Add codecs to librbcodec.

Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97
Reviewed-on: http://gerrit.rockbox.org/137
Reviewed-by: Nils Wallménius <nils@rockbox.org>
Tested-by: Nils Wallménius <nils@rockbox.org>

1 files changed, 0 insertions, 1188 deletions

diff --git a/apps/codecs/libwmavoice/utils.c b/apps/codecs/libwmavoice/utils.c
deleted file mode 100644
index ad098f4..0000000
--- a/apps/codecs/libwmavoice/utils.c
+++ /dev/null
@@ -1,1188 +0,0 @@
-/*
- * utils for libavcodec
- * Copyright (c) 2001 Fabrice Bellard
- * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
- *
- * 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
- * utils.
- */
-
-//#include "libavutil/avstring.h"
-//#include "libavutil/integer.h"
-//#include "libavutil/crc.h"
-//#include "libavutil/pixdesc.h"
-//#include "libavcore/imgutils.h"
-#include "avcodec.h"
-//#include "dsputil.h"
-//#include "opt.h"
-//#include "imgconvert.h"
-//#include "audioconvert.h"
-#include "internal.h"
-#include <stdlib.h>
-#include <stdarg.h>
-#include <limits.h>
-#include <float.h>
-
-#if 0
-static int volatile entangled_thread_counter=0;
-int (*ff_lockmgr_cb)(void **mutex, enum AVLockOp op);
-static void *codec_mutex;
-
-void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size)
-{
-    if(min_size < *size)
-        return ptr;
-
-    *size= FFMAX(17*min_size/16 + 32, min_size);
-
-    ptr= av_realloc(ptr, *size);
-    if(!ptr) //we could set this to the unmodified min_size but this is safer if the user lost the ptr and uses NULL now
-        *size= 0;
-
-    return ptr;
-}
-
-void av_fast_malloc(void *ptr, unsigned int *size, unsigned int min_size)
-{
-    void **p = ptr;
-    if (min_size < *size)
-        return;
-    *size= FFMAX(17*min_size/16 + 32, min_size);
-    av_free(*p);
-    *p = av_malloc(*size);
-    if (!*p) *size = 0;
-}
-
-/* encoder management */
-static AVCodec *first_avcodec = NULL;
-
-AVCodec *av_codec_next(AVCodec *c){
-    if(c) return c->next;
-    else  return first_avcodec;
-}
-
-void avcodec_register(AVCodec *codec)
-{
-    AVCodec **p;
-    avcodec_init();
-    p = &first_avcodec;
-    while (*p != NULL) p = &(*p)->next;
-    *p = codec;
-    codec->next = NULL;
-}
-
-#if LIBAVCODEC_VERSION_MAJOR < 53
-void register_avcodec(AVCodec *codec)
-{
-    avcodec_register(codec);
-}
-#endif
-
-unsigned avcodec_get_edge_width(void)
-{
-    return EDGE_WIDTH;
-}
-
-void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
-    s->coded_width = width;
-    s->coded_height= height;
-    s->width = -((-width )>>s->lowres);
-    s->height= -((-height)>>s->lowres);
-}
-
-typedef struct InternalBuffer{
-    int last_pic_num;
-    uint8_t *base[4];
-    uint8_t *data[4];
-    int linesize[4];
-    int width, height;
-    enum PixelFormat pix_fmt;
-}InternalBuffer;
-
-#define INTERNAL_BUFFER_SIZE 32
-
-void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, int linesize_align[4]){
-    int w_align= 1;
-    int h_align= 1;
-
-    switch(s->pix_fmt){
-    case PIX_FMT_YUV420P:
-    case PIX_FMT_YUYV422:
-    case PIX_FMT_UYVY422:
-    case PIX_FMT_YUV422P:
-    case PIX_FMT_YUV440P:
-    case PIX_FMT_YUV444P:
-    case PIX_FMT_GRAY8:
-    case PIX_FMT_GRAY16BE:
-    case PIX_FMT_GRAY16LE:
-    case PIX_FMT_YUVJ420P:
-    case PIX_FMT_YUVJ422P:
-    case PIX_FMT_YUVJ440P:
-    case PIX_FMT_YUVJ444P:
-    case PIX_FMT_YUVA420P:
-        w_align= 16; //FIXME check for non mpeg style codecs and use less alignment
-        h_align= 16;
-        if(s->codec_id == CODEC_ID_MPEG2VIDEO || s->codec_id == CODEC_ID_MJPEG || s->codec_id == CODEC_ID_AMV || s->codec_id == CODEC_ID_THP)
-            h_align= 32; // interlaced is rounded up to 2 MBs
-        break;
-    case PIX_FMT_YUV411P:
-    case PIX_FMT_UYYVYY411:
-        w_align=32;
-        h_align=8;
-        break;
-    case PIX_FMT_YUV410P:
-        if(s->codec_id == CODEC_ID_SVQ1){
-            w_align=64;
-            h_align=64;
-        }
-    case PIX_FMT_RGB555:
-        if(s->codec_id == CODEC_ID_RPZA){
-            w_align=4;
-            h_align=4;
-        }
-    case PIX_FMT_PAL8:
-    case PIX_FMT_BGR8:
-    case PIX_FMT_RGB8:
-        if(s->codec_id == CODEC_ID_SMC){
-            w_align=4;
-            h_align=4;
-        }
-        break;
-    case PIX_FMT_BGR24:
-        if((s->codec_id == CODEC_ID_MSZH) || (s->codec_id == CODEC_ID_ZLIB)){
-            w_align=4;
-            h_align=4;
-        }
-        break;
-    default:
-        w_align= 1;
-        h_align= 1;
-        break;
-    }
-
-    *width = FFALIGN(*width , w_align);
-    *height= FFALIGN(*height, h_align);
-    if(s->codec_id == CODEC_ID_H264)
-        *height+=2; // some of the optimized chroma MC reads one line too much
-
-    linesize_align[0] =
-    linesize_align[1] =
-    linesize_align[2] =
-    linesize_align[3] = STRIDE_ALIGN;
-//STRIDE_ALIGN is 8 for SSE* but this does not work for SVQ1 chroma planes
-//we could change STRIDE_ALIGN to 16 for x86/sse but it would increase the
-//picture size unneccessarily in some cases. The solution here is not
-//pretty and better ideas are welcome!
-#if HAVE_MMX
-    if(s->codec_id == CODEC_ID_SVQ1 || s->codec_id == CODEC_ID_VP5 ||
-       s->codec_id == CODEC_ID_VP6 || s->codec_id == CODEC_ID_VP6F ||
-       s->codec_id == CODEC_ID_VP6A) {
-        linesize_align[0] =
-        linesize_align[1] =
-        linesize_align[2] = 16;
-    }
-#endif
-}
-
-void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
-    int chroma_shift = av_pix_fmt_descriptors[s->pix_fmt].log2_chroma_w;
-    int linesize_align[4];
-    int align;
-    avcodec_align_dimensions2(s, width, height, linesize_align);
-    align = FFMAX(linesize_align[0], linesize_align[3]);
-    linesize_align[1] <<= chroma_shift;
-    linesize_align[2] <<= chroma_shift;
-    align = FFMAX3(align, linesize_align[1], linesize_align[2]);
-    *width=FFALIGN(*width, align);
-}
-
-#if LIBAVCODEC_VERSION_MAJOR < 53
-int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h){
-    return av_check_image_size(w, h, 0, av_log_ctx);
-}
-#endif
-
-int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
-    int i;
-    int w= s->width;
-    int h= s->height;
-    InternalBuffer *buf;
-    int *picture_number;
-
-    if(pic->data[0]!=NULL) {
-        av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
-        return -1;
-    }
-    if(s->internal_buffer_count >= INTERNAL_BUFFER_SIZE) {
-        av_log(s, AV_LOG_ERROR, "internal_buffer_count overflow (missing release_buffer?)\n");
-        return -1;
-    }
-
-    if(av_check_image_size(w, h, 0, s))
-        return -1;
-
-    if(s->internal_buffer==NULL){
-        s->internal_buffer= av_mallocz((INTERNAL_BUFFER_SIZE+1)*sizeof(InternalBuffer));
-    }
-#if 0
-    s->internal_buffer= av_fast_realloc(
-        s->internal_buffer,
-        &s->internal_buffer_size,
-        sizeof(InternalBuffer)*FFMAX(99,  s->internal_buffer_count+1)/*FIXME*/
-        );
-#endif
-
-    buf= &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
-    picture_number= &(((InternalBuffer*)s->internal_buffer)[INTERNAL_BUFFER_SIZE]).last_pic_num; //FIXME ugly hack
-    (*picture_number)++;
-
-    if(buf->base[0] && (buf->width != w || buf->height != h || buf->pix_fmt != s->pix_fmt)){
-        for(i=0; i<4; i++){
-            av_freep(&buf->base[i]);
-            buf->data[i]= NULL;
-        }
-    }
-
-    if(buf->base[0]){
-        pic->age= *picture_number - buf->last_pic_num;
-        buf->last_pic_num= *picture_number;
-    }else{
-        int h_chroma_shift, v_chroma_shift;
-        int size[4] = {0};
-        int tmpsize;
-        int unaligned;
-        AVPicture picture;
-        int stride_align[4];
-
-        avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
-
-        avcodec_align_dimensions2(s, &w, &h, stride_align);
-
-        if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
-            w+= EDGE_WIDTH*2;
-            h+= EDGE_WIDTH*2;
-        }
-
-        do {
-            // NOTE: do not align linesizes individually, this breaks e.g. assumptions
-            // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
-            av_fill_image_linesizes(picture.linesize, s->pix_fmt, w);
-            // increase alignment of w for next try (rhs gives the lowest bit set in w)
-            w += w & ~(w-1);
-
-            unaligned = 0;
-            for (i=0; i<4; i++){
-                unaligned |= picture.linesize[i] % stride_align[i];
-            }
-        } while (unaligned);
-
-        tmpsize = av_fill_image_pointers(picture.data, s->pix_fmt, h, NULL, picture.linesize);
-        if (tmpsize < 0)
-            return -1;
-
-        for (i=0; i<3 && picture.data[i+1]; i++)
-            size[i] = picture.data[i+1] - picture.data[i];
-        size[i] = tmpsize - (picture.data[i] - picture.data[0]);
-
-        buf->last_pic_num= -256*256*256*64;
-        memset(buf->base, 0, sizeof(buf->base));
-        memset(buf->data, 0, sizeof(buf->data));
-
-        for(i=0; i<4 && size[i]; i++){
-            const int h_shift= i==0 ? 0 : h_chroma_shift;
-            const int v_shift= i==0 ? 0 : v_chroma_shift;
-
-            buf->linesize[i]= picture.linesize[i];
-
-            buf->base[i]= av_malloc(size[i]+16); //FIXME 16
-            if(buf->base[i]==NULL) return -1;
-            memset(buf->base[i], 128, size[i]);
-
-            // no edge if EDGE EMU or not planar YUV
-            if((s->flags&CODEC_FLAG_EMU_EDGE) || !size[2])
-                buf->data[i] = buf->base[i];
-            else
-                buf->data[i] = buf->base[i] + FFALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift), stride_align[i]);
-        }
-        if(size[1] && !size[2])
-            ff_set_systematic_pal((uint32_t*)buf->data[1], s->pix_fmt);
-        buf->width  = s->width;
-        buf->height = s->height;
-        buf->pix_fmt= s->pix_fmt;
-        pic->age= 256*256*256*64;
-    }
-    pic->type= FF_BUFFER_TYPE_INTERNAL;
-
-    for(i=0; i<4; i++){
-        pic->base[i]= buf->base[i];
-        pic->data[i]= buf->data[i];
-        pic->linesize[i]= buf->linesize[i];
-    }
-    s->internal_buffer_count++;
-
-    pic->reordered_opaque= s->reordered_opaque;
-
-    if(s->debug&FF_DEBUG_BUFFERS)
-        av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
-
-    return 0;
-}
-
-void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
-    int i;
-    InternalBuffer *buf, *last;
-
-    assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
-    assert(s->internal_buffer_count);
-
-    buf = NULL; /* avoids warning */
-    for(i=0; i<s->internal_buffer_count; i++){ //just 3-5 checks so is not worth to optimize
-        buf= &((InternalBuffer*)s->internal_buffer)[i];
-        if(buf->data[0] == pic->data[0])
-            break;
-    }
-    assert(i < s->internal_buffer_count);
-    s->internal_buffer_count--;
-    last = &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
-
-    FFSWAP(InternalBuffer, *buf, *last);
-
-    for(i=0; i<4; i++){
-        pic->data[i]=NULL;
-//        pic->base[i]=NULL;
-    }
-//printf("R%X\n", pic->opaque);
-
-    if(s->debug&FF_DEBUG_BUFFERS)
-        av_log(s, AV_LOG_DEBUG, "default_release_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
-}
-
-int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
-    AVFrame temp_pic;
-    int i;
-
-    /* If no picture return a new buffer */
-    if(pic->data[0] == NULL) {
-        /* We will copy from buffer, so must be readable */
-        pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
-        return s->get_buffer(s, pic);
-    }
-
-    /* If internal buffer type return the same buffer */
-    if(pic->type == FF_BUFFER_TYPE_INTERNAL) {
-        pic->reordered_opaque= s->reordered_opaque;
-        return 0;
-    }
-
-    /*
-     * Not internal type and reget_buffer not overridden, emulate cr buffer
-     */
-    temp_pic = *pic;
-    for(i = 0; i < 4; i++)
-        pic->data[i] = pic->base[i] = NULL;
-    pic->opaque = NULL;
-    /* Allocate new frame */
-    if (s->get_buffer(s, pic))
-        return -1;
-    /* Copy image data from old buffer to new buffer */
-    av_picture_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width,
-             s->height);
-    s->release_buffer(s, &temp_pic); // Release old frame
-    return 0;
-}
-
-int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size){
-    int i;
-
-    for(i=0; i<count; i++){
-        int r= func(c, (char*)arg + i*size);
-        if(ret) ret[i]= r;
-    }
-    return 0;
-}
-
-int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr),void *arg, int *ret, int count){
-    int i;
-
-    for(i=0; i<count; i++){
-        int r= func(c, arg, i, 0);
-        if(ret) ret[i]= r;
-    }
-    return 0;
-}
-
-enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat *fmt){
-    while (*fmt != PIX_FMT_NONE && ff_is_hwaccel_pix_fmt(*fmt))
-        ++fmt;
-    return fmt[0];
-}
-
-void avcodec_get_frame_defaults(AVFrame *pic){
-    memset(pic, 0, sizeof(AVFrame));
-
-    pic->pts= AV_NOPTS_VALUE;
-    pic->key_frame= 1;
-}
-
-AVFrame *avcodec_alloc_frame(void){
-    AVFrame *pic= av_malloc(sizeof(AVFrame));
-
-    if(pic==NULL) return NULL;
-
-    avcodec_get_frame_defaults(pic);
-
-    return pic;
-}
-
-int attribute_align_arg avcodec_open(AVCodecContext *avctx, AVCodec *codec)
-{
-    int ret= -1;
-
-    /* If there is a user-supplied mutex locking routine, call it. */
-    if (ff_lockmgr_cb) {
-        if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
-            return -1;
-    }
-
-    entangled_thread_counter++;
-    if(entangled_thread_counter != 1){
-        av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
-        goto end;
-    }
-
-    if(avctx->codec || !codec)
-        goto end;
-
-    if (codec->priv_data_size > 0) {
-        avctx->priv_data = av_mallocz(codec->priv_data_size);
-        if (!avctx->priv_data) {
-            ret = AVERROR(ENOMEM);
-            goto end;
-        }
-    } else {
-        avctx->priv_data = NULL;
-    }
-
-    if(avctx->coded_width && avctx->coded_height)
-        avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
-    else if(avctx->width && avctx->height)
-        avcodec_set_dimensions(avctx, avctx->width, avctx->height);
-
-#define SANE_NB_CHANNELS 128U
-    if (((avctx->coded_width || avctx->coded_height)
-        && av_check_image_size(avctx->coded_width, avctx->coded_height, 0, avctx))
-        || avctx->channels > SANE_NB_CHANNELS) {
-        ret = AVERROR(EINVAL);
-        goto free_and_end;
-    }
-
-    avctx->codec = codec;
-    if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
-        avctx->codec_id == CODEC_ID_NONE) {
-        avctx->codec_type = codec->type;
-        avctx->codec_id   = codec->id;
-    }
-    if(avctx->codec_id != codec->id || avctx->codec_type != codec->type){
-        av_log(avctx, AV_LOG_ERROR, "codec type or id mismatches\n");
-        goto free_and_end;
-    }
-    avctx->frame_number = 0;
-    if(avctx->codec->init){
-        if(avctx->codec_type == AVMEDIA_TYPE_VIDEO &&
-           avctx->codec->max_lowres < avctx->lowres){
-            av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
-                   avctx->codec->max_lowres);
-            goto free_and_end;
-        }
-
-        ret = avctx->codec->init(avctx);
-        if (ret < 0) {
-            goto free_and_end;
-        }
-    }
-    ret=0;
-end:
-    entangled_thread_counter--;
-
-    /* Release any user-supplied mutex. */
-    if (ff_lockmgr_cb) {
-        (*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE);
-    }
-    return ret;
-free_and_end:
-    av_freep(&avctx->priv_data);
-    avctx->codec= NULL;
-    goto end;
-}
-
-int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
-                         const short *samples)
-{
-    if(buf_size < FF_MIN_BUFFER_SIZE && 0){
-        av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
-        return -1;
-    }
-    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){
-        int ret = avctx->codec->encode(avctx, buf, buf_size, samples);
-        avctx->frame_number++;
-        return ret;
-    }else
-        return 0;
-}
-
-int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
-                         const AVFrame *pict)
-{
-    if(buf_size < FF_MIN_BUFFER_SIZE){
-        av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
-        return -1;
-    }
-    if(av_check_image_size(avctx->width, avctx->height, 0, avctx))
-        return -1;
-    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){
-        int ret = avctx->codec->encode(avctx, buf, buf_size, pict);
-        avctx->frame_number++;
-        emms_c(); //needed to avoid an emms_c() call before every return;
-
-        return ret;
-    }else
-        return 0;
-}
-
-int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
-                            const AVSubtitle *sub)
-{
-    int ret;
-    if(sub->start_display_time) {
-        av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
-        return -1;
-    }
-    if(sub->num_rects == 0 || !sub->rects)
-        return -1;
-    ret = avctx->codec->encode(avctx, buf, buf_size, sub);
-    avctx->frame_number++;
-    return ret;
-}
-
-#if LIBAVCODEC_VERSION_MAJOR < 53
-int attribute_align_arg avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
-                         int *got_picture_ptr,
-                         const uint8_t *buf, int buf_size)
-{
-    AVPacket avpkt;
-    av_init_packet(&avpkt);
-    avpkt.data = buf;
-    avpkt.size = buf_size;
-    // HACK for CorePNG to decode as normal PNG by default
-    avpkt.flags = AV_PKT_FLAG_KEY;
-
-    return avcodec_decode_video2(avctx, picture, got_picture_ptr, &avpkt);
-}
-#endif
-
-int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
-                         int *got_picture_ptr,
-                         AVPacket *avpkt)
-{
-    int ret;
-
-    *got_picture_ptr= 0;
-    if((avctx->coded_width||avctx->coded_height) && av_check_image_size(avctx->coded_width, avctx->coded_height, 0, avctx))
-        return -1;
-    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size){
-        ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
-                                avpkt);
-
-        emms_c(); //needed to avoid an emms_c() call before every return;
-
-        if (*got_picture_ptr)
-            avctx->frame_number++;
-    }else
-        ret= 0;
-
-    return ret;
-}
-
-#if LIBAVCODEC_VERSION_MAJOR < 53
-int attribute_align_arg avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples,
-                         int *frame_size_ptr,
-                         const uint8_t *buf, int buf_size)
-{
-    AVPacket avpkt;
-    av_init_packet(&avpkt);
-    avpkt.data = buf;
-    avpkt.size = buf_size;
-
-    return avcodec_decode_audio3(avctx, samples, frame_size_ptr, &avpkt);
-}
-#endif
-
-int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
-                         int *frame_size_ptr,
-                         AVPacket *avpkt)
-{
-    int ret;
-
-    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size){
-        //FIXME remove the check below _after_ ensuring that all audio check that the available space is enough
-        if(*frame_size_ptr < AVCODEC_MAX_AUDIO_FRAME_SIZE){
-            av_log(avctx, AV_LOG_ERROR, "buffer smaller than AVCODEC_MAX_AUDIO_FRAME_SIZE\n");
-            return -1;
-        }
-        if(*frame_size_ptr < FF_MIN_BUFFER_SIZE ||
-        *frame_size_ptr < avctx->channels * avctx->frame_size * sizeof(int16_t)){
-            av_log(avctx, AV_LOG_ERROR, "buffer %d too small\n", *frame_size_ptr);
-            return -1;
-        }
-
-        ret = avctx->codec->decode(avctx, samples, frame_size_ptr, avpkt);
-        avctx->frame_number++;
-    }else{
-        ret= 0;
-        *frame_size_ptr=0;
-    }
-    return ret;
-}
-
-#if LIBAVCODEC_VERSION_MAJOR < 53
-int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
-                            int *got_sub_ptr,
-                            const uint8_t *buf, int buf_size)
-{
-    AVPacket avpkt;
-    av_init_packet(&avpkt);
-    avpkt.data = buf;
-    avpkt.size = buf_size;
-
-    return avcodec_decode_subtitle2(avctx, sub, got_sub_ptr, &avpkt);
-}
-#endif
-
-int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
-                            int *got_sub_ptr,
-                            AVPacket *avpkt)
-{
-    int ret;
-
-    *got_sub_ptr = 0;
-    ret = avctx->codec->decode(avctx, sub, got_sub_ptr, avpkt);
-    if (*got_sub_ptr)
-        avctx->frame_number++;
-    return ret;
-}
-
-void avsubtitle_free(AVSubtitle *sub)
-{
-    int i;
-
-    for (i = 0; i < sub->num_rects; i++)
-    {
-        av_freep(&sub->rects[i]->pict.data[0]);
-        av_freep(&sub->rects[i]->pict.data[1]);
-        av_freep(&sub->rects[i]->pict.data[2]);
-        av_freep(&sub->rects[i]->pict.data[3]);
-        av_freep(&sub->rects[i]->text);
-        av_freep(&sub->rects[i]->ass);
-        av_freep(&sub->rects[i]);
-    }
-
-    av_freep(&sub->rects);
-
-    memset(sub, 0, sizeof(AVSubtitle));
-}
-
-av_cold int avcodec_close(AVCodecContext *avctx)
-{
-    /* If there is a user-supplied mutex locking routine, call it. */
-    if (ff_lockmgr_cb) {
-        if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
-            return -1;
-    }
-
-    entangled_thread_counter++;
-    if(entangled_thread_counter != 1){
-        av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
-        entangled_thread_counter--;
-        return -1;
-    }
-
-    if (HAVE_THREADS && avctx->thread_opaque)
-        avcodec_thread_free(avctx);
-    if (avctx->codec && avctx->codec->close)
-        avctx->codec->close(avctx);
-    avcodec_default_free_buffers(avctx);
-    avctx->coded_frame = NULL;
-    av_freep(&avctx->priv_data);
-    if(avctx->codec && avctx->codec->encode)
-        av_freep(&avctx->extradata);
-    avctx->codec = NULL;
-    entangled_thread_counter--;
-
-    /* Release any user-supplied mutex. */
-    if (ff_lockmgr_cb) {
-        (*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE);
-    }
-    return 0;
-}
-
-AVCodec *avcodec_find_encoder(enum CodecID id)
-{
-    AVCodec *p, *experimental=NULL;
-    p = first_avcodec;
-    while (p) {
-        if (p->encode != NULL && p->id == id) {
-            if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) {
-                experimental = p;
-            } else
-                return p;
-        }
-        p = p->next;
-    }
-    return experimental;
-}
-
-AVCodec *avcodec_find_encoder_by_name(const char *name)
-{
-    AVCodec *p;
-    if (!name)
-        return NULL;
-    p = first_avcodec;
-    while (p) {
-        if (p->encode != NULL && strcmp(name,p->name) == 0)
-            return p;
-        p = p->next;
-    }
-    return NULL;
-}
-
-AVCodec *avcodec_find_decoder(enum CodecID id)
-{
-    AVCodec *p;
-    p = first_avcodec;
-    while (p) {
-        if (p->decode != NULL && p->id == id)
-            return p;
-        p = p->next;
-    }
-    return NULL;
-}
-
-AVCodec *avcodec_find_decoder_by_name(const char *name)
-{
-    AVCodec *p;
-    if (!name)
-        return NULL;
-    p = first_avcodec;
-    while (p) {
-        if (p->decode != NULL && strcmp(name,p->name) == 0)
-            return p;
-        p = p->next;
-    }
-    return NULL;
-}
-
-static int get_bit_rate(AVCodecContext *ctx)
-{
-    int bit_rate;
-    int bits_per_sample;
-
-    switch(ctx->codec_type) {
-    case AVMEDIA_TYPE_VIDEO:
-    case AVMEDIA_TYPE_DATA:
-    case AVMEDIA_TYPE_SUBTITLE:
-    case AVMEDIA_TYPE_ATTACHMENT:
-        bit_rate = ctx->bit_rate;
-        break;
-    case AVMEDIA_TYPE_AUDIO:
-        bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
-        bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate;
-        break;
-    default:
-        bit_rate = 0;
-        break;
-    }
-    return bit_rate;
-}
-
-size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
-{
-    int i, len, ret = 0;
-
-    for (i = 0; i < 4; i++) {
-        len = snprintf(buf, buf_size,
-                       isprint(codec_tag&0xFF) ? "%c" : "[%d]", codec_tag&0xFF);
-        buf      += len;
-        buf_size  = buf_size > len ? buf_size - len : 0;
-        ret      += len;
-        codec_tag>>=8;
-    }
-    return ret;
-}
-
-void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
-{
-    const char *codec_name;
-    AVCodec *p;
-    char buf1[32];
-    int bitrate;
-    AVRational display_aspect_ratio;
-
-    if (encode)
-        p = avcodec_find_encoder(enc->codec_id);
-    else
-        p = avcodec_find_decoder(enc->codec_id);
-
-    if (p) {
-        codec_name = p->name;
-    } else if (enc->codec_id == CODEC_ID_MPEG2TS) {
-        /* fake mpeg2 transport stream codec (currently not
-           registered) */
-        codec_name = "mpeg2ts";
-    } else if (enc->codec_name[0] != '\0') {
-        codec_name = enc->codec_name;
-    } else {
-        /* output avi tags */
-        char tag_buf[32];
-        av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
-        snprintf(buf1, sizeof(buf1), "%s / 0x%04X", tag_buf, enc->codec_tag);
-        codec_name = buf1;
-    }
-
-    switch(enc->codec_type) {
-    case AVMEDIA_TYPE_VIDEO:
-        snprintf(buf, buf_size,
-                 "Video: %s%s",
-                 codec_name, enc->mb_decision ? " (hq)" : "");
-        if (enc->pix_fmt != PIX_FMT_NONE) {
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     ", %s",
-                     avcodec_get_pix_fmt_name(enc->pix_fmt));
-        }
-        if (enc->width) {
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     ", %dx%d",
-                     enc->width, enc->height);
-            if (enc->sample_aspect_ratio.num) {
-                av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
-                          enc->width*enc->sample_aspect_ratio.num,
-                          enc->height*enc->sample_aspect_ratio.den,
-                          1024*1024);
-                snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                         " [PAR %d:%d DAR %d:%d]",
-                         enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
-                         display_aspect_ratio.num, display_aspect_ratio.den);
-            }
-            if(av_log_get_level() >= AV_LOG_DEBUG){
-                int g= av_gcd(enc->time_base.num, enc->time_base.den);
-                snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     ", %d/%d",
-                     enc->time_base.num/g, enc->time_base.den/g);
-            }
-        }
-        if (encode) {
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     ", q=%d-%d", enc->qmin, enc->qmax);
-        }
-        break;
-    case AVMEDIA_TYPE_AUDIO:
-        snprintf(buf, buf_size,
-                 "Audio: %s",
-                 codec_name);
-        if (enc->sample_rate) {
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     ", %d Hz", enc->sample_rate);
-        }
-        av_strlcat(buf, ", ", buf_size);
-        avcodec_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
-        if (enc->sample_fmt != SAMPLE_FMT_NONE) {
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     ", %s", avcodec_get_sample_fmt_name(enc->sample_fmt));
-        }
-        break;
-    case AVMEDIA_TYPE_DATA:
-        snprintf(buf, buf_size, "Data: %s", codec_name);
-        break;
-    case AVMEDIA_TYPE_SUBTITLE:
-        snprintf(buf, buf_size, "Subtitle: %s", codec_name);
-        break;
-    case AVMEDIA_TYPE_ATTACHMENT:
-        snprintf(buf, buf_size, "Attachment: %s", codec_name);
-        break;
-    default:
-        snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
-        return;
-    }
-    if (encode) {
-        if (enc->flags & CODEC_FLAG_PASS1)
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     ", pass 1");
-        if (enc->flags & CODEC_FLAG_PASS2)
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     ", pass 2");
-    }
-    bitrate = get_bit_rate(enc);
-    if (bitrate != 0) {
-        snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                 ", %d kb/s", bitrate / 1000);
-    }
-}
-
-unsigned avcodec_version( void )
-{
-  return LIBAVCODEC_VERSION_INT;
-}
-
-const char *avcodec_configuration(void)
-{
-    return FFMPEG_CONFIGURATION;
-}
-
-const char *avcodec_license(void)
-{
-#define LICENSE_PREFIX "libavcodec license: "
-    return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
-}
-
-void avcodec_init(void)
-{
-    static int initialized = 0;
-
-    if (initialized != 0)
-        return;
-    initialized = 1;
-
-    dsputil_static_init();
-}
-
-void avcodec_flush_buffers(AVCodecContext *avctx)
-{
-    if(avctx->codec->flush)
-        avctx->codec->flush(avctx);
-}
-
-void avcodec_default_free_buffers(AVCodecContext *s){
-    int i, j;
-
-    if(s->internal_buffer==NULL) return;
-
-    if (s->internal_buffer_count)
-        av_log(s, AV_LOG_WARNING, "Found %i unreleased buffers!\n", s->internal_buffer_count);
-    for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
-        InternalBuffer *buf= &((InternalBuffer*)s->internal_buffer)[i];
-        for(j=0; j<4; j++){
-            av_freep(&buf->base[j]);
-            buf->data[j]= NULL;
-        }
-    }
-    av_freep(&s->internal_buffer);
-
-    s->internal_buffer_count=0;
-}
-
-char av_get_pict_type_char(int pict_type){
-    switch(pict_type){
-    case FF_I_TYPE: return 'I';
-    case FF_P_TYPE: return 'P';
-    case FF_B_TYPE: return 'B';
-    case FF_S_TYPE: return 'S';
-    case FF_SI_TYPE:return 'i';
-    case FF_SP_TYPE:return 'p';
-    case FF_BI_TYPE:return 'b';
-    default:        return '?';
-    }
-}
-
-int av_get_bits_per_sample(enum CodecID codec_id){
-    switch(codec_id){
-    case CODEC_ID_ADPCM_SBPRO_2:
-        return 2;
-    case CODEC_ID_ADPCM_SBPRO_3:
-        return 3;
-    case CODEC_ID_ADPCM_SBPRO_4:
-    case CODEC_ID_ADPCM_CT:
-    case CODEC_ID_ADPCM_IMA_WAV:
-    case CODEC_ID_ADPCM_MS:
-    case CODEC_ID_ADPCM_YAMAHA:
-        return 4;
-    case CODEC_ID_PCM_ALAW:
-    case CODEC_ID_PCM_MULAW:
-    case CODEC_ID_PCM_S8:
-    case CODEC_ID_PCM_U8:
-    case CODEC_ID_PCM_ZORK:
-        return 8;
-    case CODEC_ID_PCM_S16BE:
-    case CODEC_ID_PCM_S16LE:
-    case CODEC_ID_PCM_S16LE_PLANAR:
-    case CODEC_ID_PCM_U16BE:
-    case CODEC_ID_PCM_U16LE:
-        return 16;
-    case CODEC_ID_PCM_S24DAUD:
-    case CODEC_ID_PCM_S24BE:
-    case CODEC_ID_PCM_S24LE:
-    case CODEC_ID_PCM_U24BE:
-    case CODEC_ID_PCM_U24LE:
-        return 24;
-    case CODEC_ID_PCM_S32BE:
-    case CODEC_ID_PCM_S32LE:
-    case CODEC_ID_PCM_U32BE:
-    case CODEC_ID_PCM_U32LE:
-    case CODEC_ID_PCM_F32BE:
-    case CODEC_ID_PCM_F32LE:
-        return 32;
-    case CODEC_ID_PCM_F64BE:
-    case CODEC_ID_PCM_F64LE:
-        return 64;
-    default:
-        return 0;
-    }
-}
-
-int av_get_bits_per_sample_format(enum SampleFormat sample_fmt) {
-    switch (sample_fmt) {
-    case SAMPLE_FMT_U8:
-        return 8;
-    case SAMPLE_FMT_S16:
-        return 16;
-    case SAMPLE_FMT_S32:
-    case SAMPLE_FMT_FLT:
-        return 32;
-    case SAMPLE_FMT_DBL:
-        return 64;
-    default:
-        return 0;
-    }
-}
-
-#if !HAVE_THREADS
-int avcodec_thread_init(AVCodecContext *s, int thread_count){
-    s->thread_count = thread_count;
-    return -1;
-}
-#endif
-
-unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
-{
-    unsigned int n = 0;
-
-    while(v >= 0xff) {
-        *s++ = 0xff;
-        v -= 0xff;
-        n++;
-    }
-    *s = v;
-    n++;
-    return n;
-}
-
-#if LIBAVCODEC_VERSION_MAJOR < 53
-#include "libavcore/parseutils.h"
-
-int av_parse_video_frame_size(int *width_ptr, int *height_ptr, const char *str)
-{
-    return av_parse_video_size(width_ptr, height_ptr, str);
-}
-
-int av_parse_video_frame_rate(AVRational *frame_rate, const char *arg)
-{
-    return av_parse_video_rate(frame_rate, arg);
-}
-#endif
-
-int ff_match_2uint16(const uint16_t (*tab)[2], int size, int a, int b){
-    int i;
-    for(i=0; i<size && !(tab[i][0]==a && tab[i][1]==b); i++);
-    return i;
-}
-#endif
-
-void av_log_missing_feature(void *avc, const char *feature, int want_sample)
-{
-    av_log(avc, AV_LOG_WARNING, "%s not implemented. Update your FFmpeg "
-            "version to the newest one from SVN. If the problem still "
-            "occurs, it means that your file has a feature which has not "
-            "been implemented.", feature);
-    if(want_sample)
-        av_log_ask_for_sample(avc, NULL);
-    else
-        av_log(avc, AV_LOG_WARNING, "\n");
-}
-
-void av_log_ask_for_sample(void *avc, const char *msg)
-{
-    if (msg)
-        av_log(avc, AV_LOG_WARNING, "%s ", msg);
-    av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
-            "of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ "
-            "and contact the ffmpeg-devel mailing list.\n");
-}
-#if 0
-static AVHWAccel *first_hwaccel = NULL;
-
-void av_register_hwaccel(AVHWAccel *hwaccel)
-{
-    AVHWAccel **p = &first_hwaccel;
-    while (*p)
-        p = &(*p)->next;
-    *p = hwaccel;
-    hwaccel->next = NULL;
-}
-
-AVHWAccel *av_hwaccel_next(AVHWAccel *hwaccel)
-{
-    return hwaccel ? hwaccel->next : first_hwaccel;
-}
-
-AVHWAccel *ff_find_hwaccel(enum CodecID codec_id, enum PixelFormat pix_fmt)
-{
-    AVHWAccel *hwaccel=NULL;
-
-    while((hwaccel= av_hwaccel_next(hwaccel))){
-        if (   hwaccel->id      == codec_id
-            && hwaccel->pix_fmt == pix_fmt)
-            return hwaccel;
-    }
-    return NULL;
-}
-
-int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
-{
-    if (ff_lockmgr_cb) {
-        if (ff_lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY))
-            return -1;
-    }
-
-    ff_lockmgr_cb = cb;
-
-    if (ff_lockmgr_cb) {
-        if (ff_lockmgr_cb(&codec_mutex, AV_LOCK_CREATE))
-            return -1;
-    }
-    return 0;
-}
-
-unsigned int ff_toupper4(unsigned int x)
-{
-    return     toupper( x     &0xFF)
-            + (toupper((x>>8 )&0xFF)<<8 )
-            + (toupper((x>>16)&0xFF)<<16)
-            + (toupper((x>>24)&0xFF)<<24);
-}
-#endif