* 50 Mbps (DVCPRO50) support
* Copyright (c) 2006 Daniel Maas <dmaas@maasdigital.com>
*
- * 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 <time.h>
#include <stdarg.h>
+
#include "avformat.h"
+#include "internal.h"
+#include "libavcodec/dv_profile.h"
#include "libavcodec/dvdata.h"
#include "dv.h"
#include "libavutil/fifo.h"
+#include "libavutil/mathematics.h"
+
+#define MAX_AUDIO_FRAME_SIZE 192000 // 1 second of 48khz 32bit audio
struct DVMuxContext {
const DVprofile* sys; /* current DV profile, e.g.: 525/60, 625/50 */
AVStream *ast[2]; /* stereo audio streams */
AVFifoBuffer *audio_data[2]; /* FIFO for storing excessive amounts of PCM */
int frames; /* current frame number */
- time_t start_time; /* recording start time */
- int has_audio; /* frame under contruction has audio */
- int has_video; /* frame under contruction has video */
- uint8_t frame_buf[DV_MAX_FRAME_SIZE]; /* frame under contruction */
+ int64_t start_time; /* recording start time */
+ int has_audio; /* frame under construction has audio */
+ int has_video; /* frame under construction has video */
+ uint8_t frame_buf[DV_MAX_FRAME_SIZE]; /* frame under construction */
};
static const int dv_aaux_packs_dist[12][9] = {
case dv_timecode:
ct = (time_t)av_rescale_rnd(c->frames, c->sys->time_base.num,
c->sys->time_base.den, AV_ROUND_DOWN);
- brktimegm(ct, &tc);
+ ff_brktimegm(ct, &tc);
/*
* LTC drop-frame frame counter drops two frames (0 and 1) every
* minute, unless it is exactly divisible by 10
(1 << 3) | /* recording mode: 1 -- original */
7;
buf[3] = (1 << 7) | /* direction: 1 -- forward */
- (c->sys->pix_fmt == PIX_FMT_YUV420P ? 0x20 : /* speed */
+ (c->sys->pix_fmt == AV_PIX_FMT_YUV420P ? 0x20 : /* speed */
c->sys->ltc_divisor * 4);
buf[4] = (1 << 7) | /* reserved -- always 1 */
0x7f; /* genre category */
case dv_video_recdate: /* VAUX recording date */
ct = c->start_time + av_rescale_rnd(c->frames, c->sys->time_base.num,
c->sys->time_base.den, AV_ROUND_DOWN);
- brktimegm(ct, &tc);
+ ff_brktimegm(ct, &tc);
buf[1] = 0xff; /* ds, tm, tens of time zone, units of time zone */
/* 0xff is very likely to be "unknown" */
buf[2] = (3 << 6) | /* reserved -- always 1 */
case dv_video_rectime: /* VAUX recording time */
ct = c->start_time + av_rescale_rnd(c->frames, c->sys->time_base.num,
c->sys->time_base.den, AV_ROUND_DOWN);
- brktimegm(ct, &tc);
+ ff_brktimegm(ct, &tc);
buf[1] = (3 << 6) | /* reserved -- always 1 */
0x3f; /* tens of frame, units of frame: 0x3f - "unknown" ? */
buf[2] = (1 << 7) | /* reserved -- always 1 */
if (of*2 >= size)
continue;
- frame_ptr[d] = av_fifo_peek(c->audio_data[channel], of*2+1); // FIXME: maybe we have to admit
- frame_ptr[d+1] = av_fifo_peek(c->audio_data[channel], of*2); // that DV is a big-endian PCM
+ frame_ptr[d] = *av_fifo_peek2(c->audio_data[channel], of*2+1); // FIXME: maybe we have to admit
+ frame_ptr[d+1] = *av_fifo_peek2(c->audio_data[channel], of*2); // that DV is a big-endian PCM
}
frame_ptr += 16 * 80; /* 15 Video DIFs + 1 Audio DIF */
}
* The following 3 functions constitute our interface to the world
*/
-int dv_assemble_frame(DVMuxContext *c, AVStream* st,
- uint8_t* data, int data_size, uint8_t** frame)
+static int dv_assemble_frame(DVMuxContext *c, AVStream* st,
+ uint8_t* data, int data_size, uint8_t** frame)
{
int i, reqasize;
for (i = 0; i < c->n_ast && st != c->ast[i]; i++);
/* FIXME: we have to have more sensible approach than this one */
- if (av_fifo_size(c->audio_data[i]) + data_size >= 100*AVCODEC_MAX_AUDIO_FRAME_SIZE)
+ if (av_fifo_size(c->audio_data[i]) + data_size >= 100*MAX_AUDIO_FRAME_SIZE)
av_log(st->codec, AV_LOG_ERROR, "Can't process DV frame #%d. Insufficient video data or severe sync problem.\n", c->frames);
av_fifo_generic_write(c->audio_data[i], data, data_size, NULL);
return 0;
}
-DVMuxContext* dv_init_mux(AVFormatContext* s)
+static DVMuxContext* dv_init_mux(AVFormatContext* s)
{
DVMuxContext *c = s->priv_data;
AVStream *vst = NULL;
+ AVDictionaryEntry *t;
int i;
/* we support at most 1 video and 2 audio streams */
}
/* Some checks -- DV format is very picky about its incoming streams */
- if (!vst || vst->codec->codec_id != CODEC_ID_DVVIDEO)
+ if (!vst || vst->codec->codec_id != AV_CODEC_ID_DVVIDEO)
goto bail_out;
for (i=0; i<c->n_ast; i++) {
- if (c->ast[i] && (c->ast[i]->codec->codec_id != CODEC_ID_PCM_S16LE ||
+ if (c->ast[i] && (c->ast[i]->codec->codec_id != AV_CODEC_ID_PCM_S16LE ||
c->ast[i]->codec->sample_rate != 48000 ||
c->ast[i]->codec->channels != 2))
goto bail_out;
}
- c->sys = ff_dv_codec_profile(vst->codec);
+ c->sys = avpriv_dv_codec_profile(vst->codec);
if (!c->sys)
goto bail_out;
c->frames = 0;
c->has_audio = 0;
c->has_video = 0;
- c->start_time = (time_t)s->timestamp;
+ if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
+ c->start_time = ff_iso8601_to_unix_time(t->value);
for (i=0; i < c->n_ast; i++) {
- if (c->ast[i] && !(c->audio_data[i]=av_fifo_alloc(100*AVCODEC_MAX_AUDIO_FRAME_SIZE))) {
+ if (c->ast[i] && !(c->audio_data[i]=av_fifo_alloc(100*MAX_AUDIO_FRAME_SIZE))) {
while (i > 0) {
i--;
av_fifo_free(c->audio_data[i]);
return NULL;
}
-void dv_delete_mux(DVMuxContext *c)
+static void dv_delete_mux(DVMuxContext *c)
{
int i;
for (i=0; i < c->n_ast; i++)
av_fifo_free(c->audio_data[i]);
}
-#if CONFIG_DV_MUXER
static int dv_write_header(AVFormatContext *s)
{
if (!dv_init_mux(s)) {
fsize = dv_assemble_frame(s->priv_data, s->streams[pkt->stream_index],
pkt->data, pkt->size, &frame);
if (fsize > 0) {
- put_buffer(s->pb, frame, fsize);
- put_flush_packet(s->pb);
+ avio_write(s->pb, frame, fsize);
+ avio_flush(s->pb);
}
return 0;
}
return 0;
}
-AVOutputFormat dv_muxer = {
- "dv",
- NULL_IF_CONFIG_SMALL("DV video format"),
- NULL,
- "dv",
- sizeof(DVMuxContext),
- CODEC_ID_PCM_S16LE,
- CODEC_ID_DVVIDEO,
- dv_write_header,
- dv_write_packet,
- dv_write_trailer,
+AVOutputFormat ff_dv_muxer = {
+ .name = "dv",
+ .long_name = NULL_IF_CONFIG_SMALL("DV (Digital Video)"),
+ .extensions = "dv",
+ .priv_data_size = sizeof(DVMuxContext),
+ .audio_codec = AV_CODEC_ID_PCM_S16LE,
+ .video_codec = AV_CODEC_ID_DVVIDEO,
+ .write_header = dv_write_header,
+ .write_packet = dv_write_packet,
+ .write_trailer = dv_write_trailer,
};
-#endif /* CONFIG_DV_MUXER */