]> git.sesse.net Git - ffmpeg/blobdiff - ffmpeg.c
Set blkalign to maximum framesize to allow playback on WMP (see issue 2455 and issue...
[ffmpeg] / ffmpeg.c
index 8dd10eff6e176feaab0731bad37ec9cc8b1fe37b..94919814bc2ea7d048534658b236f7fd09e71eef 100644 (file)
--- a/ffmpeg.c
+++ b/ffmpeg.c
 #include "libswscale/swscale.h"
 #include "libavcodec/opt.h"
 #include "libavcodec/audioconvert.h"
+#include "libavcore/audioconvert.h"
 #include "libavcore/parseutils.h"
+#include "libavcore/samplefmt.h"
 #include "libavutil/colorspace.h"
 #include "libavutil/fifo.h"
+#include "libavutil/intreadwrite.h"
 #include "libavutil/pixdesc.h"
 #include "libavutil/avstring.h"
 #include "libavutil/libm.h"
@@ -47,7 +50,6 @@
 #if CONFIG_AVFILTER
 # include "libavfilter/avfilter.h"
 # include "libavfilter/avfiltergraph.h"
-# include "libavfilter/graphparser.h"
 # include "libavfilter/vsrc_buffer.h"
 #endif
 
@@ -96,10 +98,16 @@ typedef struct AVStreamMap {
  * select an input file for an output file
  */
 typedef struct AVMetaDataMap {
-    int out_file;
-    int in_file;
+    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
 } AVMetaDataMap;
 
+typedef struct AVChapterMap {
+    int in_file;
+    int out_file;
+} AVChapterMap;
+
 static const OptionDef options[];
 
 #define MAX_FILES 100
@@ -124,8 +132,15 @@ static int nb_output_codecs = 0;
 static AVStreamMap *stream_maps = NULL;
 static int nb_stream_maps;
 
-static AVMetaDataMap meta_data_maps[MAX_FILES];
+/* first item specifies output metadata, second is input */
+static AVMetaDataMap (*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 AVChapterMap *chapter_maps = NULL;
+static int nb_chapter_maps;
 
 /* indexed by output file stream index */
 static int *streamid_map = NULL;
@@ -135,7 +150,7 @@ 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 enum SampleFormat audio_sample_fmt = SAMPLE_FMT_NONE;
+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;
@@ -225,8 +240,8 @@ static int nb_frames_drop = 0;
 static int input_sync;
 static uint64_t limit_filesize = 0;
 static int force_fps = 0;
+static char *forced_key_frames = NULL;
 
-static int pgmyuv_compatibility_hack=0;
 static float dts_delta_threshold = 10;
 
 static unsigned int sws_flags = SWS_BICUBIC;
@@ -272,9 +287,17 @@ typedef struct AVOutputStream {
     int original_height;
     int original_width;
 
+    /* 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 */
@@ -324,29 +347,6 @@ static struct termios oldtty;
 
 #if CONFIG_AVFILTER
 
-static int get_filtered_video_pic(AVFilterContext *ctx,
-                                  AVFilterBufferRef **picref, AVFrame *pic2,
-                                  uint64_t *pts)
-{
-    AVFilterBufferRef *pic;
-
-    if(avfilter_request_frame(ctx->inputs[0]))
-        return -1;
-    if(!(pic = ctx->inputs[0]->cur_buf))
-        return -1;
-    *picref = pic;
-    ctx->inputs[0]->cur_buf = NULL;
-
-    *pts          = pic->pts;
-
-    memcpy(pic2->data,     pic->data,     sizeof(pic->data));
-    memcpy(pic2->linesize, pic->linesize, sizeof(pic->linesize));
-    pic2->interlaced_frame = pic->video->interlaced;
-    pic2->top_field_first  = pic->video->top_field_first;
-
-    return 1;
-}
-
 static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
 {
     AVFilterContext *last_filter, *filter;
@@ -357,25 +357,18 @@ static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
     char args[255];
     int ret;
 
-    graph = av_mallocz(sizeof(AVFilterGraph));
-
-    if ((ret = avfilter_open(&ist->input_video_filter, avfilter_get_by_name("buffer"), "src")) < 0)
-        return ret;
-    if ((ret = avfilter_open(&ist->output_video_filter, &ffsink, "out")) < 0)
-        return ret;
+    graph = avfilter_graph_alloc();
 
     snprintf(args, 255, "%d:%d:%d:%d:%d", ist->st->codec->width,
-             ist->st->codec->height, ist->st->codec->pix_fmt,
-             ist->st->time_base.num, ist->st->time_base.den);
-    if ((ret = avfilter_init_filter(ist->input_video_filter, args, NULL)) < 0)
+             ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE);
+    ret = avfilter_graph_create_filter(&ist->input_video_filter, avfilter_get_by_name("buffer"),
+                                       "src", args, NULL, graph);
+    if (ret < 0)
         return ret;
-    if ((ret = avfilter_init_filter(ist->output_video_filter, NULL, &ffsink_ctx)) < 0)
+    ret = avfilter_graph_create_filter(&ist->output_video_filter, &ffsink,
+                                       "out", NULL, &ffsink_ctx, graph);
+    if (ret < 0)
         return ret;
-
-    /* add input and output filters to the overall graph */
-    avfilter_graph_add_filter(graph, ist->input_video_filter);
-    avfilter_graph_add_filter(graph, ist->output_video_filter);
-
     last_filter = ist->input_video_filter;
 
     if (codec->width  != icodec->width || codec->height != icodec->height) {
@@ -383,14 +376,12 @@ static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
                  codec->width,
                  codec->height,
                  (int)av_get_int(sws_opts, "sws_flags", NULL));
-        if ((ret = avfilter_open(&filter, avfilter_get_by_name("scale"), NULL)) < 0)
-            return ret;
-        if ((ret = avfilter_init_filter(filter, args, NULL)) < 0)
+        if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
+                                                NULL, args, NULL, graph)) < 0)
             return ret;
         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
             return ret;
         last_filter = filter;
-        avfilter_graph_add_filter(graph, last_filter);
     }
 
     snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
@@ -401,12 +392,12 @@ static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
 
         outputs->name    = av_strdup("in");
-        outputs->filter  = last_filter;
+        outputs->filter_ctx = last_filter;
         outputs->pad_idx = 0;
         outputs->next    = NULL;
 
         inputs->name    = av_strdup("out");
-        inputs->filter  = ist->output_video_filter;
+        inputs->filter_ctx = ist->output_video_filter;
         inputs->pad_idx = 0;
         inputs->next    = NULL;
 
@@ -551,6 +542,7 @@ static int ffmpeg_exit(int ret)
     av_free(input_codecs);
     av_free(output_codecs);
     av_free(stream_maps);
+    av_free(meta_data_maps);
 
     av_free(video_codec_name);
     av_free(audio_codec_name);
@@ -602,7 +594,7 @@ static void *grow_array(void *array, int elem_size, int *size, int new_size)
 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
 {
     if(codec && codec->sample_fmts){
-        const enum SampleFormat *p= codec->sample_fmts;
+        const enum AVSampleFormat *p= codec->sample_fmts;
         for(; *p!=-1; p++){
             if(*p == st->codec->sample_fmt)
                 break;
@@ -649,6 +641,27 @@ static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
     }
 }
 
+static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
+{
+    int idx = oc->nb_streams - 1;
+    AVOutputStream *ost;
+
+    output_streams_for_file[file_idx] =
+        grow_array(output_streams_for_file[file_idx],
+                   sizeof(*output_streams_for_file[file_idx]),
+                   &nb_output_streams_for_file[file_idx],
+                   oc->nb_streams);
+    ost = output_streams_for_file[file_idx][idx] =
+        av_mallocz(sizeof(AVOutputStream));
+    if (!ost) {
+        fprintf(stderr, "Could not alloc output stream\n");
+        ffmpeg_exit(1);
+    }
+    ost->file_index = file_idx;
+    ost->index = idx;
+    return ost;
+}
+
 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
 {
     int i, err;
@@ -659,11 +672,13 @@ static int read_ffserver_streams(AVFormatContext *s, const char *filename)
     if (err < 0)
         return err;
     /* copy stream format */
-    s->nb_streams = ic->nb_streams;
+    s->nb_streams = 0;
     for(i=0;i<ic->nb_streams;i++) {
         AVStream *st;
         AVCodec *codec;
 
+        s->nb_streams++;
+
         // FIXME: a more elegant solution is needed
         st = av_mallocz(sizeof(AVStream));
         memcpy(st, ic->streams[i], sizeof(AVStream));
@@ -695,6 +710,8 @@ static int read_ffserver_streams(AVFormatContext *s, const char *filename)
 
         if(st->codec->flags & CODEC_FLAG_BITEXACT)
             nopts = 1;
+
+        new_output_stream(s, nb_output_files);
     }
 
     if (!nopts)
@@ -754,11 +771,11 @@ static void do_audio_out(AVFormatContext *s,
     int64_t audio_out_size, audio_buf_size;
     int64_t allocated_for_size= size;
 
-    int size_out, frame_bytes, ret;
+    int size_out, frame_bytes, ret, resample_changed;
     AVCodecContext *enc= ost->st->codec;
     AVCodecContext *dec= ist->st->codec;
-    int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
-    int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
+    int osize= av_get_bits_per_sample_fmt(enc->sample_fmt)/8;
+    int isize= av_get_bits_per_sample_fmt(dec->sample_fmt)/8;
     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
 
 need_realloc:
@@ -788,22 +805,44 @@ need_realloc:
     if (enc->channels != dec->channels)
         ost->audio_resample = 1;
 
-    if (ost->audio_resample && !ost->resample) {
-        if (dec->sample_fmt != 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);
-            ffmpeg_exit(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->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 (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);
+                ffmpeg_exit(1);
+            }
         }
     }
 
-#define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
+#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)
@@ -812,8 +851,8 @@ need_realloc:
                                                    dec->sample_fmt, 1, NULL, 0);
         if (!ost->reformat_ctx) {
             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
-                avcodec_get_sample_fmt_name(dec->sample_fmt),
-                avcodec_get_sample_fmt_name(enc->sample_fmt));
+                av_get_sample_fmt_name(dec->sample_fmt),
+                av_get_sample_fmt_name(enc->sample_fmt));
             ffmpeg_exit(1);
         }
         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
@@ -1081,13 +1120,9 @@ static void do_video_out(AVFormatContext *s,
 {
     int nb_frames, i, ret;
     AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
-    AVFrame picture_crop_temp, picture_pad_temp;
     AVCodecContext *enc, *dec;
     double sync_ipts;
 
-    avcodec_get_frame_defaults(&picture_crop_temp);
-    avcodec_get_frame_defaults(&picture_pad_temp);
-
     enc = ost->st->codec;
     dec = ist->st->codec;
 
@@ -1107,7 +1142,7 @@ static void do_video_out(AVFormatContext *s,
             if(vdelta<=-0.6){
                 nb_frames=0;
             }else if(vdelta>0.6)
-            ost->sync_opts= lrintf(sync_ipts);
+                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);
@@ -1212,6 +1247,11 @@ static void do_video_out(AVFormatContext *s,
             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 = FF_I_TYPE;
+                ost->forced_kf_index++;
+            }
             ret = avcodec_encode_video(enc,
                                        bit_buffer, bit_buffer_size,
                                        &big_picture);
@@ -1430,7 +1470,7 @@ static int output_packet(AVInputStream *ist, int ist_index,
 #endif
 
     AVPacket avpkt;
-    int bps = av_get_bits_per_sample_format(ist->st->codec->sample_fmt)>>3;
+    int bps = av_get_bits_per_sample_fmt(ist->st->codec->sample_fmt)>>3;
 
     if(ist->next_pts == AV_NOPTS_VALUE)
         ist->next_pts= ist->pts;
@@ -1600,8 +1640,11 @@ static int output_packet(AVInputStream *ist, int ist_index,
         if (start_time == 0 || ist->pts >= start_time)
 #if CONFIG_AVFILTER
         while (frame_available) {
+            AVRational ist_pts_tb;
             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->output_video_filter)
-                get_filtered_video_pic(ist->output_video_filter, &ist->picref, &picture, &ist->pts);
+                get_filtered_video_frame(ist->output_video_filter, &picture, &ist->picref, &ist_pts_tb);
+            if (ist->picref)
+                ist->pts = av_rescale_q(ist->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
 #endif
             for(i=0;i<nb_ostreams;i++) {
                 int frame_size;
@@ -1744,7 +1787,7 @@ static int output_packet(AVInputStream *ist, int ist_index,
                             ret = 0;
                             /* encode any samples remaining in fifo */
                             if (fifo_bytes > 0) {
-                                int osize = av_get_bits_per_sample_format(enc->sample_fmt) >> 3;
+                                int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
                                 int fs_tmp = enc->frame_size;
 
                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
@@ -1845,8 +1888,9 @@ static int copy_chapters(int infile, int outfile)
         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
 
-        while ((t = av_metadata_get(in_ch->metadata, "", t, AV_METADATA_IGNORE_SUFFIX)))
-            av_metadata_set2(&out_ch->metadata, t->key, t->value, 0);
+        if (metadata_chapters_autocopy)
+            while ((t = av_metadata_get(in_ch->metadata, "", t, AV_METADATA_IGNORE_SUFFIX)))
+                av_metadata_set2(&out_ch->metadata, t->key, t->value, 0);
 
         os->nb_chapters++;
         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
@@ -1857,6 +1901,29 @@ static int copy_chapters(int infile, int outfile)
     return 0;
 }
 
+static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
+                                    AVCodecContext *avctx)
+{
+    char *p;
+    int n = 1, i;
+    int64_t t;
+
+    for (p = kf; *p; p++)
+        if (*p == ',')
+            n++;
+    ost->forced_kf_count = n;
+    ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
+    if (!ost->forced_kf_pts) {
+        av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
+        ffmpeg_exit(1);
+    }
+    for (i = 0; i < n; i++) {
+        p = i ? strchr(p, ',') + 1 : kf;
+        t = parse_time_or_die("force_key_frames", p, 1);
+        ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
+    }
+}
+
 /*
  * The following code is the main loop of the file converter
  */
@@ -1923,7 +1990,7 @@ static int transcode(AVFormatContext **output_files,
     nb_ostreams = 0;
     for(i=0;i<nb_output_files;i++) {
         os = output_files[i];
-        if (!os->nb_streams) {
+        if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
             dump_format(output_files[i], i, output_files[i]->filename, 1);
             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
             ret = AVERROR(EINVAL);
@@ -2051,9 +2118,10 @@ static int transcode(AVFormatContext **output_files,
         codec = ost->st->codec;
         icodec = ist->st->codec;
 
-        while ((t = av_metadata_get(ist->st->metadata, "", t, AV_METADATA_IGNORE_SUFFIX))) {
-            av_metadata_set2(&ost->st->metadata, t->key, t->value, AV_METADATA_DONT_OVERWRITE);
-        }
+        if (metadata_streams_autocopy)
+            while ((t = av_metadata_get(ist->st->metadata, "", t, AV_METADATA_IGNORE_SUFFIX))) {
+                av_metadata_set2(&ost->st->metadata, t->key, t->value, AV_METADATA_DONT_OVERWRITE);
+            }
 
         ost->st->disposition = ist->st->disposition;
         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
@@ -2126,11 +2194,14 @@ static int transcode(AVFormatContext **output_files,
                 ost->fifo= av_fifo_alloc(1024);
                 if(!ost->fifo)
                     goto fail;
-                ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
+                ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
                 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 (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
@@ -2235,6 +2306,7 @@ static int transcode(AVFormatContext **output_files,
         ost = ost_table[i];
         if (ost->encoding_needed) {
             AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
+            AVCodecContext *dec = ist_table[ost->source_index]->st->codec;
             if (!codec)
                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
             if (!codec) {
@@ -2243,6 +2315,15 @@ static int transcode(AVFormatContext **output_files,
                 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_open(ost->st->codec, codec) < 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);
@@ -2290,43 +2371,96 @@ static int transcode(AVFormatContext **output_files,
 
     /* set meta data information from input file if required */
     for (i=0;i<nb_meta_data_maps;i++) {
-        AVFormatContext *out_file;
-        AVFormatContext *in_file;
+        AVFormatContext *files[2];
+        AVMetadata      **meta[2];
         AVMetadataTag *mtag;
+        int j;
+
+#define METADATA_CHECK_INDEX(index, nb_elems, desc)\
+        if ((index) < 0 || (index) >= (nb_elems)) {\
+            snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
+                     (desc), (index));\
+            ret = AVERROR(EINVAL);\
+            goto dump_format;\
+        }
+
+        int out_file_index = meta_data_maps[i][0].file;
+        int in_file_index = meta_data_maps[i][1].file;
+        if (in_file_index < 0 || out_file_index < 0)
+            continue;
+        METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
+        METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
+
+        files[0] = output_files[out_file_index];
+        files[1] = input_files[in_file_index];
+
+        for (j = 0; j < 2; j++) {
+            AVMetaDataMap *map = &meta_data_maps[i][j];
+
+            switch (map->type) {
+            case 'g':
+                meta[j] = &files[j]->metadata;
+                break;
+            case 's':
+                METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
+                meta[j] = &files[j]->streams[map->index]->metadata;
+                break;
+            case 'c':
+                METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
+                meta[j] = &files[j]->chapters[map->index]->metadata;
+                break;
+            case 'p':
+                METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
+                meta[j] = &files[j]->programs[map->index]->metadata;
+                break;
+            }
+        }
+
+        mtag=NULL;
+        while((mtag=av_metadata_get(*meta[1], "", mtag, AV_METADATA_IGNORE_SUFFIX)))
+            av_metadata_set2(meta[0], mtag->key, mtag->value, AV_METADATA_DONT_OVERWRITE);
+    }
+
+    /* copy global metadata by default */
+    if (metadata_global_autocopy) {
+        AVMetadataTag *t = NULL;
+
+        while ((t = av_metadata_get(input_files[0]->metadata, "", t, AV_METADATA_IGNORE_SUFFIX)))
+            for (i = 0; i < nb_output_files; i++)
+                av_metadata_set2(&output_files[i]->metadata, t->key, t->value, AV_METADATA_DONT_OVERWRITE);
+    }
+
+    /* copy chapters according to chapter maps */
+    for (i = 0; i < nb_chapter_maps; i++) {
+        int infile  = chapter_maps[i].in_file;
+        int outfile = chapter_maps[i].out_file;
 
-        int out_file_index = meta_data_maps[i].out_file;
-        int in_file_index = meta_data_maps[i].in_file;
-        if (out_file_index < 0 || out_file_index >= nb_output_files) {
-            snprintf(error, sizeof(error), "Invalid output file index %d map_meta_data(%d,%d)",
-                     out_file_index, out_file_index, in_file_index);
+        if (infile < 0 || outfile < 0)
+            continue;
+        if (infile >= nb_input_files) {
+            snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
             ret = AVERROR(EINVAL);
             goto dump_format;
         }
-        if (in_file_index < 0 || in_file_index >= nb_input_files) {
-            snprintf(error, sizeof(error), "Invalid input file index %d map_meta_data(%d,%d)",
-                     in_file_index, out_file_index, in_file_index);
+        if (outfile >= nb_output_files) {
+            snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
             ret = AVERROR(EINVAL);
             goto dump_format;
         }
-
-        out_file = output_files[out_file_index];
-        in_file = input_files[in_file_index];
-
-
-        mtag=NULL;
-        while((mtag=av_metadata_get(in_file->metadata, "", mtag, AV_METADATA_IGNORE_SUFFIX)))
-            av_metadata_set2(&out_file->metadata, mtag->key, mtag->value, AV_METADATA_DONT_OVERWRITE);
+        copy_chapters(infile, outfile);
     }
 
     /* copy chapters from the first input file that has them*/
-    for (i = 0; i < nb_input_files; i++) {
-        if (!input_files[i]->nb_chapters)
-            continue;
+    if (!nb_chapter_maps)
+        for (i = 0; i < nb_input_files; i++) {
+            if (!input_files[i]->nb_chapters)
+                continue;
 
-        for (j = 0; j < nb_output_files; j++)
-            if ((ret = copy_chapters(i, j)) < 0)
-                goto dump_format;
-    }
+            for (j = 0; j < nb_output_files; j++)
+                if ((ret = copy_chapters(i, j)) < 0)
+                    goto dump_format;
+            break;
+        }
 
     /* open files and write file headers */
     for(i=0;i<nb_output_files;i++) {
@@ -2566,7 +2700,7 @@ static int transcode(AVFormatContext **output_files,
     }
 #if CONFIG_AVFILTER
     if (graph) {
-        avfilter_graph_destroy(graph);
+        avfilter_graph_free(graph);
         av_freep(&graph);
     }
 #endif
@@ -2597,7 +2731,9 @@ static int transcode(AVFormatContext **output_files,
                 }
                 av_fifo_free(ost->fifo); /* works even if fifo is not
                                              initialized but set to zero */
+                av_freep(&ost->st->codec->subtitle_header);
                 av_free(ost->pict_tmp.data[0]);
+                av_free(ost->forced_kf_pts);
                 if (ost->video_resample)
                     sws_freeContext(ost->img_resample_ctx);
                 if (ost->resample)
@@ -2614,14 +2750,6 @@ static int transcode(AVFormatContext **output_files,
 
 static void opt_format(const char *arg)
 {
-    /* compatibility stuff for pgmyuv */
-    if (!strcmp(arg, "pgmyuv")) {
-        pgmyuv_compatibility_hack=1;
-//        opt_image_format(arg);
-        arg = "image2";
-        fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
-    }
-
     last_asked_format = arg;
 }
 
@@ -2763,9 +2891,9 @@ static int opt_thread_count(const char *opt, const char *arg)
 static void opt_audio_sample_fmt(const char *arg)
 {
     if (strcmp(arg, "list"))
-        audio_sample_fmt = avcodec_get_sample_fmt(arg);
+        audio_sample_fmt = av_get_sample_fmt(arg);
     else {
-        list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
+        list_fmts(av_get_sample_fmt_string, AV_SAMPLE_FMT_NB);
         ffmpeg_exit(0);
     }
 }
@@ -2808,24 +2936,6 @@ static void opt_audio_codec(const char *arg)
     opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
 }
 
-static void opt_audio_tag(const char *arg)
-{
-    char *tail;
-    audio_codec_tag= strtol(arg, &tail, 0);
-
-    if(!tail || *tail)
-        audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
-}
-
-static void opt_video_tag(const char *arg)
-{
-    char *tail;
-    video_codec_tag= strtol(arg, &tail, 0);
-
-    if(!tail || *tail)
-        video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
-}
-
 static void opt_video_codec(const char *arg)
 {
     opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
@@ -2836,13 +2946,22 @@ static void opt_subtitle_codec(const char *arg)
     opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
 }
 
-static void opt_subtitle_tag(const char *arg)
+static int opt_codec_tag(const char *opt, const char *arg)
 {
     char *tail;
-    subtitle_codec_tag= strtol(arg, &tail, 0);
+    uint32_t *codec_tag;
+
+    codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
+                !strcmp(opt, "vtag") ? &video_codec_tag :
+                !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
+    if (!codec_tag)
+        return -1;
 
-    if(!tail || *tail)
-        subtitle_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
+    *codec_tag = strtol(arg, &tail, 0);
+    if (!tail || *tail)
+        *codec_tag = AV_RL32(arg);
+
+    return 0;
 }
 
 static void opt_map(const char *arg)
@@ -2870,18 +2989,66 @@ static void opt_map(const char *arg)
     }
 }
 
+static void parse_meta_type(const char *arg, char *type, int *index, char **endptr)
+{
+    *endptr = arg;
+    if (*arg == ',') {
+        *type = *(++arg);
+        switch (*arg) {
+        case 'g':
+            break;
+        case 's':
+        case 'c':
+        case 'p':
+            *index = strtol(++arg, endptr, 0);
+            break;
+        default:
+            fprintf(stderr, "Invalid metadata type %c.\n", *arg);
+            ffmpeg_exit(1);
+        }
+    } else
+        *type = 'g';
+}
+
 static void opt_map_meta_data(const char *arg)
 {
-    AVMetaDataMap *m;
+    AVMetaDataMap *m, *m1;
     char *p;
 
-    m = &meta_data_maps[nb_meta_data_maps++];
+    meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
+                                &nb_meta_data_maps, nb_meta_data_maps + 1);
 
-    m->out_file = strtol(arg, &p, 0);
+    m = &meta_data_maps[nb_meta_data_maps - 1][0];
+    m->file = strtol(arg, &p, 0);
+    parse_meta_type(p, &m->type, &m->index, &p);
     if (*p)
         p++;
 
-    m->in_file = strtol(p, &p, 0);
+    m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
+    m1->file = strtol(p, &p, 0);
+    parse_meta_type(p, &m1->type, &m1->index, &p);
+
+    if (m->type == 'g' || m1->type == 'g')
+        metadata_global_autocopy = 0;
+    if (m->type == 's' || m1->type == 's')
+        metadata_streams_autocopy = 0;
+    if (m->type == 'c' || m1->type == 'c')
+        metadata_chapters_autocopy = 0;
+}
+
+static void opt_map_chapters(const char *arg)
+{
+    AVChapterMap *c;
+    char *p;
+
+    chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
+                              nb_chapter_maps + 1);
+    c = &chapter_maps[nb_chapter_maps - 1];
+    c->out_file = strtol(arg, &p, 0);
+    if (*p)
+        p++;
+
+    c->in_file = strtol(p, &p, 0);
 }
 
 static void opt_input_ts_scale(const char *arg)
@@ -3015,9 +3182,6 @@ static void opt_input_file(const char *filename)
                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
     ic->flags |= AVFMT_FLAG_NONBLOCK;
 
-    if(pgmyuv_compatibility_hack)
-        ic->video_codec_id= CODEC_ID_PGMYUV;
-
     /* open the input file with generic libav function */
     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
     if (err < 0) {
@@ -3203,27 +3367,6 @@ static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
     *has_subtitle_ptr = has_subtitle;
 }
 
-static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
-{
-    int idx = oc->nb_streams - 1;
-    AVOutputStream *ost;
-
-    output_streams_for_file[file_idx] =
-        grow_array(output_streams_for_file[file_idx],
-                   sizeof(*output_streams_for_file[file_idx]),
-                   &nb_output_streams_for_file[file_idx],
-                   oc->nb_streams);
-    ost = output_streams_for_file[file_idx][idx] =
-        av_mallocz(sizeof(AVOutputStream));
-    if (!ost) {
-        fprintf(stderr, "Could not alloc output stream\n");
-        ffmpeg_exit(1);
-    }
-    ost->file_index = file_idx;
-    ost->index = idx;
-    return ost;
-}
-
 static void new_video_stream(AVFormatContext *oc, int file_idx)
 {
     AVStream *st;
@@ -3353,6 +3496,9 @@ static void new_video_stream(AVFormatContext *oc, int file_idx)
                 video_enc->flags |= CODEC_FLAG_PASS2;
             }
         }
+
+        if (forced_key_frames)
+            parse_forced_key_frames(forced_key_frames, ost, video_enc);
     }
     if (video_language) {
         av_metadata_set2(&st->metadata, "language", video_language, 0);
@@ -3362,6 +3508,7 @@ static void new_video_stream(AVFormatContext *oc, int file_idx)
     /* reset some key parameters */
     video_disable = 0;
     av_freep(&video_codec_name);
+    av_freep(&forced_key_frames);
     video_stream_copy = 0;
     frame_pix_fmt = PIX_FMT_NONE;
 }
@@ -3427,7 +3574,7 @@ static void new_audio_stream(AVFormatContext *oc, int file_idx)
         audio_enc->sample_fmt = audio_sample_fmt;
         audio_enc->sample_rate = audio_sample_rate;
         audio_enc->channel_layout = channel_layout;
-        if (avcodec_channel_layout_num_channels(channel_layout) != audio_channels)
+        if (av_get_channel_layout_nb_channels(channel_layout) != audio_channels)
             audio_enc->channel_layout = 0;
         choose_sample_fmt(st, codec);
         choose_sample_rate(st, codec);
@@ -3450,6 +3597,7 @@ static void new_subtitle_stream(AVFormatContext *oc, int file_idx)
     AVOutputStream *ost;
     AVCodec *codec=NULL;
     AVCodecContext *subtitle_enc;
+    enum CodecID codec_id;
 
     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
     if (!st) {
@@ -3460,9 +3608,14 @@ static void new_subtitle_stream(AVFormatContext *oc, int file_idx)
     subtitle_enc = st->codec;
     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
     if(!subtitle_stream_copy){
-        subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
-                                                   avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
-        codec= output_codecs[nb_output_codecs-1] = avcodec_find_encoder_by_name(subtitle_codec_name);
+        if (subtitle_codec_name) {
+            codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
+                                         avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
+            codec= output_codecs[nb_output_codecs-1] = avcodec_find_encoder_by_name(subtitle_codec_name);
+        } else {
+            codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_SUBTITLE);
+            codec = avcodec_find_encoder(codec_id);
+        }
     }
     avcodec_get_context_defaults3(st->codec, codec);
 
@@ -3474,9 +3627,14 @@ static void new_subtitle_stream(AVFormatContext *oc, int file_idx)
     if(subtitle_codec_tag)
         subtitle_enc->codec_tag= subtitle_codec_tag;
 
+    if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
+        subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
+        avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->flags |= CODEC_FLAG_GLOBAL_HEADER;
+    }
     if (subtitle_stream_copy) {
         st->stream_copy = 1;
     } else {
+        subtitle_enc->codec_id = codec_id;
         set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
     }
 
@@ -3664,6 +3822,7 @@ static void opt_output_file(const char *filename)
     set_context_opts(oc, avformat_opts, AV_OPT_FLAG_ENCODING_PARAM, NULL);
 
     nb_streamid_map = 0;
+    av_freep(&forced_key_frames);
 }
 
 /* same option as mencoder */
@@ -3752,6 +3911,8 @@ static void show_usage(void)
 
 static void show_help(void)
 {
+    AVCodec *c;
+
     av_log_set_callback(log_callback_help);
     show_usage();
     show_help_options(options, "Main options:\n",
@@ -3780,6 +3941,16 @@ static void show_help(void)
     printf("\n");
     av_opt_show2(avcodec_opts[0], NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
     printf("\n");
+
+    /* individual codec options */
+    c = NULL;
+    while ((c = av_codec_next(c))) {
+        if (c->priv_class) {
+            av_opt_show2(&c->priv_class, NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
+            printf("\n");
+        }
+    }
+
     av_opt_show2(avformat_opts, NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
     printf("\n");
     av_opt_show2(sws_opts, NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
@@ -3972,32 +4143,11 @@ static int opt_preset(const char *opt, const char *arg)
 {
     FILE *f=NULL;
     char filename[1000], tmp[1000], tmp2[1000], line[1000];
-    int i;
-    const char *base[3]= { getenv("FFMPEG_DATADIR"),
-                           getenv("HOME"),
-                           FFMPEG_DATADIR,
-                         };
-
-    if (*opt != 'f') {
-        for(i=0; i<3 && !f; i++){
-            if(!base[i])
-                continue;
-            snprintf(filename, sizeof(filename), "%s%s/%s.ffpreset", base[i], i != 1 ? "" : "/.ffmpeg", arg);
-            f= fopen(filename, "r");
-            if(!f){
-                char *codec_name= *opt == 'v' ? video_codec_name :
-                                  *opt == 'a' ? audio_codec_name :
-                                                subtitle_codec_name;
-                snprintf(filename, sizeof(filename), "%s%s/%s-%s.ffpreset", base[i],  i != 1 ? "" : "/.ffmpeg", codec_name, arg);
-                f= fopen(filename, "r");
-            }
-        }
-    } else {
-        av_strlcpy(filename, arg, sizeof(filename));
-        f= fopen(filename, "r");
-    }
+    char *codec_name = *opt == 'v' ? video_codec_name :
+                       *opt == 'a' ? audio_codec_name :
+                                     subtitle_codec_name;
 
-    if(!f){
+    if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
         fprintf(stderr, "File for preset '%s' not found\n", arg);
         ffmpeg_exit(1);
     }
@@ -4035,7 +4185,8 @@ static const OptionDef options[] = {
     { "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[:syncfile:syncstream]" },
-    { "map_meta_data", HAS_ARG | OPT_EXPERT, {(void*)opt_map_meta_data}, "set meta data information of outfile from infile", "outfile:infile" },
+    { "map_meta_data", HAS_ARG | OPT_EXPERT, {(void*)opt_map_meta_data}, "set meta data information of outfile from infile", "outfile[,metadata]:infile[,metadata]" },
+    { "map_chapters",  HAS_ARG | OPT_EXPERT, {(void*)opt_map_chapters},  "set chapters mapping", "outfile:infile" },
     { "t", OPT_FUNC2 | HAS_ARG, {(void*)opt_recording_time}, "record or transcode \"duration\" seconds of audio/video", "duration" },
     { "fs", HAS_ARG | OPT_INT64, {(void*)&limit_filesize}, "set the limit file size in bytes", "limit_size" }, //
     { "ss", OPT_FUNC2 | HAS_ARG, {(void*)opt_start_time}, "set the start time offset", "time_off" },
@@ -4076,10 +4227,10 @@ static const OptionDef options[] = {
     { "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, 'list' as argument shows all the pixel formats supported", "format" },
-    { "croptop", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Deprecated, please use the crop avfilter", "size" },
-    { "cropbottom", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, please use the crop avfilter", "size" },
-    { "cropleft", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, please use the crop avfilter", "size" },
-    { "cropright", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, please use the crop avfilter", "size" },
+    { "croptop", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, use the crop filter instead", "size" },
+    { "cropbottom", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, use the crop filter instead", "size" },
+    { "cropleft", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, use the crop filter instead", "size" },
+    { "cropright", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, use the crop filter instead", "size" },
     { "padtop", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "size" },
     { "padbottom", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "size" },
     { "padleft", OPT_FUNC2 | HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "size" },
@@ -4108,12 +4259,13 @@ static const OptionDef options[] = {
     { "inter_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_inter_matrix}, "specify inter matrix coeffs", "matrix" },
     { "top", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_top_field_first}, "top=1/bottom=0/auto=-1 field first", "" },
     { "dc", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_dc_precision}, "intra_dc_precision", "precision" },
-    { "vtag", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_video_tag}, "force video tag/fourcc", "fourcc/tag" },
+    { "vtag", OPT_FUNC2 | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_codec_tag}, "force video tag/fourcc", "fourcc/tag" },
     { "newvideo", OPT_VIDEO | OPT_FUNC2, {(void*)opt_new_stream}, "add a new video stream to the current output stream" },
     { "vlang", HAS_ARG | OPT_STRING | OPT_VIDEO, {(void *)&video_language}, "set the ISO 639 language code (3 letters) of the current video stream" , "code" },
     { "qphist", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, { (void *)&qp_hist }, "show QP histogram" },
     { "force_fps", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&force_fps}, "force the selected framerate, disable the best supported framerate selection" },
     { "streamid", OPT_FUNC2 | HAS_ARG | OPT_EXPERT, {(void*)opt_streamid}, "set the value of an outfile streamid", "streamIndex:value" },
+    { "force_key_frames", OPT_STRING | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void *)&forced_key_frames}, "force key frames at specified timestamps", "timestamps" },
 
     /* audio options */
     { "ab", OPT_FUNC2 | HAS_ARG | OPT_AUDIO, {(void*)opt_bitrate}, "set bitrate (in bits/s)", "bitrate" },
@@ -4123,7 +4275,7 @@ static const OptionDef options[] = {
     { "ac", HAS_ARG | OPT_FUNC2 | 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" },
-    { "atag", HAS_ARG | OPT_EXPERT | OPT_AUDIO, {(void*)opt_audio_tag}, "force audio tag/fourcc", "fourcc/tag" },
+    { "atag", OPT_FUNC2 | HAS_ARG | OPT_EXPERT | OPT_AUDIO, {(void*)opt_codec_tag}, "force audio tag/fourcc", "fourcc/tag" },
     { "vol", OPT_INT | HAS_ARG | OPT_AUDIO, {(void*)&audio_volume}, "change audio volume (256=normal)" , "volume" }, //
     { "newaudio", OPT_AUDIO | OPT_FUNC2, {(void*)opt_new_stream}, "add a new audio stream to the current output stream" },
     { "alang", HAS_ARG | OPT_STRING | OPT_AUDIO, {(void *)&audio_language}, "set the ISO 639 language code (3 letters) of the current audio stream" , "code" },
@@ -4134,7 +4286,7 @@ static const OptionDef options[] = {
     { "scodec", HAS_ARG | OPT_SUBTITLE, {(void*)opt_subtitle_codec}, "force subtitle codec ('copy' to copy stream)", "codec" },
     { "newsubtitle", OPT_SUBTITLE | OPT_FUNC2, {(void*)opt_new_stream}, "add a new subtitle stream to the current output stream" },
     { "slang", HAS_ARG | OPT_STRING | OPT_SUBTITLE, {(void *)&subtitle_language}, "set the ISO 639 language code (3 letters) of the current subtitle stream" , "code" },
-    { "stag", HAS_ARG | OPT_EXPERT | OPT_SUBTITLE, {(void*)opt_subtitle_tag}, "force subtitle tag/fourcc", "fourcc/tag" },
+    { "stag", OPT_FUNC2 | HAS_ARG | OPT_EXPERT | OPT_SUBTITLE, {(void*)opt_codec_tag}, "force subtitle tag/fourcc", "fourcc/tag" },
 
     /* grab options */
     { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_channel}, "set video grab channel (DV1394 only)", "channel" },