diff --git a/doc/APIchanges b/doc/APIchanges
index c7389241d5..fe77697d93 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -26,6 +26,9 @@ API changes, most recent first:
 2011-05-XX - XXXXXX - lavfi 2.6.0 - avcodec.h
   Add avfilter_get_video_buffer_ref_from_frame() to libavfilter/avcodec.h.
 
+2011-05-25 - 30315a8 - lavf 53.1.0 - avformat.h
+  Add fps_probe_size to AVFormatContext.
+
 2011-05-18 - 64150ff - lavc 53.4.0 - AVCodecContext.request_sample_fmt
   Add request_sample_fmt field to AVCodecContext.
 
diff --git a/doc/encoders.texi b/doc/encoders.texi
index 5ab3f334f2..9b5c2af008 100644
--- a/doc/encoders.texi
+++ b/doc/encoders.texi
@@ -477,5 +477,4 @@ Selected by Encoder (default)
 
 @end table
 
-@c man end ENCODERS
-
+@c man end AUDIO ENCODERS
diff --git a/ffmpeg.c b/ffmpeg.c
index 7f7e060856..f30a276d8b 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -114,11 +114,9 @@ static const OptionDef options[];
 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
 
 static const char *last_asked_format = NULL;
-static AVFormatContext *input_files[MAX_FILES];
 static int64_t input_files_ts_offset[MAX_FILES];
 static double *input_files_ts_scale[MAX_FILES] = {NULL};
 static AVCodec **input_codecs = NULL;
-static int nb_input_files = 0;
 static int nb_input_codecs = 0;
 static int nb_input_files_ts_scale[MAX_FILES] = {0};
 
@@ -319,7 +317,6 @@ static int nb_output_streams_for_file[MAX_FILES] = { 0 };
 
 typedef struct AVInputStream {
     int file_index;
-    int index;
     AVStream *st;
     int discard;             /* true if stream data should be discarded */
     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
@@ -339,10 +336,10 @@ typedef struct AVInputStream {
 } AVInputStream;
 
 typedef struct AVInputFile {
+    AVFormatContext *ctx;
     int eof_reached;      /* true if eof reached */
     int ist_index;        /* index of first stream in ist_table */
     int buffer_size;      /* current total buffer size */
-    int nb_streams;       /* nb streams we are aware of */
 } AVInputFile;
 
 #if HAVE_TERMIOS_H
@@ -351,6 +348,11 @@ typedef struct AVInputFile {
 static struct termios oldtty;
 #endif
 
+static AVInputStream *input_streams = NULL;
+static int         nb_input_streams = 0;
+static AVInputFile   *input_files   = NULL;
+static int         nb_input_files   = 0;
+
 #if CONFIG_AVFILTER
 
 static int configure_video_filters(AVInputStream *ist, AVOutputStream *ost)
@@ -537,7 +539,7 @@ static int ffmpeg_exit(int ret)
         av_free(output_streams_for_file[i]);
     }
     for(i=0;i<nb_input_files;i++) {
-        av_close_input_file(input_files[i]);
+        av_close_input_file(input_files[i].ctx);
         av_free(input_files_ts_scale[i]);
     }
 
@@ -554,6 +556,9 @@ static int ffmpeg_exit(int ret)
     av_free(stream_maps);
     av_free(meta_data_maps);
 
+    av_freep(&input_streams);
+    av_freep(&input_files);
+
     av_free(video_codec_name);
     av_free(audio_codec_name);
     av_free(subtitle_codec_name);
@@ -839,7 +844,7 @@ need_realloc:
     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,
+                   ist->file_index, ist->st->index,
                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
             ost->resample_sample_fmt  = dec->sample_fmt;
@@ -1202,7 +1207,7 @@ static void do_video_out(AVFormatContext *s,
     if (resample_changed) {
         av_log(NULL, AV_LOG_INFO,
                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
-               ist->file_index, ist->index,
+               ist->file_index, ist->st->index,
                ost->resample_width, ost->resample_height, avcodec_get_pix_fmt_name(ost->resample_pix_fmt),
                dec->width         , dec->height         , avcodec_get_pix_fmt_name(dec->pix_fmt));
         ost->resample_width   = dec->width;
@@ -1903,7 +1908,7 @@ static void print_sdp(AVFormatContext **avc, int n)
 
 static int copy_chapters(int infile, int outfile)
 {
-    AVFormatContext *is = input_files[infile];
+    AVFormatContext *is = input_files[infile].ctx;
     AVFormatContext *os = output_files[outfile];
     int i;
 
@@ -1969,16 +1974,16 @@ static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
  */
 static int transcode(AVFormatContext **output_files,
                      int nb_output_files,
-                     AVFormatContext **input_files,
+                     AVInputFile *input_files,
                      int nb_input_files,
                      AVStreamMap *stream_maps, int nb_stream_maps)
 {
-    int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0, step;
+    int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0,step;
+
     AVFormatContext *is, *os;
     AVCodecContext *codec, *icodec;
     AVOutputStream *ost, **ost_table = NULL;
-    AVInputStream *ist, **ist_table = NULL;
-    AVInputFile *file_table;
+    AVInputStream *ist;
     char error[1024];
     int key;
     int want_sdp = 1;
@@ -1987,46 +1992,9 @@ static int transcode(AVFormatContext **output_files,
     int nb_frame_threshold[AVMEDIA_TYPE_NB]={0};
     int nb_streams[AVMEDIA_TYPE_NB]={0};
 
-    file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
-    if (!file_table)
-        goto fail;
-
-    /* input stream init */
-    j = 0;
-    for(i=0;i<nb_input_files;i++) {
-        is = input_files[i];
-        file_table[i].ist_index = j;
-        file_table[i].nb_streams = is->nb_streams;
-        j += is->nb_streams;
-    }
-    nb_istreams = j;
-
-    ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
-    if (!ist_table)
-        goto fail;
-
-    for(i=0;i<nb_istreams;i++) {
-        ist = av_mallocz(sizeof(AVInputStream));
-        if (!ist)
-            goto fail;
-        ist_table[i] = ist;
-    }
-    j = 0;
-    for(i=0;i<nb_input_files;i++) {
-        is = input_files[i];
-        for(k=0;k<is->nb_streams;k++) {
-            ist = ist_table[j++];
-            ist->st = is->streams[k];
-            ist->file_index = i;
-            ist->index = k;
-            ist->discard = 1; /* the stream is discarded by default
-                                 (changed later) */
-
-            if (rate_emu) {
-                ist->start = av_gettime();
-            }
-        }
-    }
+    if (rate_emu)
+        for (i = 0; i < nb_input_streams; i++)
+            input_streams[i].start = av_gettime();
 
     /* output stream init */
     nb_ostreams = 0;
@@ -2052,7 +2020,7 @@ static int transcode(AVFormatContext **output_files,
         int si = stream_maps[i].stream_index;
 
         if (fi < 0 || fi > nb_input_files - 1 ||
-            si < 0 || si > file_table[fi].nb_streams - 1) {
+            si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
             ret = AVERROR(EINVAL);
             goto fail;
@@ -2060,7 +2028,7 @@ static int transcode(AVFormatContext **output_files,
         fi = stream_maps[i].sync_file_index;
         si = stream_maps[i].sync_stream_index;
         if (fi < 0 || fi > nb_input_files - 1 ||
-            si < 0 || si > file_table[fi].nb_streams - 1) {
+            si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
             ret = AVERROR(EINVAL);
             goto fail;
@@ -2082,12 +2050,12 @@ static int transcode(AVFormatContext **output_files,
         for(j=0; j<AVMEDIA_TYPE_NB; j++)
             nb_frame_threshold[j] += step;
 
-        for(j=0; j<nb_istreams; j++) {
+        for(j=0; j<nb_input_streams; j++) {
             int skip=0;
-            ist = ist_table[j];
+            ist = &input_streams[j];
             if(opt_programid){
                 int pi,si;
-                AVFormatContext *f= input_files[ ist->file_index ];
+                AVFormatContext *f= input_files[ ist->file_index ].ctx;
                 skip=1;
                 for(pi=0; pi<f->nb_programs; pi++){
                     AVProgram *p= f->programs[pi];
@@ -2115,11 +2083,11 @@ static int transcode(AVFormatContext **output_files,
             ost = ost_table[n] = output_streams_for_file[k][i];
             ost->st = os->streams[i];
             if (nb_stream_maps > 0) {
-                ost->source_index = file_table[stream_maps[n].file_index].ist_index +
+                ost->source_index = input_files[stream_maps[n].file_index].ist_index +
                     stream_maps[n].stream_index;
 
                 /* Sanity check that the stream types match */
-                if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
+                if (input_streams[ost->source_index].st->codec->codec_type != ost->st->codec->codec_type) {
                     int i= ost->file_index;
                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
@@ -2131,12 +2099,12 @@ static int transcode(AVFormatContext **output_files,
             } else {
                 /* get corresponding input stream index : we select the first one with the right type */
                 found = 0;
-                for(j=0;j<nb_istreams;j++) {
+                for (j = 0; j < nb_input_streams; j++) {
                     int skip=0;
-                    ist = ist_table[j];
+                    ist = &input_streams[j];
                     if(opt_programid){
                         int pi,si;
-                        AVFormatContext *f= input_files[ ist->file_index ];
+                        AVFormatContext *f = input_files[ist->file_index].ctx;
                         skip=1;
                         for(pi=0; pi<f->nb_programs; pi++){
                             AVProgram *p= f->programs[pi];
@@ -2159,8 +2127,8 @@ static int transcode(AVFormatContext **output_files,
                 if (!found) {
                     if(! opt_programid) {
                         /* try again and reuse existing stream */
-                        for(j=0;j<nb_istreams;j++) {
-                            ist = ist_table[j];
+                        for (j = 0; j < nb_input_streams; j++) {
+                            ist = &input_streams[j];
                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
                                 && ist->st->discard != AVDISCARD_ALL) {
                                 ost->source_index = j;
@@ -2177,10 +2145,10 @@ static int transcode(AVFormatContext **output_files,
                     }
                 }
             }
-            ist = ist_table[ost->source_index];
+            ist = &input_streams[ost->source_index];
             ist->discard = 0;
             ost->sync_ist = (nb_stream_maps > 0) ?
-                ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
+                &input_streams[input_files[stream_maps[n].sync_file_index].ist_index +
                          stream_maps[n].sync_stream_index] : ist;
         }
     }
@@ -2189,7 +2157,7 @@ static int transcode(AVFormatContext **output_files,
     for(i=0;i<nb_ostreams;i++) {
         ost = ost_table[i];
         os = output_files[ost->file_index];
-        ist = ist_table[ost->source_index];
+        ist = &input_streams[ost->source_index];
 
         codec = ost->st->codec;
         icodec = ist->st->codec;
@@ -2368,7 +2336,7 @@ 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;
+            AVCodecContext *dec = input_streams[ost->source_index].st->codec;
             if (!codec)
                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
             if (!codec) {
@@ -2397,21 +2365,21 @@ static int transcode(AVFormatContext **output_files,
     }
 
     /* open each decoder */
-    for(i=0;i<nb_istreams;i++) {
-        ist = ist_table[i];
+    for (i = 0; i < nb_input_streams; i++) {
+        ist = &input_streams[i];
         if (ist->decoding_needed) {
             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
             if (!codec)
                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
             if (!codec) {
                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
-                        ist->st->codec->codec_id, ist->file_index, ist->index);
+                        ist->st->codec->codec_id, ist->file_index, ist->st->index);
                 ret = AVERROR(EINVAL);
                 goto dump_format;
             }
             if (avcodec_open(ist->st->codec, codec) < 0) {
                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
-                        ist->file_index, ist->index);
+                        ist->file_index, ist->st->index);
                 ret = AVERROR(EINVAL);
                 goto dump_format;
             }
@@ -2421,9 +2389,9 @@ static int transcode(AVFormatContext **output_files,
     }
 
     /* init pts */
-    for(i=0;i<nb_istreams;i++) {
+    for (i = 0; i < nb_input_streams; i++) {
         AVStream *st;
-        ist = ist_table[i];
+        ist = &input_streams[i];
         st= ist->st;
         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
         ist->next_pts = AV_NOPTS_VALUE;
@@ -2452,7 +2420,7 @@ static int transcode(AVFormatContext **output_files,
         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];
+        files[1] = input_files[in_file_index].ctx;
 
         for (j = 0; j < 2; j++) {
             AVMetaDataMap *map = &meta_data_maps[i][j];
@@ -2483,7 +2451,7 @@ static int transcode(AVFormatContext **output_files,
     if (metadata_global_autocopy) {
 
         for (i = 0; i < nb_output_files; i++)
-            av_metadata_copy(&output_files[i]->metadata, input_files[0]->metadata,
+            av_metadata_copy(&output_files[i]->metadata, input_files[0].ctx->metadata,
                              AV_METADATA_DONT_OVERWRITE);
     }
 
@@ -2510,7 +2478,7 @@ static int transcode(AVFormatContext **output_files,
     /* copy chapters from the first input file that has them*/
     if (!nb_chapter_maps)
         for (i = 0; i < nb_input_files; i++) {
-            if (!input_files[i]->nb_chapters)
+            if (!input_files[i].ctx->nb_chapters)
                 continue;
 
             for (j = 0; j < nb_output_files; j++)
@@ -2545,14 +2513,14 @@ static int transcode(AVFormatContext **output_files,
         for(i=0;i<nb_ostreams;i++) {
             ost = ost_table[i];
             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
-                    ist_table[ost->source_index]->file_index,
-                    ist_table[ost->source_index]->index,
+                    input_streams[ost->source_index].file_index,
+                    input_streams[ost->source_index].st->index,
                     ost->file_index,
                     ost->index);
-            if (ost->sync_ist != ist_table[ost->source_index])
+            if (ost->sync_ist != &input_streams[ost->source_index])
                 fprintf(stderr, " [sync #%d.%d]",
                         ost->sync_ist->file_index,
-                        ost->sync_ist->index);
+                        ost->sync_ist->st->index);
             fprintf(stderr, "\n");
         }
     }
@@ -2607,16 +2575,14 @@ static int transcode(AVFormatContext **output_files,
             if (key == 'd' || key == 'D'){
                 int debug=0;
                 if(key == 'D') {
-                    ist = ist_table[0];
-                    debug = ist->st->codec->debug<<1;
+                    debug = input_streams[0].st->codec->debug<<1;
                     if(!debug) debug = 1;
                     while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
                         debug += debug;
                 }else
                     scanf("%d", &debug);
-                for(i=0;i<nb_istreams;i++) {
-                    ist = ist_table[i];
-                    ist->st->codec->debug = debug;
+                for(i=0;i<nb_input_streams;i++) {
+                    input_streams[i].st->codec->debug = debug;
                 }
                 for(i=0;i<nb_ostreams;i++) {
                     ost = ost_table[i];
@@ -2645,12 +2611,12 @@ static int transcode(AVFormatContext **output_files,
             double ipts, opts;
             ost = ost_table[i];
             os = output_files[ost->file_index];
-            ist = ist_table[ost->source_index];
+            ist = &input_streams[ost->source_index];
             if(ist->is_past_recording_time || no_packet[ist->file_index])
                 continue;
                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
             ipts = (double)ist->pts;
-            if (!file_table[ist->file_index].eof_reached){
+            if (!input_files[ist->file_index].eof_reached){
                 if(ipts < ipts_min) {
                     ipts_min = ipts;
                     if(input_sync ) file_index = ist->file_index;
@@ -2681,7 +2647,7 @@ static int transcode(AVFormatContext **output_files,
             break;
 
         /* read a frame from it and output it in the fifo */
-        is = input_files[file_index];
+        is = input_files[file_index].ctx;
         ret= av_read_frame(is, &pkt);
         if(ret == AVERROR(EAGAIN)){
             no_packet[file_index]=1;
@@ -2689,7 +2655,7 @@ static int transcode(AVFormatContext **output_files,
             continue;
         }
         if (ret < 0) {
-            file_table[file_index].eof_reached = 1;
+            input_files[file_index].eof_reached = 1;
             if (opt_shortest)
                 break;
             else
@@ -2705,10 +2671,10 @@ static int transcode(AVFormatContext **output_files,
         }
         /* the following test is needed in case new streams appear
            dynamically in stream : we ignore them */
-        if (pkt.stream_index >= file_table[file_index].nb_streams)
+        if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
             goto discard_packet;
-        ist_index = file_table[file_index].ist_index + pkt.stream_index;
-        ist = ist_table[ist_index];
+        ist_index = input_files[file_index].ist_index + pkt.stream_index;
+        ist = &input_streams[ist_index];
         if (ist->discard)
             goto discard_packet;
 
@@ -2751,12 +2717,12 @@ static int transcode(AVFormatContext **output_files,
             goto discard_packet;
         }
 
-        //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
+        //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
 
             if (verbose >= 0)
                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
-                        ist->file_index, ist->index);
+                        ist->file_index, ist->st->index);
             if (exit_on_error)
                 ffmpeg_exit(1);
             av_free_packet(&pkt);
@@ -2771,8 +2737,8 @@ static int transcode(AVFormatContext **output_files,
     }
 
     /* at the end of stream, we must flush the decoder buffers */
-    for(i=0;i<nb_istreams;i++) {
-        ist = ist_table[i];
+    for (i = 0; i < nb_input_streams; i++) {
+        ist = &input_streams[i];
         if (ist->decoding_needed) {
             output_packet(ist, i, ost_table, nb_ostreams, NULL);
         }
@@ -2802,8 +2768,8 @@ static int transcode(AVFormatContext **output_files,
     }
 
     /* close each decoder */
-    for(i=0;i<nb_istreams;i++) {
-        ist = ist_table[i];
+    for (i = 0; i < nb_input_streams; i++) {
+        ist = &input_streams[i];
         if (ist->decoding_needed) {
             avcodec_close(ist->st->codec);
         }
@@ -2814,15 +2780,7 @@ static int transcode(AVFormatContext **output_files,
 
  fail:
     av_freep(&bit_buffer);
-    av_free(file_table);
 
-    if (ist_table) {
-        for(i=0;i<nb_istreams;i++) {
-            ist = ist_table[i];
-            av_free(ist);
-        }
-        av_free(ist_table);
-    }
     if (ost_table) {
         for(i=0;i<nb_ostreams;i++) {
             ost = ost_table[i];
@@ -3375,8 +3333,17 @@ static void opt_input_file(const char *filename)
     for(i=0;i<ic->nb_streams;i++) {
         AVStream *st = ic->streams[i];
         AVCodecContext *dec = st->codec;
+        AVInputStream *ist;
+
         dec->thread_count = thread_count;
         input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
+
+        input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
+        ist = &input_streams[nb_input_streams - 1];
+        ist->st = st;
+        ist->file_index = nb_input_files;
+        ist->discard = 1;
+
         switch (dec->codec_type) {
         case AVMEDIA_TYPE_AUDIO:
             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
@@ -3449,13 +3416,14 @@ static void opt_input_file(const char *filename)
         }
     }
 
-    input_files[nb_input_files] = ic;
     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
     /* dump the file content */
     if (verbose >= 0)
         av_dump_format(ic, nb_input_files, filename, 0);
 
-    nb_input_files++;
+    input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
+    input_files[nb_input_files - 1].ctx        = ic;
+    input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
 
     video_channel = 0;
     top_field_first = -1;
@@ -3481,7 +3449,7 @@ static void check_inputs(int *has_video_ptr,
     has_data = 0;
 
     for(j=0;j<nb_input_files;j++) {
-        ic = input_files[j];
+        ic = input_files[j].ctx;
         for(i=0;i<ic->nb_streams;i++) {
             AVCodecContext *enc = ic->streams[i]->codec;
             switch(enc->codec_type) {
@@ -4159,9 +4127,9 @@ static void opt_target(const char *arg)
             /* Try to determine PAL/NTSC by peeking in the input files */
             if(nb_input_files) {
                 int i, j;
-                for(j = 0; j < nb_input_files; j++) {
-                    for(i = 0; i < input_files[j]->nb_streams; i++) {
-                        AVCodecContext *c = input_files[j]->streams[i]->codec;
+                for (j = 0; j < nb_input_files; j++) {
+                    for (i = 0; i < input_files[j].ctx->nb_streams; i++) {
+                        AVCodecContext *c = input_files[j].ctx->streams[i]->codec;
                         if(c->codec_type != AVMEDIA_TYPE_VIDEO)
                             continue;
                         fr = c->time_base.den * 1000 / c->time_base.num;
diff --git a/libavcodec/h263dec.c b/libavcodec/h263dec.c
index bf6a856796..2cd96f65d9 100644
--- a/libavcodec/h263dec.c
+++ b/libavcodec/h263dec.c
@@ -70,33 +70,27 @@ av_cold int ff_h263_decode_init(AVCodecContext *avctx)
     case CODEC_ID_MPEG4:
         break;
     case CODEC_ID_MSMPEG4V1:
-        s->h263_msmpeg4 = 1;
         s->h263_pred = 1;
         s->msmpeg4_version=1;
         break;
     case CODEC_ID_MSMPEG4V2:
-        s->h263_msmpeg4 = 1;
         s->h263_pred = 1;
         s->msmpeg4_version=2;
         break;
     case CODEC_ID_MSMPEG4V3:
-        s->h263_msmpeg4 = 1;
         s->h263_pred = 1;
         s->msmpeg4_version=3;
         break;
     case CODEC_ID_WMV1:
-        s->h263_msmpeg4 = 1;
         s->h263_pred = 1;
         s->msmpeg4_version=4;
         break;
     case CODEC_ID_WMV2:
-        s->h263_msmpeg4 = 1;
         s->h263_pred = 1;
         s->msmpeg4_version=5;
         break;
     case CODEC_ID_VC1:
     case CODEC_ID_WMV3:
-        s->h263_msmpeg4 = 1;
         s->h263_pred = 1;
         s->msmpeg4_version=6;
         avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
@@ -672,7 +666,7 @@ retry:
         decode_slice(s);
     }
 
-    if (s->h263_msmpeg4 && s->msmpeg4_version<4 && s->pict_type==AV_PICTURE_TYPE_I)
+    if (s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type==AV_PICTURE_TYPE_I)
         if(!CONFIG_MSMPEG4_DECODER || msmpeg4_decode_ext_header(s, buf_size) < 0){
             s->error_status_table[s->mb_num-1]= AC_ERROR|DC_ERROR|MV_ERROR;
         }
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index d210865d29..80c6bb386a 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -2155,7 +2155,7 @@ void MPV_decode_mb_internal(MpegEncContext *s, DCTELEM block[12][64],
             }
 
             /* add dct residue */
-            if(s->encoding || !(   s->h263_msmpeg4 || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO
+            if(s->encoding || !(   s->msmpeg4_version || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO
                                 || (s->codec_id==CODEC_ID_MPEG4 && !s->mpeg_quant))){
                 add_dequant_dct(s, block[0], 0, dest_y                          , dct_linesize, s->qscale);
                 add_dequant_dct(s, block[1], 1, dest_y              + block_size, dct_linesize, s->qscale);
diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h
index 073f480154..bb403c7de6 100644
--- a/libavcodec/mpegvideo.h
+++ b/libavcodec/mpegvideo.h
@@ -209,7 +209,6 @@ typedef struct MpegEncContext {
 
 /* the following codec id fields are deprecated in favor of codec_id */
     int h263_plus;    ///< h263 plus headers
-    int h263_msmpeg4; ///< generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead)
     int h263_flv;     ///< use flv h263 header
 
     enum CodecID codec_id;     /* see CODEC_ID_xxx */
@@ -843,4 +842,3 @@ void ff_wmv2_encode_mb(MpegEncContext * s,
                        int motion_x, int motion_y);
 
 #endif /* AVCODEC_MPEGVIDEO_H */
-
diff --git a/libavcodec/mpegvideo_enc.c b/libavcodec/mpegvideo_enc.c
index 0bc694ca3e..c5a58c2ecc 100644
--- a/libavcodec/mpegvideo_enc.c
+++ b/libavcodec/mpegvideo_enc.c
@@ -640,7 +640,6 @@ av_cold int MPV_encode_init(AVCodecContext *avctx)
         break;
     case CODEC_ID_MSMPEG4V2:
         s->out_format = FMT_H263;
-        s->h263_msmpeg4 = 1;
         s->h263_pred = 1;
         s->unrestricted_mv = 1;
         s->msmpeg4_version= 2;
@@ -649,7 +648,6 @@ av_cold int MPV_encode_init(AVCodecContext *avctx)
         break;
     case CODEC_ID_MSMPEG4V3:
         s->out_format = FMT_H263;
-        s->h263_msmpeg4 = 1;
         s->h263_pred = 1;
         s->unrestricted_mv = 1;
         s->msmpeg4_version= 3;
@@ -659,7 +657,6 @@ av_cold int MPV_encode_init(AVCodecContext *avctx)
         break;
     case CODEC_ID_WMV1:
         s->out_format = FMT_H263;
-        s->h263_msmpeg4 = 1;
         s->h263_pred = 1;
         s->unrestricted_mv = 1;
         s->msmpeg4_version= 4;
@@ -669,7 +666,6 @@ av_cold int MPV_encode_init(AVCodecContext *avctx)
         break;
     case CODEC_ID_WMV2:
         s->out_format = FMT_H263;
-        s->h263_msmpeg4 = 1;
         s->h263_pred = 1;
         s->unrestricted_mv = 1;
         s->msmpeg4_version= 5;
@@ -2773,7 +2769,7 @@ static int encode_picture(MpegEncContext *s, int picture_number)
 
     /* we need to initialize some time vars before we can encode b-frames */
     // RAL: Condition added for MPEG1VIDEO
-    if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->h263_msmpeg4))
+    if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->msmpeg4_version))
         set_frame_distances(s);
     if(CONFIG_MPEG4_ENCODER && s->codec_id == CODEC_ID_MPEG4)
         ff_set_mpeg4_time(s);
@@ -2942,7 +2938,7 @@ static int encode_picture(MpegEncContext *s, int picture_number)
     case FMT_H263:
         if (CONFIG_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2)
             ff_wmv2_encode_picture_header(s, picture_number);
-        else if (CONFIG_MSMPEG4_ENCODER && s->h263_msmpeg4)
+        else if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version)
             msmpeg4_encode_picture_header(s, picture_number);
         else if (CONFIG_MPEG4_ENCODER && s->h263_pred)
             mpeg4_encode_picture_header(s, picture_number);
diff --git a/libavdevice/alsa-audio-dec.c b/libavdevice/alsa-audio-dec.c
index 8ee0e52642..24abc7c187 100644
--- a/libavdevice/alsa-audio-dec.c
+++ b/libavdevice/alsa-audio-dec.c
@@ -47,6 +47,7 @@
 
 #include <alsa/asoundlib.h>
 #include "libavformat/avformat.h"
+#include "libavutil/opt.h"
 
 #include "alsa-audio.h"
 
@@ -56,21 +57,16 @@ static av_cold int audio_read_header(AVFormatContext *s1,
     AlsaData *s = s1->priv_data;
     AVStream *st;
     int ret;
-    unsigned int sample_rate;
     enum CodecID codec_id;
     snd_pcm_sw_params_t *sw_params;
 
-    if (ap->sample_rate <= 0) {
-        av_log(s1, AV_LOG_ERROR, "Bad sample rate %d\n", ap->sample_rate);
+#if FF_API_FORMAT_PARAMETERS
+    if (ap->sample_rate > 0)
+        s->sample_rate = ap->sample_rate;
 
-        return AVERROR(EIO);
-    }
-
-    if (ap->channels <= 0) {
-        av_log(s1, AV_LOG_ERROR, "Bad channels number %d\n", ap->channels);
-
-        return AVERROR(EIO);
-    }
+    if (ap->channels > 0)
+        s->channels = ap->channels;
+#endif
 
     st = av_new_stream(s1, 0);
     if (!st) {
@@ -78,10 +74,9 @@ static av_cold int audio_read_header(AVFormatContext *s1,
 
         return AVERROR(ENOMEM);
     }
-    sample_rate = ap->sample_rate;
     codec_id    = s1->audio_codec_id;
 
-    ret = ff_alsa_open(s1, SND_PCM_STREAM_CAPTURE, &sample_rate, ap->channels,
+    ret = ff_alsa_open(s1, SND_PCM_STREAM_CAPTURE, &s->sample_rate, s->channels,
         &codec_id);
     if (ret < 0) {
         return AVERROR(EIO);
@@ -113,8 +108,8 @@ static av_cold int audio_read_header(AVFormatContext *s1,
     /* take real parameters */
     st->codec->codec_type  = AVMEDIA_TYPE_AUDIO;
     st->codec->codec_id    = codec_id;
-    st->codec->sample_rate = sample_rate;
-    st->codec->channels    = ap->channels;
+    st->codec->sample_rate = s->sample_rate;
+    st->codec->channels    = s->channels;
     av_set_pts_info(st, 64, 1, 1000000);  /* 64 bits pts in us */
 
     return 0;
@@ -163,6 +158,19 @@ static int audio_read_packet(AVFormatContext *s1, AVPacket *pkt)
     return 0;
 }
 
+static const AVOption options[] = {
+    { "sample_rate", "", offsetof(AlsaData, sample_rate), FF_OPT_TYPE_INT, {.dbl = 48000}, 1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { "channels",    "", offsetof(AlsaData, channels),    FF_OPT_TYPE_INT, {.dbl = 2},     1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { NULL },
+};
+
+static const AVClass alsa_demuxer_class = {
+    .class_name     = "ALSA demuxer",
+    .item_name      = av_default_item_name,
+    .option         = options,
+    .version        = LIBAVUTIL_VERSION_INT,
+};
+
 AVInputFormat ff_alsa_demuxer = {
     "alsa",
     NULL_IF_CONFIG_SMALL("ALSA audio input"),
@@ -172,4 +180,5 @@ AVInputFormat ff_alsa_demuxer = {
     audio_read_packet,
     ff_alsa_close,
     .flags = AVFMT_NOFILE,
+    .priv_class = &alsa_demuxer_class,
 };
diff --git a/libavdevice/alsa-audio.h b/libavdevice/alsa-audio.h
index 8c7c516585..a7a000c18c 100644
--- a/libavdevice/alsa-audio.h
+++ b/libavdevice/alsa-audio.h
@@ -33,6 +33,7 @@
 #include <alsa/asoundlib.h>
 #include "config.h"
 #include "libavformat/avformat.h"
+#include "libavutil/log.h"
 
 /* XXX: we make the assumption that the soundcard accepts this format */
 /* XXX: find better solution with "preinit" method, needed also in
@@ -42,12 +43,15 @@
 typedef void (*ff_reorder_func)(const void *, void *, int);
 
 typedef struct {
+    AVClass *class;
     snd_pcm_t *h;
     int frame_size;  ///< preferred size for reads and writes
     int period_size; ///< bytes per sample * channels
     ff_reorder_func reorder_func;
     void *reorder_buf;
     int reorder_buf_size; ///< in frames
+    int sample_rate; ///< sample rate set by user
+    int channels;    ///< number of channels set by user
 } AlsaData;
 
 /**
diff --git a/libavdevice/bktr.c b/libavdevice/bktr.c
index 6378ce7873..0e57258f14 100644
--- a/libavdevice/bktr.c
+++ b/libavdevice/bktr.c
@@ -25,6 +25,8 @@
  */
 
 #include "libavformat/avformat.h"
+#include "libavutil/log.h"
+#include "libavutil/opt.h"
 #if HAVE_DEV_BKTR_IOCTL_METEOR_H && HAVE_DEV_BKTR_IOCTL_BT848_H
 # include <dev/bktr/ioctl_meteor.h>
 # include <dev/bktr/ioctl_bt848.h>
@@ -47,12 +49,14 @@
 #include <strings.h>
 
 typedef struct {
+    AVClass *class;
     int video_fd;
     int tuner_fd;
     int width, height;
     int frame_rate;
     int frame_rate_base;
     uint64_t per_frame;
+    int standard;
 } VideoData;
 
 
@@ -245,7 +249,6 @@ static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
     int width, height;
     int frame_rate;
     int frame_rate_base;
-    int format = -1;
 
     if (ap->width <= 0 || ap->height <= 0 || ap->time_base.den <= 0)
         return -1;
@@ -274,16 +277,18 @@ static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
     st->codec->time_base.den = frame_rate;
     st->codec->time_base.num = frame_rate_base;
 
+#if FF_API_FORMAT_PARAMETERS
     if (ap->standard) {
         if (!strcasecmp(ap->standard, "pal"))
-            format = PAL;
+            s->standard = PAL;
         else if (!strcasecmp(ap->standard, "secam"))
-            format = SECAM;
+            s->standard = SECAM;
         else if (!strcasecmp(ap->standard, "ntsc"))
-            format = NTSC;
+            s->standard = NTSC;
     }
+#endif
 
-    if (bktr_init(s1->filename, width, height, format,
+    if (bktr_init(s1->filename, width, height, s->standard,
             &(s->video_fd), &(s->tuner_fd), -1, 0.0) < 0)
         return AVERROR(EIO);
 
@@ -311,6 +316,24 @@ static int grab_read_close(AVFormatContext *s1)
     return 0;
 }
 
+static const AVOption options[] = {
+    { "standard", "", offsetof(VideoData, standard), FF_OPT_TYPE_INT, {.dbl = VIDEO_FORMAT}, PAL, NTSCJ, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "PAL",      "", 0, FF_OPT_TYPE_CONST, {.dbl = PAL},   0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "NTSC",     "", 0, FF_OPT_TYPE_CONST, {.dbl = NTSC},  0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "SECAM",    "", 0, FF_OPT_TYPE_CONST, {.dbl = SECAM}, 0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "PALN",     "", 0, FF_OPT_TYPE_CONST, {.dbl = PALN},  0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "PALM",     "", 0, FF_OPT_TYPE_CONST, {.dbl = PALM},  0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "NTSCJ",    "", 0, FF_OPT_TYPE_CONST, {.dbl = NTSCJ}, 0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { NULL },
+};
+
+static const AVClass bktr_class = {
+    .class_name = "BKTR grab interface",
+    .item_name  = av_default_item_name,
+    .option     = options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
 AVInputFormat ff_bktr_demuxer = {
     "bktr",
     NULL_IF_CONFIG_SMALL("video grab"),
@@ -320,4 +343,5 @@ AVInputFormat ff_bktr_demuxer = {
     grab_read_packet,
     grab_read_close,
     .flags = AVFMT_NOFILE,
+    .priv_class = &bktr_class,
 };
diff --git a/libavdevice/dv1394.c b/libavdevice/dv1394.c
index a9bc058dc9..7fa73bdf95 100644
--- a/libavdevice/dv1394.c
+++ b/libavdevice/dv1394.c
@@ -30,6 +30,8 @@
 #include <time.h>
 #include <strings.h>
 
+#include "libavutil/log.h"
+#include "libavutil/opt.h"
 #include "libavformat/avformat.h"
 
 #undef DV1394_DEBUG
@@ -38,6 +40,7 @@
 #include "dv1394.h"
 
 struct dv1394_data {
+    AVClass *class;
     int fd;
     int channel;
     int format;
@@ -90,15 +93,17 @@ static int dv1394_read_header(AVFormatContext * context, AVFormatParameters * ap
     if (!dv->dv_demux)
         goto failed;
 
-    if (ap->standard && !strcasecmp(ap->standard, "pal"))
-        dv->format = DV1394_PAL;
-    else
-        dv->format = DV1394_NTSC;
+#if FF_API_FORMAT_PARAMETERS
+    if (ap->standard) {
+       if (!strcasecmp(ap->standard, "pal"))
+           dv->format = DV1394_PAL;
+       else
+           dv->format = DV1394_NTSC;
+    }
 
     if (ap->channel)
         dv->channel = ap->channel;
-    else
-        dv->channel = DV1394_DEFAULT_CHANNEL;
+#endif
 
     /* Open and initialize DV1394 device */
     dv->fd = open(context->filename, O_RDONLY);
@@ -227,6 +232,21 @@ static int dv1394_close(AVFormatContext * context)
     return 0;
 }
 
+static const AVOption options[] = {
+    { "standard", "", offsetof(struct dv1394_data, format), FF_OPT_TYPE_INT, {.dbl = DV1394_NTSC}, DV1394_PAL, DV1394_NTSC, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "PAL",      "", 0, FF_OPT_TYPE_CONST, {.dbl = DV1394_PAL},   0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "NTSC",     "", 0, FF_OPT_TYPE_CONST, {.dbl = DV1394_NTSC},  0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "channel",  "", offsetof(struct dv1394_data, channel), FF_OPT_TYPE_INT, {.dbl = DV1394_DEFAULT_CHANNEL}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { NULL },
+};
+
+static const AVClass dv1394_class = {
+    .class_name = "DV1394 indev",
+    .item_name  = av_default_item_name,
+    .option     = options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
 AVInputFormat ff_dv1394_demuxer = {
     .name           = "dv1394",
     .long_name      = NULL_IF_CONFIG_SMALL("DV1394 A/V grab"),
@@ -234,5 +254,6 @@ AVInputFormat ff_dv1394_demuxer = {
     .read_header    = dv1394_read_header,
     .read_packet    = dv1394_read_packet,
     .read_close     = dv1394_close,
-    .flags          = AVFMT_NOFILE
+    .flags          = AVFMT_NOFILE,
+    .priv_class     = &dv1394_class,
 };
diff --git a/libavdevice/libdc1394.c b/libavdevice/libdc1394.c
index abd82dc981..838f01993a 100644
--- a/libavdevice/libdc1394.c
+++ b/libavdevice/libdc1394.c
@@ -22,6 +22,8 @@
 
 #include "config.h"
 #include "libavformat/avformat.h"
+#include "libavutil/log.h"
+#include "libavutil/opt.h"
 
 #if HAVE_LIBDC1394_2
 #include <dc1394/dc1394.h>
@@ -45,9 +47,11 @@
 #undef free
 
 typedef struct dc1394_data {
+    AVClass *class;
 #if HAVE_LIBDC1394_1
     raw1394handle_t handle;
     dc1394_cameracapture camera;
+    int channel;
 #elif HAVE_LIBDC1394_2
     dc1394_t *d;
     dc1394camera_t *camera;
@@ -155,6 +159,11 @@ static int dc1394_v1_read_header(AVFormatContext *c, AVFormatParameters * ap)
     if (dc1394_read_common(c,ap,&fmt,&fps) != 0)
         return -1;
 
+#if FF_API_FORMAT_PARAMETERS
+    if (ap->channel)
+        dc1394->channel = ap->channel;
+#endif
+
     /* Now let us prep the hardware. */
     dc1394->handle = dc1394_create_handle(0); /* FIXME: gotta have ap->port */
     if (!dc1394->handle) {
@@ -162,11 +171,11 @@ static int dc1394_v1_read_header(AVFormatContext *c, AVFormatParameters * ap)
         goto out;
     }
     camera_nodes = dc1394_get_camera_nodes(dc1394->handle, &res, 1);
-    if (!camera_nodes || camera_nodes[ap->channel] == DC1394_NO_CAMERA) {
-        av_log(c, AV_LOG_ERROR, "There's no IIDC camera on the channel %d\n", ap->channel);
+    if (!camera_nodes || camera_nodes[dc1394->channel] == DC1394_NO_CAMERA) {
+        av_log(c, AV_LOG_ERROR, "There's no IIDC camera on the channel %d\n", dc1394->channel);
         goto out_handle;
     }
-    res = dc1394_dma_setup_capture(dc1394->handle, camera_nodes[ap->channel],
+    res = dc1394_dma_setup_capture(dc1394->handle, camera_nodes[dc1394->channel],
                                    0,
                                    FORMAT_VGA_NONCOMPRESSED,
                                    fmt->frame_size_id,
@@ -236,6 +245,20 @@ static int dc1394_v1_close(AVFormatContext * context)
     return 0;
 }
 
+static const AVOption options[] = {
+#if HAVE_LIBDC1394_1
+    { "channel", "", offsetof(dc1394_data, channel), FF_OPT_TYPE_INT, {.dbl = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+#endif
+    { NULL },
+};
+
+static const AVClass libdc1394_class = {
+    .class_name = "libdc1394 indev",
+    .item_name  = av_default_item_name,
+    .option     = options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
 #elif HAVE_LIBDC1394_2
 static int dc1394_v2_read_header(AVFormatContext *c, AVFormatParameters * ap)
 {
@@ -356,6 +379,7 @@ AVInputFormat ff_libdc1394_demuxer = {
     .read_packet    = dc1394_v2_read_packet,
     .read_close     = dc1394_v2_close,
     .flags          = AVFMT_NOFILE
+    .priv_class     = &libdc1394_class,
 };
 
 #endif
@@ -367,6 +391,7 @@ AVInputFormat ff_libdc1394_demuxer = {
     .read_header    = dc1394_v1_read_header,
     .read_packet    = dc1394_v1_read_packet,
     .read_close     = dc1394_v1_close,
-    .flags          = AVFMT_NOFILE
+    .flags          = AVFMT_NOFILE,
+    .priv_class     = &libdc1394_class,
 };
 #endif
diff --git a/libavdevice/oss_audio.c b/libavdevice/oss_audio.c
index fc5d3c3dd1..66c303272e 100644
--- a/libavdevice/oss_audio.c
+++ b/libavdevice/oss_audio.c
@@ -37,12 +37,14 @@
 #include <sys/select.h>
 
 #include "libavutil/log.h"
+#include "libavutil/opt.h"
 #include "libavcodec/avcodec.h"
 #include "libavformat/avformat.h"
 
 #define AUDIO_BLOCK_SIZE 4096
 
 typedef struct {
+    AVClass *class;
     int fd;
     int sample_rate;
     int channels;
@@ -214,15 +216,17 @@ static int audio_read_header(AVFormatContext *s1, AVFormatParameters *ap)
     AVStream *st;
     int ret;
 
-    if (ap->sample_rate <= 0 || ap->channels <= 0)
-        return -1;
+#if FF_API_FORMAT_PARAMETERS
+    if (ap->sample_rate > 0)
+        s->sample_rate = ap->sample_rate;
+    if (ap->channels > 0)
+        s->channels = ap->channels;
+#endif
 
     st = av_new_stream(s1, 0);
     if (!st) {
         return AVERROR(ENOMEM);
     }
-    s->sample_rate = ap->sample_rate;
-    s->channels = ap->channels;
 
     ret = audio_open(s1, 0, s1->filename);
     if (ret < 0) {
@@ -291,6 +295,19 @@ static int audio_read_close(AVFormatContext *s1)
 }
 
 #if CONFIG_OSS_INDEV
+static const AVOption options[] = {
+    { "sample_rate", "", offsetof(AudioData, sample_rate), FF_OPT_TYPE_INT, {.dbl = 48000}, 1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { "channels",    "", offsetof(AudioData, channels),    FF_OPT_TYPE_INT, {.dbl = 2},     1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { NULL },
+};
+
+static const AVClass oss_demuxer_class = {
+    .class_name     = "OSS demuxer",
+    .item_name      = av_default_item_name,
+    .option         = options,
+    .version        = LIBAVUTIL_VERSION_INT,
+};
+
 AVInputFormat ff_oss_demuxer = {
     "oss",
     NULL_IF_CONFIG_SMALL("Open Sound System capture"),
@@ -300,6 +317,7 @@ AVInputFormat ff_oss_demuxer = {
     audio_read_packet,
     audio_read_close,
     .flags = AVFMT_NOFILE,
+    .priv_class = &oss_demuxer_class,
 };
 #endif
 
diff --git a/libavdevice/sndio_common.h b/libavdevice/sndio_common.h
index 485bf93240..1d0039564e 100644
--- a/libavdevice/sndio_common.h
+++ b/libavdevice/sndio_common.h
@@ -26,8 +26,10 @@
 #include <sndio.h>
 
 #include "libavformat/avformat.h"
+#include "libavutil/log.h"
 
 typedef struct {
+    AVClass *class;
     struct sio_hdl *hdl;
     enum CodecID codec_id;
     int64_t hwpos;
diff --git a/libavdevice/sndio_dec.c b/libavdevice/sndio_dec.c
index 9582b5490e..3014fd2787 100644
--- a/libavdevice/sndio_dec.c
+++ b/libavdevice/sndio_dec.c
@@ -23,6 +23,7 @@
 #include <sndio.h>
 
 #include "libavformat/avformat.h"
+#include "libavutil/opt.h"
 
 #include "sndio_common.h"
 
@@ -33,16 +34,17 @@ static av_cold int audio_read_header(AVFormatContext *s1,
     AVStream *st;
     int ret;
 
-    if (ap->sample_rate <= 0 || ap->channels <= 0)
-        return AVERROR(EINVAL);
+#if FF_API_FORMAT_PARAMETERS
+    if (ap->sample_rate > 0)
+        s->sample_rate = ap->sample_rate;
+    if (ap->channels > 0)
+        s->channels = ap->channels;
+#endif
 
     st = av_new_stream(s1, 0);
     if (!st)
         return AVERROR(ENOMEM);
 
-    s->sample_rate = ap->sample_rate;
-    s->channels    = ap->channels;
-
     ret = ff_sndio_open(s1, 0, s1->filename);
     if (ret < 0)
         return ret;
@@ -97,6 +99,19 @@ static av_cold int audio_read_close(AVFormatContext *s1)
     return 0;
 }
 
+static const AVOption options[] = {
+    { "sample_rate", "", offsetof(SndioData, sample_rate), FF_OPT_TYPE_INT, {.dbl = 48000}, 1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { "channels",    "", offsetof(SndioData, channels),    FF_OPT_TYPE_INT, {.dbl = 2},     1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { NULL },
+};
+
+static const AVClass sndio_demuxer_class = {
+    .class_name     = "sndio indev",
+    .item_name      = av_default_item_name,
+    .option         = options,
+    .version        = LIBAVUTIL_VERSION_INT,
+};
+
 AVInputFormat ff_sndio_demuxer = {
     .name           = "sndio",
     .long_name      = NULL_IF_CONFIG_SMALL("sndio audio capture"),
@@ -105,4 +120,5 @@ AVInputFormat ff_sndio_demuxer = {
     .read_packet    = audio_read_packet,
     .read_close     = audio_read_close,
     .flags          = AVFMT_NOFILE,
+    .priv_class     = &sndio_demuxer_class,
 };
diff --git a/libavdevice/v4l.c b/libavdevice/v4l.c
index 9a155f9df6..a49ca8005f 100644
--- a/libavdevice/v4l.c
+++ b/libavdevice/v4l.c
@@ -23,6 +23,8 @@
 #include "config.h"
 #include "libavutil/rational.h"
 #include "libavutil/imgutils.h"
+#include "libavutil/log.h"
+#include "libavutil/opt.h"
 #include "libavformat/avformat.h"
 #include "libavcodec/dsputil.h"
 #include <unistd.h>
@@ -36,6 +38,7 @@
 #include <strings.h>
 
 typedef struct {
+    AVClass *class;
     int fd;
     int frame_format; /* see VIDEO_PALETTE_xxx */
     int use_mmap;
@@ -49,6 +52,7 @@ typedef struct {
     struct video_mbuf gb_buffers;
     struct video_mmap gb_buf;
     int gb_frame;
+    int standard;
 } VideoData;
 
 static const struct {
@@ -131,13 +135,18 @@ static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
     }
 
     /* set tv standard */
-    if (ap->standard && !ioctl(video_fd, VIDIOCGTUNER, &tuner)) {
-        if (!strcasecmp(ap->standard, "pal"))
-            tuner.mode = VIDEO_MODE_PAL;
-        else if (!strcasecmp(ap->standard, "secam"))
-            tuner.mode = VIDEO_MODE_SECAM;
-        else
-            tuner.mode = VIDEO_MODE_NTSC;
+    if (!ioctl(video_fd, VIDIOCGTUNER, &tuner)) {
+#if FF_API_FORMAT_PARAMETERS
+        if (ap->standard) {
+            if (!strcasecmp(ap->standard, "pal"))
+                s->standard = VIDEO_MODE_PAL;
+            else if (!strcasecmp(ap->standard, "secam"))
+                s->standard = VIDEO_MODE_SECAM;
+            else
+                s->standard = VIDEO_MODE_NTSC;
+        }
+#endif
+        tuner.mode = s->standard;
         ioctl(video_fd, VIDIOCSTUNER, &tuner);
     }
 
@@ -339,6 +348,21 @@ static int grab_read_close(AVFormatContext *s1)
     return 0;
 }
 
+static const AVOption options[] = {
+    { "standard", "", offsetof(VideoData, standard), FF_OPT_TYPE_INT, {.dbl = VIDEO_MODE_NTSC}, VIDEO_MODE_PAL, VIDEO_MODE_NTSC, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "PAL",   "", 0, FF_OPT_TYPE_CONST, {.dbl = VIDEO_MODE_PAL},   0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "SECAM", "", 0, FF_OPT_TYPE_CONST, {.dbl = VIDEO_MODE_SECAM}, 0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "NTSC",  "", 0, FF_OPT_TYPE_CONST, {.dbl = VIDEO_MODE_NTSC},  0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { NULL },
+};
+
+static const AVClass v4l_class = {
+    .class_name = "V4L indev",
+    .item_name  = av_default_item_name,
+    .option     = options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
 AVInputFormat ff_v4l_demuxer = {
     "video4linux",
     NULL_IF_CONFIG_SMALL("Video4Linux device grab"),
@@ -348,4 +372,5 @@ AVInputFormat ff_v4l_demuxer = {
     grab_read_packet,
     grab_read_close,
     .flags = AVFMT_NOFILE,
+    .priv_class = &v4l_class,
 };
diff --git a/libavdevice/v4l2.c b/libavdevice/v4l2.c
index 1f1a4bcfb8..a0fc99242e 100644
--- a/libavdevice/v4l2.c
+++ b/libavdevice/v4l2.c
@@ -44,6 +44,8 @@
 #include <time.h>
 #include <strings.h>
 #include "libavutil/imgutils.h"
+#include "libavutil/log.h"
+#include "libavutil/opt.h"
 
 static const int desired_video_buffers = 256;
 
@@ -54,6 +56,7 @@ enum io_method {
 };
 
 struct video_data {
+    AVClass *class;
     int fd;
     int frame_format; /* V4L2_PIX_FMT_* */
     enum io_method io_method;
@@ -64,6 +67,8 @@ struct video_data {
     int buffers;
     void **buf_start;
     unsigned int *buf_len;
+    char *standard;
+    int channel;
 };
 
 struct buff_data {
@@ -448,50 +453,61 @@ static int v4l2_set_parameters(AVFormatContext *s1, AVFormatParameters *ap)
 
     streamparm.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 
-    if (ap->channel>=0) {
-        /* set tv video input */
-        memset (&input, 0, sizeof (input));
-        input.index = ap->channel;
-        if (ioctl(s->fd, VIDIOC_ENUMINPUT, &input) < 0) {
-            av_log(s1, AV_LOG_ERROR, "The V4L2 driver ioctl enum input failed:\n");
-            return AVERROR(EIO);
-        }
+#if FF_API_FORMAT_PARAMETERS
+    if (ap->channel > 0)
+        s->channel = ap->channel;
+#endif
 
-        av_log(s1, AV_LOG_DEBUG, "The V4L2 driver set input_id: %d, input: %s\n",
-               ap->channel, input.name);
-        if (ioctl(s->fd, VIDIOC_S_INPUT, &input.index) < 0) {
-            av_log(s1, AV_LOG_ERROR, "The V4L2 driver ioctl set input(%d) failed\n",
-                   ap->channel);
-            return AVERROR(EIO);
-        }
+    /* set tv video input */
+    memset (&input, 0, sizeof (input));
+    input.index = s->channel;
+    if (ioctl(s->fd, VIDIOC_ENUMINPUT, &input) < 0) {
+        av_log(s1, AV_LOG_ERROR, "The V4L2 driver ioctl enum input failed:\n");
+        return AVERROR(EIO);
+    }
+
+    av_log(s1, AV_LOG_DEBUG, "The V4L2 driver set input_id: %d, input: %s\n",
+            s->channel, input.name);
+    if (ioctl(s->fd, VIDIOC_S_INPUT, &input.index) < 0) {
+        av_log(s1, AV_LOG_ERROR, "The V4L2 driver ioctl set input(%d) failed\n",
+                s->channel);
+        return AVERROR(EIO);
     }
 
+#if FF_API_FORMAT_PARAMETERS
     if (ap->standard) {
+        av_freep(&s->standard);
+        s->standard = av_strdup(ap->standard);
+    }
+#endif
+
+    if (s->standard) {
         av_log(s1, AV_LOG_DEBUG, "The V4L2 driver set standard: %s\n",
-               ap->standard);
+               s->standard);
         /* set tv standard */
         memset (&standard, 0, sizeof (standard));
         for(i=0;;i++) {
             standard.index = i;
             if (ioctl(s->fd, VIDIOC_ENUMSTD, &standard) < 0) {
                 av_log(s1, AV_LOG_ERROR, "The V4L2 driver ioctl set standard(%s) failed\n",
-                       ap->standard);
+                       s->standard);
                 return AVERROR(EIO);
             }
 
-            if (!strcasecmp(standard.name, ap->standard)) {
+            if (!strcasecmp(standard.name, s->standard)) {
                 break;
             }
         }
 
         av_log(s1, AV_LOG_DEBUG, "The V4L2 driver set standard: %s, id: %"PRIu64"\n",
-               ap->standard, (uint64_t)standard.id);
+               s->standard, (uint64_t)standard.id);
         if (ioctl(s->fd, VIDIOC_S_STD, &standard.id) < 0) {
             av_log(s1, AV_LOG_ERROR, "The V4L2 driver ioctl set standard(%s) failed\n",
-                   ap->standard);
+                   s->standard);
             return AVERROR(EIO);
         }
     }
+    av_freep(&s->standard);
 
     if (ap->time_base.num && ap->time_base.den) {
         av_log(s1, AV_LOG_DEBUG, "Setting time per frame to %d/%d\n",
@@ -680,6 +696,19 @@ static int v4l2_read_close(AVFormatContext *s1)
     return 0;
 }
 
+static const AVOption options[] = {
+    { "standard", "", offsetof(struct video_data, standard), FF_OPT_TYPE_STRING, {.str = "NTSC" }, 0, 0, AV_OPT_FLAG_DECODING_PARAM },
+    { "channel",  "", offsetof(struct video_data, channel),  FF_OPT_TYPE_INT,    {.dbl = 0 }, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { NULL },
+};
+
+static const AVClass v4l2_class = {
+    .class_name = "V4L2 indev",
+    .item_name  = av_default_item_name,
+    .option     = options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
 AVInputFormat ff_v4l2_demuxer = {
     "video4linux2",
     NULL_IF_CONFIG_SMALL("Video4Linux2 device grab"),
@@ -689,4 +718,5 @@ AVInputFormat ff_v4l2_demuxer = {
     v4l2_read_packet,
     v4l2_read_close,
     .flags = AVFMT_NOFILE,
+    .priv_class = &v4l2_class,
 };
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index fc74444e92..1607a3092b 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -228,17 +228,20 @@ typedef struct AVProbeData {
 
 typedef struct AVFormatParameters {
     AVRational time_base;
-    int sample_rate;
-    int channels;
+#if FF_API_FORMAT_PARAMETERS
+    attribute_deprecated int sample_rate;
+    attribute_deprecated int channels;
+#endif
     int width;
     int height;
     enum PixelFormat pix_fmt;
-    int channel; /**< Used to select DV channel. */
-    const char *standard; /**< TV standard, NTSC, PAL, SECAM */
-    unsigned int mpeg2ts_raw:1;  /**< Force raw MPEG-2 transport stream output, if possible. */
-    unsigned int mpeg2ts_compute_pcr:1; /**< Compute exact PCR for each transport
-                                            stream packet (only meaningful if
-                                            mpeg2ts_raw is TRUE). */
+#if FF_API_FORMAT_PARAMETERS
+    attribute_deprecated int channel; /**< Used to select DV channel. */
+    attribute_deprecated const char *standard; /**< deprecated, use demuxer-specific options instead. */
+    attribute_deprecated unsigned int mpeg2ts_raw:1;  /**< deprecated, use mpegtsraw demuxer */
+    /**< deprecated, use mpegtsraw demuxer-specific options instead */
+    attribute_deprecated unsigned int mpeg2ts_compute_pcr:1;
+#endif
     unsigned int initial_pause:1;       /**< Do not begin to play the stream
                                             immediately (RTSP only). */
     unsigned int prealloced_context:1;
@@ -824,6 +827,11 @@ typedef struct AVFormatContext {
      * - decoding: Unused.
      */
     int64_t start_time_realtime;
+
+    /**
+     * decoding: number of frames used to probe fps
+     */
+    int fps_probe_size;
 } AVFormatContext;
 
 typedef struct AVPacketList {
diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index f59b7c2ed2..ea11a3eaf8 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -25,6 +25,8 @@
 
 #include "libavutil/crc.h"
 #include "libavutil/intreadwrite.h"
+#include "libavutil/log.h"
+#include "libavutil/opt.h"
 #include "libavcodec/bytestream.h"
 #include "avformat.h"
 #include "mpegts.h"
@@ -86,6 +88,7 @@ struct Program {
 };
 
 struct MpegTSContext {
+    const AVClass *class;
     /* user data */
     AVFormatContext *stream;
     /** raw packet size, including FEC if present            */
@@ -122,6 +125,19 @@ struct MpegTSContext {
     MpegTSFilter *pids[NB_PID_MAX];
 };
 
+static const AVOption options[] = {
+    {"compute_pcr", "Compute exact PCR for each transport stream packet.", offsetof(MpegTSContext, mpeg2ts_compute_pcr), FF_OPT_TYPE_INT,
+     {.dbl = 0}, 0, 1, AV_OPT_FLAG_DECODING_PARAM },
+    { NULL },
+};
+
+static const AVClass mpegtsraw_class = {
+    .class_name = "mpegtsraw demuxer",
+    .item_name  = av_default_item_name,
+    .option     = options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
 /* TS stream handling */
 
 enum MpegTSState {
@@ -1455,13 +1471,16 @@ static int mpegts_read_header(AVFormatContext *s,
     int len;
     int64_t pos;
 
+#if FF_API_FORMAT_PARAMETERS
     if (ap) {
-        ts->mpeg2ts_compute_pcr = ap->mpeg2ts_compute_pcr;
+        if (ap->mpeg2ts_compute_pcr)
+            ts->mpeg2ts_compute_pcr = ap->mpeg2ts_compute_pcr;
         if(ap->mpeg2ts_raw){
             av_log(s, AV_LOG_ERROR, "use mpegtsraw_demuxer!\n");
             return -1;
         }
     }
+#endif
 
     /* read the first 1024 bytes to get packet size */
     pos = avio_tell(pb);
@@ -1883,4 +1902,5 @@ AVInputFormat ff_mpegtsraw_demuxer = {
 #ifdef USE_SYNCPOINT_SEARCH
     .read_seek2 = read_seek2,
 #endif
+    .priv_class = &mpegtsraw_class,
 };
diff --git a/libavformat/options.c b/libavformat/options.c
index 5e0e3a428d..6281b7fbcd 100644
--- a/libavformat/options.c
+++ b/libavformat/options.c
@@ -60,6 +60,7 @@ static const AVOption options[]={
 {"fdebug", "print specific debug info", OFFSET(debug), FF_OPT_TYPE_FLAGS, {.dbl = DEFAULT }, 0, INT_MAX, E|D, "fdebug"},
 {"ts", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = FF_FDEBUG_TS }, INT_MIN, INT_MAX, E|D, "fdebug"},
 {"max_delay", "maximum muxing or demuxing delay in microseconds", OFFSET(max_delay), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, INT_MAX, E|D},
+{"fpsprobesize", "number of frames used to probe fps", OFFSET(fps_probe_size), FF_OPT_TYPE_INT, -1, -1, INT_MAX-1, D},
 {NULL},
 };
 
diff --git a/libavformat/pcmdec.c b/libavformat/pcmdec.c
index 6441d89c5c..ab3b739ccb 100644
--- a/libavformat/pcmdec.c
+++ b/libavformat/pcmdec.c
@@ -50,7 +50,7 @@ static int raw_read_packet(AVFormatContext *s, AVPacket *pkt)
 AVInputFormat ff_pcm_ ## name ## _demuxer = {\
     #name,\
     NULL_IF_CONFIG_SMALL(long_name),\
-    0,\
+    sizeof(RawAudioDemuxerContext),\
     NULL,\
     ff_raw_read_header,\
     raw_read_packet,\
@@ -59,6 +59,7 @@ AVInputFormat ff_pcm_ ## name ## _demuxer = {\
     .flags= AVFMT_GENERIC_INDEX,\
     .extensions = ext,\
     .value = codec,\
+    .priv_class = &ff_rawaudio_demuxer_class,\
 };
 
 PCMDEF(f64be, "PCM 64 bit floating-point big-endian format",
diff --git a/libavformat/rawdec.c b/libavformat/rawdec.c
index 0387e3d266..daacae0c24 100644
--- a/libavformat/rawdec.c
+++ b/libavformat/rawdec.c
@@ -23,6 +23,7 @@
 #include "avformat.h"
 #include "avio_internal.h"
 #include "rawdec.h"
+#include "libavutil/opt.h"
 
 /* raw input */
 int ff_raw_read_header(AVFormatContext *s, AVFormatParameters *ap)
@@ -43,15 +44,28 @@ int ff_raw_read_header(AVFormatContext *s, AVFormatParameters *ap)
         st->codec->codec_id = id;
 
         switch(st->codec->codec_type) {
-        case AVMEDIA_TYPE_AUDIO:
-            st->codec->sample_rate = ap->sample_rate;
-            if(ap->channels) st->codec->channels = ap->channels;
-            else             st->codec->channels = 1;
+        case AVMEDIA_TYPE_AUDIO: {
+            RawAudioDemuxerContext *s1 = s->priv_data;
+
+#if FF_API_FORMAT_PARAMETERS
+            if (ap->sample_rate)
+                st->codec->sample_rate = ap->sample_rate;
+            if (ap->channels)
+                st->codec->channels    = ap->channels;
+            else st->codec->channels   = 1;
+#endif
+
+            if (s1->sample_rate)
+                st->codec->sample_rate = s1->sample_rate;
+            if (s1->channels)
+                st->codec->channels    = s1->channels;
+
             st->codec->bits_per_coded_sample = av_get_bits_per_sample(st->codec->codec_id);
             assert(st->codec->bits_per_coded_sample > 0);
             st->codec->block_align = st->codec->bits_per_coded_sample*st->codec->channels/8;
             av_set_pts_info(st, 64, 1, st->codec->sample_rate);
             break;
+            }
         case AVMEDIA_TYPE_VIDEO:
             if(ap->time_base.num)
                 av_set_pts_info(st, 64, ap->time_base.num, ap->time_base.den);
@@ -139,17 +153,31 @@ int ff_raw_video_read_header(AVFormatContext *s,
 
 /* Note: Do not forget to add new entries to the Makefile as well. */
 
+static const AVOption audio_options[] = {
+    { "sample_rate", "", offsetof(RawAudioDemuxerContext, sample_rate), FF_OPT_TYPE_INT, {.dbl = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { "channels",    "", offsetof(RawAudioDemuxerContext, channels),    FF_OPT_TYPE_INT, {.dbl = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { NULL },
+};
+
+const AVClass ff_rawaudio_demuxer_class = {
+    .class_name     = "rawaudio demuxer",
+    .item_name      = av_default_item_name,
+    .option         = audio_options,
+    .version        = LIBAVUTIL_VERSION_INT,
+};
+
 #if CONFIG_G722_DEMUXER
 AVInputFormat ff_g722_demuxer = {
     "g722",
     NULL_IF_CONFIG_SMALL("raw G.722"),
-    0,
+    sizeof(RawAudioDemuxerContext),
     NULL,
     ff_raw_read_header,
     ff_raw_read_partial_packet,
     .flags= AVFMT_GENERIC_INDEX,
     .extensions = "g722,722",
     .value = CODEC_ID_ADPCM_G722,
+    .priv_class = &ff_rawaudio_demuxer_class,
 };
 #endif
 
diff --git a/libavformat/rawdec.h b/libavformat/rawdec.h
index 0b0cf1beef..a989ea9ce6 100644
--- a/libavformat/rawdec.h
+++ b/libavformat/rawdec.h
@@ -23,6 +23,15 @@
 #define AVFORMAT_RAWDEC_H
 
 #include "avformat.h"
+#include "libavutil/log.h"
+
+typedef struct RawAudioDemuxerContext {
+    AVClass *class;
+    int sample_rate;
+    int channels;
+} RawAudioDemuxerContext;
+
+extern const AVClass ff_rawaudio_demuxer_class;
 
 int ff_raw_read_header(AVFormatContext *s, AVFormatParameters *ap);
 
diff --git a/libavformat/rtmppkt.c b/libavformat/rtmppkt.c
index 53c6a5fe19..4b6d549f74 100644
--- a/libavformat/rtmppkt.c
+++ b/libavformat/rtmppkt.c
@@ -233,9 +233,11 @@ int ff_rtmp_packet_write(URLContext *h, RTMPPacket *pkt,
 int ff_rtmp_packet_create(RTMPPacket *pkt, int channel_id, RTMPPacketType type,
                           int timestamp, int size)
 {
-    pkt->data = av_malloc(size);
-    if (!pkt->data)
-        return AVERROR(ENOMEM);
+    if (size) {
+        pkt->data = av_malloc(size);
+        if (!pkt->data)
+            return AVERROR(ENOMEM);
+    }
     pkt->data_size  = size;
     pkt->channel_id = channel_id;
     pkt->type       = type;
diff --git a/libavformat/rtmpproto.c b/libavformat/rtmpproto.c
index b10cfb6ca7..b8714c9ffa 100644
--- a/libavformat/rtmpproto.c
+++ b/libavformat/rtmpproto.c
@@ -683,7 +683,7 @@ static int get_packet(URLContext *s, int for_header)
         return AVERROR_EOF;
 
     for (;;) {
-        RTMPPacket rpkt;
+        RTMPPacket rpkt = { 0 };
         if ((ret = ff_rtmp_packet_read(rt->stream, &rpkt,
                                        rt->chunk_size, rt->prev_pkt[0])) <= 0) {
             if (ret == 0) {
diff --git a/libavformat/tty.c b/libavformat/tty.c
index b288d15393..171099d3cb 100644
--- a/libavformat/tty.c
+++ b/libavformat/tty.c
@@ -26,12 +26,13 @@
 
 #include "libavutil/intreadwrite.h"
 #include "libavutil/avstring.h"
+#include "libavutil/log.h"
+#include "libavutil/opt.h"
 #include "avformat.h"
 #include "sauce.h"
 
-#define LINE_RATE 6000 /* characters per second */
-
 typedef struct {
+    AVClass *class;
     int chars_per_frame;
     uint64_t fsize;  /**< file size less metadata buffer */
 } TtyDemuxContext;
@@ -86,7 +87,11 @@ static int read_header(AVFormatContext *avctx,
     }
 
     /* simulate tty display speed */
-    s->chars_per_frame = FFMAX(av_q2d(st->time_base) * (ap->sample_rate ? ap->sample_rate : LINE_RATE), 1);
+#if FF_API_FORMAT_PARAMETERS
+    if (ap->sample_rate)
+        s->chars_per_frame = ap->sample_rate;
+#endif
+    s->chars_per_frame = FFMAX(av_q2d(st->time_base)*s->chars_per_frame, 1);
 
     if (avctx->pb->seekable) {
         s->fsize = avio_size(avctx->pb);
@@ -124,6 +129,18 @@ static int read_packet(AVFormatContext *avctx, AVPacket *pkt)
     return 0;
 }
 
+static const AVOption options[] = {
+    { "chars_per_frame", "", offsetof(TtyDemuxContext, chars_per_frame), FF_OPT_TYPE_INT, {.dbl = 6000}, 1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM},
+    { NULL },
+};
+
+static const AVClass tty_demuxer_class = {
+    .class_name     = "TTY demuxer",
+    .item_name      = av_default_item_name,
+    .option         = options,
+    .version        = LIBAVUTIL_VERSION_INT,
+};
+
 AVInputFormat ff_tty_demuxer = {
     .name           = "tty",
     .long_name      = NULL_IF_CONFIG_SMALL("Tele-typewriter"),
@@ -131,4 +148,5 @@ AVInputFormat ff_tty_demuxer = {
     .read_header    = read_header,
     .read_packet    = read_packet,
     .extensions     = "ans,art,asc,diz,ice,nfo,txt,vt",
+    .priv_class     = &tty_demuxer_class,
 };
diff --git a/libavformat/utils.c b/libavformat/utils.c
index 20b21f29db..3c9a89dc64 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -2272,6 +2272,8 @@ int av_find_stream_info(AVFormatContext *ic)
                the correct fps */
             if (av_q2d(st->time_base) > 0.0005)
                 fps_analyze_framecount *= 2;
+            if (ic->fps_probe_size >= 0)
+                fps_analyze_framecount = ic->fps_probe_size;
             /* variable fps and no guess at the real fps */
             if(   tb_unreliable(st->codec) && !(st->r_frame_rate.num && st->avg_frame_rate.num)
                && st->info->duration_count < fps_analyze_framecount
diff --git a/libavformat/version.h b/libavformat/version.h
index 76b86ed323..fe8e85dadf 100644
--- a/libavformat/version.h
+++ b/libavformat/version.h
@@ -71,5 +71,8 @@
 #ifndef FF_API_ALLOC_OUTPUT_CONTEXT
 #define FF_API_ALLOC_OUTPUT_CONTEXT    (LIBAVFORMAT_VERSION_MAJOR < 54)
 #endif
+#ifndef FF_API_FORMAT_PARAMETERS
+#define FF_API_FORMAT_PARAMETERS       (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
 
 #endif /* AVFORMAT_VERSION_H */
diff --git a/libavutil/opt.c b/libavutil/opt.c
index c38004fdd2..1d465e7b60 100644
--- a/libavutil/opt.c
+++ b/libavutil/opt.c
@@ -290,7 +290,8 @@ double av_get_double(void *obj, const char *name, const AVOption **o_out)
     double num=1;
     int den=1;
 
-    av_get_number(obj, name, o_out, &num, &den, &intnum);
+    if (av_get_number(obj, name, o_out, &num, &den, &intnum) < 0)
+        return NAN;
     return num*intnum/den;
 }
 
@@ -300,7 +301,8 @@ AVRational av_get_q(void *obj, const char *name, const AVOption **o_out)
     double num=1;
     int den=1;
 
-    av_get_number(obj, name, o_out, &num, &den, &intnum);
+    if (av_get_number(obj, name, o_out, &num, &den, &intnum) < 0)
+        return (AVRational){0, 0};
     if (num == 1.0 && (int)intnum == intnum)
         return (AVRational){intnum, den};
     else
diff --git a/libswscale/rgb2rgb.h b/libswscale/rgb2rgb.h
index e31d9cc9e9..f1c0e00533 100644
--- a/libswscale/rgb2rgb.h
+++ b/libswscale/rgb2rgb.h
@@ -68,13 +68,6 @@ void shuffle_bytes_1230(const uint8_t *src, uint8_t *dst, long src_size);
 void shuffle_bytes_3012(const uint8_t *src, uint8_t *dst, long src_size);
 void shuffle_bytes_3210(const uint8_t *src, uint8_t *dst, long src_size);
 
-void rgb24toyv12_c(const uint8_t *src, uint8_t *ydst,
-                   uint8_t *udst, uint8_t *vdst,
-                   long width, long height,
-                   long lumStride, long chromStride,
-                   long srcStride);
-
-
 #if LIBSWSCALE_VERSION_MAJOR < 1
 /* deprecated, use the public versions in swscale.h */
 attribute_deprecated void palette8topacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette);
@@ -85,13 +78,10 @@ attribute_deprecated void palette8torgb16(const uint8_t *src, uint8_t *dst, long
 attribute_deprecated void palette8tobgr16(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette);
 #endif
 
-/**
- * Height should be a multiple of 2 and width should be a multiple of 16.
- * (If this is a problem for anyone then tell me, and I will fix it.)
- * Chrominance data is only taken from every second line, others are ignored.
- * FIXME: Write high quality version.
- */
-//void uyvytoyv12(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
+
+void rgb24toyv12_c(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
+                   uint8_t *vdst, long width, long height, long lumStride,
+                   long chromStride, long srcStride);
 
 /**
  * Height should be a multiple of 2 and width should be a multiple of 16.
diff --git a/libswscale/rgb2rgb_template.c b/libswscale/rgb2rgb_template.c
index c71417d7e1..a86f21ed29 100644
--- a/libswscale/rgb2rgb_template.c
+++ b/libswscale/rgb2rgb_template.c
@@ -633,11 +633,9 @@ static inline void uyvytoyv12_c(const uint8_t *src, uint8_t *ydst,
  * others are ignored in the C version.
  * FIXME: Write HQ version.
  */
-void rgb24toyv12_c(const uint8_t *src, uint8_t *ydst,
-                                 uint8_t *udst, uint8_t *vdst,
-                                 long width, long height,
-                                 long lumStride, long chromStride,
-                                 long srcStride)
+void rgb24toyv12_c(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
+                   uint8_t *vdst, long width, long height, long lumStride,
+                   long chromStride, long srcStride)
 {
     long y;
     const int chromWidth = width >> 1;