if (codec->channels == icodec->channels && codec->sample_rate == icodec->sample_rate) { ost->audio_resample = 0; } else { if (codec->channels != icodec->channels && icodec->codec_id == CODEC_ID_AC3) { /* Special case for 5:1 AC3 input */ /* and mono or stereo output */ /* Request specific number of channels */ icodec->channels = codec->channels; if (codec->sample_rate == icodec->sample_rate) ost->audio_resample = 0; else { ost->audio_resample = 1; ost->resample = audio_resample_init(codec->channels, icodec->channels, codec->sample_rate, icodec->sample_rate); if(!ost->resample) { printf("Can't resample. Aborting.\n"); av_abort(); } } /* Request specific number of channels */ icodec->channels = codec->channels; } else { ost->audio_resample = 1; ost->resample = audio_resample_init(codec->channels, icodec->channels, codec->sample_rate, icodec->sample_rate); if(!ost->resample) { printf("Can't resample. Aborting.\n"); av_abort(); } } } ist->decoding_needed = 1; ost->encoding_needed = 1; break; case CODEC_TYPE_VIDEO: if (codec->width == icodec->width && codec->height == icodec->height && frame_topBand == 0 && frame_bottomBand == 0 && frame_leftBand == 0 && frame_rightBand == 0) { ost->video_resample = 0; ost->video_crop = 0; } else if ((codec->width == icodec->width - (frame_leftBand + frame_rightBand)) && (codec->height == icodec->height - (frame_topBand + frame_bottomBand))) { ost->video_resample = 0; ost->video_crop = 1; ost->topBand = frame_topBand; ost->leftBand = frame_leftBand; } else { uint8_t *buf; ost->video_resample = 1; ost->video_crop = 0; // cropping is handled as part of resample buf = av_malloc((codec->width * codec->height * 3) / 2); if (!buf) goto fail; ost->pict_tmp.data[0] = buf; ost->pict_tmp.data[1] = ost->pict_tmp.data[0] + (codec->width * codec->height); ost->pict_tmp.data[2] = ost->pict_tmp.data[1] + (codec->width * codec->height) / 4; ost->pict_tmp.linesize[0] = codec->width; ost->pict_tmp.linesize[1] = codec->width / 2; ost->pict_tmp.linesize[2] = codec->width / 2; ost->img_resample_ctx = img_resample_full_init( ost->st->codec.width, ost->st->codec.height, ist->st->codec.width, ist->st->codec.height, frame_topBand, frame_bottomBand, frame_leftBand, frame_rightBand); } ost->encoding_needed = 1; ist->decoding_needed = 1; break; default: av_abort(); } /* two pass mode */ if (ost->encoding_needed && (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) { char logfilename[1024]; FILE *f; int size; char *logbuffer; snprintf(logfilename, sizeof(logfilename), "%s-%d.log", pass_logfilename ? pass_logfilename : DEFAULT_PASS_LOGFILENAME, i); if (codec->flags & CODEC_FLAG_PASS1) { f = fopen(logfilename, "w"); if (!f) { perror(logfilename); exit(1); } ost->logfile = f; } else { /* read the log file */ f = fopen(logfilename, "r"); if (!f) { perror(logfilename); exit(1); } fseek(f, 0, SEEK_END); size = ftell(f); fseek(f, 0, SEEK_SET); logbuffer = av_malloc(size + 1); if (!logbuffer) { fprintf(stderr, "Could not allocate log buffer\n"); exit(1); } fread(logbuffer, 1, size, f); fclose(f); logbuffer[size] = '\0'; codec->stats_in = logbuffer; } } } } /* dump the file output parameters - cannot be done before in case of stream copy */ for(i=0;ifilename, 1); } /* dump the stream mapping */ fprintf(stderr, "Stream mapping:\n"); for(i=0;i #%d.%d\n", ist_table[ost->source_index]->file_index, ist_table[ost->source_index]->index, ost->file_index, ost->index); } /* open each encoder */ for(i=0;iencoding_needed) { AVCodec *codec; codec = avcodec_find_encoder(ost->st->codec.codec_id); if (!codec) { fprintf(stderr, "Unsupported codec for output stream #%d.%d\n", ost->file_index, ost->index); exit(1); } if (avcodec_open(&ost->st->codec, codec) < 0) { fprintf(stderr, "Error while opening codec for stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n", ost->file_index, ost->index); exit(1); } } } /* open each decoder */ for(i=0;idecoding_needed) { AVCodec *codec; codec = avcodec_find_decoder(ist->st->codec.codec_id); if (!codec) { fprintf(stderr, "Unsupported codec (id=%d) for input stream #%d.%d\n", ist->st->codec.codec_id, ist->file_index, ist->index); exit(1); } if (avcodec_open(&ist->st->codec, codec) < 0) { fprintf(stderr, "Error while opening codec for input stream #%d.%d\n", ist->file_index, ist->index); exit(1); } //if (ist->st->codec.codec_type == CODEC_TYPE_VIDEO) // ist->st->codec.flags |= CODEC_FLAG_REPEAT_FIELD; } } /* init pts */ for(i=0;ifile_index]; ist->pts = 0; ist->next_pts = 0; } /* compute buffer size max (should use a complete heuristic) */ for(i=0;ifile_index]; ist = ist_table[ost->source_index]; pts = (double)ost->st->pts.val * os->pts_num / os->pts_den; if (!file_table[ist->file_index].eof_reached && pts < pts_min) { pts_min = pts; file_index = ist->file_index; } } /* if none, if is finished */ if (file_index < 0) { break; } /* finish if recording time exhausted */ if (recording_time > 0 && pts_min >= (recording_time / 1000000.0)) break; /* read a frame from it and output it in the fifo */ is = input_files[file_index]; if (av_read_frame(is, &pkt) < 0) { file_table[file_index].eof_reached = 1; continue; } if (!pkt.size) { stream_no_data = is; } else { stream_no_data = 0; } if (do_pkt_dump) { av_pkt_dump(stdout, &pkt, do_hex_dump); } /* the following test is needed in case new streams appear dynamically in stream : we ignore them */ if (pkt.stream_index >= file_table[file_index].nb_streams) goto discard_packet; ist_index = file_table[file_index].ist_index + pkt.stream_index; ist = ist_table[ist_index]; if (ist->discard) goto discard_packet; //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size); if (pkt.pts != AV_NOPTS_VALUE) { ist->pts = pkt.pts; } else { ist->pts = ist->next_pts; } len = pkt.size; ptr = pkt.data; while (len > 0) { /* decode the packet if needed */ data_buf = NULL; /* fail safe */ data_size = 0; if (ist->decoding_needed) { switch(ist->st->codec.codec_type) { case CODEC_TYPE_AUDIO: /* XXX: could avoid copy if PCM 16 bits with same endianness as CPU */ ret = avcodec_decode_audio(&ist->st->codec, samples, &data_size, ptr, len); if (ret < 0) goto fail_decode; ptr += ret; len -= ret; /* Some bug in mpeg audio decoder gives */ /* data_size < 0, it seems they are overflows */ if (data_size <= 0) { /* no audio frame */ continue; } data_buf = (uint8_t *)samples; ist->next_pts += ((int64_t)AV_TIME_BASE * data_size) / (2 * ist->st->codec.channels); break; case CODEC_TYPE_VIDEO: { AVFrame big_picture; data_size = (ist->st->codec.width * ist->st->codec.height * 3) / 2; ret = avcodec_decode_video(&ist->st->codec, &big_picture, &got_picture, ptr, len); picture= *(AVPicture*)&big_picture; ist->st->quality= big_picture.quality; if (ret < 0) { fail_decode: fprintf(stderr, "Error while decoding stream #%d.%d\n", ist->file_index, ist->index); av_free_packet(&pkt); goto redo; } if (!got_picture) { /* no picture yet */ goto discard_packet; } if (ist->st->codec.frame_rate_base != 0) { ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec.frame_rate_base) / ist->st->codec.frame_rate; } len = 0; } break; default: goto fail_decode; } } else { data_buf = ptr; data_size = len; ret = len; len = 0; } buffer_to_free = NULL; if (ist->st->codec.codec_type == CODEC_TYPE_VIDEO) { pre_process_video_frame(ist, &picture, &buffer_to_free); } /* frame rate emulation */ if (ist->st->codec.rate_emu) { int64_t pts = av_rescale((int64_t) ist->frame * ist->st->codec.frame_rate_base, 1000000, ist->st->codec.frame_rate); int64_t now = av_gettime() - ist->start; if (pts > now) usleep(pts - now); ist->frame++; } #if 0 /* mpeg PTS deordering : if it is a P or I frame, the PTS is the one of the next displayed one */ /* XXX: add mpeg4 too ? */ if (ist->st->codec.codec_id == CODEC_ID_MPEG1VIDEO) { if (ist->st->codec.pict_type != B_TYPE) { int64_t tmp; tmp = ist->last_ip_pts; ist->last_ip_pts = ist->frac_pts.val; ist->frac_pts.val = tmp; } } #endif /* if output time reached then transcode raw format, encode packets and output them */ if (start_time == 0 || ist->pts >= start_time) for(i=0;isource_index == ist_index) { os = output_files[ost->file_index]; #if 0 printf("%d: got pts=%0.3f %0.3f\n", i, (double)pkt.pts / AV_TIME_BASE, ((double)ist->pts / AV_TIME_BASE) - ((double)ost->st->pts.val * os->pts_num / os->pts_den)); #endif /* set the input output pts pairs */ ost->sync_ipts = (double)ist->pts / AV_TIME_BASE; /* XXX: take into account the various fifos, in particular for audio */ ost->sync_opts = ost->st->pts.val; //printf("ipts=%lld sync_ipts=%f sync_opts=%lld pts.val=%lld pkt.pts=%lld\n", ist->pts, ost->sync_ipts, ost->sync_opts, ost->st->pts.val, pkt.pts); if (ost->encoding_needed) { switch(ost->st->codec.codec_type) { case CODEC_TYPE_AUDIO: do_audio_out(os, ost, ist, data_buf, data_size); break; case CODEC_TYPE_VIDEO: /* find an audio stream for synchro */ { int i; AVOutputStream *audio_sync, *ost1; audio_sync = NULL; for(i=0;ifile_index == ost->file_index && ost1->st->codec.codec_type == CODEC_TYPE_AUDIO) { audio_sync = ost1; break; } } do_video_out(os, ost, ist, &picture, &frame_size, audio_sync); if (do_vstats && frame_size) do_video_stats(os, ost, frame_size); } break; default: av_abort(); } } else { AVFrame avframe; /* no reencoding needed : output the packet directly */ /* force the input stream PTS */ memset(&avframe, 0, sizeof(AVFrame)); ost->st->codec.coded_frame= &avframe; avframe.key_frame = pkt.flags & PKT_FLAG_KEY; av_write_frame(os, ost->index, data_buf, data_size); ost->st->codec.frame_number++; ost->frame_number++; } } } av_free(buffer_to_free); } discard_packet: av_free_packet(&pkt); /* dump report by using the output first video and audio streams */ print_report(output_files, ost_table, nb_ostreams, 0); } term_exit(); /* dump report by using the first video and audio streams */ print_report(output_files, ost_table, nb_ostreams, 1); /* close each encoder */ for(i=0;iencoding_needed) { av_freep(&ost->st->codec.stats_in); avcodec_close(&ost->st->codec); } } /* close each decoder */ for(i=0;idecoding_needed) { avcodec_close(&ist->st->codec); } } /* write the trailer if needed and close file */ for(i=0;ilogfile) { fclose(ost->logfile); ost->logfile = NULL; } fifo_free(&ost->fifo); /* works even if fifo is not initialized but set to zero */ av_free(ost->pict_tmp.data[0]); if (ost->video_resample) img_resample_close(ost->img_resample_ctx); if (ost->audio_resample) audio_resample_close(ost->resample); av_free(ost); } } av_free(ost_table); } return ret; fail: ret = -ENOMEM; goto fail1; } #if 0 int file_read(const char *filename) { URLContext *h; unsigned char buffer[1024]; int len, i; if (url_open(&h, filename, O_RDONLY) < 0) { printf("could not open '%s'\n", filename); return -1; } for(;;) { len = url_read(h, buffer, sizeof(buffer)); if (len <= 0) break; for(i=0;inext) { if (!strcmp(arg, f->name)) break; } if (!f) { fprintf(stderr, "Unknown image format: '%s'\n", arg); exit(1); } image_format = f; } static void opt_format(const char *arg) { /* compatibility stuff for pgmyuv */ if (!strcmp(arg, "pgmyuv")) { opt_image_format(arg); arg = "image"; } file_iformat = av_find_input_format(arg); file_oformat = guess_format(arg, NULL, NULL); if (!file_iformat && !file_oformat) { fprintf(stderr, "Unknown input or output format: %s\n", arg); exit(1); } } static void opt_video_bitrate(const char *arg) { video_bit_rate = atoi(arg) * 1000; } static void opt_video_bitrate_tolerance(const char *arg) { video_bit_rate_tolerance = atoi(arg) * 1000; } static void opt_video_bitrate_max(const char *arg) { video_rc_max_rate = atoi(arg) * 1000; } static void opt_video_bitrate_min(const char *arg) { video_rc_min_rate = atoi(arg) * 1000; } static void opt_video_buffer_size(const char *arg) { video_rc_buffer_size = atoi(arg) * 1000; } static void opt_video_rc_eq(char *arg) { video_rc_eq = arg; } static void opt_video_rc_override_string(char *arg) { video_rc_override_string = arg; } static void opt_workaround_bugs(const char *arg) { workaround_bugs = atoi(arg); } static void opt_dct_algo(const char *arg) { dct_algo = atoi(arg); } static void opt_idct_algo(const char *arg) { idct_algo = atoi(arg); } static void opt_error_resilience(const char *arg) { error_resilience = atoi(arg); } static void opt_error_concealment(const char *arg) { error_concealment = atoi(arg); } static void opt_debug(const char *arg) { debug = atoi(arg); } static void opt_verbose(const char *arg) { verbose = atoi(arg); } static void opt_frame_rate(const char *arg) { if (parse_frame_rate(&frame_rate, &frame_rate_base, arg) < 0) { fprintf(stderr, "Incorrect frame rate\n"); exit(1); } } static void opt_frame_crop_top(const char *arg) { frame_topBand = atoi(arg); if (frame_topBand < 0) { fprintf(stderr, "Incorrect top crop size\n"); exit(1); } if ((frame_topBand % 2) != 0) { fprintf(stderr, "Top crop size must be a multiple of 2\n"); exit(1); } if ((frame_topBand) >= frame_height){ fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n"); exit(1); } frame_height -= frame_topBand; } static void opt_frame_crop_bottom(const char *arg) { frame_bottomBand = atoi(arg); if (frame_bottomBand < 0) { fprintf(stderr, "Incorrect bottom crop size\n"); exit(1); } if ((frame_bottomBand % 2) != 0) { fprintf(stderr, "Bottom crop size must be a multiple of 2\n"); exit(1); } if ((frame_bottomBand) >= frame_height){ fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n"); exit(1); } frame_height -= frame_bottomBand; } static void opt_frame_crop_left(const char *arg) { frame_leftBand = atoi(arg); if (frame_leftBand < 0) { fprintf(stderr, "Incorrect left crop size\n"); exit(1); } if ((frame_leftBand % 2) != 0) { fprintf(stderr, "Left crop size must be a multiple of 2\n"); exit(1); } if ((frame_leftBand) >= frame_width){ fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n"); exit(1); } frame_width -= frame_leftBand; } static void opt_frame_crop_right(const char *arg) { frame_rightBand = atoi(arg); if (frame_rightBand < 0) { fprintf(stderr, "Incorrect right crop size\n"); exit(1); } if ((frame_rightBand % 2) != 0) { fprintf(stderr, "Right crop size must be a multiple of 2\n"); exit(1); } if ((frame_rightBand) >= frame_width){ fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n"); exit(1); } frame_width -= frame_rightBand; } static void opt_frame_size(const char *arg) { if (parse_image_size(&frame_width, &frame_height, arg) < 0) { fprintf(stderr, "Incorrect frame size\n"); exit(1); } if ((frame_width % 2) != 0 || (frame_height % 2) != 0) { fprintf(stderr, "Frame size must be a multiple of 2\n"); exit(1); } } static void opt_frame_pix_fmt(const char *arg) { frame_pix_fmt = avcodec_get_pix_fmt(arg); } static void opt_frame_aspect_ratio(const char *arg) { int x = 0, y = 0; double ar = 0; const char *p; p = strchr(arg, ':'); if (p) { x = strtol(arg, (char **)&arg, 10); if (arg == p) y = strtol(arg+1, (char **)&arg, 10); if (x > 0 && y > 0) ar = (double)x / (double)y; } else ar = strtod(arg, (char **)&arg); if (!ar) { fprintf(stderr, "Incorrect aspect ratio specification.\n"); exit(1); } frame_aspect_ratio = ar; } static void opt_gop_size(const char *arg) { gop_size = atoi(arg); } static void opt_b_frames(const char *arg) { b_frames = atoi(arg); if (b_frames > FF_MAX_B_FRAMES) { fprintf(stderr, "\nCannot have more than %d B frames, increase FF_MAX_B_FRAMES.\n", FF_MAX_B_FRAMES); exit(1); } else if (b_frames < 1) { fprintf(stderr, "\nNumber of B frames must be higher than 0\n"); exit(1); } } static void opt_mb_decision(const char *arg) { mb_decision = atoi(arg); } static void opt_qscale(const char *arg) { video_qscale = atof(arg); if (video_qscale < 0.01 || video_qscale > 255) { fprintf(stderr, "qscale must be >= 0.01 and <= 255\n"); exit(1); } } static void opt_qmin(const char *arg) { video_qmin = atoi(arg); if (video_qmin < 0 || video_qmin > 31) { fprintf(stderr, "qmin must be >= 1 and <= 31\n"); exit(1); } } static void opt_qmax(const char *arg) { video_qmax = atoi(arg); if (video_qmax < 0 || video_qmax > 31) { fprintf(stderr, "qmax must be >= 1 and <= 31\n"); exit(1); } } static void opt_mb_qmin(const char *arg) { video_mb_qmin = atoi(arg); if (video_mb_qmin < 0 || video_mb_qmin > 31) { fprintf(stderr, "qmin must be >= 1 and <= 31\n"); exit(1); } } static void opt_mb_qmax(const char *arg) { video_mb_qmax = atoi(arg); if (video_mb_qmax < 0 || video_mb_qmax > 31) { fprintf(stderr, "qmax must be >= 1 and <= 31\n"); exit(1); } } static void opt_qdiff(const char *arg) { video_qdiff = atoi(arg); if (video_qdiff < 0 || video_qdiff > 31) { fprintf(stderr, "qdiff must be >= 1 and <= 31\n"); exit(1); } } static void opt_qblur(const char *arg) { video_qblur = atof(arg); } static void opt_qcomp(const char *arg) { video_qcomp = atof(arg); } static void opt_rc_initial_cplx(const char *arg) { video_rc_initial_cplx = atof(arg); } static void opt_b_qfactor(const char *arg) { video_b_qfactor = atof(arg); } static void opt_i_qfactor(const char *arg) { video_i_qfactor = atof(arg); } static void opt_b_qoffset(const char *arg) { video_b_qoffset = atof(arg); } static void opt_i_qoffset(const char *arg) { video_i_qoffset = atof(arg); } static void opt_packet_size(const char *arg) { packet_size= atoi(arg); } static void opt_strict(const char *arg) { strict= atoi(arg); } static void opt_audio_bitrate(const char *arg) { audio_bit_rate = atoi(arg) * 1000; } static void opt_audio_rate(const char *arg) { audio_sample_rate = atoi(arg); } static void opt_audio_channels(const char *arg) { audio_channels = atoi(arg); } static void opt_video_device(const char *arg) { video_device = av_strdup(arg); } static void opt_video_channel(const char *arg) { video_channel = strtol(arg, NULL, 0); } static void opt_video_standard(const char *arg) { video_standard = av_strdup(arg); } static void opt_audio_device(const char *arg) { audio_device = av_strdup(arg); } static void opt_dv1394(const char *arg) { video_grab_format = "dv1394"; audio_grab_format = NULL; } static void opt_audio_codec(const char *arg) { AVCodec *p; if (!strcmp(arg, "copy")) { audio_stream_copy = 1; } else { p = first_avcodec; while (p) { if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_AUDIO) break; p = p->next; } if (p == NULL) { fprintf(stderr, "Unknown audio codec '%s'\n", arg); exit(1); } else { audio_codec_id = p->id; } } } static void add_frame_hooker(const char *arg) { int argc = 0; char *argv[64]; int i; char *args = av_strdup(arg); using_vhook = 1; argv[0] = strtok(args, " "); while (argc < 62 && (argv[++argc] = strtok(NULL, " "))) { } i = frame_hook_add(argc, argv); if (i != 0) { fprintf(stderr, "Failed to add video hook function: %s\n", arg); exit(1); } } const char *motion_str[] = { "zero", "full", "log", "phods", "epzs", "x1", NULL, }; static void opt_motion_estimation(const char *arg) { const char **p; p = motion_str; for(;;) { if (!*p) { fprintf(stderr, "Unknown motion estimation method '%s'\n", arg); exit(1); } if (!strcmp(*p, arg)) break; p++; } me_method = (p - motion_str) + 1; } static void opt_video_codec(const char *arg) { AVCodec *p; if (!strcmp(arg, "copy")) { video_stream_copy = 1; } else { p = first_avcodec; while (p) { if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_VIDEO) break; p = p->next; } if (p == NULL) { fprintf(stderr, "Unknown video codec '%s'\n", arg); exit(1); } else { video_codec_id = p->id; } } } static void opt_map(const char *arg) { AVStreamMap *m; const char *p; p = arg; m = &stream_maps[nb_stream_maps++]; m->file_index = strtol(arg, (char **)&p, 0); if (*p) p++; m->stream_index = strtol(p, (char **)&p, 0); } static void opt_recording_time(const char *arg) { recording_time = parse_date(arg, 1); } static void opt_start_time(const char *arg) { start_time = parse_date(arg, 1); } static void opt_input_file(const char *filename) { AVFormatContext *ic; AVFormatParameters params, *ap = ¶ms; int err, i, ret, rfps, rfps_base; if (!strcmp(filename, "-")) filename = "pipe:"; using_stdin |= !strcmp(filename, "pipe:" ) || !strcmp( filename, "/dev/stdin" ); /* get default parameters from command line */ memset(ap, 0, sizeof(*ap)); ap->sample_rate = audio_sample_rate; ap->channels = audio_channels; ap->frame_rate = frame_rate; ap->frame_rate_base = frame_rate_base; ap->width = frame_width; ap->height = frame_height; ap->image_format = image_format; ap->pix_fmt = frame_pix_fmt; /* open the input file with generic libav function */ err = av_open_input_file(&ic, filename, file_iformat, 0, ap); if (err < 0) { print_error(filename, err); exit(1); } /* If not enough info to get the stream parameters, we decode the first frames to get it. (used in mpeg case for example) */ ret = av_find_stream_info(ic); if (ret < 0) { fprintf(stderr, "%s: could not find codec parameters\n", filename); exit(1); } /* if seeking requested, we execute it */ if (start_time != 0) { int64_t timestamp; timestamp = start_time; /* add the stream start time */ if (ic->start_time != AV_NOPTS_VALUE) timestamp += ic->start_time; ret = av_seek_frame(ic, -1, timestamp); if (ret < 0) { fprintf(stderr, "%s: could not seek to position %0.3f\n", filename, (double)timestamp / AV_TIME_BASE); } /* reset seek info */ start_time = 0; } /* update the current parameters so that they match the one of the input stream */ for(i=0;inb_streams;i++) { AVCodecContext *enc = &ic->streams[i]->codec; switch(enc->codec_type) { case CODEC_TYPE_AUDIO: //fprintf(stderr, "\nInput Audio channels: %d", enc->channels); audio_channels = enc->channels; audio_sample_rate = enc->sample_rate; break; case CODEC_TYPE_VIDEO: frame_height = enc->height; frame_width = enc->width; frame_aspect_ratio = av_q2d(enc->sample_aspect_ratio) * enc->width / enc->height; frame_pix_fmt = enc->pix_fmt; rfps = ic->streams[i]->r_frame_rate; rfps_base = ic->streams[i]->r_frame_rate_base; enc->workaround_bugs = workaround_bugs; enc->error_resilience = error_resilience; enc->error_concealment = error_concealment; enc->idct_algo= idct_algo; enc->debug= debug; if(bitexact) enc->flags|= CODEC_FLAG_BITEXACT; assert(enc->frame_rate_base == rfps_base); // should be true for now if (enc->frame_rate != rfps) { fprintf(stderr,"\nSeems that stream %d comes from film source: %2.2f->%2.2f\n", i, (float)enc->frame_rate / enc->frame_rate_base, (float)rfps / rfps_base); } /* update the current frame rate to match the stream frame rate */ frame_rate = rfps; frame_rate_base = rfps_base; enc->rate_emu = rate_emu; break; case CODEC_TYPE_DATA: break; default: av_abort(); } } input_files[nb_input_files] = ic; /* dump the file content */ dump_format(ic, nb_input_files, filename, 0); nb_input_files++; file_iformat = NULL; file_oformat = NULL; image_format = NULL; rate_emu = 0; } static void check_audio_video_inputs(int *has_video_ptr, int *has_audio_ptr) { int has_video, has_audio, i, j; AVFormatContext *ic; has_video = 0; has_audio = 0; for(j=0;jnb_streams;i++) { AVCodecContext *enc = &ic->streams[i]->codec; switch(enc->codec_type) { case CODEC_TYPE_AUDIO: has_audio = 1; break; case CODEC_TYPE_VIDEO: has_video = 1; break; default: av_abort(); } } } *has_video_ptr = has_video; *has_audio_ptr = has_audio; } static void opt_output_file(const char *filename) { AVStream *st; AVFormatContext *oc; int use_video, use_audio, nb_streams, input_has_video, input_has_audio; int codec_id; AVFormatParameters params, *ap = ¶ms; if (!strcmp(filename, "-")) filename = "pipe:"; oc = av_mallocz(sizeof(AVFormatContext)); if (!file_oformat) { file_oformat = guess_format(NULL, filename, NULL); if (!file_oformat) { fprintf(stderr, "Unable for find a suitable output format for '%s'\n", filename); exit(1); } } oc->oformat = file_oformat; if (!strcmp(file_oformat->name, "ffm") && strstart(filename, "http:", NULL)) { /* special case for files sent to ffserver: we get the stream parameters from ffserver */ if (read_ffserver_streams(oc, filename) < 0) { fprintf(stderr, "Could not read stream parameters from '%s'\n", filename); exit(1); } } else { use_video = file_oformat->video_codec != CODEC_ID_NONE; use_audio = file_oformat->audio_codec != CODEC_ID_NONE; /* disable if no corresponding type found and at least one input file */ if (nb_input_files > 0) { check_audio_video_inputs(&input_has_video, &input_has_audio); if (!input_has_video) use_video = 0; if (!input_has_audio) use_audio = 0; } /* manual disable */ if (audio_disable) { use_audio = 0; } if (video_disable) { use_video = 0; } nb_streams = 0; if (use_video) { AVCodecContext *video_enc; st = av_mallocz(sizeof(AVStream)); if (!st) { fprintf(stderr, "Could not alloc stream\n"); exit(1); } avcodec_get_context_defaults(&st->codec); video_enc = &st->codec; if(!strcmp(file_oformat->name, "mp4") || !strcmp(file_oformat->name, "mov") || !strcmp(file_oformat->name, "3gp")) video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER; if (video_stream_copy) { st->stream_copy = 1; video_enc->codec_type = CODEC_TYPE_VIDEO; } else { char *p; int i; codec_id = file_oformat->video_codec; if (video_codec_id != CODEC_ID_NONE) codec_id = video_codec_id; video_enc->codec_id = codec_id; video_enc->bit_rate = video_bit_rate; video_enc->bit_rate_tolerance = video_bit_rate_tolerance; video_enc->frame_rate = frame_rate; video_enc->frame_rate_base = frame_rate_base; video_enc->width = frame_width; video_enc->height = frame_height; video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255); video_enc->pix_fmt = frame_pix_fmt; if (!intra_only) video_enc->gop_size = gop_size; else video_enc->gop_size = 0; if (video_qscale || same_quality) { video_enc->flags |= CODEC_FLAG_QSCALE; st->quality = FF_QP2LAMBDA * video_qscale; } if(intra_matrix) video_enc->intra_matrix = intra_matrix; if(inter_matrix) video_enc->inter_matrix = inter_matrix; if(bitexact) video_enc->flags |= CODEC_FLAG_BITEXACT; video_enc->mb_decision = mb_decision; if (use_umv) { video_enc->flags |= CODEC_FLAG_H263P_UMV; } if (use_aic) { video_enc->flags |= CODEC_FLAG_H263P_AIC; } if (use_aiv) { video_enc->flags |= CODEC_FLAG_H263P_AIV; } if (use_4mv) { video_enc->flags |= CODEC_FLAG_4MV; } if(use_part) { video_enc->flags |= CODEC_FLAG_PART; } if (b_frames) { video_enc->max_b_frames = b_frames; video_enc->b_frame_strategy = 0; video_enc->b_quant_factor = 2.0; } if (do_interlace) { video_enc->flags |= CODEC_FLAG_INTERLACED_DCT; } video_enc->qmin = video_qmin; video_enc->qmax = video_qmax; video_enc->mb_qmin = video_mb_qmin; video_enc->mb_qmax = video_mb_qmax; video_enc->max_qdiff = video_qdiff; video_enc->qblur = video_qblur; video_enc->qcompress = video_qcomp; video_enc->rc_eq = video_rc_eq; video_enc->debug= debug; p= video_rc_override_string; for(i=0; p; i++){ int start, end, q; int e=sscanf(p, "%d,%d,%d", &start, &end, &q); if(e!=3){ fprintf(stderr, "error parsing rc_override\n"); exit(1); } video_enc->rc_override= av_realloc(video_enc->rc_override, sizeof(RcOverride)*(i+1)); video_enc->rc_override[i].start_frame= start; video_enc->rc_override[i].end_frame = end; if(q>0){ video_enc->rc_override[i].qscale= q; video_enc->rc_override[i].quality_factor= 1.0; } else{ video_enc->rc_override[i].qscale= 0; video_enc->rc_override[i].quality_factor= -q/100.0; } p= strchr(p, '/'); if(p) p++; } video_enc->rc_override_count=i; video_enc->rc_max_rate = video_rc_max_rate; video_enc->rc_min_rate = video_rc_min_rate; video_enc->rc_buffer_size = video_rc_buffer_size; video_enc->rc_buffer_aggressivity= video_rc_buffer_aggressivity; video_enc->rc_initial_cplx= video_rc_initial_cplx; video_enc->i_quant_factor = video_i_qfactor; video_enc->b_quant_factor = video_b_qfactor; video_enc->i_quant_offset = video_i_qoffset; video_enc->b_quant_offset = video_b_qoffset; video_enc->dct_algo = dct_algo; video_enc->idct_algo = idct_algo; video_enc->strict_std_compliance = strict; if(packet_size){ video_enc->rtp_mode= 1; video_enc->rtp_payload_size= packet_size; } if (do_psnr) video_enc->flags|= CODEC_FLAG_PSNR; video_enc->me_method = me_method; /* two pass mode */ if (do_pass) { if (do_pass == 1) { video_enc->flags |= CODEC_FLAG_PASS1; } else { video_enc->flags |= CODEC_FLAG_PASS2; } } } oc->streams[nb_streams] = st; nb_streams++; } if (use_audio) { AVCodecContext *audio_enc; st = av_mallocz(sizeof(AVStream)); if (!st) { fprintf(stderr, "Could not alloc stream\n"); exit(1); } avcodec_get_context_defaults(&st->codec); audio_enc = &st->codec; audio_enc->codec_type = CODEC_TYPE_AUDIO; if(!strcmp(file_oformat->name, "mp4") || !strcmp(file_oformat->name, "mov") || !strcmp(file_oformat->name, "3gp")) audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER; if (audio_stream_copy) { st->stream_copy = 1; } else { codec_id = file_oformat->audio_codec; if (audio_codec_id != CODEC_ID_NONE) codec_id = audio_codec_id; audio_enc->codec_id = codec_id; audio_enc->bit_rate = audio_bit_rate; audio_enc->sample_rate = audio_sample_rate; /* For audio codecs other than AC3 we limit */ /* the number of coded channels to stereo */ if (audio_channels > 2 && codec_id != CODEC_ID_AC3) { audio_enc->channels = 2; } else audio_enc->channels = audio_channels; } oc->streams[nb_streams] = st; nb_streams++; } oc->nb_streams = nb_streams; if (!nb_streams) { fprintf(stderr, "No audio or video streams available\n"); exit(1); } if (str_title) pstrcpy(oc->title, sizeof(oc->title), str_title); if (str_author) pstrcpy(oc->author, sizeof(oc->author), str_author); if (str_copyright) pstrcpy(oc->copyright, sizeof(oc->copyright), str_copyright); if (str_comment) pstrcpy(oc->comment, sizeof(oc->comment), str_comment); } output_files[nb_output_files++] = oc; strcpy(oc->filename, filename); /* check filename in case of an image number is expected */ if (oc->oformat->flags & AVFMT_NEEDNUMBER) { if (filename_number_test(oc->filename) < 0) { print_error(oc->filename, AVERROR_NUMEXPECTED); exit(1); } } if (!(oc->oformat->flags & AVFMT_NOFILE)) { /* test if it already exists to avoid loosing precious files */ if (!file_overwrite && (strchr(filename, ':') == NULL || strstart(filename, "file:", NULL))) { if (url_exist(filename)) { int c; if ( !using_stdin ) { fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename); fflush(stderr); c = getchar(); if (toupper(c) != 'Y') { fprintf(stderr, "Not overwriting - exiting\n"); exit(1); } } else { fprintf(stderr,"File '%s' already exists. Exiting.\n", filename); exit(1); } } } /* open the file */ if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0) { fprintf(stderr, "Could not open '%s'\n", filename); exit(1); } } memset(ap, 0, sizeof(*ap)); ap->image_format = image_format; if (av_set_parameters(oc, ap) < 0) { fprintf(stderr, "%s: Invalid encoding parameters\n", oc->filename); exit(1); } /* reset some options */ file_oformat = NULL; file_iformat = NULL; image_format = NULL; audio_disable = 0; video_disable = 0; audio_codec_id = CODEC_ID_NONE; video_codec_id = CODEC_ID_NONE; audio_stream_copy = 0; video_stream_copy = 0; } /* prepare dummy protocols for grab */ static void prepare_grab(void) { int has_video, has_audio, i, j; AVFormatContext *oc; AVFormatContext *ic; AVFormatParameters vp1, *vp = &vp1; AVFormatParameters ap1, *ap = &ap1; /* see if audio/video inputs are needed */ has_video = 0; has_audio = 0; memset(ap, 0, sizeof(*ap)); memset(vp, 0, sizeof(*vp)); for(j=0;jnb_streams;i++) { AVCodecContext *enc = &oc->streams[i]->codec; switch(enc->codec_type) { case CODEC_TYPE_AUDIO: if (enc->sample_rate > ap->sample_rate) ap->sample_rate = enc->sample_rate; if (enc->channels > ap->channels) ap->channels = enc->channels; has_audio = 1; break; case CODEC_TYPE_VIDEO: if (enc->width > vp->width) vp->width = enc->width; if (enc->height > vp->height) vp->height = enc->height; assert(enc->frame_rate_base == DEFAULT_FRAME_RATE_BASE); if (enc->frame_rate > vp->frame_rate){ vp->frame_rate = enc->frame_rate; vp->frame_rate_base = enc->frame_rate_base; } has_video = 1; break; default: av_abort(); } } } if (has_video == 0 && has_audio == 0) { fprintf(stderr, "Output file must have at least one audio or video stream\n"); exit(1); } if (has_video) { AVInputFormat *fmt1; fmt1 = av_find_input_format(video_grab_format); vp->device = video_device; vp->channel = video_channel; vp->standard = video_standard; if (av_open_input_file(&ic, "", fmt1, 0, vp) < 0) { fprintf(stderr, "Could not find video grab device\n"); exit(1); } /* If not enough info to get the stream parameters, we decode the first frames to get it. */ if ((ic->ctx_flags & AVFMTCTX_NOHEADER) && av_find_stream_info(ic) < 0) { fprintf(stderr, "Could not find video grab parameters\n"); exit(1); } /* by now video grab has one stream */ ic->streams[0]->r_frame_rate = vp->frame_rate; ic->streams[0]->r_frame_rate_base = vp->frame_rate_base; input_files[nb_input_files] = ic; dump_format(ic, nb_input_files, "", 0); nb_input_files++; } if (has_audio && audio_grab_format) { AVInputFormat *fmt1; fmt1 = av_find_input_format(audio_grab_format); ap->device = audio_device; if (av_open_input_file(&ic, "", fmt1, 0, ap) < 0) { fprintf(stderr, "Could not find audio grab device\n"); exit(1); } input_files[nb_input_files] = ic; dump_format(ic, nb_input_files, "", 0); nb_input_files++; } } /* same option as mencoder */ static void opt_pass(const char *pass_str) { int pass; pass = atoi(pass_str); if (pass != 1 && pass != 2) { fprintf(stderr, "pass number can be only 1 or 2\n"); exit(1); } do_pass = pass; } #if defined(CONFIG_WIN32) || defined(CONFIG_OS2) static int64_t getutime(void) { return av_gettime(); } #else static int64_t getutime(void) { struct rusage rusage; getrusage(RUSAGE_SELF, &rusage); return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec; } #endif extern int ffm_nopts; static void opt_bitexact(void) { bitexact=1; /* disable generate of real time pts in ffm (need to be supressed anyway) */ ffm_nopts = 1; } static void show_formats(void) { AVInputFormat *ifmt; AVOutputFormat *ofmt; AVImageFormat *image_fmt; URLProtocol *up; AVCodec *p; const char **pp; printf("Output audio/video file formats:"); for(ofmt = first_oformat; ofmt != NULL; ofmt = ofmt->next) { printf(" %s", ofmt->name); } printf("\n"); printf("Input audio/video file formats:"); for(ifmt = first_iformat; ifmt != NULL; ifmt = ifmt->next) { printf(" %s", ifmt->name); } printf("\n"); printf("Output image formats:"); for(image_fmt = first_image_format; image_fmt != NULL; image_fmt = image_fmt->next) { if (image_fmt->img_write) printf(" %s", image_fmt->name); } printf("\n"); printf("Input image formats:"); for(image_fmt = first_image_format; image_fmt != NULL; image_fmt = image_fmt->next) { if (image_fmt->img_read) printf(" %s", image_fmt->name); } printf("\n"); printf("Codecs:\n"); printf(" Encoders:"); for(p = first_avcodec; p != NULL; p = p->next) { if (p->encode) printf(" %s", p->name); } printf("\n"); printf(" Decoders:"); for(p = first_avcodec; p != NULL; p = p->next) { if (p->decode) printf(" %s", p->name); } printf("\n"); printf("Supported file protocols:"); for(up = first_protocol; up != NULL; up = up->next) printf(" %s:", up->name); printf("\n"); printf("Frame size, frame rate abbreviations: ntsc pal qntsc qpal sntsc spal film ntsc-film sqcif qcif cif 4cif\n"); printf("Motion estimation methods:"); pp = motion_str; while (*pp) { printf(" %s", *pp); if ((pp - motion_str + 1) == ME_ZERO) printf("(fastest)"); else if ((pp - motion_str + 1) == ME_FULL) printf("(slowest)"); else if ((pp - motion_str + 1) == ME_EPZS) printf("(default)"); pp++; } printf("\n"); exit(1); } void parse_matrix_coeffs(uint16_t *dest, const char *str) { int i; const char *p = str; for(i = 0;; i++) { dest[i] = atoi(p); if(i == 63) break; p = strchr(p, ','); if(!p) { fprintf(stderr, "Syntax error in matrix \"%s\" at coeff %d\n", str, i); exit(1); } p++; } } void opt_inter_matrix(const char *arg) { inter_matrix = av_mallocz(sizeof(uint16_t) * 64); parse_matrix_coeffs(inter_matrix, arg); } void opt_intra_matrix(const char *arg) { intra_matrix = av_mallocz(sizeof(uint16_t) * 64); parse_matrix_coeffs(intra_matrix, arg); } static void opt_target(const char *arg) { int norm = -1; if(!strncmp(arg, "pal-", 4)) { norm = 0; arg += 4; } else if(!strncmp(arg, "ntsc-", 5)) { norm = 1; arg += 5; } else { int fr; /* Calculate FR via float to avoid int overflow */ fr = (int)(frame_rate * 1000.0 / frame_rate_base); if(fr == 25000) { norm = 0; } else if((fr == 29970) || (fr == 23976)) { norm = 1; } else { /* Try to determine PAL/NTSC by peeking in the input files */ if(nb_input_files) { int i, j; for(j = 0; j < nb_input_files; j++) { for(i = 0; i < input_files[j]->nb_streams; i++) { AVCodecContext *c = &input_files[j]->streams[i]->codec; if(c->codec_type != CODEC_TYPE_VIDEO) continue; fr = c->frame_rate * 1000 / c->frame_rate_base; if(fr == 25000) { norm = 0; break; } else if((fr == 29970) || (fr == 23976)) { norm = 1; break; } } if(norm >= 0) break; } } } if(verbose && norm >= 0) printf("Assuming %s for target.\n", norm ? "NTSC" : "PAL"); } if(norm < 0) { fprintf(stderr, "Could not determine norm (PAL/NTSC) for target.\n"); fprintf(stderr, "Please prefix target with \"pal-\" or \"ntsc-\",\n"); fprintf(stderr, "or set a framerate with \"-r xxx\".\n"); exit(1); } if(!strcmp(arg, "vcd")) { opt_video_codec("mpeg1video"); opt_audio_codec("mp2"); opt_format("vcd"); opt_frame_size(norm ? "352x240" : "352x288"); video_bit_rate = 1150000; video_rc_max_rate = 1150000; video_rc_min_rate = 1150000; audio_bit_rate = 224000; audio_sample_rate = 44100; } else if(!strcmp(arg, "svcd")) { opt_video_codec("mpeg2video"); opt_audio_codec("mp2"); opt_format("vcd"); opt_frame_size(norm ? "480x480" : "480x576"); opt_gop_size(norm ? "18" : "15"); video_bit_rate = 2040000; video_rc_max_rate = 2516000; video_rc_min_rate = 1145000; audio_bit_rate = 224000; audio_sample_rate = 44100; } else if(!strcmp(arg, "dvd")) { opt_video_codec("mpeg2video"); opt_audio_codec("ac3"); opt_format("vob"); opt_frame_size(norm ? "720x480" : "720x576"); opt_gop_size(norm ? "18" : "15"); video_bit_rate = 6000000; video_rc_max_rate = 9000000; video_rc_min_rate = 1500000; audio_bit_rate = 448000; audio_sample_rate = 48000; } else { fprintf(stderr, "Unknown target: %s\n", arg); exit(1); } } const OptionDef options[] = { /* main options */ { "L", 0, {(void*)show_license}, "show license" }, { "h", 0, {(void*)show_help}, "show help" }, { "formats", 0, {(void*)show_formats}, "show available formats, codecs, protocols, ..." }, { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" }, { "img", HAS_ARG, {(void*)opt_image_format}, "force image format", "img_fmt" }, { "i", HAS_ARG, {(void*)opt_input_file}, "input file name", "filename" }, { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" }, { "map", HAS_ARG | OPT_EXPERT, {(void*)opt_map}, "set input stream mapping", "file:stream" }, { "t", HAS_ARG, {(void*)opt_recording_time}, "set the recording time", "duration" }, { "ss", HAS_ARG, {(void*)opt_start_time}, "set the start time offset", "time_off" }, { "title", HAS_ARG | OPT_STRING, {(void*)&str_title}, "set the title", "string" }, { "author", HAS_ARG | OPT_STRING, {(void*)&str_author}, "set the author", "string" }, { "copyright", HAS_ARG | OPT_STRING, {(void*)&str_copyright}, "set the copyright", "string" }, { "comment", HAS_ARG | OPT_STRING, {(void*)&str_comment}, "set the comment", "string" }, { "debug", HAS_ARG | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" }, { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark}, "add timings for benchmarking" }, { "dump", OPT_BOOL | OPT_EXPERT, {(void*)&do_pkt_dump}, "dump each input packet" }, { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump}, "when dumping packets, also dump the payload" }, { "bitexact", OPT_EXPERT, {(void*)opt_bitexact}, "only use bit exact algorithms (for codec testing)" }, { "re", OPT_BOOL | OPT_EXPERT, {(void*)&rate_emu}, "read input at native frame rate", "" }, { "loop", OPT_BOOL | OPT_EXPERT, {(void*)&loop_input}, "loop (current only works with images)" }, { "v", HAS_ARG, {(void*)opt_verbose}, "control amount of logging", "verbose" }, { "target", HAS_ARG, {(void*)opt_target}, "specify target file type (\"vcd\", \"svcd\" or \"dvd\")", "type" }, /* video options */ { "b", HAS_ARG | OPT_VIDEO, {(void*)opt_video_bitrate}, "set video bitrate (in kbit/s)", "bitrate" }, { "r", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_rate}, "set frame rate (Hz value, fraction or abbreviation)", "rate" }, { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" }, { "aspect", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_aspect_ratio}, "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" }, { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" }, { "croptop", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop_top}, "set top crop band size (in pixels)", "size" }, { "cropbottom", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop_bottom}, "set bottom crop band size (in pixels)", "size" }, { "cropleft", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop_left}, "set left crop band size (in pixels)", "size" }, { "cropright", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop_right}, "set right crop band size (in pixels)", "size" }, { "g", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_gop_size}, "set the group of picture size", "gop_size" }, { "intra", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_only}, "use only intra frames"}, { "vn", OPT_BOOL | OPT_VIDEO, {(void*)&video_disable}, "disable video" }, { "qscale", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qscale}, "use fixed video quantiser scale (VBR)", "q" }, { "qmin", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qmin}, "min video quantiser scale (VBR)", "q" }, { "qmax", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qmax}, "max video quantiser scale (VBR)", "q" }, { "mbqmin", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_mb_qmin}, "min macroblock quantiser scale (VBR)", "q" }, { "mbqmax", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_mb_qmax}, "max macroblock quantiser scale (VBR)", "q" }, { "qdiff", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qdiff}, "max difference between the quantiser scale (VBR)", "q" }, { "qblur", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qblur}, "video quantiser scale blur (VBR)", "blur" }, { "qcomp", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qcomp}, "video quantiser scale compression (VBR)", "compression" }, { "rc_init_cplx", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_rc_initial_cplx}, "initial complexity for 1-pass encoding", "complexity" }, { "b_qfactor", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_b_qfactor}, "qp factor between p and b frames", "factor" }, { "i_qfactor", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_i_qfactor}, "qp factor between p and i frames", "factor" }, { "b_qoffset", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_b_qoffset}, "qp offset between p and b frames", "offset" }, { "i_qoffset", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_i_qoffset}, "qp offset between p and i frames", "offset" }, // { "b_strategy", HAS_ARG | OPT_EXPERT, {(void*)opt_b_strategy}, "dynamic b frame selection strategy", "strategy" }, { "rc_eq", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_video_rc_eq}, "set rate control equation", "equation" }, { "rc_override", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_video_rc_override_string}, "rate control override for specific intervals", "override" }, { "bt", HAS_ARG | OPT_VIDEO, {(void*)opt_video_bitrate_tolerance}, "set video bitrate tolerance (in kbit/s)", "tolerance" }, { "maxrate", HAS_ARG | OPT_VIDEO, {(void*)opt_video_bitrate_max}, "set max video bitrate tolerance (in kbit/s)", "bitrate" }, { "minrate", HAS_ARG | OPT_VIDEO, {(void*)opt_video_bitrate_min}, "set min video bitrate tolerance (in kbit/s)", "bitrate" }, { "bufsize", HAS_ARG | OPT_VIDEO, {(void*)opt_video_buffer_size}, "set ratecontrol buffere size (in kbit)", "size" }, { "vcodec", HAS_ARG | OPT_VIDEO, {(void*)opt_video_codec}, "force video codec ('copy' to copy stream)", "codec" }, { "me", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_motion_estimation}, "set motion estimation method", "method" }, { "dct_algo", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_dct_algo}, "set dct algo", "algo" }, { "idct_algo", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_idct_algo}, "set idct algo", "algo" }, { "er", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_error_resilience}, "set error resilience", "n" }, { "ec", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_error_concealment}, "set error concealment", "bit_mask" }, { "bf", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_b_frames}, "use 'frames' B frames", "frames" }, { "hq", OPT_BOOL, {(void*)&mb_decision}, "activate high quality settings" }, { "mbd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_mb_decision}, "macroblock decision", "mode" }, { "4mv", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_4mv}, "use four motion vector by macroblock (MPEG4)" }, { "part", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_part}, "use data partitioning (MPEG4)" }, { "bug", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_workaround_bugs}, "workaround not auto detected encoder bugs", "param" }, { "ps", HAS_ARG | OPT_EXPERT, {(void*)opt_packet_size}, "set packet size in bits", "size" }, { "strict", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_strict}, "how strictly to follow the standarts", "strictness" }, { "sameq", OPT_BOOL | OPT_VIDEO, {(void*)&same_quality}, "use same video quality as source (implies VBR)" }, { "pass", HAS_ARG | OPT_VIDEO, {(void*)&opt_pass}, "select the pass number (1 or 2)", "n" }, { "passlogfile", HAS_ARG | OPT_STRING | OPT_VIDEO, {(void*)&pass_logfilename}, "select two pass log file name", "file" }, { "deinterlace", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_deinterlace}, "deinterlace pictures" }, { "interlace", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_interlace}, "force interlacing support in encoder (MPEG4)" }, { "psnr", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_psnr}, "calculate PSNR of compressed frames" }, { "vstats", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_vstats}, "dump video coding statistics to file" }, { "vhook", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)add_frame_hooker}, "insert video processing module", "module" }, { "aic", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_aic}, "enable Advanced intra coding (h263+)" }, { "aiv", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_aiv}, "enable Alternative inter vlc (h263+)" }, { "umv", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_umv}, "enable Unlimited Motion Vector (h263+)" }, { "intra_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_intra_matrix}, "specify intra matrix coeffs", "matrix" }, { "inter_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_inter_matrix}, "specify inter matrix coeffs", "matrix" }, /* audio options */ { "ab", HAS_ARG | OPT_AUDIO, {(void*)opt_audio_bitrate}, "set audio bitrate (in kbit/s)", "bitrate", }, { "ar", HAS_ARG | OPT_AUDIO, {(void*)opt_audio_rate}, "set audio sampling rate (in Hz)", "rate" }, { "ac", HAS_ARG | OPT_AUDIO, {(void*)opt_audio_channels}, "set number of audio channels", "channels" }, { "an", OPT_BOOL | OPT_AUDIO, {(void*)&audio_disable}, "disable audio" }, { "acodec", HAS_ARG | OPT_AUDIO, {(void*)opt_audio_codec}, "force audio codec ('copy' to copy stream)", "codec" }, /* grab options */ { "vd", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_device}, "set video grab device", "device" }, { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_channel}, "set video grab channel (DV1394 only)", "channel" }, { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_standard}, "set television standard (NTSC, PAL (SECAM))", "standard" }, { "dv1394", OPT_EXPERT | OPT_GRAB, {(void*)opt_dv1394}, "set DV1394 grab", "" }, { "ad", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_GRAB, {(void*)opt_audio_device}, "set audio device", "device" }, { NULL, }, }; static void show_banner(void) { printf("ffmpeg version " FFMPEG_VERSION ", Copyright (c) 2000-2003 Fabrice Bellard\n"); } static void show_license(void) { show_banner(); printf( "This library is free software; you can redistribute it and/or\n" "modify it under the terms of the GNU Lesser General Public\n" "License as published by the Free Software Foundation; either\n" "version 2 of the License, or (at your option) any later version.\n" "\n" "This library is distributed in the hope that it will be useful,\n" "but WITHOUT ANY WARRANTY; without even the implied warranty of\n" "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n" "Lesser General Public License for more details.\n" "\n" "You should have received a copy of the GNU Lesser General Public\n" "License along with this library; if not, write to the Free Software\n" "Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\n" ); exit(1); } static void show_help(void) { show_banner(); printf("usage: ffmpeg [[options] -i input_file]... {[options] outfile}...\n" "Hyper fast Audio and Video encoder\n"); printf("\n"); show_help_options(options, "Main options:\n", OPT_EXPERT | OPT_AUDIO | OPT_VIDEO, 0); show_help_options(options, "\nVideo options:\n", OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB, OPT_VIDEO); show_help_options(options, "\nAdvanced Video options:\n", OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB, OPT_VIDEO | OPT_EXPERT); show_help_options(options, "\nAudio options:\n", OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB, OPT_AUDIO); show_help_options(options, "\nAdvanced Audio options:\n", OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB, OPT_AUDIO | OPT_EXPERT); show_help_options(options, "\nAudio/Video grab options:\n", OPT_GRAB, OPT_GRAB); show_help_options(options, "\nAdvanced options:\n", OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB, OPT_EXPERT); exit(1); } void parse_arg_file(const char *filename) { opt_output_file(filename); } int main(int argc, char **argv) { int i; int64_t ti; av_register_all(); if (argc <= 1) show_help(); /* parse options */ parse_options(argc, argv, options); /* file converter / grab */ if (nb_output_files <= 0) { fprintf(stderr, "Must supply at least one output file\n"); exit(1); } if (nb_input_files == 0) { prepare_grab(); } ti = getutime(); av_encode(output_files, nb_output_files, input_files, nb_input_files, stream_maps, nb_stream_maps); ti = getutime() - ti; if (do_benchmark) { printf("bench: utime=%0.3fs\n", ti / 1000000.0); } /* close files */ for(i=0;ioformat->flags & AVFMT_NOFILE)) url_fclose(&s->pb); for(j=0;jnb_streams;j++) av_free(s->streams[j]); av_free(s); } for(i=0;i