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-rw-r--r--libavformat/aiffenc.c198
1 files changed, 183 insertions, 15 deletions
diff --git a/libavformat/aiffenc.c b/libavformat/aiffenc.c
index d4bffb3..90fc433 100644
--- a/libavformat/aiffenc.c
+++ b/libavformat/aiffenc.c
@@ -2,44 +2,126 @@
* AIFF/AIFF-C muxer
* Copyright (c) 2006 Patrick Guimond
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdint.h>
#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, s->metadata_header_padding);
+
+ 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 = s->streams[0]->codec;
+ AVCodecContext *enc;
uint64_t sample_rate;
- int aifc = 0;
+ 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)
@@ -54,7 +136,6 @@ static int aiff_write_header(AVFormatContext *s)
ffio_wfourcc(pb, aifc ? "AIFC" : "AIFF");
if (aifc) { // compressed audio
- enc->bits_per_coded_sample = 16;
if (!enc->block_align) {
av_log(s, AV_LOG_ERROR, "block align not set\n");
return -1;
@@ -65,6 +146,17 @@ static int aiff_write_header(AVFormatContext *s)
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 */
@@ -93,6 +185,12 @@ static int aiff_write_header(AVFormatContext *s)
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 */
@@ -100,7 +198,8 @@ static int aiff_write_header(AVFormatContext *s)
avio_wb32(pb, 0); /* Data offset */
avio_wb32(pb, 0); /* Block-size (block align) */
- avpriv_set_pts_info(s->streams[0], 64, 1, s->streams[0]->codec->sample_rate);
+ 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);
@@ -110,16 +209,54 @@ static int aiff_write_header(AVFormatContext *s)
static int aiff_write_packet(AVFormatContext *s, AVPacket *pkt)
{
+ AIFFOutputContext *aiff = s->priv_data;
AVIOContext *pb = s->pb;
- avio_write(pb, pkt->data, pkt->size);
+ 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;
- AVCodecContext *enc = s->streams[0]->codec;
+ 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;
@@ -130,10 +267,6 @@ static int aiff_write_trailer(AVFormatContext *s)
}
if (s->pb->seekable) {
- /* File length */
- avio_seek(pb, aiff->form, SEEK_SET);
- avio_wb32(pb, file_size - aiff->form - 4);
-
/* Number of sample frames */
avio_seek(pb, aiff->frames, SEEK_SET);
avio_wb32(pb, (file_size-aiff->ssnd-12)/enc->block_align);
@@ -145,12 +278,46 @@ static int aiff_write_trailer(AVFormatContext *s)
/* 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"),
@@ -158,9 +325,10 @@ AVOutputFormat ff_aiff_muxer = {
.extensions = "aif,aiff,afc,aifc",
.priv_data_size = sizeof(AIFFOutputContext),
.audio_codec = AV_CODEC_ID_PCM_S16BE,
- .video_codec = AV_CODEC_ID_NONE,
+ .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,
};
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