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author | wm4 <wm4@nowhere> | 2013-02-09 15:15:19 +0100 |
---|---|---|
committer | wm4 <wm4@nowhere> | 2013-02-10 17:25:56 +0100 |
commit | 4d016a92c876e98797c362d05468bf27d5a85414 (patch) | |
tree | 8959f0e63885dee7c5d25e4c7f8b0ac4cea7fd69 /audio/decode/dec_audio.c | |
parent | bb8da972052beef22b2dff2ba1003eff5cc1a797 (diff) | |
download | mpv-4d016a92c876e98797c362d05468bf27d5a85414.tar.bz2 mpv-4d016a92c876e98797c362d05468bf27d5a85414.tar.xz |
core: redo how codecs are mapped, remove codecs.conf
Use codec names instead of FourCCs to identify codecs. Rewrite how
codecs are selected and initialized. Now each decoder exports a list
of decoders (and the codec it supports) via add_decoders(). The order
matters, and the first decoder for a given decoder is preferred over
the other decoders. E.g. all ad_mpg123 decoders are preferred over
ad_lavc, because it comes first in the mpcodecs_ad_drivers array.
Likewise, decoders within ad_lavc that are enumerated first by
libavcodec (using av_codec_next()) are preferred. (This is actually
critical to select h264 software decoding by default instead of vdpau.
libavcodec and ffmpeg/avconv use the same method to select decoders by
default, so we hope this is sane.)
The codec names follow libavcodec's codec names as defined by
AVCodecDescriptor.name (see libavcodec/codec_desc.c). Some decoders
have names different from the canonical codec name. The AVCodecDescriptor
API is relatively new, so we need a compatibility layer for older
libavcodec versions for codec names that are referenced internally,
and which are different from the decoder name. (Add a configure check
for that, because checking versions is getting way too messy.)
demux/codec_tags.c is generated from the former codecs.conf (minus
"special" decoders like vdpau, and excluding the mappings that are the
same as the mappings libavformat's exported RIFF tables). It contains
all the mappings from FourCCs to codec name. This is needed for
demux_mkv, demux_mpg, demux_avi and demux_asf. demux_lavf will set the
codec as determined by libavformat, while the other demuxers have to do
this on their own, using the mp_set_audio/video_codec_from_tag()
functions. Note that the sh_audio/video->format members don't uniquely
identify the codec anymore, and sh->codec takes over this role.
Replace the --ac/--vc/--afm/--vfm with new --vd/--ad options, which
provide cover the functionality of the removed switched.
Note: there's no CODECS_FLAG_FLIP flag anymore. This means some obscure
container/video combinations (e.g. the sample Film_200_zygo_pro.mov)
are played flipped. ffplay/avplay doesn't handle this properly either,
so we don't care and blame ffmeg/libav instead.
Diffstat (limited to 'audio/decode/dec_audio.c')
-rw-r--r-- | audio/decode/dec_audio.c | 228 |
1 files changed, 77 insertions, 151 deletions
diff --git a/audio/decode/dec_audio.c b/audio/decode/dec_audio.c index 0d58bf6012..cac33a9a31 100644 --- a/audio/decode/dec_audio.c +++ b/audio/decode/dec_audio.c @@ -21,14 +21,16 @@ #include <unistd.h> #include <assert.h> +#include "demux/codec_tags.h" + #include "config.h" +#include "core/codecs.h" #include "core/mp_msg.h" #include "core/bstr.h" #include "stream/stream.h" #include "demux/demux.h" -#include "core/codec-cfg.h" #include "demux/stheader.h" #include "dec_audio.h" @@ -41,27 +43,7 @@ int fakemono = 0; struct af_cfg af_cfg = {1, NULL}; // Configuration for audio filters -void afm_help(void) -{ - int i; - mp_tmsg(MSGT_DECAUDIO, MSGL_INFO, - "Available (compiled-in) audio codec families/drivers:\n"); - mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AUDIO_DRIVERS\n"); - mp_msg(MSGT_DECAUDIO, MSGL_INFO, " afm: info: (comment)\n"); - for (i = 0; mpcodecs_ad_drivers[i] != NULL; i++) - if (mpcodecs_ad_drivers[i]->info->comment - && mpcodecs_ad_drivers[i]->info->comment[0]) - mp_msg(MSGT_DECAUDIO, MSGL_INFO, "%9s %s (%s)\n", - mpcodecs_ad_drivers[i]->info->short_name, - mpcodecs_ad_drivers[i]->info->name, - mpcodecs_ad_drivers[i]->info->comment); - else - mp_msg(MSGT_DECAUDIO, MSGL_INFO, "%9s %s\n", - mpcodecs_ad_drivers[i]->info->short_name, - mpcodecs_ad_drivers[i]->info->name); -} - -static int init_audio_codec(sh_audio_t *sh_audio) +static int init_audio_codec(sh_audio_t *sh_audio, const char *decoder) { assert(!sh_audio->initialized); resync_audio_stream(sh_audio); @@ -77,7 +59,7 @@ static int init_audio_codec(sh_audio_t *sh_audio) } sh_audio->audio_out_minsize = 8192; // default, preinit() may change it if (!sh_audio->ad_driver->preinit(sh_audio)) { - mp_tmsg(MSGT_DECAUDIO, MSGL_ERR, "ADecoder preinit failed :(\n"); + mp_tmsg(MSGT_DECAUDIO, MSGL_ERR, "Audio decoder preinit failed.\n"); return 0; } @@ -104,8 +86,8 @@ static int init_audio_codec(sh_audio_t *sh_audio) abort(); sh_audio->a_buffer_len = 0; - if (!sh_audio->ad_driver->init(sh_audio)) { - mp_tmsg(MSGT_DECAUDIO, MSGL_V, "ADecoder init failed :(\n"); + if (!sh_audio->ad_driver->init(sh_audio, decoder)) { + mp_tmsg(MSGT_DECAUDIO, MSGL_V, "Audio decoder init failed.\n"); uninit_audio(sh_audio); // free buffers return 0; } @@ -125,140 +107,83 @@ static int init_audio_codec(sh_audio_t *sh_audio) return 1; } -static int init_audio(sh_audio_t *sh_audio, char *codecname, char *afm, - int status, stringset_t *selected) +struct mp_decoder_list *mp_audio_decoder_list(void) { - int force = 0; - if (codecname && codecname[0] == '+') { - codecname = &codecname[1]; - force = 1; - } - sh_audio->codec = NULL; - while (1) { - const ad_functions_t *mpadec; - sh_audio->ad_driver = 0; - if (!(sh_audio->codec = find_audio_codec(sh_audio->format, NULL, - sh_audio->codec, force))) - break; - // ok we found one codec - if (stringset_test(selected, sh_audio->codec->name)) - continue; // already tried & failed - if (codecname && strcmp(sh_audio->codec->name, codecname)) - continue; // -ac - if (afm && strcmp(sh_audio->codec->drv, afm)) - continue; // afm doesn't match - if (!force && sh_audio->codec->status < status) - continue; // too unstable - stringset_add(selected, sh_audio->codec->name); // tagging it - // ok, it matches all rules, let's find the driver! - int i; - for (i = 0; mpcodecs_ad_drivers[i] != NULL; i++) - if (!strcmp(mpcodecs_ad_drivers[i]->info->short_name, - sh_audio->codec->drv)) - break; - mpadec = mpcodecs_ad_drivers[i]; - if (!mpadec) { // driver not available (==compiled in) - mp_tmsg(MSGT_DECAUDIO, MSGL_ERR, "Requested audio codec family " - "[%s] (afm=%s) not available.\nEnable it at compilation.\n", - sh_audio->codec->name, sh_audio->codec->drv); - continue; - } - // it's available, let's try to init! - // init() - mp_tmsg(MSGT_DECAUDIO, MSGL_V, "Opening audio decoder: [%s] %s\n", - mpadec->info->short_name, mpadec->info->name); - sh_audio->ad_driver = mpadec; - if (!init_audio_codec(sh_audio)) { - mp_tmsg(MSGT_DECAUDIO, MSGL_WARN, "Audio decoder init failed for " - "codecs.conf entry \"%s\".\n", sh_audio->codec->name); - continue; // try next... - } - // Yeah! We got it! - return 1; + struct mp_decoder_list *list = talloc_zero(NULL, struct mp_decoder_list); + for (int i = 0; mpcodecs_ad_drivers[i] != NULL; i++) + mpcodecs_ad_drivers[i]->add_decoders(list); + return list; +} + +static struct mp_decoder_list *mp_select_audio_decoders(const char *codec, + char *selection) +{ + struct mp_decoder_list *list = mp_audio_decoder_list(); + struct mp_decoder_list *new = mp_select_decoders(list, codec, selection); + talloc_free(list); + return new; +} + +static const struct ad_functions *find_driver(const char *name) +{ + for (int i = 0; mpcodecs_ad_drivers[i] != NULL; i++) { + if (strcmp(mpcodecs_ad_drivers[i]->name, name) == 0) + return mpcodecs_ad_drivers[i]; } - return 0; + return NULL; } -int init_best_audio_codec(sh_audio_t *sh_audio, char **audio_codec_list, - char **audio_fm_list) +int init_best_audio_codec(sh_audio_t *sh_audio, char *audio_decoders) { - stringset_t selected; - char *ac_l_default[2] = { - "", (char *) NULL - }; - // hack: - if (!audio_codec_list) - audio_codec_list = ac_l_default; - // Go through the codec.conf and find the best codec... - sh_audio->initialized = 0; - stringset_init(&selected); - while (!sh_audio->initialized && *audio_codec_list) { - char *audio_codec = *(audio_codec_list++); - if (audio_codec[0]) { - if (audio_codec[0] == '-') { - // disable this codec: - stringset_add(&selected, audio_codec + 1); - } else { - // forced codec by name: - mp_tmsg(MSGT_DECAUDIO, MSGL_INFO, "Forced audio codec: %s\n", - audio_codec); - init_audio(sh_audio, audio_codec, NULL, -1, &selected); - } - } else { - int status; - // try in stability order: UNTESTED, WORKING, BUGGY. - // never try CRASHING. - if (audio_fm_list) { - char **fmlist = audio_fm_list; - // try first the preferred codec families: - while (!sh_audio->initialized && *fmlist) { - char *audio_fm = *(fmlist++); - mp_tmsg(MSGT_DECAUDIO, MSGL_INFO, - "Trying to force audio codec driver family %s...\n", - audio_fm); - for (status = CODECS_STATUS__MAX; - status >= CODECS_STATUS__MIN; --status) - if (init_audio(sh_audio, NULL, audio_fm, status, - &selected)) - break; - } - } - if (!sh_audio->initialized) - for (status = CODECS_STATUS__MAX; status >= CODECS_STATUS__MIN; - --status) - if (init_audio(sh_audio, NULL, NULL, status, &selected)) - break; + assert(!sh_audio->initialized); + + struct mp_decoder_entry *decoder = NULL; + struct mp_decoder_list *list = + mp_select_audio_decoders(sh_audio->gsh->codec, audio_decoders); + + mp_print_decoders(MSGT_DECAUDIO, MSGL_V, "Codec list:", list); + + for (int n = 0; n < list->num_entries; n++) { + struct mp_decoder_entry *sel = &list->entries[n]; + const struct ad_functions *driver = find_driver(sel->family); + if (!driver) + continue; + mp_tmsg(MSGT_DECAUDIO, MSGL_V, "Opening audio decoder %s:%s\n", + sel->family, sel->decoder); + sh_audio->ad_driver = driver; + if (init_audio_codec(sh_audio, sel->decoder)) { + decoder = sel; + break; } + sh_audio->ad_driver = NULL; + mp_tmsg(MSGT_DECAUDIO, MSGL_WARN, "Audio decoder init failed for " + "%s:%s\n", sel->family, sel->decoder); } - stringset_free(&selected); - if (!sh_audio->initialized) { - mp_tmsg(MSGT_DECAUDIO, MSGL_ERR, - "Cannot find codec for audio format 0x%X.\n", - sh_audio->format); - return 0; // failed + if (sh_audio->initialized) { + sh_audio->gsh->decoder_desc = + talloc_asprintf(NULL, "%s [%s:%s]", decoder->desc, decoder->family, + decoder->decoder); + mp_msg(MSGT_DECAUDIO, MSGL_INFO, "Selected audio codec: %s\n", + sh_audio->gsh->decoder_desc); + mp_msg(MSGT_DECAUDIO, MSGL_V, + "AUDIO: %d Hz, %d ch, %s, %3.1f kbit/%3.2f%% (ratio: %d->%d)\n", + sh_audio->samplerate, sh_audio->channels, + af_fmt2str_short(sh_audio->sample_format), + sh_audio->i_bps * 8 * 0.001, + ((float) sh_audio->i_bps / sh_audio->o_bps) * 100.0, + sh_audio->i_bps, sh_audio->o_bps); + mp_msg(MSGT_IDENTIFY, MSGL_INFO, + "ID_AUDIO_BITRATE=%d\nID_AUDIO_RATE=%d\n" "ID_AUDIO_NCH=%d\n", + sh_audio->i_bps * 8, sh_audio->samplerate, sh_audio->channels); + } else { + mp_msg(MSGT_DECAUDIO, MSGL_ERR, + "Failed to initialize an audio decoder for codec '%s'.\n", + sh_audio->gsh->codec ? sh_audio->gsh->codec : "<unknown>"); } - mp_tmsg(MSGT_DECAUDIO, MSGL_INFO, "Selected audio codec: %s [%s]\n", - sh_audio->codecname ? sh_audio->codecname : sh_audio->codec->info, - sh_audio->ad_driver->info->print_name ? - sh_audio->ad_driver->info->print_name : - sh_audio->ad_driver->info->short_name); - mp_tmsg(MSGT_DECAUDIO, MSGL_V, - "Audio codecs.conf entry: %s (%s) afm: %s\n", - sh_audio->codec->name, sh_audio->codec->info, sh_audio->codec->drv); - mp_msg(MSGT_DECAUDIO, MSGL_V, - "AUDIO: %d Hz, %d ch, %s, %3.1f kbit/%3.2f%% (ratio: %d->%d)\n", - sh_audio->samplerate, sh_audio->channels, - af_fmt2str_short(sh_audio->sample_format), - sh_audio->i_bps * 8 * 0.001, - ((float) sh_audio->i_bps / sh_audio->o_bps) * 100.0, - sh_audio->i_bps, sh_audio->o_bps); - mp_msg(MSGT_IDENTIFY, MSGL_INFO, - "ID_AUDIO_BITRATE=%d\nID_AUDIO_RATE=%d\n" "ID_AUDIO_NCH=%d\n", - sh_audio->i_bps * 8, sh_audio->samplerate, sh_audio->channels); - - return 1; // success + talloc_free(list); + return sh_audio->initialized; } void uninit_audio(sh_audio_t *sh_audio) @@ -270,11 +195,12 @@ void uninit_audio(sh_audio_t *sh_audio) sh_audio->afilter = NULL; } if (sh_audio->initialized) { - mp_tmsg(MSGT_DECAUDIO, MSGL_V, "Uninit audio: %s\n", - sh_audio->codec->drv); + mp_tmsg(MSGT_DECAUDIO, MSGL_V, "Uninit audio.\n"); sh_audio->ad_driver->uninit(sh_audio); sh_audio->initialized = 0; } + talloc_free(sh_audio->gsh->decoder_desc); + sh_audio->gsh->decoder_desc = NULL; av_freep(&sh_audio->a_buffer); av_freep(&sh_audio->a_in_buffer); } |