lavc: drop libdirac encoder.

Libschroedinger is the preferred way to encode dirac video now, it
produces better output and has a nicer API.

3 files changed, 1 insertions, 407 deletions

diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index a98ff5b52a..b177450563 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -573,7 +573,6 @@ OBJS-$(CONFIG_WTV_DEMUXER)             += mpeg4audio.o mpegaudiodata.o
 
 # external codec libraries
 OBJS-$(CONFIG_LIBDIRAC_DECODER)           += libdiracdec.o
-OBJS-$(CONFIG_LIBDIRAC_ENCODER)           += libdiracenc.o libdirac_libschro.o
 OBJS-$(CONFIG_LIBFAAC_ENCODER)            += libfaac.o
 OBJS-$(CONFIG_LIBGSM_DECODER)             += libgsm.o
 OBJS-$(CONFIG_LIBGSM_ENCODER)             += libgsm.o
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index c5a96ebc30..3d3289c4ee 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -371,7 +371,7 @@ void avcodec_register_all(void)
     REGISTER_ENCDEC  (XSUB, xsub);
 
     /* external libraries */
-    REGISTER_ENCDEC  (LIBDIRAC, libdirac);
+    REGISTER_DECODER (LIBDIRAC, libdirac);
     REGISTER_ENCODER (LIBFAAC, libfaac);
     REGISTER_ENCDEC  (LIBGSM, libgsm);
     REGISTER_ENCDEC  (LIBGSM_MS, libgsm_ms);
diff --git a/libavcodec/libdiracenc.c b/libavcodec/libdiracenc.c
deleted file mode 100644
index 156ba57718..0000000000
--- a/libavcodec/libdiracenc.c
+++ /dev/null
@@ -1,405 +0,0 @@
-/*
- * Dirac encoding support via libdirac library
- * Copyright (c) 2005 BBC, Andrew Kennedy <dirac at rd dot bbc dot co dot uk>
- * Copyright (c) 2006-2008 BBC, Anuradha Suraparaju <asuraparaju at gmail dot com >
- *
- * This file is part of Libav.
- *
- * Libav 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.
- *
- * Libav 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 Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
-* @file
-* Dirac encoding support via libdirac library; more details about the
-* Dirac project can be found at http://dirac.sourceforge.net/.
-* The libdirac_encoder library implements Dirac specification version 2.2
-* (http://dirac.sourceforge.net/specification.html).
-*/
-
-#include "libdirac_libschro.h"
-#include "libdirac.h"
-
-#undef NDEBUG
-#include <assert.h>
-
-
-#include <libdirac_encoder/dirac_encoder.h>
-
-/** Dirac encoder private data */
-typedef struct DiracEncoderParams {
-    /** Dirac encoder context */
-    dirac_encoder_context_t enc_ctx;
-
-    /** frame being encoded */
-    AVFrame picture;
-
-    /** frame size */
-    int frame_size;
-
-    /** Dirac encoder handle */
-    dirac_encoder_t* p_encoder;
-
-    /** input frame buffer */
-    unsigned char *p_in_frame_buf;
-
-    /** buffer to store encoder output before writing it to the frame queue */
-    unsigned char *enc_buf;
-
-    /** size of encoder buffer */
-    int enc_buf_size;
-
-    /** queue storing encoded frames */
-    DiracSchroQueue enc_frame_queue;
-
-    /** end of sequence signalled by user, 0 - false, 1 - true */
-    int eos_signalled;
-
-    /** end of sequence returned by encoder, 0 - false, 1 - true */
-    int eos_pulled;
-} DiracEncoderParams;
-
-/**
-* Works out Dirac-compatible chroma format.
-*/
-static dirac_chroma_t GetDiracChromaFormat(enum PixelFormat ff_pix_fmt)
-{
-    int num_formats = sizeof(dirac_pixel_format_map) /
-                      sizeof(dirac_pixel_format_map[0]);
-    int idx;
-
-    for (idx = 0; idx < num_formats; ++idx)
-        if (dirac_pixel_format_map[idx].ff_pix_fmt == ff_pix_fmt)
-            return dirac_pixel_format_map[idx].dirac_pix_fmt;
-    return formatNK;
-}
-
-/**
-* Dirac 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 VideoFormat ff_dirac_video_formats[]={
-    VIDEO_FORMAT_CUSTOM           ,
-    VIDEO_FORMAT_QSIF525          ,
-    VIDEO_FORMAT_QCIF             ,
-    VIDEO_FORMAT_SIF525           ,
-    VIDEO_FORMAT_CIF              ,
-    VIDEO_FORMAT_4SIF525          ,
-    VIDEO_FORMAT_4CIF             ,
-    VIDEO_FORMAT_SD_480I60        ,
-    VIDEO_FORMAT_SD_576I50        ,
-    VIDEO_FORMAT_HD_720P60        ,
-    VIDEO_FORMAT_HD_720P50        ,
-    VIDEO_FORMAT_HD_1080I60       ,
-    VIDEO_FORMAT_HD_1080I50       ,
-    VIDEO_FORMAT_HD_1080P60       ,
-    VIDEO_FORMAT_HD_1080P50       ,
-    VIDEO_FORMAT_DIGI_CINEMA_2K24 ,
-    VIDEO_FORMAT_DIGI_CINEMA_4K24 ,
-};
-
-/**
-* Returns the video format preset matching the input video dimensions and
-* time base.
-*/
-static VideoFormat GetDiracVideoFormatPreset(AVCodecContext *avccontext)
-{
-    unsigned int num_formats = sizeof(ff_dirac_video_formats) /
-                               sizeof(ff_dirac_video_formats[0]);
-
-    unsigned int idx = ff_dirac_schro_get_video_format_idx(avccontext);
-
-    return (idx < num_formats) ?
-                 ff_dirac_video_formats[idx] : VIDEO_FORMAT_CUSTOM;
-}
-
-static av_cold int libdirac_encode_init(AVCodecContext *avccontext)
-{
-
-    DiracEncoderParams* p_dirac_params = avccontext->priv_data;
-    int no_local = 1;
-    int verbose  = avccontext->debug;
-    VideoFormat preset;
-
-    /* get Dirac preset */
-    preset = GetDiracVideoFormatPreset(avccontext);
-
-    /* initialize the encoder context */
-    dirac_encoder_context_init(&p_dirac_params->enc_ctx, preset);
-
-    p_dirac_params->enc_ctx.src_params.chroma = GetDiracChromaFormat(avccontext->pix_fmt);
-
-    if (p_dirac_params->enc_ctx.src_params.chroma == formatNK) {
-        av_log(avccontext, AV_LOG_ERROR,
-               "Unsupported pixel format %d. This codec supports only "
-               "Planar YUV formats (yuv420p, yuv422p, yuv444p\n",
-               avccontext->pix_fmt);
-        return -1;
-    }
-
-    p_dirac_params->enc_ctx.src_params.frame_rate.numerator   = avccontext->time_base.den;
-    p_dirac_params->enc_ctx.src_params.frame_rate.denominator = avccontext->time_base.num;
-
-    p_dirac_params->enc_ctx.src_params.width  = avccontext->width;
-    p_dirac_params->enc_ctx.src_params.height = avccontext->height;
-
-    p_dirac_params->frame_size = avpicture_get_size(avccontext->pix_fmt,
-                                                    avccontext->width,
-                                                    avccontext->height);
-
-    avccontext->coded_frame = &p_dirac_params->picture;
-
-    if (no_local) {
-        p_dirac_params->enc_ctx.decode_flag = 0;
-        p_dirac_params->enc_ctx.instr_flag  = 0;
-    } else {
-        p_dirac_params->enc_ctx.decode_flag = 1;
-        p_dirac_params->enc_ctx.instr_flag  = 1;
-    }
-
-    /* Intra-only sequence */
-    if (!avccontext->gop_size) {
-        p_dirac_params->enc_ctx.enc_params.num_L1 = 0;
-        if (avccontext->coder_type == FF_CODER_TYPE_VLC)
-            p_dirac_params->enc_ctx.enc_params.using_ac = 0;
-    } else
-        avccontext->has_b_frames = 1;
-
-    if (avccontext->flags & CODEC_FLAG_QSCALE) {
-        if (avccontext->global_quality) {
-            p_dirac_params->enc_ctx.enc_params.qf = avccontext->global_quality
-                                                    / (FF_QP2LAMBDA * 10.0);
-            /* if it is not default bitrate then send target rate. */
-            if (avccontext->bit_rate >= 1000 &&
-                avccontext->bit_rate != 200000)
-                p_dirac_params->enc_ctx.enc_params.trate = avccontext->bit_rate
-                                                           / 1000;
-        } else
-            p_dirac_params->enc_ctx.enc_params.lossless = 1;
-    } else if (avccontext->bit_rate >= 1000)
-        p_dirac_params->enc_ctx.enc_params.trate = avccontext->bit_rate / 1000;
-
-    if ((preset > VIDEO_FORMAT_QCIF || preset < VIDEO_FORMAT_QSIF525) &&
-         avccontext->bit_rate == 200000)
-        p_dirac_params->enc_ctx.enc_params.trate = 0;
-
-    if (avccontext->flags & CODEC_FLAG_INTERLACED_ME)
-        /* all material can be coded as interlaced or progressive
-         * irrespective of the type of source material */
-        p_dirac_params->enc_ctx.enc_params.picture_coding_mode = 1;
-
-    p_dirac_params->p_encoder = dirac_encoder_init(&p_dirac_params->enc_ctx,
-                                                   verbose);
-
-    if (!p_dirac_params->p_encoder) {
-        av_log(avccontext, AV_LOG_ERROR,
-               "Unrecoverable Error: dirac_encoder_init failed. ");
-        return EXIT_FAILURE;
-    }
-
-    /* allocate enough memory for the incoming data */
-    p_dirac_params->p_in_frame_buf = av_malloc(p_dirac_params->frame_size);
-
-    /* initialize the encoded frame queue */
-    ff_dirac_schro_queue_init(&p_dirac_params->enc_frame_queue);
-
-    return 0;
-}
-
-static void DiracFreeFrame(void *data)
-{
-    DiracSchroEncodedFrame *enc_frame = data;
-
-    av_freep(&enc_frame->p_encbuf);
-    av_free(enc_frame);
-}
-
-static int libdirac_encode_frame(AVCodecContext *avccontext,
-                                 unsigned char *frame,
-                                 int buf_size, void *data)
-{
-    int enc_size = 0;
-    dirac_encoder_state_t state;
-    DiracEncoderParams     *p_dirac_params      = avccontext->priv_data;
-    DiracSchroEncodedFrame *p_frame_output      = NULL;
-    DiracSchroEncodedFrame *p_next_output_frame = NULL;
-    int go = 1;
-    int last_frame_in_sequence = 0;
-
-    if (!data) {
-        /* push end of sequence if not already signalled */
-        if (!p_dirac_params->eos_signalled) {
-            dirac_encoder_end_sequence(p_dirac_params->p_encoder);
-            p_dirac_params->eos_signalled = 1;
-        }
-    } else {
-
-        /* Allocate frame data to Dirac input buffer.
-         * 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. */
-        avpicture_layout((AVPicture *)data, avccontext->pix_fmt,
-                         avccontext->width, avccontext->height,
-                         p_dirac_params->p_in_frame_buf,
-                         p_dirac_params->frame_size);
-
-        /* load next frame */
-        if (dirac_encoder_load(p_dirac_params->p_encoder,
-                               p_dirac_params->p_in_frame_buf,
-                               p_dirac_params->frame_size) < 0) {
-            av_log(avccontext, AV_LOG_ERROR, "Unrecoverable Encoder Error."
-                   " dirac_encoder_load failed...\n");
-            return -1;
-        }
-    }
-
-    if (p_dirac_params->eos_pulled)
-        go = 0;
-
-    while (go) {
-        p_dirac_params->p_encoder->enc_buf.buffer = frame;
-        p_dirac_params->p_encoder->enc_buf.size   = buf_size;
-        /* process frame */
-        state = dirac_encoder_output(p_dirac_params->p_encoder);
-
-        switch (state) {
-        case ENC_STATE_AVAIL:
-        case ENC_STATE_EOS:
-            assert(p_dirac_params->p_encoder->enc_buf.size > 0);
-
-            /* All non-frame data is prepended to actual frame data to
-             * be able to set the pts correctly. So we don't write data
-             * to the frame output queue until we actually have a frame
-             */
-
-            p_dirac_params->enc_buf = av_realloc(p_dirac_params->enc_buf,
-                                                 p_dirac_params->enc_buf_size +
-                                                 p_dirac_params->p_encoder->enc_buf.size);
-            memcpy(p_dirac_params->enc_buf + p_dirac_params->enc_buf_size,
-                   p_dirac_params->p_encoder->enc_buf.buffer,
-                   p_dirac_params->p_encoder->enc_buf.size);
-
-            p_dirac_params->enc_buf_size += p_dirac_params->p_encoder->enc_buf.size;
-
-            if (state == ENC_STATE_EOS) {
-                p_dirac_params->eos_pulled = 1;
-                go = 0;
-            }
-
-            /* If non-frame data, don't output it until it we get an
-             * encoded frame back from the encoder. */
-            if (p_dirac_params->p_encoder->enc_pparams.pnum == -1)
-                break;
-
-            /* create output frame */
-            p_frame_output = av_mallocz(sizeof(DiracSchroEncodedFrame));
-            /* set output data */
-            p_frame_output->size      = p_dirac_params->enc_buf_size;
-            p_frame_output->p_encbuf  = p_dirac_params->enc_buf;
-            p_frame_output->frame_num = p_dirac_params->p_encoder->enc_pparams.pnum;
-
-            if (p_dirac_params->p_encoder->enc_pparams.ptype == INTRA_PICTURE &&
-                p_dirac_params->p_encoder->enc_pparams.rtype == REFERENCE_PICTURE)
-                p_frame_output->key_frame = 1;
-
-            ff_dirac_schro_queue_push_back(&p_dirac_params->enc_frame_queue,
-                                           p_frame_output);
-
-            p_dirac_params->enc_buf_size = 0;
-            p_dirac_params->enc_buf      = NULL;
-            break;
-
-        case ENC_STATE_BUFFER:
-            go = 0;
-            break;
-
-        case ENC_STATE_INVALID:
-            av_log(avccontext, AV_LOG_ERROR,
-                   "Unrecoverable Dirac Encoder Error. Quitting...\n");
-            return -1;
-
-        default:
-            av_log(avccontext, AV_LOG_ERROR, "Unknown Dirac Encoder state\n");
-            return -1;
-        }
-    }
-
-    /* copy 'next' frame in queue */
-
-    if (p_dirac_params->enc_frame_queue.size == 1 && p_dirac_params->eos_pulled)
-        last_frame_in_sequence = 1;
-
-    p_next_output_frame = ff_dirac_schro_queue_pop(&p_dirac_params->enc_frame_queue);
-
-    if (!p_next_output_frame)
-        return 0;
-
-    memcpy(frame, p_next_output_frame->p_encbuf, p_next_output_frame->size);
-    avccontext->coded_frame->key_frame = p_next_output_frame->key_frame;
-    /* Use the frame number of the encoded frame as the pts. It is OK to do
-     * so since Dirac is a constant framerate codec. It expects input to be
-     * of constant framerate. */
-    avccontext->coded_frame->pts = p_next_output_frame->frame_num;
-    enc_size = p_next_output_frame->size;
-
-    /* Append the end of sequence information to the last frame in the
-     * sequence. */
-    if (last_frame_in_sequence && p_dirac_params->enc_buf_size > 0) {
-        memcpy(frame + enc_size, p_dirac_params->enc_buf,
-               p_dirac_params->enc_buf_size);
-        enc_size += p_dirac_params->enc_buf_size;
-        av_freep(&p_dirac_params->enc_buf);
-        p_dirac_params->enc_buf_size = 0;
-    }
-
-    /* free frame */
-    DiracFreeFrame(p_next_output_frame);
-
-    return enc_size;
-}
-
-static av_cold int libdirac_encode_close(AVCodecContext *avccontext)
-{
-    DiracEncoderParams *p_dirac_params = avccontext->priv_data;
-
-    /* close the encoder */
-    dirac_encoder_close(p_dirac_params->p_encoder);
-
-    /* free data in the output frame queue */
-    ff_dirac_schro_queue_free(&p_dirac_params->enc_frame_queue,
-                              DiracFreeFrame);
-
-    /* free the encoder buffer */
-    if (p_dirac_params->enc_buf_size)
-        av_freep(&p_dirac_params->enc_buf);
-
-    /* free the input frame buffer */
-    av_freep(&p_dirac_params->p_in_frame_buf);
-
-    return 0;
-}
-
-
-AVCodec ff_libdirac_encoder = {
-    .name           = "libdirac",
-    .type           = AVMEDIA_TYPE_VIDEO,
-    .id             = CODEC_ID_DIRAC,
-    .priv_data_size = sizeof(DiracEncoderParams),
-    .init           = libdirac_encode_init,
-    .encode         = libdirac_encode_frame,
-    .close          = libdirac_encode_close,
-   .capabilities = CODEC_CAP_DELAY,
-   .pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_NONE},
-   .long_name = NULL_IF_CONFIG_SMALL("libdirac Dirac 2.2"),
-};