@@ -98,6 +98,7 @@ show_help(){

   echo "  --enable-libmp3lame      enable MP3 encoding via libmp3lame [default=no]"

   echo "  --enable-libnut          enable NUT (de)muxing via libnut,"

   echo "                           native demuxer exists [default=no]"

+  echo "  --enable-libschroedinger enable Dirac support via libschroedinger [default=no]"

   echo "  --enable-libtheora       enable Theora encoding via libtheora [default=no]"

   echo "  --enable-libvorbis       enable Vorbis encoding via libvorbis,"

   echo "                           native implementation exists [default=no]"

@@ -649,6 +650,7 @@ CONFIG_LIST="

     libgsm

     libmp3lame

     libnut

+    libschroedinger

     libtheora

     libvorbis

     libx264

@@ -834,6 +836,8 @@ libgsm_encoder_deps="libgsm"

 libgsm_ms_decoder_deps="libgsm"

 libgsm_ms_encoder_deps="libgsm"

 libmp3lame_encoder_deps="libmp3lame"

+libschroedinger_decoder_deps="libschroedinger"

+libschroedinger_encoder_deps="libschroedinger"

 libtheora_encoder_deps="libtheora"

 libvorbis_encoder_deps="libvorbis"

 libx264_encoder_deps="libx264"

@@ -1637,6 +1641,8 @@ enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad

 enabled libgsm     && require  libgsm gsm.h gsm_create -lgsm

 enabled libmp3lame && require  LAME lame/lame.h lame_init -lmp3lame -lm

 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut

+enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) \

+                        && require libschroedinger schroedinger/schro.h schro_init -lschroedinger-1.0 -lpthread -loil-0.3 -lm -lrt

 enabled libtheora  && require  libtheora theora/theora.h theora_info_init -ltheora -logg

 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg

 enabled libx264    && require  x264 x264.h x264_encoder_open -lx264 -lm

@@ -1923,6 +1929,7 @@ echo "libfaad dlopened          ${libfaadbin-no}"

 echo "libgsm enabled            ${libgsm-no}"

 echo "libmp3lame enabled        ${libmp3lame-no}"

 echo "libnut enabled            ${libnut-no}"

+echo "libschroedinger enabled   ${libschroedinger-no}"

 echo "libtheora enabled         ${libtheora-no}"

 echo "libvorbis enabled         ${libvorbis-no}"

 echo "x264 enabled              ${libx264-no}"

@@ -325,6 +325,8 @@ OBJS-$(CONFIG_LIBFAAC)                 += libfaac.o

 OBJS-$(CONFIG_LIBFAAD)                 += libfaad.o

 OBJS-$(CONFIG_LIBGSM)                  += libgsm.o

 OBJS-$(CONFIG_LIBMP3LAME)              += libmp3lame.o

+OBJS-$(CONFIG_LIBSCHROEDINGER_DECODER) += libschroedingerdec.o libschroedinger.o libdirac_libschro.o

+OBJS-$(CONFIG_LIBSCHROEDINGER_ENCODER) += libschroedingerenc.o libschroedinger.o libdirac_libschro.o

 OBJS-$(CONFIG_LIBTHEORA)               += libtheoraenc.o

 OBJS-$(CONFIG_LIBVORBIS)               += libvorbis.o

 OBJS-$(CONFIG_LIBX264)                 += libx264.o

@@ -283,6 +283,7 @@ void avcodec_register_all(void)

     REGISTER_ENCDEC  (LIBGSM, libgsm);

     REGISTER_ENCDEC  (LIBGSM_MS, libgsm_ms);

     REGISTER_ENCODER (LIBMP3LAME, libmp3lame);

+    REGISTER_ENCDEC  (LIBSCHROEDINGER, libschroedinger);

     REGISTER_ENCODER (LIBTHEORA, libtheora);

     REGISTER_ENCODER (LIBVORBIS, libvorbis);

     REGISTER_ENCODER (LIBX264, libx264);

new file mode 100644

@@ -0,0 +1,80 @@

+/*

+ * Copyright (c) 2008 BBC, Anuradha Suraparaju <asuraparaju at gmail dot com >

+ *

+ * This file is part of FFmpeg.

+ *

+ * FFmpeg is free software; you can redistribute it and/or

+ * modify it under the terms of the GNU Lesser General Public

+ * License as published by the Free Software Foundation; either

+ * version 2.1 of the License, or (at your option) any later version.

+ *

+ * FFmpeg is distributed in the hope that it will be useful,

+ * but WITHOUT ANY WARRANTY; without even the implied warranty of

+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

+ * Lesser General Public License for more details.

+ *

+ * You should have received a copy of the GNU Lesser General Public

+ * License along with FFmpeg; if not, write to the Free Software

+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

+ */

+

+/**

+* @file libschroedinger.c

+* function definitions common to libschroedingerdec.c and libschroedingerenc.c

+*/

+

+#include "libdirac_libschro.h"

+#include "libschroedinger.h"

+

+/**

+* Schroedinger video preset table. Ensure that this tables matches up correctly

+* with the ff_dirac_schro_video_format_info table in libdirac_libschro.c.

+*/

+static const SchroVideoFormatEnum ff_schro_video_formats[]={

+    SCHRO_VIDEO_FORMAT_CUSTOM     ,

+    SCHRO_VIDEO_FORMAT_QSIF       ,

+    SCHRO_VIDEO_FORMAT_QCIF       ,

+    SCHRO_VIDEO_FORMAT_SIF        ,

+    SCHRO_VIDEO_FORMAT_CIF        ,

+    SCHRO_VIDEO_FORMAT_4SIF       ,

+    SCHRO_VIDEO_FORMAT_4CIF       ,

+    SCHRO_VIDEO_FORMAT_SD480I_60  ,

+    SCHRO_VIDEO_FORMAT_SD576I_50  ,

+    SCHRO_VIDEO_FORMAT_HD720P_60  ,

+    SCHRO_VIDEO_FORMAT_HD720P_50  ,

+    SCHRO_VIDEO_FORMAT_HD1080I_60 ,

+    SCHRO_VIDEO_FORMAT_HD1080I_50 ,

+    SCHRO_VIDEO_FORMAT_HD1080P_60 ,

+    SCHRO_VIDEO_FORMAT_HD1080P_50 ,

+    SCHRO_VIDEO_FORMAT_DC2K_24    ,

+    SCHRO_VIDEO_FORMAT_DC4K_24    ,

+};

+

+SchroVideoFormatEnum ff_get_schro_video_format_preset(AVCodecContext *avccontext)

+{

+    unsigned int num_formats = sizeof(ff_schro_video_formats) /

+                               sizeof(ff_schro_video_formats[0]);

+

+    unsigned int idx = ff_dirac_schro_get_video_format_idx (avccontext);

+

+    return (idx < num_formats) ?

+                 ff_schro_video_formats[idx] : SCHRO_VIDEO_FORMAT_CUSTOM;

+}

+

+int ff_get_schro_frame_format (SchroChromaFormat schro_pix_fmt,

+                               SchroFrameFormat  *schro_frame_fmt)

+{

+    unsigned int num_formats = sizeof(ffmpeg_schro_pixel_format_map) /

+                               sizeof(ffmpeg_schro_pixel_format_map[0]);

+

+    int idx;

+

+    for (idx = 0; idx < num_formats; ++idx) {

+        if (ffmpeg_schro_pixel_format_map[idx].schro_pix_fmt == schro_pix_fmt) {

+            *schro_frame_fmt =

+                         ffmpeg_schro_pixel_format_map[idx].schro_frame_fmt;

+            return 0;

+        }

+    }

+    return -1;

+}

new file mode 100644

@@ -0,0 +1,61 @@

+/*

+ * Copyright (c) 2008 BBC, Anuradha Suraparaju <asuraparaju at gmail dot com >

+ *

+ * This file is part of FFmpeg.

+ *

+ * FFmpeg is free software; you can redistribute it and/or

+ * modify it under the terms of the GNU Lesser General Public

+ * License as published by the Free Software Foundation; either

+ * version 2.1 of the License, or (at your option) any later version.

+ *

+ * FFmpeg is distributed in the hope that it will be useful,

+ * but WITHOUT ANY WARRANTY; without even the implied warranty of

+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

+ * Lesser General Public License for more details.

+ *

+ * You should have received a copy of the GNU Lesser General Public

+ * License along with FFmpeg; if not, write to the Free Software

+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

+ */

+

+/**

+* @file libschroedinger.h

+* data structures common to libschroedingerdec.c and libschroedingerenc.c

+*/

+

+#ifndef FFMPEG_LIBSCHROEDINGER_H

+#define FFMPEG_LIBSCHROEDINGER_H

+

+#include "config.h"

+

+#ifdef CONFIG_LIBSCHROEDINGER

+

+#include <schroedinger/schrobitstream.h>

+#include <schroedinger/schroframe.h>

+#include "avcodec.h"

+

+static const struct {

+    enum PixelFormat  ff_pix_fmt;

+    SchroChromaFormat schro_pix_fmt;

+    SchroFrameFormat  schro_frame_fmt;

+} ffmpeg_schro_pixel_format_map[] = {

+    { PIX_FMT_YUV420P, SCHRO_CHROMA_420, SCHRO_FRAME_FORMAT_U8_420 },

+    { PIX_FMT_YUV422P, SCHRO_CHROMA_422, SCHRO_FRAME_FORMAT_U8_422 },

+    { PIX_FMT_YUV444P, SCHRO_CHROMA_444, SCHRO_FRAME_FORMAT_U8_444 },

+};

+

+/**

+* Returns the video format preset matching the input video dimensions and

+* time base.

+*/

+SchroVideoFormatEnum ff_get_schro_video_format_preset (AVCodecContext *avccontext);

+

+/**

+* Sets the Schroedinger frame format corresponding to the Schro chroma format

+* passed. Returns 0 on success, -1 on failure.

+*/

+int ff_get_schro_frame_format (SchroChromaFormat schro_chroma_fmt,

+                               SchroFrameFormat  *schro_frame_fmt);

+

+#endif /* CONFIG_LIBSCHROEDINGER */

+#endif /* FFMPEG_LIBSCHROEDINGER_H */

new file mode 100644

@@ -0,0 +1,310 @@

+/*

+ * Dirac decoder support via Schroedinger libraries

+ * Copyright (c) 2008 BBC, Anuradha Suraparaju <asuraparaju at gmail dot com >

+ *

+ * This file is part of FFmpeg.

+ *

+ * FFmpeg is free software; you can redistribute it and/or

+ * modify it under the terms of the GNU Lesser General Public

+ * License as published by the Free Software Foundation; either

+ * version 2.1 of the License, or (at your option) any later version.

+ *

+ * FFmpeg is distributed in the hope that it will be useful,

+ * but WITHOUT ANY WARRANTY; without even the implied warranty of

+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

+ * Lesser General Public License for more details.

+ *

+ * You should have received a copy of the GNU Lesser General Public

+ * License along with FFmpeg; if not, write to the Free Software

+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

+ */

+

+/**

+* @file libschroedingerdec.c

+* Dirac decoder support via libschroedinger-1.0 libraries. More details about

+* the Schroedinger project can be found at http://www.diracvideo.org/.

+* The library implements Dirac Specification Version 2.2.

+* (http://dirac.sourceforge.net/specification.html).

+*/

+

+#include "avcodec.h"

+#include "libdirac_libschro.h"

+#include "libschroedinger.h"

+

+#undef NDEBUG

+#include <assert.h>

+

+

+#include <schroedinger/schro.h>

+#include <schroedinger/schrodebug.h>

+#include <schroedinger/schrovideoformat.h>

+

+/** libschroedinger decoder private data */

+typedef struct FfmpegSchroDecoderParams

+{

+    /** Schroedinger video format */

+    SchroVideoFormat *format;

+

+    /** Schroedinger frame format */

+    SchroFrameFormat frame_format;

+

+    /** decoder handle */

+    SchroDecoder* decoder;

+

+    /** queue storing decoded frames */

+    FfmpegDiracSchroQueue dec_frame_queue;

+

+    /** end of sequence signalled */

+    int eos_signalled;

+

+    /** end of sequence pulled */

+    int eos_pulled;

+

+    /** decoded picture */

+    AVPicture dec_pic;

+} FfmpegSchroDecoderParams;

+

+/**

+* Returns FFmpeg chroma format.

+*/

+static enum PixelFormat GetFfmpegChromaFormat(SchroChromaFormat schro_pix_fmt)

+{

+    int num_formats = sizeof(ffmpeg_schro_pixel_format_map) /

+                      sizeof(ffmpeg_schro_pixel_format_map[0]);

+    int idx;

+

+    for (idx = 0; idx < num_formats; ++idx) {

+        if (ffmpeg_schro_pixel_format_map[idx].schro_pix_fmt == schro_pix_fmt) {

+            return ffmpeg_schro_pixel_format_map[idx].ff_pix_fmt;

+        }

+    }

+    return PIX_FMT_NONE;

+}

+

+/*-------------------------DECODER------------------------------------------*/

+

+static int libschroedinger_decode_init(AVCodecContext *avccontext)

+{

+

+    FfmpegSchroDecoderParams *p_schro_params = avccontext->priv_data ;

+    /* First of all, initialize our supporting libraries. */

+    schro_init();

+

+    schro_debug_set_level(avccontext->debug);

+    p_schro_params->decoder =  schro_decoder_new();

+    schro_decoder_set_skip_ratio(p_schro_params->decoder, 1);

+

+    if (!p_schro_params->decoder)

+        return -1;

+

+    /* Initialize the decoded frame queue. */

+    ff_dirac_schro_queue_init (&p_schro_params->dec_frame_queue);

+    return 0 ;

+}

+

+static void libschroedinger_decode_buffer_free (SchroBuffer *schro_buf,

+                                                void *priv)

+{

+    av_freep(&priv);

+}

+

+static void libschroedinger_decode_frame_free (void *frame)

+{

+    schro_frame_unref(frame);

+}

+

+static void libschroedinger_handle_first_access_unit(AVCodecContext *avccontext)

+{

+    FfmpegSchroDecoderParams *p_schro_params = avccontext->priv_data;

+    SchroDecoder *decoder = p_schro_params->decoder;

+

+    p_schro_params->format = schro_decoder_get_video_format (decoder);

+

+    /* Tell FFmpeg about sequence details. */

+    if(avcodec_check_dimensions(avccontext, p_schro_params->format->width,

+                                p_schro_params->format->height) < 0) {

+        av_log(avccontext, AV_LOG_ERROR, "invalid dimensions (%dx%d)\n",

+               p_schro_params->format->width, p_schro_params->format->height);

+        avccontext->height = avccontext->width = 0;

+        return -1;

+    }

+    avccontext->height  = p_schro_params->format->height;

+    avccontext->width   = p_schro_params->format->width;

+    avccontext->pix_fmt =

+                   GetFfmpegChromaFormat(p_schro_params->format->chroma_format);

+

+    if (ff_get_schro_frame_format( p_schro_params->format->chroma_format,

+                                   &p_schro_params->frame_format) == -1) {

+        av_log (avccontext, AV_LOG_ERROR,

+                "This codec currently only supports planar YUV 4:2:0, 4:2:2 "

+                "and 4:4:4 formats.\n");

+        return -1;

+    }

+

+    avccontext->time_base.den = p_schro_params->format->frame_rate_numerator;

+    avccontext->time_base.num = p_schro_params->format->frame_rate_denominator;

+

+    if (p_schro_params->dec_pic.data[0] == NULL)

+    {

+        avpicture_alloc(&p_schro_params->dec_pic,

+                        avccontext->pix_fmt,

+                        avccontext->width,

+                        avccontext->height);

+    }

+}

+

+static int libschroedinger_decode_frame(AVCodecContext *avccontext,

+                                        void *data, int *data_size,

+                                        const uint8_t *buf, int buf_size)

+{

+

+    FfmpegSchroDecoderParams *p_schro_params = avccontext->priv_data;

+    SchroDecoder *decoder = p_schro_params->decoder;

+    SchroVideoFormat *format;

+    AVPicture *picture = data;

+    SchroBuffer *enc_buf;

+    SchroFrame* frame;

+    int state;

+    int go = 1;

+

+    *data_size = 0;

+

+    if (buf_size>0) {

+        unsigned char *in_buf = av_malloc(buf_size);

+        memcpy (in_buf, buf, buf_size);

+        enc_buf = schro_buffer_new_with_data (in_buf, buf_size);

+        enc_buf->free = libschroedinger_decode_buffer_free;

+        enc_buf->priv = in_buf;

+        /* Push buffer into decoder. */

+        state = schro_decoder_push (decoder, enc_buf);

+        if (state == SCHRO_DECODER_FIRST_ACCESS_UNIT)

+            libschroedinger_handle_first_access_unit(avccontext);

+    } else {

+        if (!p_schro_params->eos_signalled) {

+            state = schro_decoder_push_end_of_stream(decoder);

+            p_schro_params->eos_signalled = 1;

+        }

+    }

+

+    format = p_schro_params->format;

+

+    while (go) {

+        /* Parse data and process result. */

+        state = schro_decoder_wait (decoder);

+        switch (state)

+        {

+        case SCHRO_DECODER_FIRST_ACCESS_UNIT:

+            libschroedinger_handle_first_access_unit (avccontext);

+            break;

+

+        case SCHRO_DECODER_NEED_BITS:

+            /* Need more input data - stop iterating over what we have. */

+            go = 0;

+            break;

+

+        case SCHRO_DECODER_NEED_FRAME:

+            /* Decoder needs a frame - create one and push it in. */

+

+            frame = schro_frame_new_and_alloc(NULL,

+                                              p_schro_params->frame_format,

+                                              format->width,

+                                              format->height);

+            schro_decoder_add_output_picture (decoder, frame);

+            break;

+

+        case SCHRO_DECODER_OK:

+            /* Pull a frame out of the decoder. */

+            frame = schro_decoder_pull (decoder);

+

+            if (frame) {

+                ff_dirac_schro_queue_push_back(

+                                             &p_schro_params->dec_frame_queue,

+                                             frame);

+            }

+            break;

+        case SCHRO_DECODER_EOS:

+            go = 0;

+            p_schro_params->eos_pulled = 1;

+            schro_decoder_reset (decoder);

+            break;

+

+        case SCHRO_DECODER_ERROR:

+            return -1;

+            break;

+        }

+    }

+

+    /* Grab next frame to be returned from the top of the queue. */

+    frame = ff_dirac_schro_queue_pop(&p_schro_params->dec_frame_queue);

+

+    if (frame != NULL) {

+        memcpy (p_schro_params->dec_pic.data[0],

+                frame->components[0].data,

+                frame->components[0].length);

+

+        memcpy (p_schro_params->dec_pic.data[1],

+                frame->components[1].data,

+                frame->components[1].length);

+

+        memcpy (p_schro_params->dec_pic.data[2],

+                frame->components[2].data,

+                frame->components[2].length);

+

+        /* Fill picture with current buffer data from Schroedinger. */

+        avpicture_fill(picture, p_schro_params->dec_pic.data[0],

+                       avccontext->pix_fmt,

+                       avccontext->width, avccontext->height);

+

+        *data_size = sizeof(AVPicture);

+

+        /* Now free the frame resources. */

+        libschroedinger_decode_frame_free (frame);

+    }

+    return buf_size;

+}

+

+

+static int libschroedinger_decode_close(AVCodecContext *avccontext)

+{

+    FfmpegSchroDecoderParams *p_schro_params = avccontext->priv_data;

+    /* Free the decoder. */

+    schro_decoder_free (p_schro_params->decoder);

+    av_freep(&p_schro_params->format);

+

+    avpicture_free (&p_schro_params->dec_pic);

+

+    /* Free data in the output frame queue. */

+    ff_dirac_schro_queue_free (&p_schro_params->dec_frame_queue,

+                               libschroedinger_decode_frame_free);

+

+    return 0 ;

+}

+

+static void libschroedinger_flush (AVCodecContext *avccontext)

+{

+    /* Got a seek request. Free the decoded frames queue and then reset

+     * the decoder */

+    FfmpegSchroDecoderParams *p_schro_params = avccontext->priv_data;

+

+    /* Free data in the output frame queue. */

+    ff_dirac_schro_queue_free (&p_schro_params->dec_frame_queue,

+                               libschroedinger_decode_frame_free);

+

+    ff_dirac_schro_queue_init (&p_schro_params->dec_frame_queue);

+    schro_decoder_reset(p_schro_params->decoder);

+    p_schro_params->eos_pulled = 0;

+    p_schro_params->eos_signalled = 0;

+}

+

+AVCodec libschroedinger_decoder = {

+     "libschroedinger",

+    CODEC_TYPE_VIDEO,

+    CODEC_ID_DIRAC,

+    sizeof(FfmpegSchroDecoderParams),

+    libschroedinger_decode_init,

+    NULL,

+    libschroedinger_decode_close,

+    libschroedinger_decode_frame,

+    CODEC_CAP_DELAY,

+    .flush = libschroedinger_flush

+};

new file mode 100644

@@ -0,0 +1,387 @@

+/*

+ * Dirac encoder support via Schroedinger libraries

+ * Copyright (c) 2008 BBC, Anuradha Suraparaju <asuraparaju at gmail dot com >

+ *

+ * This file is part of FFmpeg.

+ *

+ * FFmpeg is free software; you can redistribute it and/or

+ * modify it under the terms of the GNU Lesser General Public

+ * License as published by the Free Software Foundation; either

+ * version 2.1 of the License, or (at your option) any later version.

+ *

+ * FFmpeg is distributed in the hope that it will be useful,

+ * but WITHOUT ANY WARRANTY; without even the implied warranty of

+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

+ * Lesser General Public License for more details.

+ *

+ * You should have received a copy of the GNU Lesser General Public

+ * License along with FFmpeg; if not, write to the Free Software

+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

+ */

+

+/**

+* @file libschroedingerenc.c

+* Dirac encoder support via libschroedinger-1.0 libraries. More details about

+* the Schroedinger project can be found at http://www.diracvideo.org/.

+* The library implements Dirac Specification Version 2.2

+* (http://dirac.sourceforge.net/specification.html).

+*/

+

+#undef NDEBUG

+#include <assert.h>

+

+#include <schroedinger/schro.h>

+#include <schroedinger/schrodebug.h>

+#include <schroedinger/schrovideoformat.h>

+

+#include "avcodec.h"

+#include "libdirac_libschro.h"

+#include "libschroedinger.h"

+

+

+/** libschroedinger encoder private data */

+typedef struct FfmpegSchroEncoderParams

+{

+    /** Schroedinger video format */

+    SchroVideoFormat *format;

+

+    /** Schroedinger frame format */

+    SchroFrameFormat frame_format;

+

+    /** frame being encoded */

+    AVFrame picture;

+

+    /** frame size */

+    int frame_size;

+

+    /** Schroedinger encoder handle*/

+    SchroEncoder* encoder;

+

+    /** queue storing encoded frames */

+    FfmpegDiracSchroQueue enc_frame_queue;

+

+    /** end of sequence signalled */

+    int eos_signalled;

+

+    /** end of sequence pulled */

+    int eos_pulled;

+} FfmpegSchroEncoderParams;

+

+/**

+* Works out Schro-compatible chroma format.

+*/

+static int SetSchroChromaFormat(AVCodecContext *avccontext)

+{

+    int num_formats = sizeof(ffmpeg_schro_pixel_format_map) /

+                      sizeof(ffmpeg_schro_pixel_format_map[0]);

+    int idx;

+

+    FfmpegSchroEncoderParams* p_schro_params = avccontext->priv_data;

+

+    for (idx = 0; idx < num_formats; ++idx) {

+        if (ffmpeg_schro_pixel_format_map[idx].ff_pix_fmt ==

+                                                       avccontext->pix_fmt) {

+            p_schro_params->format->chroma_format =

+                            ffmpeg_schro_pixel_format_map[idx].schro_pix_fmt;

+            return 0;

+        }

+    }

+

+    av_log (avccontext, AV_LOG_ERROR,

+            "This codec currently only supports planar YUV 4:2:0, 4:2:2"

+            " and 4:4:4 formats.\n");

+

+    return -1;

+}

+

+static int libschroedinger_encode_init(AVCodecContext *avccontext)

+{

+    FfmpegSchroEncoderParams* p_schro_params = avccontext->priv_data;

+    SchroVideoFormatEnum preset;

+

+    /* Initialize the libraries that libschroedinger depends on. */

+    schro_init();

+

+    /* Create an encoder object. */

+    p_schro_params->encoder = schro_encoder_new();

+

+    if (!p_schro_params->encoder) {

+        av_log(avccontext, AV_LOG_ERROR,

+               "Unrecoverable Error: schro_encoder_new failed. ");

+        return -1;

+    }

+

+    /* Initialize the format. */

+    preset = ff_get_schro_video_format_preset(avccontext);

+    p_schro_params->format =

+                    schro_encoder_get_video_format(p_schro_params->encoder);

+    schro_video_format_set_std_video_format (p_schro_params->format, preset);

+    p_schro_params->format->width = avccontext->width;

+    p_schro_params->format->height = avccontext->height;

+

+    if (SetSchroChromaFormat(avccontext) == -1)

+        return -1;

+

+    if (ff_get_schro_frame_format(p_schro_params->format->chroma_format,

+                                  &p_schro_params->frame_format) == -1) {

+        av_log (avccontext, AV_LOG_ERROR,

+                "This codec currently supports only planar YUV 4:2:0, 4:2:2"

+                " and 4:4:4 formats.\n");

+        return -1;

+    }

+

+    p_schro_params->format->frame_rate_numerator   = avccontext->time_base.den;

+    p_schro_params->format->frame_rate_denominator = avccontext->time_base.num;

+

+    p_schro_params->frame_size = avpicture_get_size(avccontext->pix_fmt,

+                                                    avccontext->width,

+                                                    avccontext->height);

+

+    avccontext->coded_frame = &p_schro_params->picture;

+

+    if (avccontext->gop_size == 0){

+        schro_encoder_setting_set_double (p_schro_params->encoder,

+                                          "gop_structure",

+                                          SCHRO_ENCODER_GOP_INTRA_ONLY);

+    }

+    else {

+        schro_encoder_setting_set_double (p_schro_params->encoder,

+                                          "gop_structure",

+                                          SCHRO_ENCODER_GOP_BIREF);

+        avccontext->has_b_frames = 1;

+    }

+

+    /* FIXME - Need to handle SCHRO_ENCODER_RATE_CONTROL_LOW_DELAY. */

+    if (avccontext->flags & CODEC_FLAG_QSCALE) {

+        if (avccontext->global_quality == 0) {

+            /* lossless coding */

+            schro_encoder_setting_set_double (p_schro_params->encoder,

+                                          "rate_control",

+                                          SCHRO_ENCODER_RATE_CONTROL_LOSSLESS);

+        } else {

+            int noise_threshold;

+            schro_encoder_setting_set_double (p_schro_params->encoder,

+                          "rate_control",

+                          SCHRO_ENCODER_RATE_CONTROL_CONSTANT_NOISE_THRESHOLD);

+

+            noise_threshold = avccontext->global_quality/FF_QP2LAMBDA;

+            if (noise_threshold > 100)

+                noise_threshold = 100;

+            schro_encoder_setting_set_double (p_schro_params->encoder,

+                                              "noise_threshold",

+                                              noise_threshold);

+        }

+    }

+    else {

+        schro_encoder_setting_set_double ( p_schro_params->encoder,

+                               "rate_control",

+                               SCHRO_ENCODER_RATE_CONTROL_CONSTANT_BITRATE);

+

+        schro_encoder_setting_set_double (p_schro_params->encoder,

+                                          "bitrate",

+                                          avccontext->bit_rate);

+

+    }

+

+    if (avccontext->flags & CODEC_FLAG_INTERLACED_ME) {

+        /* All material can be coded as interlaced or progressive

+           irrespective of the type of source material. */

+        schro_encoder_setting_set_double (p_schro_params->encoder,

+                                            "interlaced_coding", 1);

+    }

+

+    /* FIXME: Signal range hardcoded to 8-bit data until both libschroedinger

+     * and libdirac support other bit-depth data. */

+    schro_video_format_set_std_signal_range(p_schro_params->format,

+                                            SCHRO_SIGNAL_RANGE_8BIT_VIDEO);

+

+

+    /* Hardcode motion vector precision to quarter pixel. */

+    schro_encoder_setting_set_double (p_schro_params->encoder,

+                                      "mv_precision", 2);

+

+    /* Set the encoder format. */

+    schro_encoder_set_video_format(p_schro_params->encoder,

+                                   p_schro_params->format);

+

+    /* Set the debug level. */

+    schro_debug_set_level (avccontext->debug);

+

+    schro_encoder_start (p_schro_params->encoder);

+

+    /* Initialize the encoded frame queue. */

+    ff_dirac_schro_queue_init (&p_schro_params->enc_frame_queue);

+    return 0 ;

+}

+

+static SchroFrame *libschroedinger_frame_from_data (AVCodecContext *avccontext,

+                                                    void *in_data)

+{

+    FfmpegSchroEncoderParams* p_schro_params = avccontext->priv_data;

+    SchroFrame *in_frame;

+    /* Input line size may differ from what the codec supports. Especially

+     * when transcoding from one format to another. So use avpicture_layout

+     * to copy the frame. */

+    in_frame = schro_frame_new_and_alloc (NULL,

+                                          p_schro_params->frame_format,

+                                          p_schro_params->format->width,

+                                          p_schro_params->format->height);

+

+    avpicture_layout ((AVPicture *)in_data, avccontext->pix_fmt,

+                      avccontext->width, avccontext->height,

+                      in_frame->components[0].data,

+                      p_schro_params->frame_size);

+

+    return in_frame;

+}

+

+static void SchroedingerFreeFrame(void *data)

+{

+    FfmpegDiracSchroEncodedFrame *enc_frame = data;

+

+    av_freep (&(enc_frame->p_encbuf));

+    av_free(enc_frame);

+}

+

+static int libschroedinger_encode_frame(AVCodecContext *avccontext,

+                                        unsigned char *frame,

+                                        int buf_size, void *data)

+{

+    int enc_size = 0;

+    FfmpegSchroEncoderParams* p_schro_params = avccontext->priv_data;

+    SchroEncoder *encoder = p_schro_params->encoder;

+    struct FfmpegDiracSchroEncodedFrame* p_frame_output = NULL;

+    int go = 1;

+    SchroBuffer *enc_buf;

+    int presentation_frame;

+    int parse_code;

+

+    if(data == NULL) {

+        /* Push end of sequence if not already signalled. */

+        if (!p_schro_params->eos_signalled) {

+            schro_encoder_end_of_stream(encoder);

+            p_schro_params->eos_signalled = 1;

+        }

+    } else {

+        /* Allocate frame data to schro input buffer. */

+        SchroFrame *in_frame = libschroedinger_frame_from_data (avccontext,

+                                                                data);

+        /* Load next frame. */

+        schro_encoder_push_frame(encoder, in_frame);

+    }

+

+    if (p_schro_params->eos_pulled)

+        go = 0;

+

+    /* Now check to see if we have any output from the encoder. */

+    while (go) {

+        SchroStateEnum  state;

+        state = schro_encoder_wait(encoder);

+        switch (state)

+        {

+        case SCHRO_STATE_HAVE_BUFFER:

+        case SCHRO_STATE_END_OF_STREAM:

+            enc_buf = schro_encoder_pull (encoder,

+                                          &presentation_frame);

+            assert (enc_buf->length > 0);

+            assert (enc_buf->length <= buf_size);

+

+            /* Create output frame. */

+            p_frame_output = av_mallocz(sizeof(FfmpegDiracSchroEncodedFrame));

+            /* Set output data. */

+            p_frame_output->size     = enc_buf->length;

+            p_frame_output->p_encbuf = av_malloc(enc_buf->length);

+            memcpy(p_frame_output->p_encbuf, enc_buf->data, enc_buf->length);

+

+            parse_code = enc_buf->data[4];

+            if (SCHRO_PARSE_CODE_IS_INTRA(parse_code) &&

+                SCHRO_PARSE_CODE_IS_REFERENCE(parse_code)) {

+                p_frame_output->key_frame = 1;

+            }

+

+            /* Parse the coded frame number from the bitstream. Bytes 14

+             * through 17 represesent the frame number. */

+            if (SCHRO_PARSE_CODE_IS_PICTURE(parse_code))

+            {

+                assert (enc_buf->length >= 17);

+                p_frame_output->frame_num = (enc_buf->data[13] << 24) +

+                                            (enc_buf->data[14] << 16) +

+                                            (enc_buf->data[15] <<  8) +

+                                             enc_buf->data[16];

+            }

+

+            ff_dirac_schro_queue_push_back (&p_schro_params->enc_frame_queue,

+                                            p_frame_output);

+            schro_buffer_unref (enc_buf);

+

+            if (state == SCHRO_STATE_END_OF_STREAM) {

+                p_schro_params->eos_pulled = 1;

+                   go = 0;

+            }

+            break;

+

+        case SCHRO_STATE_NEED_FRAME:

+            go = 0;

+            break;

+

+        case SCHRO_STATE_AGAIN:

+            break;

+

+        default:

+            av_log(avccontext, AV_LOG_ERROR, "Unknown Schro Encoder state\n");

+            return -1;

+        }

+    }

+

+    /* Copy 'next' frame in queue. */

+    p_frame_output =

+               ff_dirac_schro_queue_pop (&p_schro_params->enc_frame_queue);

+

+    if (p_frame_output == NULL)

+        return 0;

+

+    memcpy(frame, p_frame_output->p_encbuf, p_frame_output->size);

+    avccontext->coded_frame->key_frame = p_frame_output->key_frame;

+    /* Use the frame number of the encoded frame as the pts. It is OK to

+     * do so since Dirac is a constant frame rate codec. It expects input

+     * to be of constant frame rate. */

+    avccontext->coded_frame->pts = p_frame_output->frame_num;

+    enc_size = p_frame_output->size;

+

+    /* free frame */

+    SchroedingerFreeFrame (p_frame_output);

+

+    return enc_size;

+}

+

+

+static int libschroedinger_encode_close(AVCodecContext *avccontext)