Rename several directories to use MixedCase instead of lowercase.

They now mostly match the case used in #includes,
and they're consistent with the names of the .h files they contain.


git-svn-id: https://mpc-hc.svn.sourceforge.net/svnroot/mpc-hc/trunk@1648 10f7b99b-c216-0410-bff0-8a66a9350fd8

1 files changed, 207 insertions, 0 deletions

diff --git a/src/filters/transform/MPCVideoDec/ffmpeg/libavcodec/ac3_parser.c b/src/filters/transform/MPCVideoDec/ffmpeg/libavcodec/ac3_parser.c
new file mode 100644
index 000000000..6331b64da
--- /dev/null
+++ b/src/filters/transform/MPCVideoDec/ffmpeg/libavcodec/ac3_parser.c
@@ -0,0 +1,207 @@
+/*

+ * AC-3 parser

+ * Copyright (c) 2003 Fabrice Bellard

+ * Copyright (c) 2003 Michael Niedermayer

+ *

+ * 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

+ */

+

+#include "parser.h"

+#include "ac3_parser.h"

+#include "aac_ac3_parser.h"

+#include "get_bits.h"

+

+

+#define AC3_HEADER_SIZE 7

+

+

+static const uint8_t eac3_blocks[4] = {

+    1, 2, 3, 6

+};

+

+

+int ff_ac3_parse_header(GetBitContext *gbc, AC3HeaderInfo *hdr)

+{

+    int frame_size_code;

+

+    memset(hdr, 0, sizeof(*hdr));

+

+    hdr->sync_word = get_bits(gbc, 16);

+    if(hdr->sync_word != 0x0B77)

+        return AAC_AC3_PARSE_ERROR_SYNC;

+

+    /* read ahead to bsid to distinguish between AC-3 and E-AC-3 */

+    hdr->bitstream_id = show_bits_long(gbc, 29) & 0x1F;

+    if(hdr->bitstream_id > 16)

+        return AAC_AC3_PARSE_ERROR_BSID;

+

+    hdr->num_blocks = 6;

+

+    /* set default mix levels */

+    hdr->center_mix_level   = 1;  // -4.5dB

+    hdr->surround_mix_level = 1;  // -6.0dB

+

+    if(hdr->bitstream_id <= 10) {

+        /* Normal AC-3 */

+        hdr->crc1 = get_bits(gbc, 16);

+        hdr->sr_code = get_bits(gbc, 2);

+        if(hdr->sr_code == 3)

+            return AAC_AC3_PARSE_ERROR_SAMPLE_RATE;

+

+        frame_size_code = get_bits(gbc, 6);

+        if(frame_size_code > 37)

+            return AAC_AC3_PARSE_ERROR_FRAME_SIZE;

+

+        skip_bits(gbc, 5); // skip bsid, already got it

+

+        skip_bits(gbc, 3); // skip bitstream mode

+        hdr->channel_mode = get_bits(gbc, 3);

+

+        if(hdr->channel_mode == AC3_CHMODE_STEREO) {

+            skip_bits(gbc, 2); // skip dsurmod

+        } else {

+            if((hdr->channel_mode & 1) && hdr->channel_mode != AC3_CHMODE_MONO)

+                hdr->center_mix_level = get_bits(gbc, 2);

+            if(hdr->channel_mode & 4)

+                hdr->surround_mix_level = get_bits(gbc, 2);

+        }

+        hdr->lfe_on = get_bits1(gbc);

+

+        hdr->sr_shift = FFMAX(hdr->bitstream_id, 8) - 8;

+        hdr->sample_rate = ff_ac3_sample_rate_tab[hdr->sr_code] >> hdr->sr_shift;

+        hdr->bit_rate = (ff_ac3_bitrate_tab[frame_size_code>>1] * 1000) >> hdr->sr_shift;

+        hdr->channels = ff_ac3_channels_tab[hdr->channel_mode] + hdr->lfe_on;

+        hdr->frame_size = ff_ac3_frame_size_tab[frame_size_code][hdr->sr_code] * 2;

+        hdr->frame_type = EAC3_FRAME_TYPE_AC3_CONVERT; //EAC3_FRAME_TYPE_INDEPENDENT;

+        hdr->substreamid = 0;

+    } else {

+        /* Enhanced AC-3 */

+        hdr->crc1 = 0;

+        hdr->frame_type = get_bits(gbc, 2);

+        if(hdr->frame_type == EAC3_FRAME_TYPE_RESERVED)

+            return AAC_AC3_PARSE_ERROR_FRAME_TYPE;

+

+        hdr->substreamid = get_bits(gbc, 3);

+

+        hdr->frame_size = (get_bits(gbc, 11) + 1) << 1;

+        if(hdr->frame_size < AC3_HEADER_SIZE)

+            return AAC_AC3_PARSE_ERROR_FRAME_SIZE;

+

+        hdr->sr_code = get_bits(gbc, 2);

+        if (hdr->sr_code == 3) {

+            int sr_code2 = get_bits(gbc, 2);

+            if(sr_code2 == 3)

+                return AAC_AC3_PARSE_ERROR_SAMPLE_RATE;

+            hdr->sample_rate = ff_ac3_sample_rate_tab[sr_code2] / 2;

+            hdr->sr_shift = 1;

+        } else {

+            hdr->num_blocks = eac3_blocks[get_bits(gbc, 2)];

+            hdr->sample_rate = ff_ac3_sample_rate_tab[hdr->sr_code];

+            hdr->sr_shift = 0;

+        }

+

+        hdr->channel_mode = get_bits(gbc, 3);

+        hdr->lfe_on = get_bits1(gbc);

+

+        hdr->bit_rate = (uint32_t)(8.0 * hdr->frame_size * hdr->sample_rate /

+                        (hdr->num_blocks * 256.0));

+        hdr->channels = ff_ac3_channels_tab[hdr->channel_mode] + hdr->lfe_on;

+    }

+    hdr->channel_layout = ff_ac3_channel_layout_tab[hdr->channel_mode];

+    if (hdr->lfe_on)

+        hdr->channel_layout |= CH_LOW_FREQUENCY;

+

+    return 0;

+}

+

+int ff_ac3_parse_header_full(GetBitContext *gbc, AC3HeaderInfo *hdr){

+    int ret, i;

+    ret = ff_ac3_parse_header(gbc, hdr);

+    if(!ret){

+        if(hdr->bitstream_id>10){

+            /* Enhanced AC-3 */

+            skip_bits(gbc, 5); // skip bitstream id

+

+            /* skip dialog normalization and compression gain */

+            for (i = 0; i < (hdr->channel_mode ? 1 : 2); i++) {

+                skip_bits(gbc, 5); // skip dialog normalization

+                if (get_bits1(gbc)) {

+                    skip_bits(gbc, 8); //skip Compression gain word

+                }

+            }

+            /* dependent stream channel map */

+            if (hdr->frame_type == EAC3_FRAME_TYPE_DEPENDENT && get_bits1(gbc)) {

+                    hdr->channel_map = get_bits(gbc, 16); //custom channel map

+                    return 0;

+            }

+        }

+        //default channel map based on acmod and lfeon

+        hdr->channel_map = ff_eac3_default_chmap[hdr->channel_mode];

+        if(hdr->lfe_on)

+            hdr->channel_map |= AC3_CHMAP_LFE;

+    }

+    return ret;

+}

+

+static int ac3_sync(uint64_t state, AACAC3ParseContext *hdr_info,

+        int *need_next_header, int *new_frame_start)

+{

+    int err;

+    union {

+        uint64_t u64;

+        uint8_t  u8[8];

+    } tmp = { be2me_64(state) };

+    AC3HeaderInfo hdr;

+    GetBitContext gbc;

+

+    init_get_bits(&gbc, tmp.u8+8-AC3_HEADER_SIZE, 54);

+    err = ff_ac3_parse_header(&gbc, &hdr);

+

+    if(err < 0)

+        return 0;

+

+    hdr_info->sample_rate = hdr.sample_rate;

+    hdr_info->bit_rate = hdr.bit_rate;

+    hdr_info->channels = hdr.channels;

+    hdr_info->channel_layout = hdr.channel_layout;

+    hdr_info->samples = hdr.num_blocks * 256;

+    if(hdr.bitstream_id>10)

+        hdr_info->codec_id = CODEC_ID_EAC3;

+    else

+        hdr_info->codec_id = CODEC_ID_AC3;

+

+    *need_next_header = (hdr.frame_type != EAC3_FRAME_TYPE_AC3_CONVERT);

+    *new_frame_start  = (hdr.frame_type != EAC3_FRAME_TYPE_DEPENDENT);

+    return hdr.frame_size;

+}

+

+static av_cold int ac3_parse_init(AVCodecParserContext *s1)

+{

+    AACAC3ParseContext *s = s1->priv_data;

+    s->header_size = AC3_HEADER_SIZE;

+    s->sync = ac3_sync;

+    return 0;

+}

+

+

+AVCodecParser ac3_parser = {

+    { CODEC_ID_AC3, CODEC_ID_EAC3 },

+    sizeof(AACAC3ParseContext),

+    ac3_parse_init,

+    ff_aac_ac3_parse,

+    ff_parse_close,

+};