path: root/vlc/build/ffmpeg-0.6.1_libvpx-0.9.2-3.diff

diff --git a/cmdutils.c b/cmdutils.c
index 2349b70..8f7ad3e 100644
--- a/cmdutils.c
+++ b/cmdutils.c
@@ -47,6 +47,7 @@
 #endif
 
 const char **opt_names;
+const char **opt_values;
 static int opt_name_count;
 AVCodecContext *avcodec_opts[AVMEDIA_TYPE_NB];
 AVFormatContext *avformat_opts;
@@ -213,15 +214,25 @@ int opt_default(const char *opt, const char *arg){
         exit(1);
     }
     if (!o) {
+        AVCodec *p = NULL;
+        while ((p=av_codec_next(p))){
+            AVClass *c= p->priv_class;
+            if(c && av_find_opt(&c, opt, NULL, 0, 0))
+                break;
+        }
+        if(!p){
         fprintf(stderr, "Unrecognized option '%s'\n", opt);
         exit(1);
+        }
     }
 
 //    av_log(NULL, AV_LOG_ERROR, "%s:%s: %f 0x%0X\n", opt, arg, av_get_double(avcodec_opts, opt, NULL), (int)av_get_int(avcodec_opts, opt, NULL));
 
     //FIXME we should always use avcodec_opts, ... for storing options so there will not be any need to keep track of what i set over this
+    opt_values= av_realloc(opt_values, sizeof(void*)*(opt_name_count+1));
+    opt_values[opt_name_count]= o ? NULL : arg;
     opt_names= av_realloc(opt_names, sizeof(void*)*(opt_name_count+1));
-    opt_names[opt_name_count++]= o->name;
+    opt_names[opt_name_count++]= o ? o->name : opt;
 
     if(avcodec_opts[0]->debug || avformat_opts->debug)
         av_log_set_level(AV_LOG_DEBUG);
@@ -276,9 +287,16 @@ int opt_timelimit(const char *opt, const char *arg)
     return 0;
 }
 
-void set_context_opts(void *ctx, void *opts_ctx, int flags)
+void set_context_opts(void *ctx, void *opts_ctx, int flags, AVCodec *codec)
 {
     int i;
+    void *priv_ctx=NULL;
+    if(!strcmp("AVCodecContext", (*(AVClass**)ctx)->class_name)){
+        AVCodecContext *avctx= ctx;
+        if(codec && codec->priv_class && avctx->priv_data){
+            priv_ctx= avctx->priv_data;
+        }
+    }
     for(i=0; i<opt_name_count; i++){
         char buf[256];
         const AVOption *opt;
@@ -286,6 +304,12 @@ void set_context_opts(void *ctx, void *opts_ctx, int flags)
         /* if an option with name opt_names[i] is present in opts_ctx then str is non-NULL */
         if(str && ((opt->flags & flags) == flags))
             av_set_string3(ctx, opt_names[i], str, 1, NULL);
+        /* We need to use a differnt system to pass options to the private context because
+           it is not known which codec and thus context kind that will be when parsing options
+           we thus use opt_values directly instead of opts_ctx */
+        if(!str && priv_ctx && av_get_string(priv_ctx, opt_names[i], &opt, buf, sizeof(buf))){
+            av_set_string3(priv_ctx, opt_names[i], opt_values[i], 1, NULL);
+        }
     }
 }
 
diff --git a/cmdutils.h b/cmdutils.h
index 5656370..011d84b 100644
--- a/cmdutils.h
+++ b/cmdutils.h
@@ -132,7 +132,7 @@ void show_help_options(const OptionDef *options, const char *msg, int mask, int
 void parse_options(int argc, char **argv, const OptionDef *options,
                    void (* parse_arg_function)(const char*));
 
-void set_context_opts(void *ctx, void *opts_ctx, int flags);
+void set_context_opts(void *ctx, void *opts_ctx, int flags, AVCodec *codec);
 
 /**
  * Prints an error message to stderr, indicating filename and a human
diff --git a/ffmpeg.c b/ffmpeg.c
index 6b9380f..c386430 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -2988,7 +2988,7 @@ static void opt_input_file(const char *filename)
     ap->channel = video_channel;
     ap->standard = video_standard;
 
-    set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
+    set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
 
     ic->video_codec_id   =
         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
@@ -3063,45 +3063,46 @@ static void opt_input_file(const char *filename)
     /* update the current parameters so that they match the one of the input stream */
     for(i=0;i<ic->nb_streams;i++) {
         AVStream *st = ic->streams[i];
-        AVCodecContext *enc = st->codec;
-        avcodec_thread_init(enc, thread_count);
-        switch(enc->codec_type) {
+        AVCodecContext *dec = st->codec;
+        avcodec_thread_init(dec, thread_count);
+        switch (dec->codec_type) {
         case AVMEDIA_TYPE_AUDIO:
-            set_context_opts(enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
-            //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
-            channel_layout = enc->channel_layout;
-            audio_channels = enc->channels;
-            audio_sample_rate = enc->sample_rate;
-            audio_sample_fmt = enc->sample_fmt;
             input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(audio_codec_name);
+            set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_icodecs-1]);
+            //fprintf(stderr, "\nInput Audio channels: %d", dec->channels);
+            channel_layout    = dec->channel_layout;
+            audio_channels    = dec->channels;
+            audio_sample_rate = dec->sample_rate;
+            audio_sample_fmt  = dec->sample_fmt;
             if(audio_disable)
                 st->discard= AVDISCARD_ALL;
             break;
         case AVMEDIA_TYPE_VIDEO:
-            set_context_opts(enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
-            frame_height = enc->height;
-            frame_width = enc->width;
+            input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(video_codec_name);
+            set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_icodecs-1]);
+            frame_height = dec->height;
+            frame_width  = dec->width;
             if(ic->streams[i]->sample_aspect_ratio.num)
                 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
             else
-                frame_aspect_ratio=av_q2d(enc->sample_aspect_ratio);
-            frame_aspect_ratio *= (float) enc->width / enc->height;
-            frame_pix_fmt = enc->pix_fmt;
+                frame_aspect_ratio=av_q2d(dec->sample_aspect_ratio);
+            frame_aspect_ratio *= (float) dec->width / dec->height;
+            frame_pix_fmt = dec->pix_fmt;
             rfps      = ic->streams[i]->r_frame_rate.num;
             rfps_base = ic->streams[i]->r_frame_rate.den;
-            if(enc->lowres) {
-                enc->flags |= CODEC_FLAG_EMU_EDGE;
-                frame_height >>= enc->lowres;
-                frame_width  >>= enc->lowres;
+            if (dec->lowres) {
+                dec->flags |= CODEC_FLAG_EMU_EDGE;
+                frame_height >>= dec->lowres;
+                frame_width  >>= dec->lowres;
             }
             if(me_threshold)
-                enc->debug |= FF_DEBUG_MV;
+                dec->debug |= FF_DEBUG_MV;
 
-            if (enc->time_base.den != rfps*enc->ticks_per_frame || enc->time_base.num != rfps_base) {
+            if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
 
                 if (verbose >= 0)
                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
-                            i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
+                            i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
 
                     (float)rfps / rfps_base, rfps, rfps_base);
             }
@@ -3109,7 +3110,6 @@ static void opt_input_file(const char *filename)
             frame_rate.num = rfps;
             frame_rate.den = rfps_base;
 
-            input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(video_codec_name);
             if(video_disable)
                 st->discard= AVDISCARD_ALL;
             else if(video_discard)
@@ -3188,13 +3188,27 @@ static void new_video_stream(AVFormatContext *oc)
     AVStream *st;
     AVCodecContext *video_enc;
     enum CodecID codec_id;
+    AVCodec *codec= NULL;
 
     st = av_new_stream(oc, oc->nb_streams);
     if (!st) {
         fprintf(stderr, "Could not alloc stream\n");
         av_exit(1);
     }
-    avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_VIDEO);
+
+    if(!video_stream_copy){
+        if (video_codec_name) {
+            codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
+                                         avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
+            codec = avcodec_find_encoder_by_name(video_codec_name);
+            output_codecs[nb_ocodecs] = codec;
+        } else {
+            codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
+            codec = avcodec_find_encoder(codec_id);
+        }
+    }
+
+    avcodec_get_context_defaults3(st->codec, codec);
     bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
     video_bitstream_filters= NULL;
 
@@ -3223,22 +3237,10 @@ static void new_video_stream(AVFormatContext *oc)
     } else {
         const char *p;
         int i;
-        AVCodec *codec;
         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
 
-        if (video_codec_name) {
-            codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
-                                         video_enc->strict_std_compliance);
-            codec = avcodec_find_encoder_by_name(video_codec_name);
-            output_codecs[nb_ocodecs] = codec;
-        } else {
-            codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
-            codec = avcodec_find_encoder(codec_id);
-        }
-
         video_enc->codec_id = codec_id;
-
-        set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
+        set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
 
         if (codec && codec->supported_framerates && !force_fps)
             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
@@ -3324,6 +3326,7 @@ static void new_video_stream(AVFormatContext *oc)
 static void new_audio_stream(AVFormatContext *oc)
 {
     AVStream *st;
+    AVCodec *codec= NULL;
     AVCodecContext *audio_enc;
     enum CodecID codec_id;
 
@@ -3332,7 +3335,20 @@ static void new_audio_stream(AVFormatContext *oc)
         fprintf(stderr, "Could not alloc stream\n");
         av_exit(1);
     }
-    avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_AUDIO);
+
+    if(!audio_stream_copy){
+        if (audio_codec_name) {
+            codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
+                                         avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
+            codec = avcodec_find_encoder_by_name(audio_codec_name);
+            output_codecs[nb_ocodecs] = codec;
+        } else {
+            codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
+            codec = avcodec_find_encoder(codec_id);
+        }
+    }
+
+    avcodec_get_context_defaults3(st->codec, codec);
 
     bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
     audio_bitstream_filters= NULL;
@@ -3354,20 +3370,8 @@ static void new_audio_stream(AVFormatContext *oc)
         audio_enc->channels = audio_channels;
         audio_enc->sample_rate = audio_sample_rate;
     } else {
-        AVCodec *codec;
-
-        set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
-
-        if (audio_codec_name) {
-            codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
-                                         audio_enc->strict_std_compliance);
-            codec = avcodec_find_encoder_by_name(audio_codec_name);
-            output_codecs[nb_ocodecs] = codec;
-        } else {
-            codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
-            codec = avcodec_find_encoder(codec_id);
-        }
         audio_enc->codec_id = codec_id;
+        set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
 
         if (audio_qscale > QSCALE_NONE) {
             audio_enc->flags |= CODEC_FLAG_QSCALE;
@@ -3398,6 +3402,7 @@ static void new_audio_stream(AVFormatContext *oc)
 static void new_subtitle_stream(AVFormatContext *oc)
 {
     AVStream *st;
+    AVCodec *codec=NULL;
     AVCodecContext *subtitle_enc;
 
     st = av_new_stream(oc, oc->nb_streams);
@@ -3405,12 +3410,17 @@ static void new_subtitle_stream(AVFormatContext *oc)
         fprintf(stderr, "Could not alloc stream\n");
         av_exit(1);
     }
-    avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_SUBTITLE);
+    subtitle_enc = st->codec;
+    if(!subtitle_stream_copy){
+        subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
+                                                   avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
+        codec= output_codecs[nb_ocodecs] = avcodec_find_encoder_by_name(subtitle_codec_name);
+    }
+    avcodec_get_context_defaults3(st->codec, codec);
 
     bitstream_filters[nb_output_files][oc->nb_streams - 1]= subtitle_bitstream_filters;
     subtitle_bitstream_filters= NULL;
 
-    subtitle_enc = st->codec;
     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
 
     if(subtitle_codec_tag)
@@ -3419,10 +3429,7 @@ static void new_subtitle_stream(AVFormatContext *oc)
     if (subtitle_stream_copy) {
         st->stream_copy = 1;
     } else {
-        set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
-        subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
-                                                   subtitle_enc->strict_std_compliance);
-        output_codecs[nb_ocodecs] = avcodec_find_encoder_by_name(subtitle_codec_name);
+        set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
     }
     nb_ocodecs++;
 
@@ -3615,7 +3622,7 @@ static void opt_output_file(const char *filename)
     oc->loop_output = loop_output;
     oc->flags |= AVFMT_FLAG_NONBLOCK;
 
-    set_context_opts(oc, avformat_opts, AV_OPT_FLAG_ENCODING_PARAM);
+    set_context_opts(oc, avformat_opts, AV_OPT_FLAG_ENCODING_PARAM, NULL);
 }
 
 /* same option as mencoder */
diff --git a/ffplay.c b/ffplay.c
index e79e17b..9c58940 100644
--- a/ffplay.c
+++ b/ffplay.c
@@ -2206,7 +2206,7 @@ static int stream_component_open(VideoState *is, int stream_index)
     avctx->error_concealment= error_concealment;
     avcodec_thread_init(avctx, thread_count);
 
-    set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0);
+    set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
 
     if (!codec ||
         avcodec_open(avctx, codec) < 0)
@@ -2384,7 +2384,7 @@ static int decode_thread(void *arg)
     ap->time_base= (AVRational){1, 25};
     ap->pix_fmt = frame_pix_fmt;
 
-    set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
+    set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
 
     err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
     if (err < 0) {
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 974e87c..6a6f2a7 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -30,7 +30,7 @@
 #include "libavutil/avutil.h"
 
 #define LIBAVCODEC_VERSION_MAJOR 52
-#define LIBAVCODEC_VERSION_MINOR 72
+#define LIBAVCODEC_VERSION_MINOR 73
 #define LIBAVCODEC_VERSION_MICRO  2
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
@@ -2652,6 +2652,15 @@ typedef struct AVCodecContext {
      * - decoding: unused
      */
     int rc_lookahead;
+
+    /**
+     * Number of slices.
+     * Indicates number of picture subdivisions. Used for parallelized
+     * decoding.
+     * - encoding: Set by user
+     * - decoding: unused
+     */
+    int slices;
 } AVCodecContext;
 
 /**
@@ -2693,6 +2702,7 @@ typedef struct AVCodec {
     const int *supported_samplerates;       ///< array of supported audio samplerates, or NULL if unknown, array is terminated by 0
     const enum SampleFormat *sample_fmts;   ///< array of supported sample formats, or NULL if unknown, array is terminated by -1
     const int64_t *channel_layouts;         ///< array of support channel layouts, or NULL if unknown. array is terminated by 0
+    AVClass *priv_class;                    ///< AVClass for the private context
 } AVCodec;
 
 /**
@@ -3327,6 +3337,10 @@ void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
                                int linesize_align[4]);
 
+/** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API!
+ *  we WILL change its arguments and name a few times! */
+int avcodec_get_context_defaults3(AVCodecContext *s, AVCodec *codec);
+
 /**
  * Checks if the given dimension of a picture is valid, meaning that all
  * bytes of the picture can be addressed with a signed int.
@@ -3344,6 +3358,10 @@ int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, v
 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int, int),void *arg, int *ret, int count);
 //FIXME func typedef
 
+/** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API!
+ *  we WILL change its arguments and name a few times! */
+AVCodecContext *avcodec_alloc_context3(AVCodec *codec);
+
 /**
  * Initializes the AVCodecContext to use the given AVCodec. Prior to using this
  * function the context has to be allocated.
diff --git a/libavcodec/libvpxenc.c b/libavcodec/libvpxenc.c
index fa393b8..37b51b2 100644
--- a/libavcodec/libvpxenc.c
+++ b/libavcodec/libvpxenc.c
@@ -30,19 +30,20 @@
 
 #include "avcodec.h"
 #include "libavutil/base64.h"
+#include "libavcodec/opt.h"
 
 /**
  * Portion of struct vpx_codec_cx_pkt from vpx_encoder.h.
  * One encoded frame returned from the library.
  */
 struct FrameListData {
-    void *buf;                       /**≤ compressed data buffer */
-    size_t sz;                       /**≤ length of compressed data */
-    int64_t pts;                     /**≤ time stamp to show frame
+    void *buf;                       /**< compressed data buffer */
+    size_t sz;                       /**< length of compressed data */
+    int64_t pts;                     /**< time stamp to show frame
                                           (in timebase units) */
-    unsigned long duration;          /**≤ duration to show frame
+    unsigned long duration;          /**< duration to show frame
                                           (in timebase units) */
-    uint32_t flags;                  /**≤ flags for this frame */
+    uint32_t flags;                  /**< flags for this frame */
     struct FrameListData *next;
 };
 
@@ -50,10 +51,32 @@ typedef struct VP8EncoderContext {
     struct vpx_codec_ctx encoder;
     struct vpx_image rawimg;
     struct vpx_fixed_buf twopass_stats;
-    unsigned long deadline; //i.e., RT/GOOD/BEST
+    int deadline; //i.e., RT/GOOD/BEST
     struct FrameListData *coded_frame_list;
+
+    int cpuused;
+
+    /**
+     * VP8 specific flags, see VP8F_* below.
+     */
+    int flags;
+#define VP8F_ERROR_RESILIENT 0x00000001 ///< Enable measures appropriate for streaming over lossy links
+#define VP8F_AUTO_ALT_REF    0x00000002 ///< Enable automatic alternate reference frame generation
 } VP8Context;
 
+static const AVOption options[]={
+{"speed", "", offsetof(VP8Context, cpuused), FF_OPT_TYPE_INT, 3, -16, 16, AV_OPT_FLAG_ENCODING_PARAM},
+{"quality", "", offsetof(VP8Context, deadline), FF_OPT_TYPE_INT, VPX_DL_GOOD_QUALITY, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "quality"},
+{"best", NULL, 0, FF_OPT_TYPE_CONST, VPX_DL_BEST_QUALITY, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "quality"},
+{"good", NULL, 0, FF_OPT_TYPE_CONST, VPX_DL_GOOD_QUALITY, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "quality"},
+{"realtime", NULL, 0, FF_OPT_TYPE_CONST, VPX_DL_REALTIME, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "quality"},
+{"vp8flags", "", offsetof(VP8Context, flags), FF_OPT_TYPE_FLAGS, 0, 0, UINT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "flags"},
+{"error_resilient", "enable error resilience", 0, FF_OPT_TYPE_CONST, VP8F_ERROR_RESILIENT, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "flags"},
+{"altref", "enable use of alternate reference frames (VP8/2-pass only)", 0, FF_OPT_TYPE_CONST, VP8F_AUTO_ALT_REF, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "flags"},
+{NULL}
+};
+static const AVClass class = { "libvpx", av_default_item_name, options, LIBAVUTIL_VERSION_INT };
+
 /** String mappings for enum vp8e_enc_control_id */
 static const char *ctlidstr[] = {
     [VP8E_UPD_ENTROPY]           = "VP8E_UPD_ENTROPY",
@@ -204,7 +227,6 @@ static av_cold int vp8_init(AVCodecContext *avctx)
 {
     VP8Context *ctx = avctx->priv_data;
     const struct vpx_codec_iface *iface = &vpx_codec_vp8_cx_algo;
-    int cpuused = 3;
     struct vpx_codec_enc_cfg enccfg;
     int res;
 
@@ -218,11 +240,21 @@ static av_cold int vp8_init(AVCodecContext *avctx)
     }
     dump_enc_cfg(avctx, &enccfg);
 
+    /* With altref set an additional frame at the same pts may be produced.
+       Increasing the time_base gives the library a window to place these frames
+       ensuring strictly increasing timestamps. */
+    if (ctx->flags & VP8F_AUTO_ALT_REF) {
+        avctx->ticks_per_frame = 2;
+        avctx->time_base       = av_mul_q(avctx->time_base,
+                                          (AVRational){1, avctx->ticks_per_frame});
+    }
+
     enccfg.g_w            = avctx->width;
     enccfg.g_h            = avctx->height;
     enccfg.g_timebase.num = avctx->time_base.num;
     enccfg.g_timebase.den = avctx->time_base.den;
     enccfg.g_threads      = avctx->thread_count;
+    enccfg.g_lag_in_frames= FFMIN(avctx->rc_lookahead, 25);  //0-25, avoids init failure
 
     if (avctx->flags & CODEC_FLAG_PASS1)
         enccfg.g_pass = VPX_RC_FIRST_PASS;
@@ -240,11 +272,27 @@ static av_cold int vp8_init(AVCodecContext *avctx)
     //convert [1,51] -> [0,63]
     enccfg.rc_min_quantizer = ((avctx->qmin * 5 + 1) >> 2) - 1;
     enccfg.rc_max_quantizer = ((avctx->qmax * 5 + 1) >> 2) - 1;
-
+    enccfg.rc_dropframe_thresh = avctx->frame_skip_threshold;
+
+    //0-100 (0 => CBR, 100 => VBR)
+    enccfg.rc_2pass_vbr_bias_pct           = round(avctx->qcompress * 100);
+    enccfg.rc_2pass_vbr_minsection_pct     =
+        avctx->rc_min_rate * 100LL / avctx->bit_rate;
+    if (avctx->rc_max_rate)
+        enccfg.rc_2pass_vbr_maxsection_pct =
+            avctx->rc_max_rate * 100LL / avctx->bit_rate;
+
+    if (avctx->rc_buffer_size)
+        enccfg.rc_buf_sz         =
+            avctx->rc_buffer_size * 1000LL / avctx->bit_rate;
+    if (avctx->rc_initial_buffer_occupancy)
+        enccfg.rc_buf_initial_sz =
+            avctx->rc_initial_buffer_occupancy * 1000LL / avctx->bit_rate;
+    enccfg.rc_buf_optimal_sz     = enccfg.rc_buf_sz * 5 / 6;
+    enccfg.rc_undershoot_pct     = round(avctx->rc_buffer_aggressivity * 100);
+
+    //_enc_init() will balk if kf_min_dist differs from max w/VPX_KF_AUTO
     if (avctx->keyint_min == avctx->gop_size)
-        enccfg.kf_mode = VPX_KF_FIXED;
-    //_enc_init() will balk if kf_min_dist is set in this case
-    if (enccfg.kf_mode != VPX_KF_AUTO)
         enccfg.kf_min_dist = avctx->keyint_min;
     enccfg.kf_max_dist     = avctx->gop_size;
 
@@ -277,7 +325,13 @@ static av_cold int vp8_init(AVCodecContext *avctx)
         enccfg.rc_twopass_stats_in = ctx->twopass_stats;
     }
 
-    ctx->deadline = VPX_DL_GOOD_QUALITY;
+    /* 0-3: For non-zero values the encoder increasingly optimizes for reduced
+       complexity playback on low powered devices at the expense of encode
+       quality. */
+   if (avctx->profile != FF_PROFILE_UNKNOWN)
+       enccfg.g_profile = avctx->profile;
+
+    enccfg.g_error_resilient = ctx->flags & VP8F_ERROR_RESILIENT;
 
     dump_enc_cfg(avctx, &enccfg);
     /* Construct Encoder Context */
@@ -289,8 +343,12 @@ static av_cold int vp8_init(AVCodecContext *avctx)
 
     //codec control failures are currently treated only as warnings
     av_log(avctx, AV_LOG_DEBUG, "vpx_codec_control\n");
-    codecctl_int(avctx, VP8E_SET_CPUUSED,           cpuused);
+    codecctl_int(avctx, VP8E_SET_CPUUSED,           ctx->cpuused);
     codecctl_int(avctx, VP8E_SET_NOISE_SENSITIVITY, avctx->noise_reduction);
+    codecctl_int(avctx, VP8E_SET_TOKEN_PARTITIONS,  av_log2(avctx->slices));
+    codecctl_int(avctx, VP8E_SET_ENABLEAUTOALTREF,  !!(ctx->flags & VP8F_AUTO_ALT_REF));
+
+    av_log(avctx, AV_LOG_DEBUG, "Using deadline: %d\n", ctx->deadline);
 
     //provide dummy value to initialize wrapper, values will be updated each _encode()
     vpx_img_wrap(&ctx->rawimg, VPX_IMG_FMT_I420, avctx->width, avctx->height, 1,
@@ -486,4 +544,5 @@ AVCodec libvpx_encoder = {
     CODEC_CAP_DELAY,
     .pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
     .long_name = NULL_IF_CONFIG_SMALL("libvpx VP8"),
+    .priv_class= &class,
 };
diff --git a/libavcodec/options.c b/libavcodec/options.c
index 97d705e..73dcb85 100644
--- a/libavcodec/options.c
+++ b/libavcodec/options.c
@@ -411,6 +411,7 @@ static const AVOption options[]={
 {"aq_strength", "specify aq strength", OFFSET(aq_strength), FF_OPT_TYPE_FLOAT, 1.0, 0, FLT_MAX, V|E},
 {"rc_lookahead", "specify number of frames to look ahead for frametype", OFFSET(rc_lookahead), FF_OPT_TYPE_INT, 40, 0, INT_MAX, V|E},
 {"ssim", "ssim will be calculated during encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_SSIM, INT_MIN, INT_MAX, V|E, "flags2"},
+{"slices", "number of slices, used in parallelized decoding", OFFSET(slices), FF_OPT_TYPE_INT, 0, 0, INT_MAX, V|E},
 {NULL},
 };
 
@@ -453,6 +454,36 @@ void avcodec_get_context_defaults2(AVCodecContext *s, enum AVMediaType codec_typ
     s->reordered_opaque= AV_NOPTS_VALUE;
 }
 
+int avcodec_get_context_defaults3(AVCodecContext *s, AVCodec *codec){
+    avcodec_get_context_defaults2(s, codec ? codec->type : AVMEDIA_TYPE_UNKNOWN);
+    if(codec && codec->priv_data_size){
+        if(!s->priv_data){
+            s->priv_data= av_mallocz(codec->priv_data_size);
+            if (!s->priv_data) {
+                return AVERROR(ENOMEM);
+            }
+        }
+        if(codec->priv_class){
+            *(AVClass**)s->priv_data= codec->priv_class;
+            av_opt_set_defaults(s->priv_data);
+        }
+    }
+    return 0;
+}
+
+AVCodecContext *avcodec_alloc_context3(AVCodec *codec){
+    AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));
+
+    if(avctx==NULL) return NULL;
+
+    if(avcodec_get_context_defaults3(avctx, codec) < 0){
+        av_free(avctx);
+        return NULL;
+    }
+
+    return avctx;
+}
+
 AVCodecContext *avcodec_alloc_context2(enum AVMediaType codec_type){
     AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));
 
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 014427d..99e754e 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -479,11 +479,17 @@ int attribute_align_arg avcodec_open(AVCodecContext *avctx, AVCodec *codec)
         goto end;
 
     if (codec->priv_data_size > 0) {
+      if(!avctx->priv_data){
         avctx->priv_data = av_mallocz(codec->priv_data_size);
         if (!avctx->priv_data) {
             ret = AVERROR(ENOMEM);
             goto end;
         }
+        if(codec->priv_class){ //this can be droped once all user apps use   avcodec_get_context_defaults3()
+            *(AVClass**)avctx->priv_data= codec->priv_class;
+            av_opt_set_defaults(avctx->priv_data);
+        }
+      }
     } else {
         avctx->priv_data = NULL;
     }
diff --git a/libavutil/log.c b/libavutil/log.c
index 9a8b66e..f1501c5 100644
--- a/libavutil/log.c
+++ b/libavutil/log.c
@@ -55,6 +55,10 @@ static void colored_fputs(int color, const char *str){
     }
 }
 
+const char* av_default_item_name(void* ptr){
+    return (*(AVClass**)ptr)->class_name;
+}
+
 void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
 {
     static int print_prefix=1;
diff --git a/libavutil/log.h b/libavutil/log.h
index 1c3e490..cf61f0c 100644
--- a/libavutil/log.h
+++ b/libavutil/log.h
@@ -119,5 +119,6 @@ int av_log_get_level(void);
 void av_log_set_level(int);
 void av_log_set_callback(void (*)(void*, int, const char*, va_list));
 void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl);
+const char* av_default_item_name(void* ctx);
 
 #endif /* AVUTIL_LOG_H */
Index: ffpresets/libvpx-720p50_60.ffpreset
===================================================================
--- ffpresets/libvpx-720p50_60.ffpreset	(revision 0)
+++ ffpresets/libvpx-720p50_60.ffpreset	(revision 0)
@@ -0,0 +1,14 @@
+vcodec=libvpx
+g=120
+rc_lookahead=25
+quality=good
+speed=0
+profile=0
+qmax=51
+qmin=11
+slices=4
+vb=2M
+
+#ignored unless using -pass 2
+maxrate=24M
+minrate=100k
Index: ffpresets/libvpx-1080p.ffpreset
===================================================================
--- ffpresets/libvpx-1080p.ffpreset	(revision 0)
+++ ffpresets/libvpx-1080p.ffpreset	(revision 0)
@@ -0,0 +1,14 @@
+vcodec=libvpx
+g=120
+rc_lookahead=16
+quality=good
+speed=0
+profile=1
+qmax=51
+qmin=11
+slices=4
+vb=2M
+
+#ignored unless using -pass 2
+maxrate=24M
+minrate=100k
Index: ffpresets/libvpx-1080p50_60.ffpreset
===================================================================
--- ffpresets/libvpx-1080p50_60.ffpreset	(revision 0)
+++ ffpresets/libvpx-1080p50_60.ffpreset	(revision 0)
@@ -0,0 +1,14 @@
+vcodec=libvpx
+g=120
+rc_lookahead=25
+quality=good
+speed=0
+profile=1
+qmax=51
+qmin=11
+slices=4
+vb=2M
+
+#ignored unless using -pass 2
+maxrate=24M
+minrate=100k
Index: ffpresets/libvpx-360p.ffpreset
===================================================================
--- ffpresets/libvpx-360p.ffpreset	(revision 0)
+++ ffpresets/libvpx-360p.ffpreset	(revision 0)
@@ -0,0 +1,13 @@
+vcodec=libvpx
+g=120
+rc_lookahead=16
+quality=good
+speed=0
+profile=0
+qmax=63
+qmin=0
+vb=768k
+
+#ignored unless using -pass 2
+maxrate=1.5M
+minrate=40k
Index: ffpresets/libvpx-720p.ffpreset
===================================================================
--- ffpresets/libvpx-720p.ffpreset	(revision 0)
+++ ffpresets/libvpx-720p.ffpreset	(revision 0)
@@ -0,0 +1,14 @@
+vcodec=libvpx
+g=120
+rc_lookahead=16
+quality=good
+speed=0
+profile=0
+qmax=51
+qmin=11
+slices=4
+vb=2M
+
+#ignored unless using -pass 2
+maxrate=24M
+minrate=100k