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authorwm4 <wm4@nowhere>2012-11-05 17:02:04 +0100
committerwm4 <wm4@nowhere>2012-11-12 20:06:14 +0100
commitd4bdd0473d6f43132257c9fb3848d829755167a3 (patch)
tree8021c2f7da1841393c8c832105e20cd527826d6c /demux/demux_lavf.c
parentbd48deba77bd5582c5829d6fe73a7d2571088aba (diff)
downloadmpv-d4bdd0473d6f43132257c9fb3848d829755167a3.tar.bz2
mpv-d4bdd0473d6f43132257c9fb3848d829755167a3.tar.xz
Rename directories, move files (step 1 of 2) (does not compile)
Tis drops the silly lib prefixes, and attempts to organize the tree in a more logical way. Make the top-level directory less cluttered as well. Renames the following directories: libaf -> audio/filter libao2 -> audio/out libvo -> video/out libmpdemux -> demux Split libmpcodecs: vf* -> video/filter vd*, dec_video.* -> video/decode mp_image*, img_format*, ... -> video/ ad*, dec_audio.* -> audio/decode libaf/format.* is moved to audio/ - this is similar to how mp_image.* is located in video/. Move most top-level .c/.h files to core. (talloc.c/.h is left on top- level, because it's external.) Park some of the more annoying files in compat/. Some of these are relicts from the time mplayer used ffmpeg internals. sub/ is not split, because it's too much of a mess (subtitle code is mixed with OSD display and rendering). Maybe the organization of core is not ideal: it mixes playback core (like mplayer.c) and utility helpers (like bstr.c/h). Should the need arise, the playback core will be moved somewhere else, while core contains all helper and common code.
Diffstat (limited to 'demux/demux_lavf.c')
-rw-r--r--demux/demux_lavf.c1092
1 files changed, 1092 insertions, 0 deletions
diff --git a/demux/demux_lavf.c b/demux/demux_lavf.c
new file mode 100644
index 0000000000..35f3f6a83e
--- /dev/null
+++ b/demux/demux_lavf.c
@@ -0,0 +1,1092 @@
+/*
+ * Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of MPlayer.
+ *
+ * MPlayer is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * MPlayer 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with MPlayer; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+// #include <stdio.h>
+#include <stdlib.h>
+// #include <unistd.h>
+#include <limits.h>
+#include <stdbool.h>
+#include <string.h>
+#include <assert.h>
+
+#include <libavformat/avformat.h>
+#include <libavformat/avio.h>
+#include <libavutil/avutil.h>
+#include <libavutil/avstring.h>
+#include <libavutil/mathematics.h>
+#include <libavutil/opt.h>
+#include "libav_compat.h"
+
+#include "config.h"
+#include "options.h"
+#include "mp_msg.h"
+#include "av_opts.h"
+#include "bstr.h"
+
+#include "stream/stream.h"
+#include "aviprint.h"
+#include "demuxer.h"
+#include "stheader.h"
+#include "m_option.h"
+
+#include "mp_taglists.h"
+
+#define INITIAL_PROBE_SIZE STREAM_BUFFER_SIZE
+#define SMALL_MAX_PROBE_SIZE (32 * 1024)
+#define PROBE_BUF_SIZE (2 * 1024 * 1024)
+
+const m_option_t lavfdopts_conf[] = {
+ OPT_INTRANGE("probesize", lavfdopts.probesize, 0, 32, INT_MAX),
+ OPT_STRING("format", lavfdopts.format, 0),
+ OPT_INTRANGE("analyzeduration", lavfdopts.analyzeduration, 0, 0, INT_MAX),
+ OPT_STRING("cryptokey", lavfdopts.cryptokey, 0),
+ OPT_STRING("o", lavfdopts.avopt, 0),
+ {NULL, NULL, 0, 0, 0, 0, NULL}
+};
+
+#define BIO_BUFFER_SIZE 32768
+
+typedef struct lavf_priv {
+ AVInputFormat *avif;
+ AVFormatContext *avfc;
+ AVIOContext *pb;
+ uint8_t buffer[BIO_BUFFER_SIZE];
+ int audio_streams;
+ int video_streams;
+ int sub_streams;
+ int autoselect_sub;
+ int64_t last_pts;
+ int astreams[MAX_A_STREAMS];
+ int vstreams[MAX_V_STREAMS];
+ int sstreams[MAX_S_STREAMS];
+ int cur_program;
+ int nb_streams_last;
+ bool internet_radio_hack;
+ bool use_dts;
+ bool seek_by_bytes;
+ int bitrate;
+} lavf_priv_t;
+
+static int mp_read(void *opaque, uint8_t *buf, int size)
+{
+ struct demuxer *demuxer = opaque;
+ struct stream *stream = demuxer->stream;
+ int ret;
+
+ ret = stream_read(stream, buf, size);
+
+ mp_msg(MSGT_HEADER, MSGL_DBG2,
+ "%d=mp_read(%p, %p, %d), pos: %"PRId64", eof:%d\n",
+ ret, stream, buf, size, stream_tell(stream), stream->eof);
+ return ret;
+}
+
+static int64_t mp_seek(void *opaque, int64_t pos, int whence)
+{
+ struct demuxer *demuxer = opaque;
+ struct stream *stream = demuxer->stream;
+ int64_t current_pos;
+ mp_msg(MSGT_HEADER, MSGL_DBG2, "mp_seek(%p, %"PRId64", %d)\n",
+ stream, pos, whence);
+ if (whence == SEEK_CUR)
+ pos += stream_tell(stream);
+ else if (whence == SEEK_END && stream->end_pos > 0)
+ pos += stream->end_pos;
+ else if (whence == SEEK_SET)
+ pos += stream->start_pos;
+ else if (whence == AVSEEK_SIZE && stream->end_pos > 0) {
+ off_t size;
+ if (stream_control(stream, STREAM_CTRL_GET_SIZE, &size) == STREAM_OK)
+ return size;
+ return stream->end_pos - stream->start_pos;
+ } else
+ return -1;
+
+ if (pos < 0)
+ return -1;
+ current_pos = stream_tell(stream);
+ if (stream_seek(stream, pos) == 0) {
+ stream_reset(stream);
+ stream_seek(stream, current_pos);
+ return -1;
+ }
+
+ return pos - stream->start_pos;
+}
+
+static int64_t mp_read_seek(void *opaque, int stream_idx, int64_t ts, int flags)
+{
+ struct demuxer *demuxer = opaque;
+ struct stream *stream = demuxer->stream;
+ struct lavf_priv *priv = demuxer->priv;
+
+ AVStream *st = priv->avfc->streams[stream_idx];
+ double pts = (double)ts * st->time_base.num / st->time_base.den;
+ int ret = stream_control(stream, STREAM_CTRL_SEEK_TO_TIME, &pts);
+ if (ret < 0)
+ ret = AVERROR(ENOSYS);
+ return ret;
+}
+
+static void list_formats(void)
+{
+ mp_msg(MSGT_DEMUX, MSGL_INFO, "Available lavf input formats:\n");
+ AVInputFormat *fmt = NULL;
+ while ((fmt = av_iformat_next(fmt)))
+ mp_msg(MSGT_DEMUX, MSGL_INFO, "%15s : %s\n", fmt->name, fmt->long_name);
+}
+
+static int lavf_check_file(demuxer_t *demuxer)
+{
+ struct MPOpts *opts = demuxer->opts;
+ struct lavfdopts *lavfdopts = &opts->lavfdopts;
+ AVProbeData avpd;
+ lavf_priv_t *priv;
+ int probe_data_size = 0;
+ int read_size = INITIAL_PROBE_SIZE;
+ int score;
+
+ if (!demuxer->priv)
+ demuxer->priv = calloc(sizeof(lavf_priv_t), 1);
+ priv = demuxer->priv;
+ priv->autoselect_sub = -1;
+
+ char *format = lavfdopts->format;
+ if (!format)
+ format = demuxer->stream->lavf_type;
+ if (format) {
+ if (strcmp(format, "help") == 0) {
+ list_formats();
+ return 0;
+ }
+ priv->avif = av_find_input_format(format);
+ if (!priv->avif) {
+ mp_msg(MSGT_DEMUX, MSGL_FATAL, "Unknown lavf format %s\n", format);
+ return 0;
+ }
+ mp_msg(MSGT_DEMUX, MSGL_INFO, "Forced lavf %s demuxer\n",
+ priv->avif->long_name);
+ return DEMUXER_TYPE_LAVF;
+ }
+
+ avpd.buf = av_mallocz(FFMAX(BIO_BUFFER_SIZE, PROBE_BUF_SIZE) +
+ FF_INPUT_BUFFER_PADDING_SIZE);
+ do {
+ read_size = stream_read(demuxer->stream, avpd.buf + probe_data_size,
+ read_size);
+ if (read_size < 0) {
+ av_free(avpd.buf);
+ return 0;
+ }
+ probe_data_size += read_size;
+ avpd.filename = demuxer->stream->url;
+ if (!avpd.filename) {
+ mp_msg(MSGT_DEMUX, MSGL_WARN, "Stream url is not set!\n");
+ avpd.filename = "";
+ }
+ if (!strncmp(avpd.filename, "ffmpeg://", 9) ||
+ !strncmp(avpd.filename, "lavf://", 7))
+ avpd.filename += 9;
+ avpd.buf_size = probe_data_size;
+
+ score = 0;
+ priv->avif = av_probe_input_format2(&avpd, probe_data_size > 0, &score);
+ read_size = FFMIN(2 * read_size, PROBE_BUF_SIZE - probe_data_size);
+ } while ((demuxer->desc->type != DEMUXER_TYPE_LAVF_PREFERRED ||
+ probe_data_size < SMALL_MAX_PROBE_SIZE) &&
+ score <= AVPROBE_SCORE_MAX / 4 &&
+ read_size > 0 && probe_data_size < PROBE_BUF_SIZE);
+ av_free(avpd.buf);
+
+ if (!priv->avif || score <= AVPROBE_SCORE_MAX / 4) {
+ mp_msg(MSGT_HEADER, MSGL_V,
+ "LAVF_check: no clue about this gibberish!\n");
+ return 0;
+ } else
+ mp_msg(MSGT_HEADER, MSGL_V, "LAVF_check: %s\n", priv->avif->long_name);
+
+ demuxer->filetype = priv->avif->long_name;
+ if (!demuxer->filetype)
+ demuxer->filetype = priv->avif->name;
+
+ return DEMUXER_TYPE_LAVF;
+}
+
+static bool matches_avinputformat_name(struct lavf_priv *priv,
+ const char *name)
+{
+ const char *avifname = priv->avif->name;
+ while (1) {
+ const char *next = strchr(avifname, ',');
+ if (!next)
+ return !strcmp(avifname, name);
+ int len = next - avifname;
+ if (len == strlen(name) && !memcmp(avifname, name, len))
+ return true;
+ avifname = next + 1;
+ }
+}
+
+/* formats for which an internal demuxer is preferred */
+static const char * const preferred_internal[] = {
+ /* lavf Matroska demuxer doesn't support ordered chapters and fails
+ * for more files */
+ "matroska",
+ NULL
+};
+
+static int lavf_check_preferred_file(demuxer_t *demuxer)
+{
+ if (lavf_check_file(demuxer)) {
+ const char * const *p;
+ lavf_priv_t *priv = demuxer->priv;
+ for (p = preferred_internal; *p; p++)
+ if (matches_avinputformat_name(priv, *p))
+ return 0;
+ return DEMUXER_TYPE_LAVF_PREFERRED;
+ }
+ return 0;
+}
+
+static uint8_t char2int(char c)
+{
+ if (c >= '0' && c <= '9') return c - '0';
+ if (c >= 'a' && c <= 'f') return c - 'a' + 10;
+ if (c >= 'A' && c <= 'F') return c - 'A' + 10;
+ return 0;
+}
+
+static void parse_cryptokey(AVFormatContext *avfc, const char *str)
+{
+ int len = strlen(str) / 2;
+ uint8_t *key = av_mallocz(len);
+ int i;
+ avfc->keylen = len;
+ avfc->key = key;
+ for (i = 0; i < len; i++, str += 2)
+ *key++ = (char2int(str[0]) << 4) | char2int(str[1]);
+}
+
+static void handle_stream(demuxer_t *demuxer, AVFormatContext *avfc, int i)
+{
+ lavf_priv_t *priv = demuxer->priv;
+ AVStream *st = avfc->streams[i];
+ AVCodecContext *codec = st->codec;
+ char *stream_type = NULL;
+ int stream_id;
+ AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL, 0);
+ AVDictionaryEntry *title = av_dict_get(st->metadata, "title", NULL, 0);
+ // Work around collisions resulting from the hacks changing codec_tag.
+ int lavf_codec_tag = codec->codec_tag;
+ // Don't use native MPEG codec tag values with our generic tag tables.
+ // May contain for example value 3 for MP3, which we'd map to PCM audio.
+ if (matches_avinputformat_name(priv, "mpeg") ||
+ matches_avinputformat_name(priv, "mpegts"))
+ codec->codec_tag = 0;
+ int override_tag = mp_taglist_override(codec->codec_id);
+ // For some formats (like PCM) always trust CODEC_ID_* more than codec_tag
+ if (override_tag)
+ codec->codec_tag = override_tag;
+
+ AVCodec *avc = avcodec_find_decoder(codec->codec_id);
+ const char *codec_name = avc ? avc->name : "unknown";
+
+ bool set_demuxer_id = matches_avinputformat_name(priv, "mpeg");
+
+ switch (codec->codec_type) {
+ case AVMEDIA_TYPE_AUDIO: {
+ WAVEFORMATEX *wf;
+ sh_audio_t *sh_audio;
+ sh_audio = new_sh_audio_aid(demuxer, i, priv->audio_streams);
+ if (!sh_audio)
+ break;
+ sh_audio->demuxer_codecname = codec_name;
+ if (set_demuxer_id)
+ sh_audio->gsh->demuxer_id = st->id;
+ stream_type = "audio";
+ priv->astreams[priv->audio_streams] = i;
+ sh_audio->libav_codec_id = codec->codec_id;
+ sh_audio->gsh->lavf_codec_tag = lavf_codec_tag;
+ wf = calloc(sizeof(*wf) + codec->extradata_size, 1);
+ // mp4a tag is used for all mp4 files no matter what they actually contain
+ if (codec->codec_tag == MKTAG('m', 'p', '4', 'a'))
+ codec->codec_tag = 0;
+ if (!codec->codec_tag)
+ codec->codec_tag = mp_taglist_audio(codec->codec_id);
+ if (!codec->codec_tag)
+ codec->codec_tag = -1;
+ wf->wFormatTag = codec->codec_tag;
+ wf->nChannels = codec->channels;
+ wf->nSamplesPerSec = codec->sample_rate;
+ wf->nAvgBytesPerSec = codec->bit_rate / 8;
+ wf->nBlockAlign = codec->block_align;
+ wf->wBitsPerSample = codec->bits_per_coded_sample;
+ wf->cbSize = codec->extradata_size;
+ if (codec->extradata_size)
+ memcpy(wf + 1, codec->extradata, codec->extradata_size);
+ sh_audio->wf = wf;
+ sh_audio->audio.dwSampleSize = codec->block_align;
+ if (codec->frame_size && codec->sample_rate) {
+ sh_audio->audio.dwScale = codec->frame_size;
+ sh_audio->audio.dwRate = codec->sample_rate;
+ } else {
+ sh_audio->audio.dwScale = codec->block_align ? codec->block_align * 8 : 8;
+ sh_audio->audio.dwRate = codec->bit_rate;
+ }
+ int g = av_gcd(sh_audio->audio.dwScale, sh_audio->audio.dwRate);
+ sh_audio->audio.dwScale /= g;
+ sh_audio->audio.dwRate /= g;
+// printf("sca:%d rat:%d fs:%d sr:%d ba:%d\n", sh_audio->audio.dwScale, sh_audio->audio.dwRate, codec->frame_size, codec->sample_rate, codec->block_align);
+ sh_audio->ds = demuxer->audio;
+ sh_audio->format = codec->codec_tag;
+ sh_audio->channels = codec->channels;
+ sh_audio->samplerate = codec->sample_rate;
+ sh_audio->i_bps = codec->bit_rate / 8;
+ switch (codec->codec_id) {
+ case CODEC_ID_PCM_S8:
+ case CODEC_ID_PCM_U8:
+ sh_audio->samplesize = 1;
+ break;
+ case CODEC_ID_PCM_S16LE:
+ case CODEC_ID_PCM_S16BE:
+ case CODEC_ID_PCM_U16LE:
+ case CODEC_ID_PCM_U16BE:
+ sh_audio->samplesize = 2;
+ break;
+ case CODEC_ID_PCM_ALAW:
+ sh_audio->format = 0x6;
+ break;
+ case CODEC_ID_PCM_MULAW:
+ sh_audio->format = 0x7;
+ break;
+ }
+ if (title && title->value) {
+ sh_audio->gsh->title = talloc_strdup(sh_audio, title->value);
+ mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AID_%d_NAME=%s\n",
+ priv->audio_streams, title->value);
+ }
+ if (lang && lang->value) {
+ sh_audio->lang = talloc_strdup(sh_audio, lang->value);
+ mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AID_%d_LANG=%s\n",
+ priv->audio_streams, sh_audio->lang);
+ }
+ if (st->disposition & AV_DISPOSITION_DEFAULT)
+ sh_audio->gsh->default_track = 1;
+ if (mp_msg_test(MSGT_HEADER, MSGL_V))
+ print_wave_header(sh_audio->wf, MSGL_V);
+ st->discard = AVDISCARD_ALL;
+ stream_id = priv->audio_streams++;
+ break;
+ }
+ case AVMEDIA_TYPE_VIDEO: {
+ sh_video_t *sh_video;
+ BITMAPINFOHEADER *bih;
+ sh_video = new_sh_video_vid(demuxer, i, priv->video_streams);
+ if (!sh_video)
+ break;
+ sh_video->demuxer_codecname = codec_name;
+ if (set_demuxer_id)
+ sh_video->gsh->demuxer_id = st->id;
+ stream_type = "video";
+ priv->vstreams[priv->video_streams] = i;
+ sh_video->libav_codec_id = codec->codec_id;
+ sh_video->gsh->lavf_codec_tag = lavf_codec_tag;
+ bih = calloc(sizeof(*bih) + codec->extradata_size, 1);
+
+ if (codec->codec_id == CODEC_ID_RAWVIDEO) {
+ switch (codec->pix_fmt) {
+ case PIX_FMT_RGB24:
+ codec->codec_tag = MKTAG(24, 'B', 'G', 'R');
+ case PIX_FMT_BGR24:
+ codec->codec_tag = MKTAG(24, 'R', 'G', 'B');
+ }
+ if (!codec->codec_tag)
+ codec->codec_tag = avcodec_pix_fmt_to_codec_tag(codec->pix_fmt);
+ } else if (!codec->codec_tag) {
+ codec->codec_tag = mp_taglist_video(codec->codec_id);
+ /* 0 might mean either unset or rawvideo; if codec_id
+ * was not RAWVIDEO assume it's unset
+ */
+ if (!codec->codec_tag)
+ codec->codec_tag = -1;
+ }
+ bih->biSize = sizeof(*bih) + codec->extradata_size;
+ bih->biWidth = codec->width;
+ bih->biHeight = codec->height;
+ bih->biBitCount = codec->bits_per_coded_sample;
+ bih->biSizeImage = bih->biWidth * bih->biHeight * bih->biBitCount / 8;
+ bih->biCompression = codec->codec_tag;
+ sh_video->bih = bih;
+ sh_video->disp_w = codec->width;
+ sh_video->disp_h = codec->height;
+ if (st->time_base.den) { /* if container has time_base, use that */
+ sh_video->video.dwRate = st->time_base.den;
+ sh_video->video.dwScale = st->time_base.num;
+ } else {
+ sh_video->video.dwRate = codec->time_base.den;
+ sh_video->video.dwScale = codec->time_base.num;
+ }
+ /* Try to make up some frame rate value, even if it's not reliable.
+ * FPS information is needed to support subtitle formats which base
+ * timing on frame numbers.
+ * Libavformat seems to report no "reliable" FPS value for AVI files,
+ * while they are typically constant enough FPS that the value this
+ * heuristic makes up works with subtitles in practice.
+ */
+ double fps;
+ if (st->r_frame_rate.num)
+ fps = av_q2d(st->r_frame_rate);
+ else
+ fps = 1.0 / FFMAX(av_q2d(st->time_base),
+ av_q2d(st->codec->time_base) *
+ st->codec->ticks_per_frame);
+ sh_video->fps = fps;
+ sh_video->frametime = 1 / fps;
+ sh_video->format = bih->biCompression;
+ if (st->sample_aspect_ratio.num)
+ sh_video->aspect = codec->width * st->sample_aspect_ratio.num
+ / (float)(codec->height * st->sample_aspect_ratio.den);
+ else
+ sh_video->aspect = codec->width * codec->sample_aspect_ratio.num
+ / (float)(codec->height * codec->sample_aspect_ratio.den);
+ sh_video->i_bps = codec->bit_rate / 8;
+ if (title && title->value) {
+ sh_video->gsh->title = talloc_strdup(sh_video, title->value);
+ mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VID_%d_NAME=%s\n",
+ priv->video_streams, title->value);
+ }
+ mp_msg(MSGT_DEMUX, MSGL_DBG2, "aspect= %d*%d/(%d*%d)\n",
+ codec->width, codec->sample_aspect_ratio.num,
+ codec->height, codec->sample_aspect_ratio.den);
+
+ sh_video->ds = demuxer->video;
+ if (codec->extradata_size)
+ memcpy(sh_video->bih + 1, codec->extradata, codec->extradata_size);
+ if ( mp_msg_test(MSGT_HEADER, MSGL_V))
+ print_video_header(sh_video->bih, MSGL_V);
+ if (demuxer->video->id != priv->video_streams
+ && demuxer->video->id != -1)
+ st->discard = AVDISCARD_ALL;
+ else {
+ demuxer->video->id = i;
+ demuxer->video->sh = demuxer->v_streams[i];
+ }
+ stream_id = priv->video_streams++;
+ break;
+ }
+ case AVMEDIA_TYPE_SUBTITLE: {
+ sh_sub_t *sh_sub;
+ char type;
+ if (codec->codec_id == CODEC_ID_TEXT ||
+ codec->codec_id == AV_CODEC_ID_SUBRIP)
+ type = 't';
+ else if (codec->codec_id == CODEC_ID_MOV_TEXT)
+ type = 'm';
+ else if (codec->codec_id == CODEC_ID_SSA)
+ type = 'a';
+ else if (codec->codec_id == CODEC_ID_DVD_SUBTITLE)
+ type = 'v';
+ else if (codec->codec_id == CODEC_ID_XSUB)
+ type = 'x';
+ else if (codec->codec_id == CODEC_ID_DVB_SUBTITLE)
+ type = 'b';
+ else if (codec->codec_id == CODEC_ID_DVB_TELETEXT)
+ type = 'd';
+ else if (codec->codec_id == CODEC_ID_HDMV_PGS_SUBTITLE)
+ type = 'p';
+ else
+ break;
+ sh_sub = new_sh_sub_sid(demuxer, i, priv->sub_streams);
+ if (!sh_sub)
+ break;
+ sh_sub->demuxer_codecname = codec_name;
+ if (set_demuxer_id)
+ sh_sub->gsh->demuxer_id = st->id;
+ stream_type = "subtitle";
+ priv->sstreams[priv->sub_streams] = i;
+ sh_sub->libav_codec_id = codec->codec_id;
+ sh_sub->gsh->lavf_codec_tag = lavf_codec_tag;
+ sh_sub->type = type;
+ if (codec->extradata_size) {
+ sh_sub->extradata = malloc(codec->extradata_size);
+ memcpy(sh_sub->extradata, codec->extradata, codec->extradata_size);
+ sh_sub->extradata_len = codec->extradata_size;
+ }
+ if (title && title->value) {
+ sh_sub->gsh->title = talloc_strdup(sh_sub, title->value);
+ mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_SID_%d_NAME=%s\n",
+ priv->sub_streams, title->value);
+ }
+ if (lang && lang->value) {
+ sh_sub->lang = talloc_strdup(sh_sub, lang->value);
+ mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_SID_%d_LANG=%s\n",
+ priv->sub_streams, sh_sub->lang);
+ }
+ if (st->disposition & AV_DISPOSITION_DEFAULT)
+ sh_sub->gsh->default_track = 1;
+ stream_id = priv->sub_streams++;
+ break;
+ }
+ case AVMEDIA_TYPE_ATTACHMENT: {
+ AVDictionaryEntry *ftag = av_dict_get(st->metadata, "filename",
+ NULL, 0);
+ char *filename = ftag ? ftag->value : NULL;
+ if (st->codec->codec_id == CODEC_ID_TTF)
+ demuxer_add_attachment(demuxer, bstr0(filename),
+ bstr0("application/x-truetype-font"),
+ (struct bstr){codec->extradata,
+ codec->extradata_size});
+ break;
+ }
+ default:
+ st->discard = AVDISCARD_ALL;
+ }
+ if (stream_type) {
+ if (!avc && *stream_type == 's' && demuxer->s_streams[i])
+ codec_name = sh_sub_type2str((demuxer->s_streams[i])->type);
+ mp_msg(MSGT_DEMUX, MSGL_V, "[lavf] stream %d: %s (%s), -%cid %d",
+ i, stream_type, codec_name, *stream_type, stream_id);
+ if (lang && lang->value && *stream_type != 'v')
+ mp_msg(MSGT_DEMUX, MSGL_V, ", -%clang %s",
+ *stream_type, lang->value);
+ if (title && title->value)
+ mp_msg(MSGT_DEMUX, MSGL_V, ", %s", title->value);
+ mp_msg(MSGT_DEMUX, MSGL_V, "\n");
+ }
+}
+
+static demuxer_t *demux_open_lavf(demuxer_t *demuxer)
+{
+ struct MPOpts *opts = demuxer->opts;
+ struct lavfdopts *lavfdopts = &opts->lavfdopts;
+ AVFormatContext *avfc;
+ AVDictionaryEntry *t = NULL;
+ lavf_priv_t *priv = demuxer->priv;
+ int i;
+ char mp_filename[256] = "mp:";
+
+ stream_seek(demuxer->stream, 0);
+
+ avfc = avformat_alloc_context();
+
+ if (lavfdopts->cryptokey)
+ parse_cryptokey(avfc, lavfdopts->cryptokey);
+ if (matches_avinputformat_name(priv, "avi")) {
+ /* for avi libavformat returns the avi timestamps in .dts,
+ * some made-up stuff that's not really pts in .pts */
+ priv->use_dts = true;
+ demuxer->timestamp_type = TIMESTAMP_TYPE_SORT;
+ } else {
+ if (opts->user_correct_pts != 0)
+ avfc->flags |= AVFMT_FLAG_GENPTS;
+ }
+ if (index_mode == 0)
+ avfc->flags |= AVFMT_FLAG_IGNIDX;
+
+ if (lavfdopts->probesize) {
+ if (av_opt_set_int(avfc, "probesize", lavfdopts->probesize, 0) < 0)
+ mp_msg(MSGT_HEADER, MSGL_ERR,
+ "demux_lavf, couldn't set option probesize to %u\n",
+ lavfdopts->probesize);
+ }
+ if (lavfdopts->analyzeduration) {
+ if (av_opt_set_int(avfc, "analyzeduration",
+ lavfdopts->analyzeduration * AV_TIME_BASE, 0) < 0)
+ mp_msg(MSGT_HEADER, MSGL_ERR, "demux_lavf, couldn't set option "
+ "analyzeduration to %u\n", lavfdopts->analyzeduration);
+ }
+
+ if (lavfdopts->avopt) {
+ if (parse_avopts(avfc, lavfdopts->avopt) < 0) {
+ mp_msg(MSGT_HEADER, MSGL_ERR,
+ "Your options /%s/ look like gibberish to me pal\n",
+ lavfdopts->avopt);
+ return NULL;
+ }
+ }
+
+ if (demuxer->stream->url) {
+ if (demuxer->stream->lavf_type && !strcmp(demuxer->stream->lavf_type,
+ "rtsp")) {
+ // Remove possible leading ffmpeg:// or lavf://
+ char *name = strstr(demuxer->stream->url, "rtsp:");
+ av_strlcpy(mp_filename, name, sizeof(mp_filename));
+ } else
+ av_strlcat(mp_filename, demuxer->stream->url, sizeof(mp_filename));
+ } else
+ av_strlcat(mp_filename, "foobar.dummy", sizeof(mp_filename));
+
+ if (!(priv->avif->flags & AVFMT_NOFILE)) {
+ priv->pb = avio_alloc_context(priv->buffer, BIO_BUFFER_SIZE, 0,
+ demuxer, mp_read, NULL, mp_seek);
+ priv->pb->read_seek = mp_read_seek;
+ priv->pb->seekable = demuxer->stream->end_pos
+ && (demuxer->stream->flags & MP_STREAM_SEEK) == MP_STREAM_SEEK
+ ? AVIO_SEEKABLE_NORMAL : 0;
+ avfc->pb = priv->pb;
+ }
+
+ if (avformat_open_input(&avfc, mp_filename, priv->avif, NULL) < 0) {
+ mp_msg(MSGT_HEADER, MSGL_ERR,
+ "LAVF_header: avformat_open_input() failed\n");
+ return NULL;
+ }
+
+ priv->avfc = avfc;
+
+ if (avformat_find_stream_info(avfc, NULL) < 0) {
+ mp_msg(MSGT_HEADER, MSGL_ERR,
+ "LAVF_header: av_find_stream_info() failed\n");
+ return NULL;
+ }
+
+ /* Add metadata. */
+ while ((t = av_dict_get(avfc->metadata, "", t,
+ AV_DICT_IGNORE_SUFFIX)))
+ demux_info_add(demuxer, t->key, t->value);
+
+ for (i = 0; i < avfc->nb_chapters; i++) {
+ AVChapter *c = avfc->chapters[i];
+ uint64_t start = av_rescale_q(c->start, c->time_base,
+ (AVRational){1, 1000000000});
+ uint64_t end = av_rescale_q(c->end, c->time_base,
+ (AVRational){1, 1000000000});
+ t = av_dict_get(c->metadata, "title", NULL, 0);
+ demuxer_add_chapter(demuxer, t ? bstr0(t->value) : bstr0(NULL),
+ start, end);
+ }
+
+ for (i = 0; i < avfc->nb_streams; i++)
+ handle_stream(demuxer, avfc, i);
+ priv->nb_streams_last = avfc->nb_streams;
+
+ if (avfc->nb_programs) {
+ int p;
+ for (p = 0; p < avfc->nb_programs; p++) {
+ AVProgram *program = avfc->programs[p];
+ t = av_dict_get(program->metadata, "title", NULL, 0);
+ mp_msg(MSGT_HEADER, MSGL_INFO, "LAVF: Program %d %s\n",
+ program->id, t ? t->value : "");
+ mp_msg(MSGT_IDENTIFY, MSGL_V, "PROGRAM_ID=%d\n", program->id);
+ }
+ }
+
+ mp_msg(MSGT_HEADER, MSGL_V, "LAVF: %d audio and %d video streams found\n",
+ priv->audio_streams, priv->video_streams);
+ mp_msg(MSGT_HEADER, MSGL_V, "LAVF: build %d\n", LIBAVFORMAT_BUILD);
+ demuxer->audio->id = -2; // wait for higher-level code to select track
+ if (!priv->video_streams) {
+ if (!priv->audio_streams) {
+ mp_msg(MSGT_HEADER, MSGL_ERR,
+ "LAVF: no audio or video headers found - broken file?\n");
+ return NULL;
+ }
+ demuxer->video->id = -2; // audio-only
+ }
+
+ // disabled because unreliable per-stream bitrate values returned
+ // by libavformat trigger this heuristic incorrectly and break things
+#if 0
+ /* libavformat sets bitrate for mpeg based on pts at start and end
+ * of file, which fails for files with pts resets. So calculate our
+ * own bitrate estimate. */
+ if (priv->avif->flags & AVFMT_TS_DISCONT) {
+ for (int i = 0; i < avfc->nb_streams; i++)
+ priv->bitrate += avfc->streams[i]->codec->bit_rate;
+ /* pts-based is more accurate if there are no resets; try to make
+ * a somewhat reasonable guess */
+ if (!avfc->duration || avfc->duration == AV_NOPTS_VALUE
+ || priv->bitrate && (avfc->bit_rate < priv->bitrate / 2
+ || avfc->bit_rate > priv->bitrate * 2))
+ priv->seek_by_bytes = true;
+ if (!priv->bitrate)
+ priv->bitrate = 1440000;
+ }
+#endif
+ demuxer->accurate_seek = !priv->seek_by_bytes;
+
+ return demuxer;
+}
+
+static void check_internet_radio_hack(struct demuxer *demuxer)
+{
+ struct lavf_priv *priv = demuxer->priv;
+ struct AVFormatContext *avfc = priv->avfc;
+
+ if (!matches_avinputformat_name(priv, "ogg"))
+ return;
+ if (priv->nb_streams_last == avfc->nb_streams)
+ return;
+ if (avfc->nb_streams - priv->nb_streams_last == 1
+ && priv->video_streams == 0 && priv->sub_streams == 0
+ && demuxer->a_streams[priv->audio_streams - 1]->format == 0x566f // vorbis
+ && (priv->audio_streams == 2 || priv->internet_radio_hack)
+ && demuxer->a_streams[0]->format == 0x566f) {
+ // extradata match could be checked but would require parsing
+ // headers, as the comment section will vary
+ if (!priv->internet_radio_hack) {
+ mp_msg(MSGT_DEMUX, MSGL_V,
+ "[lavf] enabling internet ogg radio hack\n");
+ }
+ priv->internet_radio_hack = true;
+ // use new per-track metadata as global metadata
+ AVDictionaryEntry *t = NULL;
+ AVStream *stream = avfc->streams[avfc->nb_streams - 1];
+ while ((t = av_dict_get(stream->metadata, "", t,
+ AV_DICT_IGNORE_SUFFIX)))
+ demux_info_add(demuxer, t->key, t->value);
+ } else {
+ if (priv->internet_radio_hack)
+ mp_tmsg(MSGT_DEMUX, MSGL_WARN, "[lavf] Internet radio ogg hack "
+ "was enabled, but stream characteristics changed.\n"
+ "This may or may not work.\n");
+ priv->internet_radio_hack = false;
+ }
+}
+
+static int destroy_avpacket(void *pkt)
+{
+ av_free_packet(pkt);
+ return 0;
+}
+
+static int demux_lavf_fill_buffer(demuxer_t *demux, demux_stream_t *dsds)
+{
+ lavf_priv_t *priv = demux->priv;
+ demux_packet_t *dp;
+ demux_stream_t *ds;
+ int id;
+ mp_msg(MSGT_DEMUX, MSGL_DBG2, "demux_lavf_fill_buffer()\n");
+
+ demux->filepos = stream_tell(demux->stream);
+
+ AVPacket *pkt = talloc(NULL, AVPacket);
+ if (av_read_frame(priv->avfc, pkt) < 0) {
+ talloc_free(pkt);
+ return 0;
+ }
+ talloc_set_destructor(pkt, destroy_avpacket);
+
+ // handle any new streams that might have been added
+ for (id = priv->nb_streams_last; id < priv->avfc->nb_streams; id++)
+ handle_stream(demux, priv->avfc, id);
+ check_internet_radio_hack(demux);
+
+ priv->nb_streams_last = priv->avfc->nb_streams;
+
+ id = pkt->stream_index;
+
+ assert(id >= 0 && id < MAX_S_STREAMS);
+ if (demux->s_streams[id] && demux->sub->id == -1 &&
+ demux->s_streams[id]->gsh->demuxer_id == priv->autoselect_sub)
+ {
+ priv->autoselect_sub = -1;
+ demux->sub->id = id;
+ }
+
+ if (id == demux->audio->id || priv->internet_radio_hack) {
+ // audio
+ ds = demux->audio;
+ if (!ds->sh) {
+ ds->sh = demux->a_streams[id];
+ mp_msg(MSGT_DEMUX, MSGL_V, "Auto-selected LAVF audio ID = %d\n",
+ ds->id);
+ }
+ } else if (id == demux->video->id) {
+ // video
+ ds = demux->video;
+ if (!ds->sh) {
+ ds->sh = demux->v_streams[id];
+ mp_msg(MSGT_DEMUX, MSGL_V, "Auto-selected LAVF video ID = %d\n",
+ ds->id);
+ }
+ } else if (id == demux->sub->id) {
+ // subtitle
+ ds = demux->sub;
+ } else {
+ talloc_free(pkt);
+ return 1;
+ }
+
+ // If the packet has pointers to temporary fields that could be
+ // overwritten/freed by next av_read_frame(), copy them to persistent
+ // allocations so we can safely queue the packet for any length of time.
+ if (av_dup_packet(pkt) < 0)
+ abort();
+ dp = new_demux_packet_fromdata(pkt->data, pkt->size);
+ dp->avpacket = pkt;
+
+ int64_t ts = priv->use_dts ? pkt->dts : pkt->pts;
+ if (ts != AV_NOPTS_VALUE) {
+ dp->pts = ts * av_q2d(priv->avfc->streams[id]->time_base);
+ priv->last_pts = dp->pts * AV_TIME_BASE;
+ // always set duration for subtitles, even if AV_PKT_FLAG_KEY isn't set,
+ // otherwise they will stay on screen to long if e.g. ASS is demuxed
+ // from mkv
+ if ((ds == demux->sub || (pkt->flags & AV_PKT_FLAG_KEY)) &&
+ pkt->convergence_duration > 0)
+ dp->duration = pkt->convergence_duration *
+ av_q2d(priv->avfc->streams[id]->time_base);
+ }
+ dp->pos = demux->filepos;
+ dp->keyframe = pkt->flags & AV_PKT_FLAG_KEY;
+ // append packet to DS stream:
+ ds_add_packet(ds, dp);
+ return 1;
+}
+
+static void demux_seek_lavf(demuxer_t *demuxer, float rel_seek_secs,
+ float audio_delay, int flags)
+{
+ lavf_priv_t *priv = demuxer->priv;
+ int avsflags = 0;
+ mp_msg(MSGT_DEMUX, MSGL_DBG2, "demux_seek_lavf(%p, %f, %f, %d)\n",
+ demuxer, rel_seek_secs, audio_delay, flags);
+
+ if (priv->seek_by_bytes) {
+ int64_t pos = demuxer->filepos;
+ rel_seek_secs *= priv->bitrate / 8;
+ pos += rel_seek_secs;
+ av_seek_frame(priv->avfc, -1, pos, AVSEEK_FLAG_BYTE);
+ return;
+ }
+
+ if (flags & SEEK_ABSOLUTE)
+ priv->last_pts = 0;
+ else if (rel_seek_secs < 0)
+ avsflags = AVSEEK_FLAG_BACKWARD;
+ if (flags & SEEK_FORWARD)
+ avsflags = 0;
+ else if (flags & SEEK_BACKWARD)
+ avsflags = AVSEEK_FLAG_BACKWARD;
+ if (flags & SEEK_FACTOR) {
+ if (priv->avfc->duration == 0 || priv->avfc->duration == AV_NOPTS_VALUE)
+ return;
+ priv->last_pts += rel_seek_secs * priv->avfc->duration;
+ } else
+ priv->last_pts += rel_seek_secs * AV_TIME_BASE;
+ if (av_seek_frame(priv->avfc, -1, priv->last_pts, avsflags) < 0) {
+ avsflags ^= AVSEEK_FLAG_BACKWARD;
+ av_seek_frame(priv->avfc, -1, priv->last_pts, avsflags);
+ }
+}
+
+static int demux_lavf_control(demuxer_t *demuxer, int cmd, void *arg)
+{
+ lavf_priv_t *priv = demuxer->priv;
+
+