Merge remote-tracking branch 'qatar/master'

* qatar/master:
  swfdec: Add support for sample_rate_code 0 (5512 Hz)
  dct-test: factor out some common code and do whas was likely intended
  doc: library versions need to be bumped in version.h
  Revert "ffmpeg: get rid of useless AVInputStream.nb_streams."
  Remove some forgotten AVCodecContext.palctrl usage.
  lavc/utils: move avcodec_init() higher in the file.
  lavc: replace some deprecated FF_*_TYPE with AV_PICTURE_TYPE_*
  ac3dec: actually use drc_scale private option
  lavc: undeprecate AVPALETTE_SIZE and AVPALETTE_COUNT macros
  alsa: add missing header
  msmpeg4: remove leftover unused debug variable declaration
  Fix assert() calls that need updates after FF_COMMON_FRAME macro elimination.
  Fix av_dlog invocations with wrong or missing logging context.
  vf_yadif: add support to yuva420p
  vf_yadif: correct documentation on the parity parameter
  vf_yadif: copy buffer properties like aspect for second frame as well
  oma: support for encrypted files
  id3v2: add support for non-text and GEOB type tag frames
  des: add possibility to calculate DES-CBC-MAC with small buffer

Conflicts:
	ffmpeg.c
	libavcodec/dct-test.c
	libavformat/mpegts.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

doc/developer.texi

@@ -310,7 +310,7 @@ send a reminder by email. Your patch should eventually be dealt with.
     AVInputFormat/AVOutputFormat struct?
 @item
     Did you bump the minor version number (and reset the micro version
-    number) in @file{avcodec.h} or @file{avformat.h}?
+    number) in @file{libavcodec/version.h} or @file{libavformat/version.h}?
 @item
     Did you register it in @file{allcodecs.c} or @file{allformats.c}?
 @item

libavcodec/ac3dec.c

@@ -176,6 +176,11 @@ static av_cold int ac3_decode_init(AVCodecContext *avctx)
     AC3DecodeContext *s = avctx->priv_data;
     s->avctx = avctx;
 
+#if FF_API_DRC_SCALE
+    if (avctx->drc_scale)
+        s->drc_scale = avctx->drc_scale;
+#endif
+
     ff_ac3_common_init();
     ac3_tables_init();
     ff_mdct_init(&s->imdct_256, 8, 1, 1.0);
@@ -788,7 +793,7 @@ static int decode_audio_block(AC3DecodeContext *s, int blk)
     do {
         if(get_bits1(gbc)) {
             s->dynamic_range[i] = ((dynamic_range_tab[get_bits(gbc, 8)]-1.0) *
-                                  s->avctx->drc_scale)+1.0;
+                                  s->drc_scale)+1.0;
         } else if(blk == 0) {
             s->dynamic_range[i] = 1.0f;
         }

libavcodec/avcodec.h

@@ -3149,6 +3149,8 @@ typedef struct AVPicture {
     int linesize[4];       ///< number of bytes per line
 } AVPicture;
 
+#define AVPALETTE_SIZE 1024
+#define AVPALETTE_COUNT 256
 #if FF_API_PALETTE_CONTROL
 /**
  * AVPaletteControl
@@ -3158,8 +3160,6 @@ typedef struct AVPicture {
  * @deprecated Use AVPacket to send palette changes instead.
  * This is totally broken.
  */
-#define AVPALETTE_SIZE 1024
-#define AVPALETTE_COUNT 256
 typedef struct AVPaletteControl {
 
     /* Demuxer sets this to 1 to indicate the palette has changed;

libavcodec/dct-test.c

@@ -199,6 +199,55 @@ static inline void mmx_emms(void)
 #endif
 }
 
+static void init_block(DCTELEM block[64], int test, int is_idct, AVLFG *prng, int vals)
+{
+    int i, j;
+
+    memset(block, 0, 64 * sizeof(*block));
+
+    switch (test) {
+    case 0:
+        for (i = 0; i < 64; i++)
+            block[i] = (av_lfg_get(prng) % (2*vals)) -vals;
+        if (is_idct) {
+            ff_ref_fdct(block);
+            for (i = 0; i < 64; i++)
+                block[i] >>= 3;
+        }
+        break;
+    case 1:
+        j = av_lfg_get(prng) % 10 + 1;
+        for (i = 0; i < j; i++)
+            block[av_lfg_get(prng) % 64] = av_lfg_get(prng) % (2*vals) -vals;
+        break;
+    case 2:
+        block[ 0] = av_lfg_get(prng) % (16*vals) - (8*vals);
+        block[63] = (block[0] & 1) ^ 1;
+        break;
+    }
+}
+
+static void permute(DCTELEM dst[64], const DCTELEM src[64], int perm)
+{
+    int i;
+
+    if (perm == MMX_PERM) {
+        for (i = 0; i < 64; i++)
+            dst[idct_mmx_perm[i]] = src[i];
+    } else if (perm == MMX_SIMPLE_PERM) {
+        for (i = 0; i < 64; i++)
+            dst[idct_simple_mmx_perm[i]] = src[i];
+    } else if (perm == SSE2_PERM) {
+        for (i = 0; i < 64; i++)
+            dst[(i & 0x38) | idct_sse2_row_perm[i & 7]] = src[i];
+    } else if (perm == PARTTRANS_PERM) {
+        for (i = 0; i < 64; i++)
+            dst[(i & 0x24) | ((i & 3) << 3) | ((i >> 3) & 3)] = src[i];
+    } else {
+        for (i = 0; i < 64; i++)
+            dst[i] = src[i];
+    }
+}
 
 static int dct_error(const struct algo *dct, int test, int is_idct, int speed, const int bits)
 {
@@ -221,46 +270,8 @@ static int dct_error(const struct algo *dct, int test, int is_idct, int speed, c
     for (i = 0; i < 64; i++)
         sysErr[i] = 0;
     for (it = 0; it < NB_ITS; it++) {
-        for (i = 0; i < 64; i++)
-            block1[i] = 0;
-        switch (test) {
-        case 0:
-            for (i = 0; i < 64; i++)
-                block1[i] = (av_lfg_get(&prng) % (2*vals)) -vals;
-            if (is_idct) {
-                ff_ref_fdct(block1);
-                for (i = 0; i < 64; i++)
-                    block1[i] >>= 3;
-            }
-            break;
-        case 1: {
-                int num = av_lfg_get(&prng) % 10 + 1;
-                for (i = 0; i < num; i++)
-                    block1[av_lfg_get(&prng) % 64] = av_lfg_get(&prng) % (2*vals) -vals;
-            }
-            break;
-        case 2:
-            block1[0] = av_lfg_get(&prng) % (16*vals) - (8*vals);
-            block1[63] = (block1[0] & 1) ^ 1;
-            break;
-        }
-
-        if (dct->format == MMX_PERM) {
-            for (i = 0; i < 64; i++)
-                block[idct_mmx_perm[i]] = block1[i];
-        } else if (dct->format == MMX_SIMPLE_PERM) {
-            for (i = 0; i < 64; i++)
-                block[idct_simple_mmx_perm[i]] = block1[i];
-        } else if (dct->format == SSE2_PERM) {
-            for (i = 0; i < 64; i++)
-                block[(i & 0x38) | idct_sse2_row_perm[i & 7]] = block1[i];
-        } else if (dct->format == PARTTRANS_PERM) {
-            for (i = 0; i < 64; i++)
-                block[(i & 0x24) | ((i & 3) << 3) | ((i >> 3) & 3)] = block1[i];
-        } else {
-            for (i = 0; i < 64; i++)
-                block[i] = block1[i];
-        }
+        init_block(block1, test, is_idct, &prng, vals);
+        permute(block, block1, dct->format);
 
         dct->func(block);
         mmx_emms();
@@ -317,45 +328,15 @@ static int dct_error(const struct algo *dct, int test, int is_idct, int speed, c
         return 0;
 
     /* speed test */
-    for (i = 0; i < 64; i++)
-        block1[i] = 0;
-
-    switch (test) {
-    case 0:
-        for (i = 0; i < 64; i++)
-            block1[i] = av_lfg_get(&prng) % (2*vals) -vals;
-        if (is_idct) {
-            ff_ref_fdct(block1);
-            for (i = 0; i < 64; i++)
-                block1[i] >>= 3;
-        }
-        break;
-    case 1:
-    case 2:
-        block1[0] = av_lfg_get(&prng) % (2*vals) -vals;
-        block1[1] = av_lfg_get(&prng) % (2*vals) -vals;
-        block1[2] = av_lfg_get(&prng) % (2*vals) -vals;
-        block1[3] = av_lfg_get(&prng) % (2*vals) -vals;
-        break;
-    }
 
-    if (dct->format == MMX_PERM) {
-        for (i = 0; i < 64; i++)
-            block[idct_mmx_perm[i]] = block1[i];
-    } else if (dct->format == MMX_SIMPLE_PERM) {
-        for (i = 0; i < 64; i++)
-            block[idct_simple_mmx_perm[i]] = block1[i];
-    } else {
-        for (i = 0; i < 64; i++)
-            block[i] = block1[i];
-    }
+    init_block(block, test, is_idct, &prng, vals);
+    permute(block1, block, dct->format);
 
     ti = gettime();
     it1 = 0;
     do {
         for (it = 0; it < NB_ITS_SPEED; it++) {
-            for (i = 0; i < 64; i++)
-                block[i] = block1[i];
+            memcpy(block, block1, sizeof(block));
             dct->func(block);
         }
         it1 += NB_ITS_SPEED;

libavcodec/h261dec.c

@@ -620,8 +620,8 @@ retry:
     }
     MPV_frame_end(s);
 
-assert(s->current_picture.pict_type == s->current_picture_ptr->pict_type);
-assert(s->current_picture.pict_type == s->pict_type);
+assert(s->current_picture.f.pict_type == s->current_picture_ptr->f.pict_type);
+assert(s->current_picture.f.pict_type == s->pict_type);
     *pict= *(AVFrame*)s->current_picture_ptr;
     ff_print_debug_info(s, pict);
 

libavcodec/h264.c

@@ -2774,7 +2774,7 @@ static int decode_slice_header(H264Context *h, H264Context *h0){
         if (s0->first_field) {
             assert(s0->current_picture_ptr);
             assert(s0->current_picture_ptr->f.data[0]);
-            assert(s0->current_picture_ptr->reference != DELAYED_PIC_REF);
+            assert(s0->current_picture_ptr->f.reference != DELAYED_PIC_REF);
 
             /* figure out if we have a complementary field pair */
             if (!FIELD_PICTURE || s->picture_structure == last_pic_structure) {

libavcodec/h264_direct.c

@@ -172,7 +172,7 @@ static void pred_spatial_direct_motion(H264Context * const h, int *mb_type){
     int mv[2];
     int list;
 
-    assert(h->ref_list[1][0].reference&3);
+    assert(h->ref_list[1][0].f.reference & 3);
 
     await_reference_mb_row(h, &h->ref_list[1][0], s->mb_y + !!IS_INTERLACED(*mb_type));
 
@@ -416,7 +416,7 @@ static void pred_temp_direct_motion(H264Context * const h, int *mb_type){
     unsigned int sub_mb_type;
     int i8, i4;
 
-    assert(h->ref_list[1][0].reference&3);
+    assert(h->ref_list[1][0].f.reference & 3);
 
     await_reference_mb_row(h, &h->ref_list[1][0], s->mb_y + !!IS_INTERLACED(*mb_type));
 

libavcodec/mpeg12.c

@@ -1176,7 +1176,7 @@ static int mpeg_decode_update_thread_context(AVCodecContext *avctx, const AVCode
     if (!ctx->mpeg_enc_ctx_allocated)
         memcpy(s + 1, s1 + 1, sizeof(Mpeg1Context) - sizeof(MpegEncContext));
 
-    if (!(s->pict_type == FF_B_TYPE || s->low_delay))
+    if (!(s->pict_type == AV_PICTURE_TYPE_B || s->low_delay))
         s->picture_number++;
 
     return 0;

libavcodec/mpegvideo.c

@@ -225,7 +225,7 @@ static int alloc_frame_buffer(MpegEncContext *s, Picture *pic)
     int r;
 
     if (s->avctx->hwaccel) {
-        assert(!pic->hwaccel_picture_private);
+        assert(!pic->f.hwaccel_picture_private);
         if (s->avctx->hwaccel->priv_data_size) {
             pic->f.hwaccel_picture_private = av_mallocz(s->avctx->hwaccel->priv_data_size);
             if (!pic->f.hwaccel_picture_private) {
@@ -276,7 +276,7 @@ int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared){
 
     if(shared){
         assert(pic->f.data[0]);
-        assert(pic->type == 0 || pic->type == FF_BUFFER_TYPE_SHARED);
+        assert(pic->f.type == 0 || pic->f.type == FF_BUFFER_TYPE_SHARED);
         pic->f.type = FF_BUFFER_TYPE_SHARED;
     }else{
         assert(!pic->f.data[0]);
@@ -539,7 +539,7 @@ int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src
         s->last_pict_type= s1->pict_type;
         if (s1->current_picture_ptr) s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f.quality;
 
-        if(s1->pict_type!=FF_B_TYPE){
+        if (s1->pict_type != AV_PICTURE_TYPE_B) {
             s->last_non_b_pict_type= s1->pict_type;
         }
     }
@@ -2662,6 +2662,6 @@ void ff_set_qscale(MpegEncContext * s, int qscale)
 
 void MPV_report_decode_progress(MpegEncContext *s)
 {
-    if (s->pict_type != FF_B_TYPE && !s->partitioned_frame && !s->error_occurred)
+    if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->error_occurred)
         ff_thread_report_progress((AVFrame*)s->current_picture_ptr, s->mb_y, 0);
 }

libavcodec/mpegvideo_enc.c

@@ -1093,8 +1093,8 @@ static int select_input_picture(MpegEncContext *s){
                             s->input_picture[0]->f.data[i] = NULL;
                         s->input_picture[0]->f.type = 0;
                     }else{
-                        assert(   s->input_picture[0]->type==FF_BUFFER_TYPE_USER
-                               || s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
+                        assert(   s->input_picture[0]->f.type == FF_BUFFER_TYPE_USER
+                               || s->input_picture[0]->f.type == FF_BUFFER_TYPE_INTERNAL);
 
                         s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]);
                     }
@@ -1220,8 +1220,8 @@ no_output_pic:
         }else{
             // input is not a shared pix -> reuse buffer for current_pix
 
-            assert(   s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
-                   || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
+            assert(   s->reordered_input_picture[0]->f.type == FF_BUFFER_TYPE_USER
+                   || s->reordered_input_picture[0]->f.type == FF_BUFFER_TYPE_INTERNAL);
 
             s->current_picture_ptr= s->reordered_input_picture[0];
             for(i=0; i<4; i++){
@@ -2757,7 +2757,7 @@ static int estimate_qp(MpegEncContext *s, int dry_run){
 
 /* must be called before writing the header */
 static void set_frame_distances(MpegEncContext * s){
-    assert(s->current_picture_ptr->pts != AV_NOPTS_VALUE);
+    assert(s->current_picture_ptr->f.pts != AV_NOPTS_VALUE);
     s->time = s->current_picture_ptr->f.pts * s->avctx->time_base.num;
 
     if(s->pict_type==AV_PICTURE_TYPE_B){

libavcodec/msmpeg4.c

@@ -62,10 +62,6 @@ static uint32_t v2_dc_chroma_table[512][2];
 /* vc1 externs */
 extern const uint8_t wmv3_dc_scale_table[32];
 
-#ifdef DEBUG
-int frame_count = 0;
-#endif
-
 #include "msmpeg4data.h"
 
 #if CONFIG_ENCODERS //strangely gcc includes this even if it is not referenced

libavcodec/options.c

@@ -448,7 +448,7 @@ static const AVOption options[]={
 {"request_channels", "set desired number of audio channels", OFFSET(request_channels), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, INT_MAX, A|D},
 #endif
 #if FF_API_DRC_SCALE
-{"drc_scale", "percentage of dynamic range compression to apply", OFFSET(drc_scale), FF_OPT_TYPE_FLOAT, {.dbl = 1.0 }, 0.0, 1.0, A|D},
+{"drc_scale", "percentage of dynamic range compression to apply", OFFSET(drc_scale), FF_OPT_TYPE_FLOAT, {.dbl = 0.0 }, 0.0, 1.0, A|D},
 #endif
 #if FF_API_LAME_GLOBAL_OPTS
 {"reservoir", "use bit reservoir", 0, FF_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_BIT_RESERVOIR }, INT_MIN, INT_MAX, A|E, "flags2"},
@@ -544,7 +544,6 @@ void avcodec_get_context_defaults2(AVCodecContext *s, enum AVMediaType codec_typ
     s->pix_fmt= PIX_FMT_NONE;
     s->sample_fmt= AV_SAMPLE_FMT_NONE;
 
-    s->palctrl = NULL;
     s->reget_buffer= avcodec_default_reget_buffer;
     s->reordered_opaque= AV_NOPTS_VALUE;
 }
@@ -623,7 +622,6 @@ int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src)
     /* set values specific to opened codecs back to their default state */
     dest->priv_data       = NULL;
     dest->codec           = NULL;
-    dest->palctrl         = NULL;
     dest->slice_offset    = NULL;
     dest->internal_buffer = NULL;
     dest->hwaccel         = NULL;

libavcodec/utils.c

@@ -85,6 +85,20 @@ AVCodec *av_codec_next(AVCodec *c){
     else  return first_avcodec;
 }
 
+#if !FF_API_AVCODEC_INIT
+static
+#endif
+void avcodec_init(void)
+{
+    static int initialized = 0;
+
+    if (initialized != 0)
+        return;
+    initialized = 1;
+
+    dsputil_static_init();
+}
+
 void avcodec_register(AVCodec *codec)
 {
     AVCodec **p;
@@ -1144,20 +1158,6 @@ const char *avcodec_license(void)
     return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
 }
 
-#if !FF_API_AVCODEC_INIT
-static
-#endif
-void avcodec_init(void)
-{
-    static int initialized = 0;
-
-    if (initialized != 0)
-        return;
-    initialized = 1;
-
-    dsputil_static_init();
-}
-
 void avcodec_flush_buffers(AVCodecContext *avctx)
 {
     if(HAVE_PTHREADS && avctx->active_thread_type&FF_THREAD_FRAME)

libavdevice/alsa-audio-common.c

@@ -31,6 +31,7 @@
 #include <alsa/asoundlib.h>
 #include "avdevice.h"
 #include "libavutil/avassert.h"
+#include "libavutil/audioconvert.h"
 
 #include "alsa-audio.h"
 

libavformat/id3v2.c

@@ -66,63 +66,129 @@ static unsigned int get_size(AVIOContext *s, int len)
     return v;
 }
 
-static void read_ttag(AVFormatContext *s, AVIOContext *pb, int taglen, const char *key)
+/**
+ * Free GEOB type extra metadata.
+ */
+static void free_geobtag(ID3v2ExtraMetaGEOB *geob)
 {
-    char *q, dst[512];
-    const char *val = NULL;
-    int len, dstlen = sizeof(dst) - 1;
-    unsigned genre;
-    unsigned int (*get)(AVIOContext*) = avio_rb16;
+    av_free(geob->mime_type);
+    av_free(geob->file_name);
+    av_free(geob->description);
+    av_free(geob->data);
+    av_free(geob);
+}
 
-    dst[0] = 0;
-    if (taglen < 1)
-        return;
+/**
+ * Decode characters to UTF-8 according to encoding type. The decoded buffer is
+ * always null terminated.
+ *
+ * @param dst Pointer where the address of the buffer with the decoded bytes is
+ * stored. Buffer must be freed by caller.
+ * @param dstlen Pointer to an int where the length of the decoded string
+ * is stored (in bytes, incl. null termination)
+ * @param maxread Pointer to maximum number of characters to read from the
+ * AVIOContext. After execution the value is decremented by the number of bytes
+ * actually read.
+ * @seeknull If true, decoding stops after the first U+0000 character found, if
+ * there is any before maxread is reached
+ * @returns 0 if no error occured, dst is uninitialized on error
+ */
+static int decode_str(AVFormatContext *s, AVIOContext *pb, int encoding,
+                      uint8_t **dst, int *dstlen, int *maxread, const int seeknull)
+{
+    int len, ret;
+    uint8_t tmp;
+    uint32_t ch = 1;
+    int left = *maxread;
+    unsigned int (*get)(AVIOContext*) = avio_rb16;
+    AVIOContext *dynbuf;
 
-    taglen--; /* account for encoding type byte */
+    if ((ret = avio_open_dyn_buf(&dynbuf)) < 0) {
+        av_log(s, AV_LOG_ERROR, "Error opening memory stream\n");
+        return ret;
+    }
 
-    switch (avio_r8(pb)) { /* encoding type */
+    switch (encoding) {
 
     case ID3v2_ENCODING_ISO8859:
-        q = dst;
-        while (taglen-- && q - dst < dstlen - 7) {
-            uint8_t tmp;
-            PUT_UTF8(avio_r8(pb), tmp, *q++ = tmp;)
+        while (left && (!seeknull || ch)) {
+            ch = avio_r8(pb);
+            PUT_UTF8(ch, tmp, avio_w8(dynbuf, tmp);)
+            left--;
         }
-        *q = 0;
         break;
 
     case ID3v2_ENCODING_UTF16BOM:
-        taglen -= 2;
+        if ((left -= 2) < 0) {
+            av_log(s, AV_LOG_ERROR, "Cannot read BOM value, input too short\n");
+            avio_close_dyn_buf(dynbuf, (uint8_t **)dst);
+            av_freep(dst);
+            return AVERROR_INVALIDDATA;
+        }
         switch (avio_rb16(pb)) {
         case 0xfffe:
             get = avio_rl16;
         case 0xfeff:
             break;
         default:
-            av_log(s, AV_LOG_ERROR, "Incorrect BOM value in tag %s.\n", key);
-            return;
+            av_log(s, AV_LOG_ERROR, "Incorrect BOM value\n");
+            avio_close_dyn_buf(dynbuf, (uint8_t **)dst);
+            av_freep(dst);
+            *maxread = left;
+            return AVERROR_INVALIDDATA;
         }
         // fall-through
 
     case ID3v2_ENCODING_UTF16BE:
-        q = dst;
-        while (taglen > 1 && q - dst < dstlen - 7) {
-            uint32_t ch;
-            uint8_t tmp;
-
-            GET_UTF16(ch, ((taglen -= 2) >= 0 ? get(pb) : 0), break;)
-            PUT_UTF8(ch, tmp, *q++ = tmp;)
+        while ((left > 1) && (!seeknull || ch)) {
+            GET_UTF16(ch, ((left -= 2) >= 0 ? get(pb) : 0), break;)
+            PUT_UTF8(ch, tmp, avio_w8(dynbuf, tmp);)
         }
-        *q = 0;
+        if (left < 0)
+            left += 2; /* did not read last char from pb */
         break;
 
     case ID3v2_ENCODING_UTF8:
-        len = FFMIN(taglen, dstlen);
-        avio_read(pb, dst, len);
-        dst[len] = 0;
+        while (left && (!seeknull || ch)) {
+            ch = avio_r8(pb);
+            avio_w8(dynbuf, ch);
+            left--;
+        }
         break;
     default:
-        av_log(s, AV_LOG_WARNING, "Unknown encoding in tag %s.\n", key);
+        av_log(s, AV_LOG_WARNING, "Unknown encoding\n");
+    }
+
+    if (ch)
+        avio_w8(dynbuf, 0);
+
+    len = avio_close_dyn_buf(dynbuf, (uint8_t **)dst);
+    if (dstlen)
+        *dstlen = len;
+
+    *maxread = left;
+
+    return 0;
+}
+
+/**
+ * Parse a text tag.
+ */
+static void read_ttag(AVFormatContext *s, AVIOContext *pb, int taglen, const char *key)
+{
+    uint8_t *dst;
+    const char *val = NULL;
+    int len, dstlen;
+    unsigned genre;
+
+    if (taglen < 1)
+        return;
+
+    taglen--; /* account for encoding type byte */
+
+    if (decode_str(s, pb, avio_r8(pb), &dst, &dstlen, &taglen, 0) < 0) {
+        av_log(s, AV_LOG_ERROR, "Error reading frame %s, skipped\n", key);
+        return;
     }
 
     if (!(strcmp(key, "TCON") && strcmp(key, "TCO"))
@@ -141,6 +207,82 @@ static void read_ttag(AVFormatContext *s, AVIOContext *pb, int taglen, const cha
 
     if (val)
         av_dict_set(&s->metadata, key, val, AV_DICT_DONT_OVERWRITE);
+
+    av_free(dst);
+}
+
+/**
+ * Parse GEOB tag into a ID3v2ExtraMetaGEOB struct.
+ */
+static void read_geobtag(AVFormatContext *s, AVIOContext *pb, int taglen, char *tag, ID3v2ExtraMeta **extra_meta)
+{
+    ID3v2ExtraMetaGEOB *geob_data = NULL;
+    ID3v2ExtraMeta *new_extra = NULL;
+    char encoding;
+    unsigned int len;
+
+    if (taglen < 1)
+        return;
+
+    geob_data = av_mallocz(sizeof(ID3v2ExtraMetaGEOB));
+    if (!geob_data) {
+        av_log(s, AV_LOG_ERROR, "Failed to alloc %zu bytes\n", sizeof(ID3v2ExtraMetaGEOB));
+        return;
+    }
+
+    new_extra = av_mallocz(sizeof(ID3v2ExtraMeta));
+    if (!new_extra) {
+        av_log(s, AV_LOG_ERROR, "Failed to alloc %zu bytes\n", sizeof(ID3v2ExtraMeta));
+        goto fail;
+    }
+
+    /* read encoding type byte */
+    encoding = avio_r8(pb);
+    taglen--;
+
+    /* read MIME type (always ISO-8859) */
+    if (decode_str(s, pb, ID3v2_ENCODING_ISO8859, &geob_data->mime_type, NULL, &taglen, 1) < 0
+        || taglen <= 0)
+        goto fail;
+
+    /* read file name */
+    if (decode_str(s, pb, encoding, &geob_data->file_name, NULL, &taglen, 1) < 0
+        || taglen <= 0)
+        goto fail;
+
+    /* read content description */
+    if (decode_str(s, pb, encoding, &geob_data->description, NULL, &taglen, 1) < 0
+        || taglen < 0)
+        goto fail;
+
+    if (taglen) {
+        /* save encapsulated binary data */
+        geob_data->data = av_malloc(taglen);
+        if (!geob_data->data) {
+            av_log(s, AV_LOG_ERROR, "Failed to alloc %d bytes\n", taglen);
+            goto fail;
+        }
+        if ((len = avio_read(pb, geob_data->data, taglen)) < taglen)
+            av_log(s, AV_LOG_WARNING, "Error reading GEOB frame, data truncated.\n");
+        geob_data->datasize = len;
+    } else {
+        geob_data->data = NULL;
+        geob_data->datasize = 0;
+    }
+
+    /* add data to the list */
+    new_extra->tag = "GEOB";
+    new_extra->data = geob_data;
+    new_extra->next = *extra_meta;
+    *extra_meta = new_extra;
+
+    return;
+
+fail:
+    av_log(s, AV_LOG_ERROR, "Error reading frame %s, skipped\n", tag);
+    free_geobtag(geob_data);
+    av_free(new_extra);
+    return;
 }
 
 static int is_number(const char *str)
@@ -189,7 +331,27 @@ finish:
         av_dict_set(m, "date", date, 0);
 }
 
-static void ff_id3v2_parse(AVFormatContext *s, int len, uint8_t version, uint8_t flags)
+/**
+ * Get the corresponding ID3v2EMFunc struct for a tag.
+ * @param isv34 Determines if v2.2 or v2.3/4 strings are used
+ * @return A pointer to the ID3v2EMFunc struct if found, NULL otherwise.
+ */
+static const ID3v2EMFunc *get_extra_meta_func(const char *tag, int isv34)
+{
+    int i = 0;
+    while (ff_id3v2_extra_meta_funcs[i].tag3) {
+        if (!memcmp(tag,
+                    (isv34 ?
+                        ff_id3v2_extra_meta_funcs[i].tag4 :
+                        ff_id3v2_extra_meta_funcs[i].tag3),
+                    (isv34 ? 4 : 3)))
+            return &ff_id3v2_extra_meta_funcs[i];
+        i++;
+    }
+    return NULL;
+}
+
+static void ff_id3v2_parse(AVFormatContext *s, int len, uint8_t version, uint8_t flags, ID3v2ExtraMeta **extra_meta)
 {
     int isv34, unsync;
     unsigned tlen;
@@ -198,8 +360,10 @@ static void ff_id3v2_parse(AVFormatContext *s, int len, uint8_t version, uint8_t
     int taghdrlen;
     const char *reason = NULL;
     AVIOContext pb;
+    AVIOContext *pbx;
     unsigned char *buffer = NULL;
     int buffer_size = 0;
+    void (*extra_func)(AVFormatContext*, AVIOContext*, int, char*, ID3v2ExtraMeta**) = NULL;
 
     switch (version) {
     case 2:
@@ -264,7 +428,8 @@ static void ff_id3v2_parse(AVFormatContext *s, int len, uint8_t version, uint8_t
         if (tflags & (ID3v2_FLAG_ENCRYPTION | ID3v2_FLAG_COMPRESSION)) {
             av_log(s, AV_LOG_WARNING, "Skipping encrypted/compressed ID3v2 frame %s.\n", tag);
             avio_skip(s->pb, tlen);
-        } else if (tag[0] == 'T') {
+        /* check for text tag or supported special meta tag */
+        } else if (tag[0] == 'T' || (extra_meta && (extra_func = get_extra_meta_func(tag, isv34)->read))) {
             if (unsync || tunsync) {
                 int i, j;
                 av_fast_malloc(&buffer, &buffer_size, tlen);
@@ -280,10 +445,17 @@ static void ff_id3v2_parse(AVFormatContext *s, int len, uint8_t version, uint8_t
                     }
                 }
                 ffio_init_context(&pb, buffer, j, 0, NULL, NULL, NULL, NULL);
-                read_ttag(s, &pb, j, tag);
+                tlen = j;
+                pbx = &pb; // read from sync buffer
             } else {
-                read_ttag(s, s->pb, tlen, tag);
+                pbx = s->pb; // read straight from input
             }
+            if (tag[0] == 'T')
+                /* parse text tag */
+                read_ttag(s, pbx, tlen, tag);
+            else
+                /* parse special meta tag */
+                extra_func(s, pbx, tlen, tag, extra_meta);
         }
         else if (!tag[0]) {
             if (tag[1])
@@ -307,7 +479,7 @@ seek:
     return;
 }
 
-void ff_id3v2_read(AVFormatContext *s, const char *magic)
+void ff_id3v2_read_all(AVFormatContext *s, const char *magic, ID3v2ExtraMeta **extra_meta)
 {
     int len, ret;
     uint8_t buf[ID3v2_HEADER_SIZE];
@@ -327,7 +499,7 @@ void ff_id3v2_read(AVFormatContext *s, const char *magic)
                   ((buf[7] & 0x7f) << 14) |
                   ((buf[8] & 0x7f) << 7) |
                    (buf[9] & 0x7f);
-            ff_id3v2_parse(s, len, buf[3], buf[5]);
+            ff_id3v2_parse(s, len, buf[3], buf[5], extra_meta);
         } else {
             avio_seek(s->pb, off, SEEK_SET);
         }
@@ -338,6 +510,30 @@ void ff_id3v2_read(AVFormatContext *s, const char *magic)
     merge_date(&s->metadata);
 }
 
+void ff_id3v2_read(AVFormatContext *s, const char *magic)
+{
+    ff_id3v2_read_all(s, magic, NULL);
+}
+
+void ff_id3v2_free_extra_meta(ID3v2ExtraMeta **extra_meta)
+{
+    ID3v2ExtraMeta *current = *extra_meta, *next;
+    void (*free_func)(ID3v2ExtraMeta*);
+
+    while (current) {
+        if ((free_func = get_extra_meta_func(current->tag, 1)->free))
+            free_func(current->data);
+        next = current->next;
+        av_freep(&current);
+        current = next;
+    }
+}
+
+const ID3v2EMFunc ff_id3v2_extra_meta_funcs[] = {
+    { "GEO", "GEOB", read_geobtag, free_geobtag },
+    { NULL }
+};
+
 const AVMetadataConv ff_id3v2_34_metadata_conv[] = {
     { "TALB", "album"},
     { "TCOM", "composer"},

libavformat/id3v2.h

@@ -45,6 +45,27 @@ enum ID3v2Encoding {
     ID3v2_ENCODING_UTF8     = 3,
 };
 
+typedef struct ID3v2ExtraMeta {
+    const char *tag;
+    void *data;
+    struct ID3v2ExtraMeta *next;
+} ID3v2ExtraMeta;
+
+typedef struct ID3v2ExtraMetaGEOB {
+    uint32_t datasize;
+    uint8_t *mime_type;
+    uint8_t *file_name;
+    uint8_t *description;
+    uint8_t *data;
+} ID3v2ExtraMetaGEOB;
+
+typedef struct ID3v2EMFunc {
+    const char *tag3;
+    const char *tag4;
+    void (*read)(AVFormatContext*, AVIOContext*, int, char*, ID3v2ExtraMeta **);
+    void (*free)();
+} ID3v2EMFunc;
+
 /**
  * Detect ID3v2 Header.
  * @param buf   must be ID3v2_HEADER_SIZE byte long
@@ -61,10 +82,25 @@ int ff_id3v2_match(const uint8_t *buf, const char *magic);
 int ff_id3v2_tag_len(const uint8_t *buf);
 
 /**
- * Read an ID3v2 tag
+ * Read an ID3v2 tag (text tags only)
  */
 void ff_id3v2_read(AVFormatContext *s, const char *magic);
 
+/**
+ * Read an ID3v2 tag, including supported extra metadata (currently only GEOB)
+ * @param extra_meta If not NULL, extra metadata is parsed into a list of
+ * ID3v2ExtraMeta structs and *extra_meta points to the head of the list
+ */
+void ff_id3v2_read_all(AVFormatContext *s, const char *magic, ID3v2ExtraMeta **extra_meta);
+
+/**
+ * Free memory allocated parsing special (non-text) metadata.
+ * @param extra_meta Pointer to a pointer to the head of a ID3v2ExtraMeta list, *extra_meta is set to NULL.
+ */
+void ff_id3v2_free_extra_meta(ID3v2ExtraMeta **extra_meta);
+
+extern const ID3v2EMFunc ff_id3v2_extra_meta_funcs[];
+
 extern const AVMetadataConv ff_id3v2_34_metadata_conv[];
 extern const AVMetadataConv ff_id3v2_4_metadata_conv[];
 extern const AVMetadataConv ff_id3v2_2_metadata_conv[];

libavformat/mov.c

@@ -2629,8 +2629,6 @@ static int mov_read_close(AVFormatContext *s)
         av_freep(&sc->drefs);
         if (sc->pb && sc->pb != s->pb)
             avio_close(sc->pb);
-
-        av_freep(&st->codec->palctrl);
     }
 
     if (mov->dv_demux) {

libavformat/mpegts.c

@@ -1444,7 +1444,7 @@ static int handle_packets(MpegTSContext *ts, int nb_packets)
 
     if (avio_tell(s->pb) != ts->last_pos) {
         int i;
-//        av_dlog("Skipping after seek\n");
+        av_dlog(ts->stream, "Skipping after seek\n");
         /* seek detected, flush pes buffer */
         for (i = 0; i < NB_PID_MAX; i++) {
             if (ts->pids[i]) {

libavformat/oma.c

@@ -3,6 +3,7 @@
  *
  * Copyright (c) 2008 Maxim Poliakovski
  *               2008 Benjamin Larsson
+ *               2011 David Goldwich
  *
  * This file is part of FFmpeg.
  *
@@ -36,20 +37,19 @@
  * - Sound data organized in packets follow the EA3 header
  *   (can be encrypted using the Sony DRM!).
  *
- * LIMITATIONS: This version supports only plain (unencrypted) OMA files.
- * If any DRM-protected (encrypted) file is encountered you will get the
- * corresponding error message. Try to remove the encryption using any
- * Sony software (for example SonicStage).
  * CODEC SUPPORT: Only ATRAC3 codec is currently supported!
  */
 
 #include "avformat.h"
 #include "libavutil/intreadwrite.h"
+#include "libavutil/des.h"
 #include "pcm.h"
 #include "riff.h"
 #include "id3v2.h"
 
 #define EA3_HEADER_SIZE 96
+#define ID3v2_EA3_MAGIC "ea3"
+#define OMA_ENC_HEADER_SIZE 16
 
 enum {
     OMA_CODECID_ATRAC3  = 0,
@@ -65,7 +65,211 @@ static const AVCodecTag codec_oma_tags[] = {
     { CODEC_ID_MP3,     OMA_CODECID_MP3 },
 };
 
-#define ID3v2_EA3_MAGIC "ea3"
+static const uint64_t leaf_table[] = {
+    0xd79e8283acea4620, 0x7a9762f445afd0d8,
+    0x354d60a60b8c79f1, 0x584e1cde00b07aee,
+    0x1573cd93da7df623, 0x47f98d79620dd535
+};
+
+typedef struct OMAContext {
+    uint64_t content_start;
+    int encrypted;
+    uint16_t k_size;
+    uint16_t e_size;
+    uint16_t i_size;
+    uint16_t s_size;
+    uint32_t rid;
+    uint8_t r_val[24];
+    uint8_t n_val[24];
+    uint8_t m_val[8];
+    uint8_t s_val[8];
+    uint8_t sm_val[8];
+    uint8_t e_val[8];
+    uint8_t iv[8];
+    struct AVDES av_des;
+} OMAContext;
+
+static void hex_log(AVFormatContext *s, int level, const char *name, const uint8_t *value, int len)
+{
+    char buf[33];
+    len = FFMIN(len, 16);
+    if (av_log_get_level() < level)
+        return;
+    ff_data_to_hex(buf, value, len, 1);
+    buf[len<<1] = '\0';
+    av_log(s, level, "%s: %s\n", name, buf);
+}
+
+static int kset(AVFormatContext *s, const uint8_t *r_val, const uint8_t *n_val, int len)
+{
+    OMAContext *oc = s->priv_data;
+
+    if (!r_val && !n_val)
+        return -1;
+
+    len = FFMIN(len, 16);
+
+    /* use first 64 bits in the third round again */
+    if (r_val) {
+        if (r_val != oc->r_val) {
+            memset(oc->r_val, 0, 24);
+            memcpy(oc->r_val, r_val, len);
+        }
+        memcpy(&oc->r_val[16], r_val, 8);
+    }
+    if (n_val) {
+        if (n_val != oc->n_val) {
+            memset(oc->n_val, 0, 24);
+            memcpy(oc->n_val, n_val, len);
+        }
+        memcpy(&oc->n_val[16], n_val, 8);
+    }
+
+    return 0;
+}
+
+static int rprobe(AVFormatContext *s, uint8_t *enc_header, const uint8_t *r_val)
+{
+    OMAContext *oc = s->priv_data;
+    unsigned int pos;
+    struct AVDES av_des;
+
+    if (!enc_header || !r_val)
+        return -1;
+
+    /* m_val */
+    av_des_init(&av_des, r_val, 192, 1);
+    av_des_crypt(&av_des, oc->m_val, &enc_header[48], 1, NULL, 1);
+
+    /* s_val */
+    av_des_init(&av_des, oc->m_val, 64, 0);
+    av_des_crypt(&av_des, oc->s_val, NULL, 1, NULL, 0);
+
+    /* sm_val */
+    pos = OMA_ENC_HEADER_SIZE + oc->k_size + oc->e_size;
+    av_des_init(&av_des, oc->s_val, 64, 0);
+    av_des_mac(&av_des, oc->sm_val, &enc_header[pos], (oc->i_size >> 3));
+
+    pos += oc->i_size;
+
+    return memcmp(&enc_header[pos], oc->sm_val, 8) ? -1 : 0;
+}
+
+static int nprobe(AVFormatContext *s, uint8_t *enc_header, const uint8_t *n_val)
+{
+    OMAContext *oc = s->priv_data;
+    uint32_t pos, taglen, datalen;
+    struct AVDES av_des;
+
+    if (!enc_header || !n_val)
+        return -1;
+
+    pos = OMA_ENC_HEADER_SIZE + oc->k_size;
+    if (!memcmp(&enc_header[pos], "EKB ", 4))
+        pos += 32;
+
+    if (AV_RB32(&enc_header[pos]) != oc->rid)
+        av_log(s, AV_LOG_DEBUG, "Mismatching RID\n");
+
+    taglen = AV_RB32(&enc_header[pos+32]);
+    datalen = AV_RB32(&enc_header[pos+36]) >> 4;
+
+    pos += 44 + taglen;
+
+    av_des_init(&av_des, n_val, 192, 1);
+    while (datalen-- > 0) {
+        av_des_crypt(&av_des, oc->r_val, &enc_header[pos], 2, NULL, 1);
+        kset(s, oc->r_val, NULL, 16);
+        if (!rprobe(s, enc_header, oc->r_val))
+            return 0;
+        pos += 16;
+    }
+
+    return -1;
+}
+
+static int decrypt_init(AVFormatContext *s, ID3v2ExtraMeta *em, uint8_t *header)
+{
+    OMAContext *oc = s->priv_data;
+    ID3v2ExtraMetaGEOB *geob = NULL;
+    uint8_t *gdata;
+
+    oc->encrypted = 1;
+    av_log(s, AV_LOG_INFO, "File is encrypted\n");
+
+    /* find GEOB metadata */
+    while (em) {
+        if (!strcmp(em->tag, "GEOB") &&
+            (geob = em->data) &&
+            !strcmp(geob->description, "OMG_LSI") ||
+            !strcmp(geob->description, "OMG_BKLSI")) {
+            break;
+        }
+        em = em->next;
+    }
+    if (!em) {
+        av_log(s, AV_LOG_ERROR, "No encryption header found\n");
+        return -1;
+    }
+
+    if (geob->datasize < 64) {
+        av_log(s, AV_LOG_ERROR, "Invalid GEOB data size: %u\n", geob->datasize);
+        return -1;
+    }
+
+    gdata = geob->data;
+
+    if (AV_RB16(gdata) != 1)
+        av_log(s, AV_LOG_WARNING, "Unknown version in encryption header\n");
+
+    oc->k_size = AV_RB16(&gdata[2]);
+    oc->e_size = AV_RB16(&gdata[4]);
+    oc->i_size = AV_RB16(&gdata[6]);
+    oc->s_size = AV_RB16(&gdata[8]);
+
+    if (memcmp(&gdata[OMA_ENC_HEADER_SIZE], "KEYRING     ", 12)) {
+        av_log(s, AV_LOG_ERROR, "Invalid encryption header\n");
+        return -1;
+    }
+    oc->rid = AV_RB32(&gdata[OMA_ENC_HEADER_SIZE + 28]);
+    av_log(s, AV_LOG_DEBUG, "RID: %.8x\n", oc->rid);
+
+    memcpy(oc->iv, &header[0x58], 8);
+    hex_log(s, AV_LOG_DEBUG, "IV", oc->iv, 8);
+
+    hex_log(s, AV_LOG_DEBUG, "CBC-MAC", &gdata[OMA_ENC_HEADER_SIZE+oc->k_size+oc->e_size+oc->i_size], 8);
+
+    if (s->keylen > 0) {
+        kset(s, s->key, s->key, s->keylen);
+    }
+    if (!memcmp(oc->r_val, (const uint8_t[8]){0}, 8) ||
+        rprobe(s, gdata, oc->r_val) < 0 &&
+        nprobe(s, gdata, oc->n_val) < 0) {
+        int i;
+        for (i = 0; i < sizeof(leaf_table); i += 2) {
+            uint8_t buf[16];
+            AV_WL64(buf, leaf_table[i]);
+            AV_WL64(&buf[8], leaf_table[i+1]);
+            kset(s, buf, buf, 16);
+            if (!rprobe(s, gdata, oc->r_val) || !nprobe(s, gdata, oc->n_val))
+                break;
+        }
+        if (i >= sizeof(leaf_table)) {
+            av_log(s, AV_LOG_ERROR, "Invalid key\n");
+            return -1;
+        }
+    }
+
+    /* e_val */
+    av_des_init(&oc->av_des, oc->m_val, 64, 0);
+    av_des_crypt(&oc->av_des, oc->e_val, &gdata[OMA_ENC_HEADER_SIZE + 40], 1, NULL, 0);
+    hex_log(s, AV_LOG_DEBUG, "EK", oc->e_val, 8);
+
+    /* init e_val */
+    av_des_init(&oc->av_des, oc->e_val, 64, 1);
+
+    return 0;
+}
 
 static int oma_read_header(AVFormatContext *s,
                            AVFormatParameters *ap)
@@ -77,8 +281,10 @@ static int oma_read_header(AVFormatContext *s,
     uint8_t buf[EA3_HEADER_SIZE];
     uint8_t *edata;
     AVStream *st;
+    ID3v2ExtraMeta *extra_meta = NULL;
+    OMAContext *oc = s->priv_data;
 
-    ff_id3v2_read(s, ID3v2_EA3_MAGIC);
+    ff_id3v2_read_all(s, ID3v2_EA3_MAGIC, &extra_meta);
     ret = avio_read(s->pb, buf, EA3_HEADER_SIZE);
     if (ret < EA3_HEADER_SIZE)
         return -1;
@@ -88,12 +294,17 @@ static int oma_read_header(AVFormatContext *s,
         return -1;
     }
 
+    oc->content_start = avio_tell(s->pb);
+
+    /* encrypted file */
     eid = AV_RB16(&buf[6]);
-    if (eid != -1 && eid != -128) {
-        av_log(s, AV_LOG_ERROR, "Encrypted file! Eid: %d\n", eid);
+    if (eid != -1 && eid != -128 && decrypt_init(s, extra_meta, buf) < 0) {
+        ff_id3v2_free_extra_meta(&extra_meta);
         return -1;
     }
 
+    ff_id3v2_free_extra_meta(&extra_meta);
+
     codec_params = AV_RB24(&buf[33]);
 
     st = av_new_stream(s, 0);
@@ -159,12 +370,20 @@ static int oma_read_header(AVFormatContext *s,
 
 static int oma_read_packet(AVFormatContext *s, AVPacket *pkt)
 {
-    int ret = av_get_packet(s->pb, pkt, s->streams[0]->codec->block_align);
+    OMAContext *oc = s->priv_data;
+    int packet_size = s->streams[0]->codec->block_align;
+    int ret = av_get_packet(s->pb, pkt, packet_size);
 
-    pkt->stream_index = 0;
     if (ret <= 0)
         return AVERROR(EIO);
 
+    pkt->stream_index = 0;
+
+    if (oc->encrypted) {
+        /* previous unencrypted block saved in IV for the next packet (CBC mode) */
+        av_des_crypt(&oc->av_des, pkt->data, pkt->data, (packet_size >> 3), oc->iv, 1);
+    }
+
     return ret;
 }
 
@@ -190,16 +409,38 @@ static int oma_read_probe(AVProbeData *p)
         return 0;
 }
 
+static int oma_read_seek(struct AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
+{
+    OMAContext *oc = s->priv_data;
+
+    pcm_read_seek(s, stream_index, timestamp, flags);
+
+    if (oc->encrypted) {
+        /* readjust IV for CBC */
+        int64_t pos = avio_tell(s->pb);
+        if (pos < oc->content_start)
+            memset(oc->iv, 0, 8);
+        else {
+            if (avio_seek(s->pb, -8, SEEK_CUR) < 0 || avio_read(s->pb, oc->iv, 8) < 8) {
+                memset(oc->iv, 0, 8);
+                return -1;
+            }
+        }
+    }
+
+    return 0;
+}
 
 AVInputFormat ff_oma_demuxer = {
     .name           = "oma",
     .long_name      = NULL_IF_CONFIG_SMALL("Sony OpenMG audio"),
+    .priv_data_size = sizeof(OMAContext),
     .read_probe     = oma_read_probe,
     .read_header    = oma_read_header,
     .read_packet    = oma_read_packet,
-    .read_seek      = pcm_read_seek,
-    .flags= AVFMT_GENERIC_INDEX,
-    .extensions = "oma,aa3",
-    .codec_tag= (const AVCodecTag* const []){codec_oma_tags, 0},
+    .read_seek      = oma_read_seek,
+    .flags          = AVFMT_GENERIC_INDEX,
+    .extensions     = "oma,omg,aa3",
+    .codec_tag      = (const AVCodecTag* const []){codec_oma_tags, 0},
 };
 

libavformat/swfdec.c

@@ -136,8 +136,9 @@ static int swf_read_packet(AVFormatContext *s, AVPacket *pkt)
             ast->need_parsing = AVSTREAM_PARSE_FULL;
             sample_rate_code= (v>>2) & 3;
             if (!sample_rate_code)
-                return AVERROR(EIO);
-            ast->codec->sample_rate = 11025 << (sample_rate_code-1);
+                ast->codec->sample_rate = 5512;
+            else
+                ast->codec->sample_rate = 11025 << (sample_rate_code-1);
             av_set_pts_info(ast, 64, 1, ast->codec->sample_rate);
             len -= 4;
         } else if (tag == TAG_VIDEOFRAME) {

libavutil/des.c

@@ -298,7 +298,7 @@ int av_des_init(AVDES *d, const uint8_t *key, int key_bits, int decrypt) {
     return 0;
 }
 
-void av_des_crypt(AVDES *d, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt) {
+static void av_des_crypt_mac(AVDES *d, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt, int mac) {
     uint64_t iv_val = iv ? AV_RB64(iv) : 0;
     while (count-- > 0) {
         uint64_t dst_val;
@@ -321,12 +321,21 @@ void av_des_crypt(AVDES *d, uint8_t *dst, const uint8_t *src, int count, uint8_t
         }
         AV_WB64(dst, dst_val);
         src += 8;
-        dst += 8;
+        if (!mac)
+            dst += 8;
     }
     if (iv)
         AV_WB64(iv, iv_val);
 }
 
+void av_des_crypt(AVDES *d, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt) {
+    av_des_crypt_mac(d, dst, src, count, iv, decrypt, 0);
+}
+
+void av_des_mac(AVDES *d, uint8_t *dst, const uint8_t *src, int count) {
+    av_des_crypt_mac(d, dst, src, count, (uint8_t[8]){0}, 0, 1);
+}
+
 #ifdef TEST
 #undef printf
 #undef rand

libavutil/des.h

@@ -33,7 +33,7 @@ struct AVDES {
  * @brief Initializes an AVDES context.
  *
  * @param key_bits must be 64 or 192
- * @param decrypt 0 for encryption, 1 for decryption
+ * @param decrypt 0 for encryption/CBC-MAC, 1 for decryption
  */
 int av_des_init(struct AVDES *d, const uint8_t *key, int key_bits, int decrypt);
 
@@ -49,4 +49,13 @@ int av_des_init(struct AVDES *d, const uint8_t *key, int key_bits, int decrypt);
  */
 void av_des_crypt(struct AVDES *d, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt);
 
+/**
+ * @brief Calculates CBC-MAC using the DES algorithm.
+ *
+ * @param count number of 8 byte blocks
+ * @param dst destination array, can be equal to src, must be 8-byte aligned
+ * @param src source array, can be equal to dst, must be 8-byte aligned, may be NULL
+ */
+void av_des_mac(struct AVDES *d, uint8_t *dst, const uint8_t *src, int count);
+
 #endif /* AVUTIL_DES_H */