[vlc-devel] [PATCH 01/16] Add vlc_player_SelectTrackList

Roland Bewick roland.bewick at gmail.com
Wed May 22 09:18:05 CEST 2019


On 22/05/2019 1:59 PM, Thomas Guillem wrote:
> Hi,
>
> I'm AFK, I'll do my review and (hopefully) merge on friday or monday. This set looks promising.

Great, thanks for letting me know.

Roland

>
> On Tue, May 21, 2019, at 20:13, Roland Bewick wrote:
>> On 22/05/2019 1:08 AM, Roland Bewick wrote:
>>
>>> ---
>>>    include/vlc_es_out.h                          |  1 +
>>>    include/vlc_player.h                          | 26 ++++++++
>>>    modules/access/bluray.c                       |  1 +
>>>    modules/demux/adaptive/plumbing/FakeESOut.cpp |  1 +
>>>    src/input/es_out.c                            | 44 ++++++++++++++
>>>    src/input/es_out_timeshift.c                  |  1 +
>>>    src/input/input.c                             | 22 +++++++
>>>    src/input/input_internal.h                    |  5 ++
>>>    src/input/player.c                            | 85 +++++++++++++++++++++++++++
>>>    src/libvlccore.sym                            |  1 +
>>>    10 files changed, 187 insertions(+)
>>>
>>> diff --git a/include/vlc_es_out.h b/include/vlc_es_out.h
>>> index b690d570e9..47e2012ab9 100644
>>> --- a/include/vlc_es_out.h
>>> +++ b/include/vlc_es_out.h
>>> @@ -36,6 +36,7 @@ enum es_out_query_e
>>>    {
>>>        /* set or change the selected ES in its category (audio/video/spu) */
>>>        ES_OUT_SET_ES,      /* arg1= es_out_id_t*                   */
>>> +    ES_OUT_SET_ES_LIST, /* arg1= es_out_id_t**                  */
>>>        ES_OUT_UNSET_ES,    /* arg1= es_out_id_t* res=can fail      */
>>>        ES_OUT_RESTART_ES,  /* arg1= es_out_id_t*                   */
>>>    
>>> diff --git a/include/vlc_player.h b/include/vlc_player.h
>>> index 1aa5f8e687..f2df800797 100644
>>> --- a/include/vlc_player.h
>>> +++ b/include/vlc_player.h
>>> @@ -1675,6 +1675,32 @@ vlc_player_GetSelectedTrack(vlc_player_t *player, enum es_format_category_e cat)
>>>    VLC_API void
>>>    vlc_player_SelectTrack(vlc_player_t *player, vlc_es_id_t *es_id);
>>>    
>>> +
>>> +/**
>>> + * Select multiple tracks from a list of ES identifiers. Any currently
>>> + * selected track not referenced in the list will be unselected.
>>> + *
>>> + * @warning there is no guarantee all requested tracks will be selected.
>>> + * Only one audio track can be selected at a time. Two subtitle tracks
>>> + * can be selected simultaneously if dual subtitles are enabled.
>>> + *
>>> + * @warning behaviour is undefined if the list is not null-terminated.
>>> + *
>>> + * @note A successful call will trigger the
>>> + * vlc_player_cbs.on_track_selection_changed event for each track that has
>>> + * its selection state changed.
>>> + *
>>> + * @param player locked player instance
>>> + * @param cat VIDEO_ES, AUDIO_ES or SPU_ES
>>> + * @param es_id_list a null-terminated list of ES identifiers.
>>> + * (ES IDs can be retrieved from vlc_player_cbs.on_track_list_changed or
>>> + * vlc_player_GetTrackAt())
>>> + */
>>> +VLC_API void
>>> +vlc_player_SelectTrackList(vlc_player_t *player,
>>> +                           enum es_format_category_e cat,
>>> +                           vlc_es_id_t *const es_id_list[]);
>>> +
>>>    /**
>>>     * Select the next track
>>>     *
>>> diff --git a/modules/access/bluray.c b/modules/access/bluray.c
>>> index c452327aeb..cd88dcc4cf 100644
>>> --- a/modules/access/bluray.c
>>> +++ b/modules/access/bluray.c
>>> @@ -1546,6 +1546,7 @@ static int bluray_esOutControl(es_out_t *p_out, int i_query, va_list args)
>>>    
>>>            case ES_OUT_SET_ES_DEFAULT:
>>>            case ES_OUT_SET_ES:
>>> +        case ES_OUT_SET_ES_LIST:
>>>            case ES_OUT_UNSET_ES:
>>>            case ES_OUT_SET_ES_STATE:
>>>                i_ret = VLC_EGENERIC;
>>> diff --git a/modules/demux/adaptive/plumbing/FakeESOut.cpp b/modules/demux/adaptive/plumbing/FakeESOut.cpp
>>> index 69d00f7e7f..f1f274e0cf 100644
>>> --- a/modules/demux/adaptive/plumbing/FakeESOut.cpp
>>> +++ b/modules/demux/adaptive/plumbing/FakeESOut.cpp
>>> @@ -470,6 +470,7 @@ int FakeESOut::esOutControl_Callback(es_out_t *fakees, int i_query, va_list args
>>>            }
>>>    
>>>            case ES_OUT_SET_ES:
>>> +        case ES_OUT_SET_ES_LIST:
>>>            case ES_OUT_SET_ES_DEFAULT:
>>>            case ES_OUT_SET_ES_STATE:
>>>                return VLC_SUCCESS;
>>> diff --git a/src/input/es_out.c b/src/input/es_out.c
>>> index 2026fb8c22..933249c39b 100644
>>> --- a/src/input/es_out.c
>>> +++ b/src/input/es_out.c
>>> @@ -217,6 +217,8 @@ static void         EsOutDel    ( es_out_t *, es_out_id_t * );
>>>    
>>>    static void         EsOutTerminate( es_out_t * );
>>>    static void         EsOutSelect( es_out_t *, es_out_id_t *es, bool b_force );
>>> +static void         EsOutSelectList( es_out_t *, enum es_format_category_e cat,
>>> +                                     vlc_es_id_t **es_id_list );
>>>    static void         EsOutUpdateInfo( es_out_t *, es_out_id_t *es, const vlc_meta_t * );
>>>    static int          EsOutSetRecord(  es_out_t *, bool b_record );
>>>    
>>> @@ -2182,6 +2184,41 @@ static void EsOutSelect( es_out_t *out, es_out_id_t *es, bool b_force )
>>>            p_esprops->p_main_es = es;
>>>    }
>>>    
>>> +static void EsOutSelectList( es_out_t *out, enum es_format_category_e cat,
>>> +                             vlc_es_id_t **es_id_list )
>>> +{
>>> +
>>> +    es_out_sys_t *p_sys = container_of(out, es_out_sys_t, out);
>>> +    es_out_id_t *other;
>>> +
>>> +    foreach_es_then_es_slaves(other)
>>> +    {
>>> +        if( other->fmt.i_cat == cat )
>>> +        {
>>> +            bool select = false;
>>> +            for( size_t i = 0; ; i++ )
>>> +            {
>>> +                vlc_es_id_t *es_id = es_id_list[i];
>>> +                if( es_id == NULL )
>>> +                    break;
>>> +                else if( es_id->i_id == other->id.i_id )
>>> +                {
>>> +                    select = true;
>>> +                    break;
>>> +                }
>>> +            }
>>> +            if( !select && EsIsSelected( other ) )
>>> +            {
>>> +                EsOutUnselectEs( out, other, other->p_pgrm == p_sys->p_pgrm );
>>> +            }
>>> +            else if( select && !EsIsSelected( other ) )
>>> +            {
>>> +                EsOutSelectEs( out, other );
>>> +            }
>>> +        }
>>> +    }
>>> +}
>>> +
>>>    static void EsOutCreateCCChannels( es_out_t *out, vlc_fourcc_t codec, uint64_t i_bitmap,
>>>                                       const char *psz_descfmt, es_out_id_t *parent )
>>>    {
>>> @@ -2601,6 +2638,13 @@ static int EsOutVaControlLocked( es_out_t *out, int i_query, va_list args )
>>>            EsOutStopFreeVout( out );
>>>            return VLC_SUCCESS;
>>>        }
>>> +    case ES_OUT_SET_ES_LIST:
>>> +    {
>>> +        enum es_format_category_e cat = va_arg( args, enum es_format_category_e );
>>> +        vlc_es_id_t **es_id_list = va_arg( args, vlc_es_id_t ** );
>>> +        EsOutSelectList( out, cat, es_id_list );
>>> +        return VLC_SUCCESS;
>>> +    }
>>>        case ES_OUT_UNSET_ES:
>>>        {
>>>            es_out_id_t *es = va_arg( args, es_out_id_t * ), *other;
>>> diff --git a/src/input/es_out_timeshift.c b/src/input/es_out_timeshift.c
>>> index 406c6f2237..21a041a1f8 100644
>>> --- a/src/input/es_out_timeshift.c
>>> +++ b/src/input/es_out_timeshift.c
>>> @@ -738,6 +738,7 @@ static int ControlLocked( es_out_t *p_out, int i_query, va_list args )
>>>    
>>>        /* Invalid queries for this es_out level */
>>>        case ES_OUT_SET_ES_BY_ID:
>>> +    case ES_OUT_SET_ES_LIST:
>>>        case ES_OUT_RESTART_ES_BY_ID:
>>>        case ES_OUT_SET_ES_DEFAULT_BY_ID:
>>>        case ES_OUT_GET_ES_OBJECTS_BY_ID:
>>> diff --git a/src/input/input.c b/src/input/input.c
>>> index 381b85a9fd..eea40b59c1 100644
>>> --- a/src/input/input.c
>>> +++ b/src/input/input.c
>>> @@ -1712,6 +1712,18 @@ static void ControlRelease( int i_type, const input_control_param_t *p_param )
>>>        case INPUT_CONTROL_RESTART_ES:
>>>            vlc_es_id_Release( p_param->id );
>>>            break;
>>> +    case INPUT_CONTROL_SET_ES_LIST:
>>> +    {
>>> +        for( size_t i = 0; ; i++ )
>>> +        {
>>> +            vlc_es_id_t *es_id = p_param->list.ids[i];
>>> +            if( es_id == NULL )
>>> +                break;
>>> +            vlc_es_id_Release( es_id );
>>> +        }
>>> +        free( p_param->list.ids );
>>> +        break;
>>> +    }
>>>    
>>>        default:
>>>            break;
>>> @@ -2130,6 +2142,16 @@ static bool Control( input_thread_t *p_input,
>>>                    demux_Control( input_priv(p_input)->master->p_demux, DEMUX_SET_ES,
>>>                                   vlc_es_id_GetInputId( param.id ) );
>>>                break;
>>> +        case INPUT_CONTROL_SET_ES_LIST:
>>> +        {
>>> +            if( es_out_Control( input_priv(p_input)->p_es_out_display,
>>> +                                ES_OUT_SET_ES_LIST, param.list.cat,
>>> +                                param.list.ids ) == VLC_SUCCESS )
>>> +            {
>>> +                /* TODO: demux_Control(..., DEMUX_SET_ES_LIST, ... ) */
>>> +            }
>>> +            break;
>>> +        }
>>>            case INPUT_CONTROL_UNSET_ES:
>>>                es_out_Control( input_priv(p_input)->p_es_out_display,
>>>                                ES_OUT_UNSET_ES, param.id );
>>> diff --git a/src/input/input_internal.h b/src/input/input_internal.h
>>> index 18495881c2..3bcb5a9f83 100644
>>> --- a/src/input/input_internal.h
>>> +++ b/src/input/input_internal.h
>>> @@ -85,6 +85,10 @@ typedef union
>>>        vlc_viewpoint_t viewpoint;
>>>        vlc_es_id_t *id;
>>>        struct {
>>> +        enum es_format_category_e cat;
>>> +        vlc_es_id_t **ids;
>>> +    } list;
>>> +    struct {
>>>            bool b_fast_seek;
>>>            vlc_tick_t i_val;
>>>        } time;
>>> @@ -247,6 +251,7 @@ enum input_control_e
>>>        INPUT_CONTROL_RESTART_ES_BY_ID,
>>>    
>>>        INPUT_CONTROL_SET_ES,
>>> +    INPUT_CONTROL_SET_ES_LIST,  // select a list of ES atomically
>>>        INPUT_CONTROL_UNSET_ES,
>>>        INPUT_CONTROL_RESTART_ES,
>>>    
>>> diff --git a/src/input/player.c b/src/input/player.c
>>> index da02375a66..551b9928f1 100644
>>> --- a/src/input/player.c
>>> +++ b/src/input/player.c
>>> @@ -1312,6 +1312,91 @@ vlc_player_SelectTrack(vlc_player_t *player, vlc_es_id_t *id)
>>>        vlc_player_vout_OSDTrack(player, id, true);
>>>    }
>>>    
>>> +void
>>> +vlc_player_SelectTrackList(vlc_player_t *player,
>>> +                           enum es_format_category_e cat,
>>> +                           vlc_es_id_t *const es_id_list[])
>>> +{
>>> +    struct vlc_player_input *input = vlc_player_get_input_locked(player);
>>> +    if (!input)
>>> +        return;
>>> +
>>> +    /* First, count and hold all the ES Ids.
>>> +       Ids will be released in input.c:ControlRelease */
>>> +    size_t id_count;
>>> +    for (id_count = 0; ; id_count++)
>>> +    {
>>> +        vlc_es_id_t *es_id = es_id_list[id_count];
>>> +        if (es_id == NULL)
>>> +            break;
>>> +
>>> +        vlc_es_id_Hold( es_id );
>>> +    }
>>> +
>>> +    /* Copy es_id_list into an allocated list so that it remains in memory until
>>> +       selection completes. The list will be freed in input.c:ControlRelease */
>>> +    struct vlc_es_id_t **allocated_ids =
>>> +        malloc(sizeof(vlc_es_id_t *) * (id_count + 1));
>>> +
>>> +    for (size_t i = 0; i <= id_count; i++)
>>> +    {
>>> +        allocated_ids[i] = es_id_list[i];
>>> +    }
>>> +
>>> +    /* Attempt to select all the requested tracks */
>>> +    input_ControlPush( input->thread, INPUT_CONTROL_SET_ES_LIST,
>>> +        &(input_control_param_t) {
>>> +            .list.cat = cat,
>>> +            .list.ids = allocated_ids,
>>> +        } );
>>> +
>>> +    /* Display track selection message */
>>> +    bool selected_new_track = false;
>>> +    for (size_t i = 0; i < id_count; i++)
>>> +    {
>>> +        vlc_es_id_t *es_id = es_id_list[i];
>>> +
>>> +        const struct vlc_player_track *track = vlc_player_GetTrack(player, es_id);
>>> +        assert(track);
>>> +
>>> +        if (!track->selected)
>>> +        {
>>> +            vlc_player_vout_OSDTrack(player, es_id, true);
>>> +            selected_new_track = true;
>>> +        }
>>> +    }
>>> +
>>> +    if (!selected_new_track)
>>> +    {
>>> +        /* Display track deselection message */
>>> +        size_t count = vlc_player_GetTrackCount(player, cat);
>>> +        if (!count)
>>> +            return;
>>> +
>>> +        for (size_t i = 0; i < count; ++i)
>>> +        {
>>> +            const struct vlc_player_track *track =
>>> +                vlc_player_GetTrackAt(player, cat, i);
>>> +            assert(track);
>>> +            if (track->selected)
>>> +            {
>>> +                bool selected = false;
>>> +                for (size_t j = 0; j < id_count; j++)
>>> +                {
>>> +                    if (es_id_list[j] == track->es_id)
>>> +                    {
>>> +                        selected = true;
>>> +                        break;
>>> +                    }
>>> +                }
>>> +
>>> +                if (!selected)
>>> +                    vlc_player_vout_OSDTrack(player, track->es_id, false);
>>> +            }
>>> +        }
>>> +    }
>>> +}
>>> +
>>>    static void
>>>    vlc_player_CycleTrack(vlc_player_t *player, enum es_format_category_e cat,
>>>                          bool next)
>>> diff --git a/src/libvlccore.sym b/src/libvlccore.sym
>>> index efc07fbb25..03a503e1ea 100644
>>> --- a/src/libvlccore.sym
>>> +++ b/src/libvlccore.sym
>>> @@ -856,6 +856,7 @@ vlc_player_SelectTeletextPage
>>>    vlc_player_SelectTitle
>>>    vlc_player_SelectTitleIdx
>>>    vlc_player_SelectTrack
>>> +vlc_player_SelectTrackList
>>>    vlc_player_SetAssociatedSubsFPS
>>>    vlc_player_SetAtoBLoop
>>>    vlc_player_SetAudioDelay
>> Hi again,
>>
>> This patch set uses the more general-purpose vlc_player_SelectTrackList
>> to control dual subtitle selection.
>>
>> The majority of the changes can be seen in the following commits:
>>
>> - Patch 01 (Implementation of vlc_player_SelectTrackList and
>> EsOutSelectList)
>> - Patch 02 (Demux control for new INPUT_CONTROL_SET_ES_LIST event)
>> - Patch 05 (Using vlc_player_SelectTrackList from the QT subtitle menu)
>> - Patch 13 (Using vlc_player_SelectTrackList for secondary subtitle
>> track cycling)
>>
>> Please let me know if you have any comments.
>>
>> Thanks,
>> Roland
>>
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