]> git.sesse.net Git - ffmpeg/blobdiff - ffmpeg.c
Merge remote-tracking branch 'qatar/master'
[ffmpeg] / ffmpeg.c
index 3411561aee2a1a9ceda9842ed9506ef0ce35d514..3158bb4874e06fe4ca5951261ad99b39171bf8ad 100644 (file)
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -131,6 +131,7 @@ static const char *audio_codec_name    = NULL;
 static const char *subtitle_codec_name = NULL;
 
 static int file_overwrite = 0;
+static int no_file_overwrite = 0;
 static int do_benchmark = 0;
 static int do_hex_dump = 0;
 static int do_pkt_dump = 0;
@@ -141,7 +142,7 @@ static int video_sync_method= -1;
 static int audio_sync_method= 0;
 static float audio_drift_threshold= 0.1;
 static int copy_ts= 0;
-static int copy_tb= 0;
+static int copy_tb= -1;
 static int opt_shortest = 0;
 static char *vstats_filename;
 static FILE *vstats_file;
@@ -770,11 +771,11 @@ static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE};
             }
         }
-        for(; *p!=-1; p++){
+        for (; *p != PIX_FMT_NONE; p++) {
             if(*p == st->codec->pix_fmt)
                 break;
         }
-        if (*p == -1) {
+        if (*p == PIX_FMT_NONE) {
             if(st->codec->pix_fmt != PIX_FMT_NONE)
                 av_log(NULL, AV_LOG_WARNING,
                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
@@ -826,6 +827,14 @@ static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx
     }
 }
 
+static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
+{
+    int fill_char = 0x00;
+    if (sample_fmt == AV_SAMPLE_FMT_U8)
+        fill_char = 0x80;
+    memset(buf, fill_char, size);
+}
+
 static void do_audio_out(AVFormatContext *s,
                          OutputStream *ost,
                          InputStream *ist,
@@ -867,7 +876,9 @@ need_realloc:
     }
 
     if (enc->channels != dec->channels
-     || enc->sample_fmt != dec->sample_fmt)
+     || enc->sample_fmt != dec->sample_fmt
+     || enc->sample_rate!= dec->sample_rate
+    )
         ost->audio_resample = 1;
 
     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
@@ -925,9 +936,9 @@ need_realloc:
 
     if(audio_sync_method){
         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
-                - av_fifo_size(ost->fifo)/(enc->channels * 2);
-        double idelta= delta*dec->sample_rate / enc->sample_rate;
-        int byte_delta= ((int)idelta)*2*dec->channels;
+                - av_fifo_size(ost->fifo)/(enc->channels * osize);
+        int idelta = delta * dec->sample_rate / enc->sample_rate;
+        int byte_delta = idelta * isize * dec->channels;
 
         //FIXME resample delay
         if(fabs(delta) > 50){
@@ -936,7 +947,8 @@ need_realloc:
                     byte_delta= FFMAX(byte_delta, -size);
                     size += byte_delta;
                     buf  -= byte_delta;
-                    av_log(NULL, AV_LOG_VERBOSE, "discarding %d audio samples\n", (int)-delta);
+                    av_log(NULL, AV_LOG_VERBOSE, "discarding %d audio samples\n",
+                           -byte_delta / (isize * dec->channels));
                     if(!size)
                         return;
                     ist->is_start=0;
@@ -949,11 +961,11 @@ need_realloc:
                     }
                     ist->is_start=0;
 
-                    memset(input_tmp, 0, byte_delta);
+                    generate_silence(input_tmp, dec->sample_fmt, byte_delta);
                     memcpy(input_tmp + byte_delta, buf, size);
                     buf= input_tmp;
                     size += byte_delta;
-                    av_log(NULL, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", (int)delta);
+                    av_log(NULL, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", idelta);
                 }
             }else if(audio_sync_method>1){
                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
@@ -966,7 +978,7 @@ need_realloc:
         }
     }else
         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
-                        - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
+                        - av_fifo_size(ost->fifo)/(enc->channels * osize); //FIXME wrong
 
     if (ost->audio_resample) {
         buftmp = audio_buf;
@@ -1246,7 +1258,7 @@ static void do_video_out(AVFormatContext *s,
 
     format_video_sync = video_sync_method;
     if (format_video_sync < 0)
-        format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
+        format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? 0 : 2) : 1;
 
     if (format_video_sync) {
         double vdelta = sync_ipts - ost->sync_opts + duration;
@@ -1283,7 +1295,8 @@ static void do_video_out(AVFormatContext *s,
         av_init_packet(&pkt);
         pkt.stream_index= ost->index;
 
-        if (s->oformat->flags & AVFMT_RAWPICTURE) {
+        if (s->oformat->flags & AVFMT_RAWPICTURE &&
+            enc->codec->id == CODEC_ID_RAWVIDEO) {
             /* raw pictures are written as AVPicture structure to
                avoid any copies. We support temporarily the older
                method. */
@@ -1433,8 +1446,11 @@ static void print_report(OutputFile *output_files,
     oc = output_files[0].ctx;
 
     total_size = avio_size(oc->pb);
-    if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
+    if (total_size < 0) { // FIXME improve avio_size() so it works with non seekable output too
         total_size= avio_tell(oc->pb);
+        if (total_size < 0)
+            total_size = 0;
+    }
 
     buf[0] = '\0';
     vid = 0;
@@ -1525,17 +1541,12 @@ static void print_report(OutputFile *output_files,
                extra_size/1024.0,
                100.0*(total_size - raw)/raw
         );
+        if(video_size + audio_size + extra_size == 0){
+            av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
+        }
     }
 }
 
-static void generate_silence(uint8_t *buf, enum AVSampleFormat sample_fmt, size_t size)
-{
-    int fill_char = 0x00;
-    if (sample_fmt == AV_SAMPLE_FMT_U8)
-        fill_char = 0x80;
-    memset(buf, fill_char, size);
-}
-
 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
 {
     int i, ret;
@@ -1550,7 +1561,7 @@ static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
 
         if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
             continue;
-        if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
+        if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
             continue;
 
         for(;;) {
@@ -1621,30 +1632,358 @@ static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
     }
 }
 
+/*
+ * Check whether a packet from ist should be written into ost at this time
+ */
+static int check_output_constraints(InputStream *ist, OutputStream *ost)
+{
+    OutputFile *of = &output_files[ost->file_index];
+    int ist_index  = ist - input_streams;
+
+    if (ost->source_index != ist_index)
+        return 0;
+
+    if (of->start_time && ist->pts < of->start_time)
+        return 0;
+
+    if (of->recording_time != INT64_MAX &&
+        av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
+                      (AVRational){1, 1000000}) >= 0) {
+        ost->is_past_recording_time = 1;
+        return 0;
+    }
+
+    return 1;
+}
+
+static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
+{
+    OutputFile *of = &output_files[ost->file_index];
+    int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
+    AVPicture pict;
+    AVPacket opkt;
+
+    av_init_packet(&opkt);
+
+    if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
+        !ost->copy_initial_nonkeyframes)
+        return;
+
+    /* force the input stream PTS */
+    if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
+        audio_size += pkt->size;
+    else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
+        video_size += pkt->size;
+        ost->sync_opts++;
+    }
+
+    opkt.stream_index = ost->index;
+    if (pkt->pts != AV_NOPTS_VALUE)
+        opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
+    else
+        opkt.pts = AV_NOPTS_VALUE;
+
+    if (pkt->dts == AV_NOPTS_VALUE)
+        opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
+    else
+        opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
+    opkt.dts -= ost_tb_start_time;
+
+    opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
+    opkt.flags    = pkt->flags;
+
+    //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
+    if(   ost->st->codec->codec_id != CODEC_ID_H264
+       && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
+       && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
+       ) {
+        if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
+            opkt.destruct = av_destruct_packet;
+    } else {
+        opkt.data = pkt->data;
+        opkt.size = pkt->size;
+    }
+    if (of->ctx->oformat->flags & AVFMT_RAWPICTURE) {
+        /* store AVPicture in AVPacket, as expected by the output format */
+        avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
+        opkt.data = (uint8_t *)&pict;
+        opkt.size = sizeof(AVPicture);
+        opkt.flags |= AV_PKT_FLAG_KEY;
+    }
+
+    write_frame(of->ctx, &opkt, ost->st->codec, ost->bitstream_filters);
+    ost->st->codec->frame_number++;
+    ost->frame_number++;
+    av_free_packet(&opkt);
+}
+
+static void rate_emu_sleep(InputStream *ist)
+{
+    if (input_files[ist->file_index].rate_emu) {
+        int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
+        int64_t now = av_gettime() - ist->start;
+        if (pts > now)
+            usleep(pts - now);
+    }
+}
+
+static int transcode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
+{
+    static unsigned int samples_size = 0;
+    int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
+    uint8_t *decoded_data_buf  = NULL;
+    int      decoded_data_size = 0;
+    int i, ret;
+
+    if (pkt && samples_size < FFMAX(pkt->size * bps, AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
+        av_free(samples);
+        samples_size = FFMAX(pkt->size * bps, AVCODEC_MAX_AUDIO_FRAME_SIZE);
+        samples      = av_malloc(samples_size);
+    }
+    decoded_data_size = samples_size;
+
+    ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
+                                pkt);
+    if (ret < 0)
+        return ret;
+    *got_output  = decoded_data_size > 0;
+
+    /* Some bug in mpeg audio decoder gives */
+    /* decoded_data_size < 0, it seems they are overflows */
+    if (!*got_output) {
+        /* no audio frame */
+        return ret;
+    }
+
+    decoded_data_buf = (uint8_t *)samples;
+    ist->next_pts   += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
+                       (ist->st->codec->sample_rate * ist->st->codec->channels);
+
+    // preprocess audio (volume)
+    if (audio_volume != 256) {
+        switch (ist->st->codec->sample_fmt) {
+        case AV_SAMPLE_FMT_U8:
+        {
+            uint8_t *volp = samples;
+            for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
+                int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
+                *volp++ = av_clip_uint8(v);
+            }
+            break;
+        }
+        case AV_SAMPLE_FMT_S16:
+        {
+            int16_t *volp = samples;
+            for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
+                int v = ((*volp) * audio_volume + 128) >> 8;
+                *volp++ = av_clip_int16(v);
+            }
+            break;
+        }
+        case AV_SAMPLE_FMT_S32:
+        {
+            int32_t *volp = samples;
+            for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
+                int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
+                *volp++ = av_clipl_int32(v);
+            }
+            break;
+        }
+        case AV_SAMPLE_FMT_FLT:
+        {
+            float *volp = samples;
+            float scale = audio_volume / 256.f;
+            for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
+                *volp++ *= scale;
+            }
+            break;
+        }
+        case AV_SAMPLE_FMT_DBL:
+        {
+            double *volp = samples;
+            double scale = audio_volume / 256.;
+            for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
+                *volp++ *= scale;
+            }
+            break;
+        }
+        default:
+            av_log(NULL, AV_LOG_FATAL,
+                   "Audio volume adjustment on sample format %s is not supported.\n",
+                   av_get_sample_fmt_name(ist->st->codec->sample_fmt));
+            exit_program(1);
+        }
+    }
+
+    rate_emu_sleep(ist);
+
+    for (i = 0; i < nb_output_streams; i++) {
+        OutputStream *ost = &output_streams[i];
+
+        if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
+            continue;
+        do_audio_out(output_files[ost->file_index].ctx, ost, ist,
+                     decoded_data_buf, decoded_data_size);
+    }
+    return ret;
+}
+
+static int transcode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_t *pkt_pts, int64_t *pkt_dts)
+{
+    AVFrame *decoded_frame, *filtered_frame = NULL;
+    void *buffer_to_free = NULL;
+    int i, ret = 0;
+    float quality = 0;
+#if CONFIG_AVFILTER
+    int frame_available = 1;
+#endif
+    int duration=0;
+
+    if (!(decoded_frame = avcodec_alloc_frame()))
+        return AVERROR(ENOMEM);
+    pkt->pts  = *pkt_pts;
+    pkt->dts  = *pkt_dts;
+    *pkt_pts  = AV_NOPTS_VALUE;
+
+    if (pkt->duration) {
+        duration = av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
+    } else if(ist->st->codec->time_base.num != 0) {
+        int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
+        duration = ((int64_t)AV_TIME_BASE *
+                          ist->st->codec->time_base.num * ticks) /
+                          ist->st->codec->time_base.den;
+    }
+
+    if(*pkt_dts != AV_NOPTS_VALUE && duration) {
+        *pkt_dts += duration;
+    }else
+        *pkt_dts = AV_NOPTS_VALUE;
+
+    ret = avcodec_decode_video2(ist->st->codec,
+                                decoded_frame, got_output, pkt);
+    if (ret < 0)
+        goto fail;
+
+    quality = same_quant ? decoded_frame->quality : 0;
+    if (!*got_output) {
+        /* no picture yet */
+        av_freep(&decoded_frame);
+        return ret;
+    }
+
+    if(decoded_frame->best_effort_timestamp != AV_NOPTS_VALUE)
+        ist->next_pts = ist->pts = decoded_frame->best_effort_timestamp;
+
+    ist->next_pts += duration;
+    pkt->size = 0;
+
+    pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
+
+#if CONFIG_AVFILTER
+    for(i=0;i<nb_output_streams;i++) {
+        OutputStream *ost = ost = &output_streams[i];
+        if(check_output_constraints(ist, ost)){
+            if (!decoded_frame->sample_aspect_ratio.num)
+                decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
+            decoded_frame->pts = ist->pts;
+
+            av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame, AV_VSRC_BUF_FLAG_OVERWRITE);
+        }
+    }
+#endif
+
+    rate_emu_sleep(ist);
+
+    for (i = 0; i < nb_output_streams; i++) {
+        OutputStream *ost = &output_streams[i];
+        int frame_size;
+
+        if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
+            continue;
+
+#if CONFIG_AVFILTER
+        if (ost->input_video_filter) {
+            frame_available = avfilter_poll_frame(ost->output_video_filter->inputs[0]);
+        }
+        while (frame_available) {
+            if (ost->output_video_filter) {
+                AVRational ist_pts_tb = ost->output_video_filter->inputs[0]->time_base;
+                if (av_buffersink_get_buffer_ref(ost->output_video_filter, &ost->picref, 0) < 0)
+                    goto cont;
+                if (!filtered_frame && !(filtered_frame = avcodec_alloc_frame())) {
+                    ret = AVERROR(ENOMEM);
+                    goto fail;
+                }
+                *filtered_frame= *decoded_frame; //for me_threshold
+                if (ost->picref) {
+                    avfilter_fill_frame_from_video_buffer_ref(filtered_frame, ost->picref);
+                    ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
+                }
+            }
+            if (ost->picref->video && !ost->frame_aspect_ratio)
+                ost->st->codec->sample_aspect_ratio = ost->picref->video->sample_aspect_ratio;
+#else
+            filtered_frame = decoded_frame;
+#endif
+
+            do_video_out(output_files[ost->file_index].ctx, ost, ist, filtered_frame, &frame_size,
+                         same_quant ? quality : ost->st->codec->global_quality);
+            if (vstats_filename && frame_size)
+                do_video_stats(output_files[ost->file_index].ctx, ost, frame_size);
+#if CONFIG_AVFILTER
+            cont:
+            frame_available = ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
+            avfilter_unref_buffer(ost->picref);
+        }
+        av_freep(&filtered_frame);
+#endif
+    }
+
+fail:
+    av_free(buffer_to_free);
+    av_freep(&decoded_frame);
+    return ret;
+}
+
+static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
+{
+    AVSubtitle subtitle;
+    int i, ret = avcodec_decode_subtitle2(ist->st->codec,
+                                          &subtitle, got_output, pkt);
+    if (ret < 0)
+        return ret;
+    if (!*got_output)
+        return ret;
+
+    rate_emu_sleep(ist);
+
+    for (i = 0; i < nb_output_streams; i++) {
+        OutputStream *ost = &output_streams[i];
+
+        if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
+            continue;
+
+        do_subtitle_out(output_files[ost->file_index].ctx, ost, ist, &subtitle, pkt->pts);
+    }
+
+    avsubtitle_free(&subtitle);
+    return ret;
+}
+
 /* pkt = NULL means EOF (needed to flush decoder buffers) */
-static int output_packet(InputStream *ist, int ist_index,
+static int output_packet(InputStream *ist,
                          OutputStream *ost_table, int nb_ostreams,
                          const AVPacket *pkt)
 {
-    AVFormatContext *os;
-    OutputStream *ost;
     int ret = 0, i;
     int got_output;
-    void *buffer_to_free = NULL;
-    static unsigned int samples_size= 0;
-    AVSubtitle subtitle, *subtitle_to_free;
     int64_t pkt_dts = AV_NOPTS_VALUE;
     int64_t pkt_pts = AV_NOPTS_VALUE;
-#if CONFIG_AVFILTER
-    int frame_available;
-#endif
-    float quality = 0;
 
     AVPacket avpkt;
-    int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
 
-    if(ist->next_pts == AV_NOPTS_VALUE)
-        ist->next_pts= ist->pts;
+    if (ist->next_pts == AV_NOPTS_VALUE)
+        ist->next_pts = ist->pts;
 
     if (pkt == NULL) {
         /* EOF handling */
@@ -1665,360 +2004,72 @@ static int output_packet(InputStream *ist, int ist_index,
         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
 
     //while we have more to decode or while the decoder did output something on EOF
-    while (avpkt.size > 0 || (!pkt && got_output)) {
-        uint8_t *data_buf, *decoded_data_buf;
-        int data_size, decoded_data_size;
-        AVFrame *decoded_frame, *filtered_frame;
+    while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
     handle_eof:
-        ist->pts= ist->next_pts;
 
-        if(avpkt.size && avpkt.size != pkt->size)
+        ist->pts = ist->next_pts;
+
+        if (avpkt.size && avpkt.size != pkt->size) {
             av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
                    "Multiple frames in a packet from stream %d\n", pkt->stream_index);
-            ist->showed_multi_packet_warning=1;
-
-        /* decode the packet if needed */
-        decoded_frame    = filtered_frame = NULL;
-        decoded_data_buf = NULL; /* fail safe */
-        decoded_data_size= 0;
-        data_buf  = avpkt.data;
-        data_size = avpkt.size;
-        subtitle_to_free = NULL;
-        if (ist->decoding_needed) {
-            switch(ist->st->codec->codec_type) {
-            case AVMEDIA_TYPE_AUDIO:{
-                if(pkt && samples_size < FFMAX(pkt->size * bps, AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
-                    samples_size = FFMAX(pkt->size * bps, AVCODEC_MAX_AUDIO_FRAME_SIZE);
-                    av_free(samples);
-                    samples= av_malloc(samples_size);
-                }
-                decoded_data_size= samples_size;
-                    /* XXX: could avoid copy if PCM 16 bits with same
-                       endianness as CPU */
-                ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
-                                            &avpkt);
-                if (ret < 0)
-                    return ret;
-                avpkt.data += ret;
-                avpkt.size -= ret;
-                data_size   = ret;
-                got_output  = decoded_data_size > 0;
-                /* Some bug in mpeg audio decoder gives */
-                /* decoded_data_size < 0, it seems they are overflows */
-                if (!got_output) {
-                    /* no audio frame */
-                    continue;
-                }
-                decoded_data_buf = (uint8_t *)samples;
-                ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
-                    (ist->st->codec->sample_rate * ist->st->codec->channels);
-                break;}
-            case AVMEDIA_TYPE_VIDEO:
-                    if (!(decoded_frame = avcodec_alloc_frame()))
-                        return AVERROR(ENOMEM);
-                    avpkt.pts = pkt_pts;
-                    avpkt.dts = pkt_dts;
-                    pkt_pts = AV_NOPTS_VALUE;
-                    if(pkt_dts != AV_NOPTS_VALUE && ist->st->codec->time_base.num != 0) {
-                        int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
-                        pkt_dts += ((int64_t)AV_TIME_BASE *
-                                          ist->st->codec->time_base.num * ticks) /
-                            ist->st->codec->time_base.den;
-                    }else
-                        pkt_dts = AV_NOPTS_VALUE;
-
-                    ret = avcodec_decode_video2(ist->st->codec,
-                                                decoded_frame, &got_output, &avpkt);
-                    quality = same_quant ? decoded_frame->quality : 0;
-                    if (ret < 0)
-                        goto fail;
-                    if (!got_output) {
-                        /* no picture yet */
-                        av_freep(&decoded_frame);
-                        goto discard_packet;
-                    }
-
-                    if(decoded_frame->best_effort_timestamp != AV_NOPTS_VALUE)
-                        ist->next_pts = ist->pts = decoded_frame->best_effort_timestamp;
-
-                    if (ist->st->codec->time_base.num != 0) {
-                        int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
-                        ist->next_pts += ((int64_t)AV_TIME_BASE *
-                                          ist->st->codec->time_base.num * ticks) /
-                            ist->st->codec->time_base.den;
-                    }
-                    avpkt.size = 0;
-                    buffer_to_free = NULL;
-                    pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
-                    break;
-            case AVMEDIA_TYPE_SUBTITLE:
-                ret = avcodec_decode_subtitle2(ist->st->codec,
-                                               &subtitle, &got_output, &avpkt);
-                if (ret < 0)
-                    return ret;
-                if (!got_output) {
-                    goto discard_packet;
-                }
-                subtitle_to_free = &subtitle;
-                avpkt.size = 0;
-                break;
-            default:
-                return -1;
-            }
-        } else {
-            switch(ist->st->codec->codec_type) {
-            case AVMEDIA_TYPE_AUDIO:
-                ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
-                    ist->st->codec->sample_rate;
-                break;
-            case AVMEDIA_TYPE_VIDEO:
-                if (ist->st->codec->time_base.num != 0) {
-                    int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
-                    ist->next_pts += ((int64_t)AV_TIME_BASE *
-                                      ist->st->codec->time_base.num * ticks) /
-                        ist->st->codec->time_base.den;
-                }
-                break;
-            }
-            avpkt.size = 0;
+            ist->showed_multi_packet_warning = 1;
         }
 
-#if CONFIG_AVFILTER
-        if(ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
-        for(i=0;i<nb_ostreams;i++) {
-            OutputFile *of = &output_files[ost_table[i].file_index];
-            if (of->start_time == 0 || ist->pts >= of->start_time) {
-                ost = &ost_table[i];
-                if (ost->input_video_filter && ost->source_index == ist_index) {
-                    if (!decoded_frame->sample_aspect_ratio.num)
-                        decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
-                    decoded_frame->pts = ist->pts;
-
-                    av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame, AV_VSRC_BUF_FLAG_OVERWRITE);
-                }
-            }
+        switch(ist->st->codec->codec_type) {
+        case AVMEDIA_TYPE_AUDIO:
+            ret = transcode_audio    (ist, &avpkt, &got_output);
+            break;
+        case AVMEDIA_TYPE_VIDEO:
+            ret = transcode_video    (ist, &avpkt, &got_output, &pkt_pts, &pkt_dts);
+            break;
+        case AVMEDIA_TYPE_SUBTITLE:
+            ret = transcode_subtitles(ist, &avpkt, &got_output);
+            break;
+        default:
+            return -1;
         }
-#endif
 
-        // preprocess audio (volume)
-        if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
-            if (audio_volume != 256) {
-                switch (ist->st->codec->sample_fmt) {
-                case AV_SAMPLE_FMT_U8:
-                {
-                    uint8_t *volp = samples;
-                    for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
-                        int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
-                        *volp++ = av_clip_uint8(v);
-                    }
-                    break;
-                }
-                case AV_SAMPLE_FMT_S16:
-                {
-                    int16_t *volp = samples;
-                    for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
-                        int v = ((*volp) * audio_volume + 128) >> 8;
-                        *volp++ = av_clip_int16(v);
-                    }
-                    break;
-                }
-                case AV_SAMPLE_FMT_S32:
-                {
-                    int32_t *volp = samples;
-                    for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
-                        int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
-                        *volp++ = av_clipl_int32(v);
-                    }
-                    break;
-                }
-                case AV_SAMPLE_FMT_FLT:
-                {
-                    float *volp = samples;
-                    float scale = audio_volume / 256.f;
-                    for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
-                        *volp++ *= scale;
-                    }
-                    break;
-                }
-                case AV_SAMPLE_FMT_DBL:
-                {
-                    double *volp = samples;
-                    double scale = audio_volume / 256.;
-                    for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
-                        *volp++ *= scale;
-                    }
-                    break;
-                }
-                default:
-                    av_log(NULL, AV_LOG_FATAL,
-                           "Audio volume adjustment on sample format %s is not supported.\n",
-                           av_get_sample_fmt_name(ist->st->codec->sample_fmt));
-                    exit_program(1);
-                }
-            }
+        if (ret < 0)
+            return ret;
+        // touch data and size only if not EOF
+        if (pkt) {
+            if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
+                ret = avpkt.size;
+            avpkt.data += ret;
+            avpkt.size -= ret;
         }
-
-        /* frame rate emulation */
-        if (input_files[ist->file_index].rate_emu) {
-            int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
-            int64_t now = av_gettime() - ist->start;
-            if (pts > now)
-                usleep(pts - now);
+        if (!got_output) {
+            continue;
         }
-        /* if output time reached then transcode raw format,
-           encode packets and output them */
-        for (i = 0; i < nb_ostreams; i++) {
-            OutputFile *of = &output_files[ost_table[i].file_index];
-            int frame_size;
-
-            ost = &ost_table[i];
-            if (ost->source_index != ist_index)
-                continue;
-
-            if (of->start_time && ist->pts < of->start_time)
-                continue;
-
-            if (of->recording_time != INT64_MAX &&
-                av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
-                              (AVRational){1, 1000000}) >= 0) {
-                ost->is_past_recording_time = 1;
-                continue;
-            }
-
-#if CONFIG_AVFILTER
-            frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
-                !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
-            while (frame_available) {
-                if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter) {
-                    AVRational ist_pts_tb = ost->output_video_filter->inputs[0]->time_base;
-                    if (av_buffersink_get_buffer_ref(ost->output_video_filter, &ost->picref, 0) < 0)
-                        goto cont;
-                    if (!filtered_frame && !(filtered_frame = avcodec_alloc_frame())) {
-                        ret = AVERROR(ENOMEM);
-                        goto fail;
-                    }
-                    *filtered_frame= *decoded_frame; //for me_threshold
-                    if (ost->picref) {
-                        avfilter_fill_frame_from_video_buffer_ref(filtered_frame, ost->picref);
-                        ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
-                    }
-                }
-#else
-                filtered_frame = decoded_frame;
-#endif
-                os = output_files[ost->file_index].ctx;
-
-                /* set the input output pts pairs */
-                //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
-
-                if (ost->encoding_needed) {
-                    av_assert0(ist->decoding_needed);
-                    switch(ost->st->codec->codec_type) {
-                    case AVMEDIA_TYPE_AUDIO:
-                        do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
-                        break;
-                    case AVMEDIA_TYPE_VIDEO:
-#if CONFIG_AVFILTER
-                        if (ost->picref->video && !ost->frame_aspect_ratio)
-                            ost->st->codec->sample_aspect_ratio = ost->picref->video->sample_aspect_ratio;
-#endif
-                        do_video_out(os, ost, ist, filtered_frame, &frame_size,
-                                     same_quant ? quality : ost->st->codec->global_quality);
-                        if (vstats_filename && frame_size)
-                            do_video_stats(os, ost, frame_size);
-                        break;
-                    case AVMEDIA_TYPE_SUBTITLE:
-                        do_subtitle_out(os, ost, ist, &subtitle,
-                                        pkt->pts);
-                        break;
-                    default:
-                        abort();
-                    }
-                } else {
-                    AVPicture pict;
-                    AVPacket opkt;
-                    int64_t ost_tb_start_time= av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
-                    av_init_packet(&opkt);
-
-                    if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
-                        !ost->copy_initial_nonkeyframes)
-#if !CONFIG_AVFILTER
-                        continue;
-#else
-                        goto cont;
-#endif
-
-                    /* no reencoding needed : output the packet directly */
-                    /* force the input stream PTS */
-
-                    if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
-                        audio_size += data_size;
-                    else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
-                        video_size += data_size;
-                        ost->sync_opts++;
-                    }
-
-                    opkt.stream_index= ost->index;
-                    if(pkt->pts != AV_NOPTS_VALUE)
-                        opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
-                    else
-                        opkt.pts= AV_NOPTS_VALUE;
-
-                    if (pkt->dts == AV_NOPTS_VALUE)
-                        opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
-                    else
-                        opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
-                    opkt.dts -= ost_tb_start_time;
-
-                    opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
-                    opkt.flags= pkt->flags;
-
-                    //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
-                    if(   ost->st->codec->codec_id != CODEC_ID_H264
-                       && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
-                       && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
-                       ) {
-                        if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
-                            opkt.destruct= av_destruct_packet;
-                    } else {
-                        opkt.data = data_buf;
-                        opkt.size = data_size;
-                    }
+    }
 
-                    if (os->oformat->flags & AVFMT_RAWPICTURE) {
-                        /* store AVPicture in AVPacket, as expected by the output format */
-                        avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
-                        opkt.data = (uint8_t *)&pict;
-                        opkt.size = sizeof(AVPicture);
-                        opkt.flags |= AV_PKT_FLAG_KEY;
-                    }
-                    write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
-                    ost->st->codec->frame_number++;
-                    ost->frame_number++;
-                    av_free_packet(&opkt);
-                }
-#if CONFIG_AVFILTER
-                cont:
-                frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
-                                   ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
-                avfilter_unref_buffer(ost->picref);
+    /* handle stream copy */
+    if (!ist->decoding_needed) {
+        rate_emu_sleep(ist);
+        ist->pts = ist->next_pts;
+        switch (ist->st->codec->codec_type) {
+        case AVMEDIA_TYPE_AUDIO:
+            ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
+                             ist->st->codec->sample_rate;
+            break;
+        case AVMEDIA_TYPE_VIDEO:
+            if (ist->st->codec->time_base.num != 0) {
+                int ticks = ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
+                ist->next_pts += ((int64_t)AV_TIME_BASE *
+                                  ist->st->codec->time_base.num * ticks) /
+                                  ist->st->codec->time_base.den;
             }
-            av_freep(&filtered_frame);
-#endif
+            break;
         }
+    }
+    for (i = 0; pkt && i < nb_ostreams; i++) {
+        OutputStream *ost = &ost_table[i];
 
-fail:
-        av_free(buffer_to_free);
-        /* XXX: allocate the subtitles in the codec ? */
-        if (subtitle_to_free) {
-            avsubtitle_free(subtitle_to_free);
-            subtitle_to_free = NULL;
-        }
-        av_freep(&decoded_frame);
-        if (ret < 0)
-            return ret;
+        if (!check_output_constraints(ist, ost) || ost->encoding_needed)
+            continue;
+
+        do_streamcopy(ist, ost, pkt);
     }
- discard_packet:
 
     return 0;
 }
@@ -2142,15 +2193,17 @@ static int transcode_init(OutputFile *output_files, int nb_output_files,
 
             codec->time_base = ist->st->time_base;
             if(!strcmp(oc->oformat->name, "avi")) {
-                if (!copy_tb &&
-                    av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base) &&
-                    av_q2d(ist->st->time_base) < 1.0/500){
+                if (   copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
+                                 && av_q2d(ist->st->time_base) < 1.0/500
+                    || copy_tb==0){
                     codec->time_base = icodec->time_base;
                     codec->time_base.num *= icodec->ticks_per_frame;
                     codec->time_base.den *= 2;
                 }
             } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)) {
-                if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500){
+                if(   copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
+                                && av_q2d(ist->st->time_base) < 1.0/500
+                   || copy_tb==0){
                     codec->time_base = icodec->time_base;
                     codec->time_base.num *= icodec->ticks_per_frame;
                 }
@@ -2716,7 +2769,7 @@ static int transcode(OutputFile *output_files, int nb_output_files,
         }
 
         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
-        if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
+        if (output_packet(ist, output_streams, nb_output_streams, &pkt) < 0) {
 
             av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
                    ist->file_index, ist->st->index);
@@ -2737,7 +2790,7 @@ static int transcode(OutputFile *output_files, int nb_output_files,
     for (i = 0; i < nb_input_streams; i++) {
         ist = &input_streams[i];
         if (ist->decoding_needed) {
-            output_packet(ist, i, output_streams, nb_output_streams, NULL);
+            output_packet(ist, output_streams, nb_output_streams, NULL);
         }
     }
     flush_encoders(output_streams, nb_output_streams);
@@ -3147,7 +3200,7 @@ static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
         ist->st = st;
         ist->file_index = nb_input_files;
         ist->discard = 1;
-        ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
+        ist->opts = filter_codec_opts(codec_opts, choose_decoder(o, ic, st), ic, st);
 
         ist->ts_scale = 1.0;
         MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
@@ -3191,6 +3244,8 @@ static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
                 st->discard= video_discard;
             break;
         case AVMEDIA_TYPE_DATA:
+            if (o->data_disable)
+                st->discard= AVDISCARD_ALL;
             break;
         case AVMEDIA_TYPE_SUBTITLE:
             if(!ist->dec)
@@ -3209,11 +3264,11 @@ static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
 
 static void assert_file_overwrite(const char *filename)
 {
-    if (!file_overwrite &&
+    if ((!file_overwrite || no_file_overwrite) &&
         (strchr(filename, ':') == NULL || filename[1] == ':' ||
          av_strstart(filename, "file:", NULL))) {
         if (avio_check(filename, 0) == 0) {
-            if (!using_stdin) {
+            if (!using_stdin && (!no_file_overwrite || file_overwrite)) {
                 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
                 fflush(stderr);
                 term_exit();
@@ -3504,7 +3559,7 @@ static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, e
     st->codec->codec_type = type;
     choose_encoder(o, oc, ost);
     if (ost->enc) {
-        ost->opts  = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
+        ost->opts  = filter_codec_opts(codec_opts, ost->enc, oc, st);
     }
 
     avcodec_get_context_defaults3(st->codec, ost->enc);
@@ -4008,6 +4063,8 @@ static void opt_output_file(void *optctx, const char *filename)
                 continue;
             if(o->   video_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
                 continue;
+            if(o->    data_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_DATA)
+                continue;
 
             switch (ist->st->codec->codec_type) {
             case AVMEDIA_TYPE_VIDEO:    ost = new_video_stream(o, oc);    break;
@@ -4380,7 +4437,7 @@ static int opt_target(OptionsContext *o, const char *opt, const char *arg)
         parse_option(o, "r", frame_rates[norm], options);
         opt_default("g", norm == PAL ? "15" : "18");
 
-        opt_default("b", "1150000");
+        opt_default("b:v", "1150000");
         opt_default("maxrate", "1150000");
         opt_default("minrate", "1150000");
         opt_default("bufsize", "327680"); // 40*1024*8;
@@ -4409,7 +4466,7 @@ static int opt_target(OptionsContext *o, const char *opt, const char *arg)
         parse_option(o, "pix_fmt", "yuv420p", options);
         opt_default("g", norm == PAL ? "15" : "18");
 
-        opt_default("b", "2040000");
+        opt_default("b:v", "2040000");
         opt_default("maxrate", "2516000");
         opt_default("minrate", "0"); //1145000;
         opt_default("bufsize", "1835008"); //224*1024*8;
@@ -4432,7 +4489,7 @@ static int opt_target(OptionsContext *o, const char *opt, const char *arg)
         parse_option(o, "pix_fmt", "yuv420p", options);
         opt_default("g", norm == PAL ? "15" : "18");
 
-        opt_default("b", "6000000");
+        opt_default("b:v", "6000000");
         opt_default("maxrate", "9000000");
         opt_default("minrate", "0"); //1500000;
         opt_default("bufsize", "1835008"); //224*1024*8;
@@ -4581,6 +4638,7 @@ static const OptionDef options[] = {
     { "f", HAS_ARG | OPT_STRING | OPT_OFFSET, {.off = OFFSET(format)}, "force format", "fmt" },
     { "i", HAS_ARG | OPT_FUNC2, {(void*)opt_input_file}, "input file name", "filename" },
     { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
+    { "n", OPT_BOOL, {(void*)&no_file_overwrite}, "do not overwrite output files" },
     { "c", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(codec_names)}, "codec name", "codec" },
     { "codec", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(codec_names)}, "codec name", "codec" },
     { "pre", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(presets)}, "preset name", "preset" },
@@ -4614,7 +4672,7 @@ static const OptionDef options[] = {
     { "async", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&audio_sync_method}, "audio sync method", "" },
     { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&audio_drift_threshold}, "audio drift threshold", "threshold" },
     { "copyts", OPT_BOOL | OPT_EXPERT, {(void*)&copy_ts}, "copy timestamps" },
-    { "copytb", OPT_BOOL | OPT_EXPERT, {(void*)&copy_tb}, "copy input stream time base when stream copying" },
+    { "copytb", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&copy_tb}, "copy input stream time base when stream copying", "source" },
     { "shortest", OPT_BOOL | OPT_EXPERT, {(void*)&opt_shortest}, "finish encoding within shortest input" }, //
     { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&dts_delta_threshold}, "timestamp discontinuity delta threshold", "threshold" },
     { "xerror", OPT_BOOL, {(void*)&exit_on_error}, "exit on error", "error" },
@@ -4711,6 +4769,7 @@ static const OptionDef options[] = {
     { "fpre", HAS_ARG | OPT_EXPERT| OPT_FUNC2, {(void*)opt_preset}, "set options from indicated preset file", "filename" },
     /* data codec support */
     { "dcodec", HAS_ARG | OPT_DATA | OPT_FUNC2, {(void*)opt_data_codec}, "force data codec ('copy' to copy stream)", "codec" },
+    { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET, {.off = OFFSET(data_disable)}, "disable data" },
 
     { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
     { NULL, },