* Copyright (c) 2010 Anssi Hannula
* Copyright (c) 2010 Carl Eugen Hoyos
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * 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.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * 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 FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
*/
#include "avformat.h"
+#include "avio_internal.h"
#include "spdif.h"
#include "libavcodec/ac3.h"
#include "libavcodec/dca.h"
-#include "libavcodec/dcadata.h"
#include "libavcodec/aacadtsdec.h"
#include "libavutil/opt.h"
/* AVOptions: */
int dtshd_rate;
int dtshd_fallback;
+#define SPDIF_FLAG_BIGENDIAN 0x01
+ int spdif_flags;
/// function, which generates codec dependent header information.
/// Sets data_type and pkt_offset, and length_code, out_bytes, out_buf if necessary
} IEC61937Context;
static const AVOption options[] = {
-{ "dtshd_rate", "mux complete DTS frames in HD mode at the specified IEC958 rate (in Hz, default 0=disabled)", offsetof(IEC61937Context, dtshd_rate), FF_OPT_TYPE_INT, 0, 0, 768000, AV_OPT_FLAG_ENCODING_PARAM },
-{ "dtshd_fallback_time", "min secs to strip HD for after an overflow (-1: till the end, default 60)", offsetof(IEC61937Context, dtshd_fallback), FF_OPT_TYPE_INT, 60, -1, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
+{ "spdif_flags", "IEC 61937 encapsulation flags", offsetof(IEC61937Context, spdif_flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "spdif_flags" },
+{ "be", "output in big-endian format (for use as s16be)", 0, AV_OPT_TYPE_CONST, {.i64 = SPDIF_FLAG_BIGENDIAN}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "spdif_flags" },
+{ "dtshd_rate", "mux complete DTS frames in HD mode at the specified IEC958 rate (in Hz, default 0=disabled)", offsetof(IEC61937Context, dtshd_rate), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 768000, AV_OPT_FLAG_ENCODING_PARAM },
+{ "dtshd_fallback_time", "min secs to strip HD for after an overflow (-1: till the end, default 60)", offsetof(IEC61937Context, dtshd_fallback), AV_OPT_TYPE_INT, {.i64 = 60}, -1, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
{ NULL },
};
-static const AVClass class = { "spdif", av_default_item_name, options, LIBAVUTIL_VERSION_INT };
+static const AVClass class = {
+ .class_name = "spdif",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
static int spdif_header_ac3(AVFormatContext *s, AVPacket *pkt)
{
* the outputted IEC 61937 stream is higher.
* The repetition period is measured in IEC 60958 frames (4 bytes).
*/
-enum {
- DTS4_REP_PER_512 = 0x0,
- DTS4_REP_PER_1024 = 0x1,
- DTS4_REP_PER_2048 = 0x2,
- DTS4_REP_PER_4096 = 0x3,
- DTS4_REP_PER_8192 = 0x4,
- DTS4_REP_PER_16384 = 0x5,
-};
-
static int spdif_dts4_subtype(int period)
{
switch (period) {
- case 512: return DTS4_REP_PER_512;
- case 1024: return DTS4_REP_PER_1024;
- case 2048: return DTS4_REP_PER_2048;
- case 4096: return DTS4_REP_PER_4096;
- case 8192: return DTS4_REP_PER_8192;
- case 16384: return DTS4_REP_PER_16384;
+ case 512: return 0x0;
+ case 1024: return 0x1;
+ case 2048: return 0x2;
+ case 4096: return 0x3;
+ case 8192: return 0x4;
+ case 16384: return 0x5;
}
return -1;
}
if (ctx->dtshd_fallback > 0)
ctx->dtshd_skip = sample_rate * ctx->dtshd_fallback / (blocks << 5);
else
- /* skip permanently (-1) or just once (0) */
+ /* skip permanently (dtshd_fallback == -1) or just once
+ * (dtshd_fallback == 0) */
ctx->dtshd_skip = 1;
}
if (ctx->dtshd_skip && core_size) {
}
ctx->out_bytes = sizeof(dtshd_start_code) + 2 + pkt_size;
- ctx->length_code = ctx->out_bytes;
- ctx->hd_buf = av_fast_realloc(ctx->hd_buf, &ctx->hd_buf_size,
- ctx->out_bytes);
+ /* Align so that (length_code & 0xf) == 0x8. This is reportedly needed
+ * with some receivers, but the exact requirement is unconfirmed. */
+ ctx->length_code = FFALIGN(ctx->out_bytes + 0x8, 0x10) - 0x8;
+
+ av_fast_malloc(&ctx->hd_buf, &ctx->hd_buf_size, ctx->out_bytes);
if (!ctx->hd_buf)
return AVERROR(ENOMEM);
case DCA_MARKER_RAW_BE:
blocks = (AV_RB16(pkt->data + 4) >> 2) & 0x7f;
core_size = ((AV_RB24(pkt->data + 5) >> 4) & 0x3fff) + 1;
- sample_rate = dca_sample_rates[(pkt->data[8] >> 2) & 0x0f];
+ sample_rate = avpriv_dca_sample_rates[(pkt->data[8] >> 2) & 0x0f];
break;
case DCA_MARKER_RAW_LE:
blocks = (AV_RL16(pkt->data + 4) >> 2) & 0x7f;
ctx->data_type = mpeg_data_type [version & 1][layer];
ctx->pkt_offset = spdif_mpeg_pkt_offset[version & 1][layer];
}
- // TODO Data type dependant info (normal/karaoke, dynamic range control)
+ // TODO Data type dependent info (normal/karaoke, dynamic range control)
return 0;
}
int ret;
init_get_bits(&gbc, pkt->data, AAC_ADTS_HEADER_SIZE * 8);
- ret = ff_aac_parse_header(&gbc, &hdr);
+ ret = avpriv_aac_parse_header(&gbc, &hdr);
if (ret < 0) {
av_log(s, AV_LOG_ERROR, "Wrong AAC file format\n");
return AVERROR_INVALIDDATA;
* distribute the TrueHD frames in the MAT frame */
av_log(s, AV_LOG_ERROR, "TrueHD frame too big, %d bytes\n", pkt->size);
av_log_ask_for_sample(s, NULL);
- return AVERROR_INVALIDDATA;
+ return AVERROR_PATCHWELCOME;
}
memcpy(&ctx->hd_buf[ctx->hd_buf_count * TRUEHD_FRAME_OFFSET - BURST_HEADER_SIZE + mat_code_length],
IEC61937Context *ctx = s->priv_data;
switch (s->streams[0]->codec->codec_id) {
- case CODEC_ID_AC3:
+ case AV_CODEC_ID_AC3:
ctx->header_info = spdif_header_ac3;
break;
- case CODEC_ID_EAC3:
+ case AV_CODEC_ID_EAC3:
ctx->header_info = spdif_header_eac3;
break;
- case CODEC_ID_MP1:
- case CODEC_ID_MP2:
- case CODEC_ID_MP3:
+ case AV_CODEC_ID_MP1:
+ case AV_CODEC_ID_MP2:
+ case AV_CODEC_ID_MP3:
ctx->header_info = spdif_header_mpeg;
break;
- case CODEC_ID_DTS:
+ case AV_CODEC_ID_DTS:
ctx->header_info = spdif_header_dts;
break;
- case CODEC_ID_AAC:
+ case AV_CODEC_ID_AAC:
ctx->header_info = spdif_header_aac;
break;
- case CODEC_ID_TRUEHD:
+ case AV_CODEC_ID_TRUEHD:
ctx->header_info = spdif_header_truehd;
ctx->hd_buf = av_malloc(MAT_FRAME_SIZE);
if (!ctx->hd_buf)
return 0;
}
+static av_always_inline void spdif_put_16(IEC61937Context *ctx,
+ AVIOContext *pb, unsigned int val)
+{
+ if (ctx->spdif_flags & SPDIF_FLAG_BIGENDIAN)
+ avio_wb16(pb, val);
+ else
+ avio_wl16(pb, val);
+}
+
static int spdif_write_packet(struct AVFormatContext *s, AVPacket *pkt)
{
IEC61937Context *ctx = s->priv_data;
}
if (ctx->use_preamble) {
- put_le16(s->pb, SYNCWORD1); //Pa
- put_le16(s->pb, SYNCWORD2); //Pb
- put_le16(s->pb, ctx->data_type); //Pc
- put_le16(s->pb, ctx->length_code);//Pd
+ spdif_put_16(ctx, s->pb, SYNCWORD1); //Pa
+ spdif_put_16(ctx, s->pb, SYNCWORD2); //Pb
+ spdif_put_16(ctx, s->pb, ctx->data_type); //Pc
+ spdif_put_16(ctx, s->pb, ctx->length_code);//Pd
}
- if (HAVE_BIGENDIAN ^ ctx->extra_bswap) {
- put_buffer(s->pb, ctx->out_buf, ctx->out_bytes & ~1);
+ if (ctx->extra_bswap ^ (ctx->spdif_flags & SPDIF_FLAG_BIGENDIAN)) {
+ avio_write(s->pb, ctx->out_buf, ctx->out_bytes & ~1);
} else {
av_fast_malloc(&ctx->buffer, &ctx->buffer_size, ctx->out_bytes + FF_INPUT_BUFFER_PADDING_SIZE);
if (!ctx->buffer)
return AVERROR(ENOMEM);
ff_spdif_bswap_buf16((uint16_t *)ctx->buffer, (uint16_t *)ctx->out_buf, ctx->out_bytes >> 1);
- put_buffer(s->pb, ctx->buffer, ctx->out_bytes & ~1);
+ avio_write(s->pb, ctx->buffer, ctx->out_bytes & ~1);
}
+ /* a final lone byte has to be MSB aligned */
if (ctx->out_bytes & 1)
- put_be16(s->pb, ctx->out_buf[ctx->out_bytes - 1]);
+ spdif_put_16(ctx, s->pb, ctx->out_buf[ctx->out_bytes - 1] << 8);
- put_nbyte(s->pb, 0, padding);
+ ffio_fill(s->pb, 0, padding);
av_log(s, AV_LOG_DEBUG, "type=%x len=%i pkt_offset=%i\n",
ctx->data_type, ctx->out_bytes, ctx->pkt_offset);
- put_flush_packet(s->pb);
+ avio_flush(s->pb);
return 0;
}
AVOutputFormat ff_spdif_muxer = {
- "spdif",
- NULL_IF_CONFIG_SMALL("IEC 61937 (used on S/PDIF - IEC958)"),
- NULL,
- "spdif",
- sizeof(IEC61937Context),
- CODEC_ID_AC3,
- CODEC_ID_NONE,
- spdif_write_header,
- spdif_write_packet,
- spdif_write_trailer,
- .priv_class = &class,
+ .name = "spdif",
+ .long_name = NULL_IF_CONFIG_SMALL("IEC 61937 (used on S/PDIF - IEC958)"),
+ .extensions = "spdif",
+ .priv_data_size = sizeof(IEC61937Context),
+ .audio_codec = AV_CODEC_ID_AC3,
+ .video_codec = AV_CODEC_ID_NONE,
+ .write_header = spdif_write_header,
+ .write_packet = spdif_write_packet,
+ .write_trailer = spdif_write_trailer,
+ .flags = AVFMT_NOTIMESTAMPS,
+ .priv_class = &class,
};
projects / ffmpeg / blobdiff