adding ffmpeg specific version

1 files changed, 332 insertions, 0 deletions

diff --git a/ffmpeg1/libavformat/aiffenc.c b/ffmpeg1/libavformat/aiffenc.c
new file mode 100644
index 0000000..7c0b4fb
--- /dev/null
+++ b/ffmpeg1/libavformat/aiffenc.c
@@ -0,0 +1,332 @@
+/*
+ * AIFF/AIFF-C muxer
+ * Copyright (c) 2006  Patrick Guimond
+ *
+ * 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 "libavutil/intfloat.h"
+#include "libavutil/opt.h"
+#include "avformat.h"
+#include "internal.h"
+#include "aiff.h"
+#include "avio_internal.h"
+#include "isom.h"
+#include "id3v2.h"
+
+typedef struct {
+    const AVClass *class;
+    int64_t form;
+    int64_t frames;
+    int64_t ssnd;
+    int audio_stream_idx;
+    AVPacketList *pict_list;
+    int write_id3v2;
+    int id3v2_version;
+} AIFFOutputContext;
+
+static int put_id3v2_tags(AVFormatContext *s, AIFFOutputContext *aiff)
+{
+    int ret;
+    uint64_t pos, end, size;
+    ID3v2EncContext id3v2 = { 0 };
+    AVIOContext *pb = s->pb;
+    AVPacketList *pict_list = aiff->pict_list;
+
+    if (!pb->seekable)
+        return 0;
+
+    if (!s->metadata && !aiff->pict_list)
+        return 0;
+
+    avio_wl32(pb, MKTAG('I', 'D', '3', ' '));
+    avio_wb32(pb, 0);
+    pos = avio_tell(pb);
+
+    ff_id3v2_start(&id3v2, pb, aiff->id3v2_version, ID3v2_DEFAULT_MAGIC);
+    ff_id3v2_write_metadata(s, &id3v2);
+    while (pict_list) {
+        if ((ret = ff_id3v2_write_apic(s, &id3v2, &pict_list->pkt)) < 0)
+            return ret;
+        pict_list = pict_list->next;
+    }
+    ff_id3v2_finish(&id3v2, pb);
+
+    end = avio_tell(pb);
+    size = end - pos;
+
+    /* Update chunk size */
+    avio_seek(pb, pos - 4, SEEK_SET);
+    avio_wb32(pb, size);
+    avio_seek(pb, end, SEEK_SET);
+
+    if (size & 1)
+        avio_w8(pb, 0);
+
+    return 0;
+}
+
+static void put_meta(AVFormatContext *s, const char *key, uint32_t id)
+{
+    AVDictionaryEntry *tag;
+    AVIOContext *pb = s->pb;
+
+    if (tag = av_dict_get(s->metadata, key, NULL, 0)) {
+        int size = strlen(tag->value);
+
+        avio_wl32(pb, id);
+        avio_wb32(pb, FFALIGN(size, 2));
+        avio_write(pb, tag->value, size);
+        if (size & 1)
+            avio_w8(pb, 0);
+    }
+}
+
+static int aiff_write_header(AVFormatContext *s)
+{
+    AIFFOutputContext *aiff = s->priv_data;
+    AVIOContext *pb = s->pb;
+    AVCodecContext *enc;
+    uint64_t sample_rate;
+    int i, aifc = 0;
+
+    aiff->audio_stream_idx = -1;
+    for (i = 0; i < s->nb_streams; i++) {
+        AVStream *st = s->streams[i];
+        if (aiff->audio_stream_idx < 0 && st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
+            aiff->audio_stream_idx = i;
+        } else if (st->codec->codec_type != AVMEDIA_TYPE_VIDEO) {
+            av_log(s, AV_LOG_ERROR, "Only audio streams and pictures are allowed in AIFF.\n");
+            return AVERROR(EINVAL);
+        }
+    }
+    if (aiff->audio_stream_idx < 0) {
+        av_log(s, AV_LOG_ERROR, "No audio stream present.\n");
+        return AVERROR(EINVAL);
+    }
+
+    enc = s->streams[aiff->audio_stream_idx]->codec;
+
+    /* First verify if format is ok */
+    if (!enc->codec_tag)
+        return -1;
+    if (enc->codec_tag != MKTAG('N','O','N','E'))
+        aifc = 1;
+
+    /* FORM AIFF header */
+    ffio_wfourcc(pb, "FORM");
+    aiff->form = avio_tell(pb);
+    avio_wb32(pb, 0);                    /* file length */
+    ffio_wfourcc(pb, aifc ? "AIFC" : "AIFF");
+
+    if (aifc) { // compressed audio
+        if (!enc->block_align) {
+            av_log(s, AV_LOG_ERROR, "block align not set\n");
+            return -1;
+        }
+        /* Version chunk */
+        ffio_wfourcc(pb, "FVER");
+        avio_wb32(pb, 4);
+        avio_wb32(pb, 0xA2805140);
+    }
+
+    if (enc->channels > 2 && enc->channel_layout) {
+        ffio_wfourcc(pb, "CHAN");
+        avio_wb32(pb, 12);
+        ff_mov_write_chan(pb, enc->channel_layout);
+    }
+
+    put_meta(s, "title",     MKTAG('N', 'A', 'M', 'E'));
+    put_meta(s, "author",    MKTAG('A', 'U', 'T', 'H'));
+    put_meta(s, "copyright", MKTAG('(', 'c', ')', ' '));
+    put_meta(s, "comment",   MKTAG('A', 'N', 'N', 'O'));
+
+    /* Common chunk */
+    ffio_wfourcc(pb, "COMM");
+    avio_wb32(pb, aifc ? 24 : 18); /* size */
+    avio_wb16(pb, enc->channels);  /* Number of channels */
+
+    aiff->frames = avio_tell(pb);
+    avio_wb32(pb, 0);              /* Number of frames */
+
+    if (!enc->bits_per_coded_sample)
+        enc->bits_per_coded_sample = av_get_bits_per_sample(enc->codec_id);
+    if (!enc->bits_per_coded_sample) {
+        av_log(s, AV_LOG_ERROR, "could not compute bits per sample\n");
+        return -1;
+    }
+    if (!enc->block_align)
+        enc->block_align = (enc->bits_per_coded_sample * enc->channels) >> 3;
+
+    avio_wb16(pb, enc->bits_per_coded_sample); /* Sample size */
+
+    sample_rate = av_double2int(enc->sample_rate);
+    avio_wb16(pb, (sample_rate >> 52) + (16383 - 1023));
+    avio_wb64(pb, UINT64_C(1) << 63 | sample_rate << 11);
+
+    if (aifc) {
+        avio_wl32(pb, enc->codec_tag);
+        avio_wb16(pb, 0);
+    }
+
+    if (enc->codec_tag == MKTAG('Q','D','M','2') && enc->extradata_size) {
+        ffio_wfourcc(pb, "wave");
+        avio_wb32(pb, enc->extradata_size);
+        avio_write(pb, enc->extradata, enc->extradata_size);
+    }
+
+    /* Sound data chunk */
+    ffio_wfourcc(pb, "SSND");
+    aiff->ssnd = avio_tell(pb);         /* Sound chunk size */
+    avio_wb32(pb, 0);                    /* Sound samples data size */
+    avio_wb32(pb, 0);                    /* Data offset */
+    avio_wb32(pb, 0);                    /* Block-size (block align) */
+
+    avpriv_set_pts_info(s->streams[aiff->audio_stream_idx], 64, 1,
+                        s->streams[aiff->audio_stream_idx]->codec->sample_rate);
+
+    /* Data is starting here */
+    avio_flush(pb);
+
+    return 0;
+}
+
+static int aiff_write_packet(AVFormatContext *s, AVPacket *pkt)
+{
+    AIFFOutputContext *aiff = s->priv_data;
+    AVIOContext *pb = s->pb;
+    if (pkt->stream_index == aiff->audio_stream_idx)
+        avio_write(pb, pkt->data, pkt->size);
+    else {
+        int ret;
+        AVPacketList *pict_list, *last;
+
+        if (s->streams[pkt->stream_index]->codec->codec_type != AVMEDIA_TYPE_VIDEO)
+            return 0;
+
+        /* warn only once for each stream */
+        if (s->streams[pkt->stream_index]->nb_frames == 1) {
+            av_log(s, AV_LOG_WARNING, "Got more than one picture in stream %d,"
+                   " ignoring.\n", pkt->stream_index);
+        }
+        if (s->streams[pkt->stream_index]->nb_frames >= 1)
+            return 0;
+
+        pict_list = av_mallocz(sizeof(AVPacketList));
+        if (!pict_list)
+            return AVERROR(ENOMEM);
+
+        if ((ret = av_copy_packet(&pict_list->pkt, pkt)) < 0) {
+            av_freep(&pict_list);
+            return ret;
+        }
+
+        if (!aiff->pict_list)
+            aiff->pict_list = pict_list;
+        else {
+            last = aiff->pict_list;
+            while (last->next)
+                last = last->next;
+            last->next = pict_list;
+        }
+    }
+
+    return 0;
+}
+
+static int aiff_write_trailer(AVFormatContext *s)
+{
+    int ret;
+    AVIOContext *pb = s->pb;
+    AIFFOutputContext *aiff = s->priv_data;
+    AVPacketList *pict_list = aiff->pict_list;
+    AVCodecContext *enc = s->streams[aiff->audio_stream_idx]->codec;
+
+    /* Chunks sizes must be even */
+    int64_t file_size, end_size;
+    end_size = file_size = avio_tell(pb);
+    if (file_size & 1) {
+        avio_w8(pb, 0);
+        end_size++;
+    }
+
+    if (s->pb->seekable) {
+        /* Number of sample frames */
+        avio_seek(pb, aiff->frames, SEEK_SET);
+        avio_wb32(pb, (file_size-aiff->ssnd-12)/enc->block_align);
+
+        /* Sound Data chunk size */
+        avio_seek(pb, aiff->ssnd, SEEK_SET);
+        avio_wb32(pb, file_size - aiff->ssnd - 4);
+
+        /* return to the end */
+        avio_seek(pb, end_size, SEEK_SET);
+
+        /* Write ID3 tags */
+        if (aiff->write_id3v2)
+            if ((ret = put_id3v2_tags(s, aiff)) < 0)
+                return ret;
+
+        /* File length */
+        file_size = avio_tell(pb);
+        avio_seek(pb, aiff->form, SEEK_SET);
+        avio_wb32(pb, file_size - aiff->form - 4);
+
+        avio_flush(pb);
+    }
+
+    while (pict_list) {
+        AVPacketList *next = pict_list->next;
+        av_free_packet(&pict_list->pkt);
+        av_freep(&pict_list);
+        pict_list = next;
+    }
+
+    return 0;
+}
+
+#define OFFSET(x) offsetof(AIFFOutputContext, x)
+#define ENC AV_OPT_FLAG_ENCODING_PARAM
+static const AVOption options[] = {
+    { "write_id3v2", "Enable ID3 tags writing.",
+      OFFSET(write_id3v2), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, ENC },
+    { "id3v2_version", "Select ID3v2 version to write. Currently 3 and 4 are supported.",
+      OFFSET(id3v2_version), AV_OPT_TYPE_INT, {.i64 = 4}, 3, 4, ENC },
+    { NULL },
+};
+
+static const AVClass aiff_muxer_class = {
+    .class_name     = "AIFF muxer",
+    .item_name      = av_default_item_name,
+    .option         = options,
+    .version        = LIBAVUTIL_VERSION_INT,
+};
+
+AVOutputFormat ff_aiff_muxer = {
+    .name              = "aiff",
+    .long_name         = NULL_IF_CONFIG_SMALL("Audio IFF"),
+    .mime_type         = "audio/aiff",
+    .extensions        = "aif,aiff,afc,aifc",
+    .priv_data_size    = sizeof(AIFFOutputContext),
+    .audio_codec       = AV_CODEC_ID_PCM_S16BE,
+    .video_codec       = AV_CODEC_ID_PNG,
+    .write_header      = aiff_write_header,
+    .write_packet      = aiff_write_packet,
+    .write_trailer     = aiff_write_trailer,
+    .codec_tag         = (const AVCodecTag* const []){ ff_codec_aiff_tags, 0 },
+    .priv_class        = &aiff_muxer_class,
+};