making act segmenter

1 files changed, 0 insertions, 230 deletions

diff --git a/ffmpeg1/libavformat/latmenc.c b/ffmpeg1/libavformat/latmenc.c
deleted file mode 100644
index 9dfb4e4..0000000
--- a/ffmpeg1/libavformat/latmenc.c
+++ /dev/null
@@ -1,230 +0,0 @@
-/*
- * LATM/LOAS muxer
- * Copyright (c) 2011 Kieran Kunhya <kieran@kunhya.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
- */
-
-#include "libavcodec/get_bits.h"
-#include "libavcodec/put_bits.h"
-#include "libavcodec/avcodec.h"
-#include "libavcodec/mpeg4audio.h"
-#include "libavutil/opt.h"
-#include "avformat.h"
-#include "rawenc.h"
-
-#define MAX_EXTRADATA_SIZE 1024
-
-typedef struct {
-    AVClass *av_class;
-    int off;
-    int channel_conf;
-    int object_type;
-    int counter;
-    int mod;
-    uint8_t buffer[0x1fff + MAX_EXTRADATA_SIZE + 1024];
-} LATMContext;
-
-static const AVOption options[] = {
-    {"smc-interval", "StreamMuxConfig interval.",
-     offsetof(LATMContext, mod), AV_OPT_TYPE_INT, {.i64 = 0x0014}, 0x0001, 0xffff, AV_OPT_FLAG_ENCODING_PARAM},
-    {NULL},
-};
-
-static const AVClass latm_muxer_class = {
-    .class_name = "LATM/LOAS muxer",
-    .item_name  = av_default_item_name,
-    .option     = options,
-    .version    = LIBAVUTIL_VERSION_INT,
-};
-
-static int latm_decode_extradata(LATMContext *ctx, uint8_t *buf, int size)
-{
-    MPEG4AudioConfig m4ac;
-
-    if (size > MAX_EXTRADATA_SIZE) {
-        av_log(ctx, AV_LOG_ERROR, "Extradata is larger than currently supported.\n");
-        return AVERROR_INVALIDDATA;
-    }
-    ctx->off = avpriv_mpeg4audio_get_config(&m4ac, buf, size * 8, 1);
-    if (ctx->off < 0)
-        return ctx->off;
-
-    if (ctx->object_type == AOT_ALS && (ctx->off & 7)) {
-        // as long as avpriv_mpeg4audio_get_config works correctly this is impossible
-        av_log(ctx, AV_LOG_ERROR, "BUG: ALS offset is not byte-aligned\n");
-        return AVERROR_INVALIDDATA;
-    }
-    /* FIXME: are any formats not allowed in LATM? */
-
-    if (m4ac.object_type > AOT_SBR && m4ac.object_type != AOT_ALS) {
-        av_log(ctx, AV_LOG_ERROR, "Muxing MPEG-4 AOT %d in LATM is not supported\n", m4ac.object_type);
-        return AVERROR_INVALIDDATA;
-    }
-    ctx->channel_conf = m4ac.chan_config;
-    ctx->object_type  = m4ac.object_type;
-
-    return 0;
-}
-
-static int latm_write_header(AVFormatContext *s)
-{
-    LATMContext *ctx = s->priv_data;
-    AVCodecContext *avctx = s->streams[0]->codec;
-
-    if (avctx->codec_id == AV_CODEC_ID_AAC_LATM)
-        return 0;
-
-    if (avctx->extradata_size > 0 &&
-        latm_decode_extradata(ctx, avctx->extradata, avctx->extradata_size) < 0)
-        return AVERROR_INVALIDDATA;
-
-    return 0;
-}
-
-static void latm_write_frame_header(AVFormatContext *s, PutBitContext *bs)
-{
-    LATMContext *ctx = s->priv_data;
-    AVCodecContext *avctx = s->streams[0]->codec;
-    int header_size;
-
-    /* AudioMuxElement */
-    put_bits(bs, 1, !!ctx->counter);
-
-    if (!ctx->counter) {
-        /* StreamMuxConfig */
-        put_bits(bs, 1, 0); /* audioMuxVersion */
-        put_bits(bs, 1, 1); /* allStreamsSameTimeFraming */
-        put_bits(bs, 6, 0); /* numSubFrames */
-        put_bits(bs, 4, 0); /* numProgram */
-        put_bits(bs, 3, 0); /* numLayer */
-
-        /* AudioSpecificConfig */
-        if (ctx->object_type == AOT_ALS) {
-            header_size = avctx->extradata_size-(ctx->off >> 3);
-            avpriv_copy_bits(bs, &avctx->extradata[ctx->off >> 3], header_size);
-        } else {
-            // + 3 assumes not scalable and dependsOnCoreCoder == 0,
-            // see decode_ga_specific_config in libavcodec/aacdec.c
-            avpriv_copy_bits(bs, avctx->extradata, ctx->off + 3);
-
-            if (!ctx->channel_conf) {
-                GetBitContext gb;
-                init_get_bits(&gb, avctx->extradata, avctx->extradata_size * 8);
-                skip_bits_long(&gb, ctx->off + 3);
-                avpriv_copy_pce_data(bs, &gb);
-            }
-        }
-
-        put_bits(bs, 3, 0); /* frameLengthType */
-        put_bits(bs, 8, 0xff); /* latmBufferFullness */
-
-        put_bits(bs, 1, 0); /* otherDataPresent */
-        put_bits(bs, 1, 0); /* crcCheckPresent */
-    }
-
-    ctx->counter++;
-    ctx->counter %= ctx->mod;
-}
-
-static int latm_write_packet(AVFormatContext *s, AVPacket *pkt)
-{
-    LATMContext *ctx = s->priv_data;
-    AVIOContext *pb = s->pb;
-    PutBitContext bs;
-    int i, len;
-    uint8_t loas_header[] = "\x56\xe0\x00";
-
-    if (s->streams[0]->codec->codec_id == AV_CODEC_ID_AAC_LATM)
-        return ff_raw_write_packet(s, pkt);
-
-    if (pkt->size > 2 && pkt->data[0] == 0xff && (pkt->data[1] >> 4) == 0xf) {
-        av_log(s, AV_LOG_ERROR, "ADTS header detected - ADTS will not be incorrectly muxed into LATM\n");
-        return AVERROR_INVALIDDATA;
-    }
-
-    if (!s->streams[0]->codec->extradata) {
-        if(pkt->size > 2 && pkt->data[0] == 0x56 && (pkt->data[1] >> 4) == 0xe &&
-            (AV_RB16(pkt->data + 1) & 0x1FFF) + 3 == pkt->size)
-            return ff_raw_write_packet(s, pkt);
-        else
-            return AVERROR_INVALIDDATA;
-    }
-
-    if (pkt->size > 0x1fff)
-        goto too_large;
-
-    init_put_bits(&bs, ctx->buffer, pkt->size+1024+MAX_EXTRADATA_SIZE);
-
-    latm_write_frame_header(s, &bs);
-
-    /* PayloadLengthInfo() */
-    for (i = 0; i <= pkt->size-255; i+=255)
-        put_bits(&bs, 8, 255);
-
-    put_bits(&bs, 8, pkt->size-i);
-
-    /* The LATM payload is written unaligned */
-
-    /* PayloadMux() */
-    if (pkt->size && (pkt->data[0] & 0xe1) == 0x81) {
-        // Convert byte-aligned DSE to non-aligned.
-        // Due to the input format encoding we know that
-        // it is naturally byte-aligned in the input stream,
-        // so there are no padding bits to account for.
-        // To avoid having to add padding bits and rearrange
-        // the whole stream we just remove the byte-align flag.
-        // This allows us to remux our FATE AAC samples into latm
-        // files that are still playable with minimal effort.
-        put_bits(&bs, 8, pkt->data[0] & 0xfe);
-        avpriv_copy_bits(&bs, pkt->data + 1, 8*pkt->size - 8);
-    } else
-        avpriv_copy_bits(&bs, pkt->data, 8*pkt->size);
-
-    avpriv_align_put_bits(&bs);
-    flush_put_bits(&bs);
-
-    len = put_bits_count(&bs) >> 3;
-
-    if (len > 0x1fff)
-        goto too_large;
-
-    loas_header[1] |= (len >> 8) & 0x1f;
-    loas_header[2] |= len & 0xff;
-
-    avio_write(pb, loas_header, 3);
-    avio_write(pb, ctx->buffer, len);
-
-    return 0;
-
-too_large:
-    av_log(s, AV_LOG_ERROR, "LATM packet size larger than maximum size 0x1fff\n");
-    return AVERROR_INVALIDDATA;
-}
-
-AVOutputFormat ff_latm_muxer = {
-    .name           = "latm",
-    .long_name      = NULL_IF_CONFIG_SMALL("LOAS/LATM"),
-    .mime_type      = "audio/MP4A-LATM",
-    .extensions     = "latm,loas",
-    .priv_data_size = sizeof(LATMContext),
-    .audio_codec    = AV_CODEC_ID_AAC,
-    .video_codec    = AV_CODEC_ID_NONE,
-    .write_header   = latm_write_header,
-    .write_packet   = latm_write_packet,
-    .priv_class     = &latm_muxer_class,
-};